mcs/class/Managed.Windows.Forms/System.Windows.Forms/DataGridView.cs

   1 // Permission is hereby granted, free of charge, to any person obtaining
   2 // a copy of this software and associated documentation files (the
   3 // "Software"), to deal in the Software without restriction, including
   4 // without limitation the rights to use, copy, modify, merge, publish,
   5 // distribute, sublicense, and/or sell copies of the Software, and to
   6 // permit persons to whom the Software is furnished to do so, subject to
   7 // the following conditions:
   8 //
   9 // The above copyright notice and this permission notice shall be
  10 // included in all copies or substantial portions of the Software.
  11 //
  12 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  13 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  14 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  15 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  16 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  17 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  18 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  19 //
  20 // Copyright (c) 2005 Novell, Inc. (http://www.novell.com)
  21 //
  22 // Author:
  23 //      Pedro Martínez Juliá <pedromj@gmail.com>
  24 //      Ivan N. Zlatev <contact@i-nz.net>
  25 //
  26
  27 using System;
  28 using System.ComponentModel;
  29 using System.Runtime.InteropServices;
  30 using System.Drawing;
  31 using System.Reflection;
  32 using System.Collections;
  33 using System.Text;
  34 using System.Collections.Generic;
  35
  36 namespace System.Windows.Forms {
  37
  38         [ComVisibleAttribute(true)]
  39         [ClassInterfaceAttribute(ClassInterfaceType.AutoDispatch)]
  40         [Designer("System.Windows.Forms.Design.DataGridViewDesigner, " + Consts.AssemblySystem_Design, "System.ComponentModel.Design.IDesigner")]
  41         [Editor("System.Windows.Forms.Design.DataGridViewComponentEditor, " + Consts.AssemblySystem_Design, typeof (System.ComponentModel.ComponentEditor))]
  42         [ComplexBindingProperties ("DataSource", "DataMember")]
  43         [DefaultEvent ("CellContentClick")]
  44         [Docking (DockingBehavior.Ask)]
  45         public class DataGridView : Control, ISupportInitialize, IBindableComponent, IDropTarget
  46         {
  47
  48                 private DataGridViewAdvancedBorderStyle adjustedTopLeftHeaderBorderStyle;
  49                 private DataGridViewAdvancedBorderStyle advancedCellBorderStyle;
  50                 private DataGridViewAdvancedBorderStyle advancedColumnHeadersBorderStyle;
  51                 private DataGridViewAdvancedBorderStyle advancedRowHeadersBorderStyle;
  52                 private bool allowUserToAddRows;
  53                 private bool allowUserToDeleteRows;
  54                 private bool allowUserToOrderColumns;
  55                 private bool allowUserToResizeColumns;
  56                 private bool allowUserToResizeRows;
  57                 private DataGridViewCellStyle alternatingRowsDefaultCellStyle;
  58                 private Point anchor_cell;
  59                 private bool autoGenerateColumns;
  60                 private bool autoSize;
  61                 private DataGridViewAutoSizeColumnsMode autoSizeColumnsMode;
  62                 private DataGridViewAutoSizeRowsMode autoSizeRowsMode;
  63                 private Color backColor;
  64                 private Color backgroundColor;
  65                 private Image backgroundImage;
  66                 private BorderStyle borderStyle;
  67                 private DataGridViewCellBorderStyle cellBorderStyle;
  68                 private DataGridViewClipboardCopyMode clipboardCopyMode;
  69                 private DataGridViewHeaderBorderStyle columnHeadersBorderStyle;
  70                 private DataGridViewCellStyle columnHeadersDefaultCellStyle;
  71                 private int columnHeadersHeight;
  72                 private DataGridViewColumnHeadersHeightSizeMode columnHeadersHeightSizeMode;
  73                 private bool columnHeadersVisible;
  74                 private DataGridViewColumnCollection columns;
  75                 private DataGridViewCell currentCell;
  76                 private Point currentCellAddress;
  77                 //private DataGridViewRow currentRow;
  78                 private string dataMember;
  79                 private object dataSource;
  80                 private DataGridViewCellStyle defaultCellStyle;
  81                 //private Control editingControl;
  82                 private DataGridViewEditMode editMode;
  83                 private bool enableHeadersVisualStyles = true;
  84                 private DataGridViewCell firstDisplayedCell;
  85                 private int firstDisplayedScrollingColumnHiddenWidth;
  86                 private int firstDisplayedScrollingColumnIndex;
  87                 private int firstDisplayedScrollingRowIndex;
  88                 private Color gridColor = Color.FromKnownColor(KnownColor.ControlDark);
  89                 private int horizontalScrollingOffset;
  90                 private DataGridViewCell hover_cell = null;
  91                 private bool isCurrentCellDirty;
  92                 //private bool isCurrentRowDirty;
  93                 private bool multiSelect;
  94                 private bool readOnly;
  95                 private DataGridViewHeaderBorderStyle rowHeadersBorderStyle;
  96                 private DataGridViewCellStyle rowHeadersDefaultCellStyle;
  97                 private bool rowHeadersVisible;
  98                 private int rowHeadersWidth;
  99                 private DataGridViewRowHeadersWidthSizeMode rowHeadersWidthSizeMode;
 100                 private DataGridViewRowCollection rows;
 101                 private DataGridViewCellStyle rowsDefaultCellStyle;
 102                 private DataGridViewRow rowTemplate;
 103                 private ScrollBars scrollBars;
 104                 private DataGridViewSelectionMode selectionMode;
 105                 private bool showCellErrors;
 106                 private bool showCellToolTips;
 107                 private bool showEditingIcon;
 108                 private bool showRowErrors;
 109                 private DataGridViewColumn sortedColumn = null;
 110                 private SortOrder sortOrder;
 111                 private bool standardTab;
 112                 private DataGridViewHeaderCell topLeftHeaderCell;
 113                 private Cursor userSetCursor;
 114                 private int verticalScrollingOffset;
 115                 private bool virtualMode;
 116                 private HScrollBar horizontalScrollBar;
 117                 private VScrollBar verticalScrollBar;
 118                 private Control editingControl;
 119                 private bool is_autogenerating_columns = false;
 120                 private bool is_binding = false;
 121                 private bool new_row_editing = false;
 122
 123                 // These are used to implement selection behaviour with SHIFT pressed.
 124                 private int selected_row = -1;
 125                 private int selected_column = -1;
 126
 127                 // Stuff for error Tooltips
 128                 private Timer tooltip_timer;
 129                 private ToolTip tooltip_window;
 130                 private DataGridViewCell tooltip_currently_showing;
 131
 132                 private DataGridViewSelectedRowCollection selected_rows;
 133                 private DataGridViewSelectedColumnCollection selected_columns;
 134                 private DataGridViewRow editing_row;
 135
 136                 DataGridViewHeaderCell pressed_header_cell;
 137                 DataGridViewHeaderCell entered_header_cell;
 138
 139                 // For column/row resizing via mouse
 140                 private bool column_resize_active = false;
 141                 private bool row_resize_active = false;
 142                 private int resize_band = -1;
 143                 private int resize_band_start = 0;
 144                 private int resize_band_delta = 0;
 145
 146                 public DataGridView ()
 147                 {
 148                         SetStyle (ControlStyles.Opaque, true);
 149                         //SetStyle (ControlStyles.UserMouse, true);
 150                         SetStyle (ControlStyles.OptimizedDoubleBuffer, true);
 151
 152                         adjustedTopLeftHeaderBorderStyle = new DataGridViewAdvancedBorderStyle();
 153                         adjustedTopLeftHeaderBorderStyle.All = DataGridViewAdvancedCellBorderStyle.Single;
 154                         advancedCellBorderStyle = new DataGridViewAdvancedBorderStyle();
 155                         advancedCellBorderStyle.All = DataGridViewAdvancedCellBorderStyle.Single;
 156                         advancedColumnHeadersBorderStyle = new DataGridViewAdvancedBorderStyle();
 157                         advancedColumnHeadersBorderStyle.All = DataGridViewAdvancedCellBorderStyle.Single;
 158                         advancedRowHeadersBorderStyle = new DataGridViewAdvancedBorderStyle();
 159                         advancedRowHeadersBorderStyle.All = DataGridViewAdvancedCellBorderStyle.Single;
 160                         alternatingRowsDefaultCellStyle = new DataGridViewCellStyle();
 161                         allowUserToAddRows = true;
 162                         allowUserToDeleteRows = true;
 163                         allowUserToOrderColumns = false;
 164                         allowUserToResizeColumns = true;
 165                         allowUserToResizeRows = true;
 166                         autoGenerateColumns = true;
 167                         autoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.None;
 168                         autoSizeRowsMode = DataGridViewAutoSizeRowsMode.None;
 169                         backColor = Control.DefaultBackColor;
 170                         backgroundColor = SystemColors.AppWorkspace;
 171                         borderStyle = BorderStyle.FixedSingle;
 172                         cellBorderStyle = DataGridViewCellBorderStyle.Single;
 173                         clipboardCopyMode = DataGridViewClipboardCopyMode.EnableWithAutoHeaderText;
 174                         columnHeadersBorderStyle = DataGridViewHeaderBorderStyle.Single;
 175                         columnHeadersDefaultCellStyle = new DataGridViewCellStyle();
 176                         columnHeadersDefaultCellStyle.BackColor = SystemColors.Control;
 177                         columnHeadersDefaultCellStyle.ForeColor = SystemColors.WindowText;
 178                         columnHeadersDefaultCellStyle.SelectionBackColor = SystemColors.Highlight;
 179                         columnHeadersDefaultCellStyle.SelectionForeColor = SystemColors.HighlightText;
 180                         columnHeadersDefaultCellStyle.Font = this.Font;
 181                         columnHeadersDefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleLeft;
 182                         columnHeadersDefaultCellStyle.WrapMode = DataGridViewTriState.True;
 183                         columnHeadersHeight = 23;
 184                         columnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.EnableResizing;
 185                         columnHeadersVisible = true;
 186                         columns = CreateColumnsInstance();
 187                         columns.CollectionChanged += OnColumnCollectionChanged;
 188                         currentCellAddress = new Point (-1, -1);
 189                         dataMember = String.Empty;
 190                         defaultCellStyle = new DataGridViewCellStyle();
 191                         defaultCellStyle.BackColor = SystemColors.Window;
 192                         defaultCellStyle.ForeColor = SystemColors.ControlText;
 193                         defaultCellStyle.SelectionBackColor = SystemColors.Highlight;
 194                         defaultCellStyle.SelectionForeColor = SystemColors.HighlightText;
 195                         defaultCellStyle.Font = this.Font;
 196                         defaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleLeft;
 197                         defaultCellStyle.WrapMode = DataGridViewTriState.False;
 198                         editMode = DataGridViewEditMode.EditOnKeystrokeOrF2;
 199                         firstDisplayedScrollingColumnHiddenWidth = 0;
 200                         isCurrentCellDirty = false;
 201                         multiSelect = true;
 202                         readOnly = false;
 203                         rowHeadersBorderStyle = DataGridViewHeaderBorderStyle.Single;
 204                         rowHeadersDefaultCellStyle = (DataGridViewCellStyle) columnHeadersDefaultCellStyle.Clone ();
 205                         rowHeadersVisible = true;
 206                         rowHeadersWidth = 41;
 207                         rowHeadersWidthSizeMode = DataGridViewRowHeadersWidthSizeMode.EnableResizing;
 208                         rows = CreateRowsInstance();
 209                         rowsDefaultCellStyle = new DataGridViewCellStyle();
 210                         selectionMode = DataGridViewSelectionMode.RowHeaderSelect;
 211                         showCellErrors = true;
 212                         showEditingIcon = true;
 213                         scrollBars = ScrollBars.Both;
 214                         userSetCursor = Cursor.Current;
 215                         virtualMode = false;
 216
 217                         horizontalScrollBar = new HScrollBar();
 218                         horizontalScrollBar.Scroll += OnHScrollBarScroll;
 219                         horizontalScrollBar.Visible = false;
 220
 221                         verticalScrollBar = new VScrollBar();
 222                         verticalScrollBar.Scroll += OnVScrollBarScroll;
 223                         verticalScrollBar.Visible = false;
 224
 225                         Controls.AddRange (new Control[] {horizontalScrollBar, verticalScrollBar});
 226                 }
 227
 228                 void ISupportInitialize.BeginInit ()
 229                 {
 230                 }
 231
 232                 void ISupportInitialize.EndInit ()
 233                 {
 234                 }
 235
 236                 // Propiedades
 237
 238                 [Browsable (false)]
 239                 [EditorBrowsable (EditorBrowsableState.Advanced)]
 240                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 241                 public virtual DataGridViewAdvancedBorderStyle AdjustedTopLeftHeaderBorderStyle {
 242                         get { return adjustedTopLeftHeaderBorderStyle; }
 243                 }
 244
 245                 [Browsable (false)]
 246                 [EditorBrowsable (EditorBrowsableState.Advanced)]
 247                 public DataGridViewAdvancedBorderStyle AdvancedCellBorderStyle {
 248                         get { return advancedCellBorderStyle; }
 249                 }
 250
 251                 [Browsable (false)]
 252                 [EditorBrowsable (EditorBrowsableState.Advanced)]
 253                 public DataGridViewAdvancedBorderStyle AdvancedColumnHeadersBorderStyle {
 254                         get { return advancedColumnHeadersBorderStyle; }
 255                 }
 256
 257                 [Browsable (false)]
 258                 [EditorBrowsable (EditorBrowsableState.Advanced)]
 259                 public DataGridViewAdvancedBorderStyle AdvancedRowHeadersBorderStyle {
 260                         get { return advancedRowHeadersBorderStyle; }
 261                 }
 262
 263                 [DefaultValue (true)]
 264                 public bool AllowUserToAddRows {
 265                         get {
 266                                 if (allowUserToAddRows && DataManager != null)
 267                                         return DataManager.AllowNew;
 268                                 return allowUserToAddRows;
 269                         }
 270                         set {
 271                                 if (allowUserToAddRows != value) {
 272                                         allowUserToAddRows = value;
 273                                         if (!value) {
 274                                                 if (new_row_editing)
 275                                                         CancelEdit ();
 276                                                 RemoveEditingRow ();
 277                                         } else {
 278                                                 PrepareEditingRow (false, false);
 279                                         }
 280                                         OnAllowUserToAddRowsChanged(EventArgs.Empty);
 281                                         Invalidate ();
 282                                 }
 283                         }
 284                 }
 285
 286                 [DefaultValue (true)]
 287                 public bool AllowUserToDeleteRows {
 288                         get {
 289                                 if (allowUserToDeleteRows && DataManager != null)
 290                                         return DataManager.AllowRemove;
 291                                 return allowUserToDeleteRows;
 292                         }
 293                         set {
 294                                 if (allowUserToDeleteRows != value) {
 295                                         allowUserToDeleteRows = value;
 296                                         OnAllowUserToDeleteRowsChanged(EventArgs.Empty);
 297                                 }
 298                         }
 299                 }
 300
 301                 [DefaultValue (false)]
 302                 public bool AllowUserToOrderColumns {
 303                         get { return allowUserToOrderColumns; }
 304                         set {
 305                                 if (allowUserToOrderColumns != value) {
 306                                         allowUserToOrderColumns = value;
 307                                         OnAllowUserToOrderColumnsChanged(EventArgs.Empty);
 308                                 }
 309                         }
 310                 }
 311
 312                 [DefaultValue (true)]
 313                 public bool AllowUserToResizeColumns {
 314                         get { return allowUserToResizeColumns; }
 315                         set {
 316                                 if (allowUserToResizeColumns != value) {
 317                                         allowUserToResizeColumns = value;
 318                                         OnAllowUserToResizeColumnsChanged(EventArgs.Empty);
 319                                 }
 320                         }
 321                 }
 322
 323                 [DefaultValue (true)]
 324                 public bool AllowUserToResizeRows {
 325                         get { return allowUserToResizeRows; }
 326                         set {
 327                                 if (allowUserToResizeRows != value) {
 328                                         allowUserToResizeRows = value;
 329                                         OnAllowUserToResizeRowsChanged(EventArgs.Empty);
 330                                 }
 331                         }
 332                 }
 333
 334                 public DataGridViewCellStyle AlternatingRowsDefaultCellStyle {
 335                         get { return alternatingRowsDefaultCellStyle; }
 336                         set {
 337                                 if (alternatingRowsDefaultCellStyle != value) {
 338                                         alternatingRowsDefaultCellStyle = value;
 339                                         OnAlternatingRowsDefaultCellStyleChanged(EventArgs.Empty);
 340                                         Invalidate();
 341                                 }
 342                         }
 343                 }
 344
 345                 [Browsable (false)]
 346                 [EditorBrowsable (EditorBrowsableState.Advanced)]
 347                 [DefaultValue (true)]
 348                 public bool AutoGenerateColumns {
 349                         get { return autoGenerateColumns; }
 350                         set {
 351                                 if (autoGenerateColumns != value) {
 352                                         autoGenerateColumns = value;
 353                                         OnAutoGenerateColumnsChanged(EventArgs.Empty);
 354                                 }
 355                         }
 356                 }
 357
 358                 public override bool AutoSize {
 359                         get { return autoSize; }
 360                         set {
 361                                 if (autoSize != value) {
 362                                         autoSize = value;
 363                                         //OnAutoSizeChanged(EventArgs.Empty);
 364                                 }
 365                         }
 366                 }
 367
 368                 [DefaultValue (DataGridViewAutoSizeColumnsMode.None)]
 369                 public DataGridViewAutoSizeColumnsMode AutoSizeColumnsMode {
 370                         get { return autoSizeColumnsMode; }
 371                         set {
 372                                 if (!Enum.IsDefined(typeof(DataGridViewAutoSizeColumnsMode), value)) {
 373                                         throw new InvalidEnumArgumentException("Value is not valid DataGridViewAutoSizeColumnsMode.");
 374                                 }
 375                                 if (value == DataGridViewAutoSizeColumnsMode.ColumnHeader && columnHeadersVisible == false) {
 376                                         foreach (DataGridViewColumn col in columns) {
 377                                                 if (col.AutoSizeMode == DataGridViewAutoSizeColumnMode.NotSet) {
 378                                                                 throw new InvalidOperationException("Cant set this property to ColumnHeader in this DataGridView.");
 379                                                 }
 380                                         }
 381                                 }
 382                                 if (value == DataGridViewAutoSizeColumnsMode.Fill) {
 383                                         foreach (DataGridViewColumn col in columns) {
 384                                                 if (col.AutoSizeMode == DataGridViewAutoSizeColumnMode.NotSet) {
 385                                                         if (col.Frozen) {
 386                                                                 throw new InvalidOperationException("Cant set this property to Fill in this DataGridView.");
 387                                                         }
 388                                                 }
 389                                         }
 390                                 }
 391
 392                                 autoSizeColumnsMode = value;
 393                                 AutoResizeColumns (value);
 394                                 Invalidate ();
 395                         }
 396                 }
 397
 398                 [DefaultValue (DataGridViewAutoSizeRowsMode.None)]
 399                 public DataGridViewAutoSizeRowsMode AutoSizeRowsMode {
 400                         get { return autoSizeRowsMode; }
 401                         set {
 402                                 if (autoSizeRowsMode != value) {
 403                                         if (!Enum.IsDefined(typeof(DataGridViewAutoSizeRowsMode), value)) {
 404                                                 throw new InvalidEnumArgumentException("Value is not valid DataGridViewRowsMode.");
 405                                         }
 406                                         if ((value == DataGridViewAutoSizeRowsMode.AllHeaders || value == DataGridViewAutoSizeRowsMode.DisplayedHeaders) && rowHeadersVisible == false) {
 407                                                 throw new InvalidOperationException("Cant set this property to AllHeaders or DisplayedHeaders in this DataGridView.");
 408                                         }
 409                                         autoSizeRowsMode = value;
 410
 411                                         if (value == DataGridViewAutoSizeRowsMode.None)
 412                                                 foreach (DataGridViewRow row in Rows)
 413                                                         row.ResetToExplicitHeight ();
 414                                         else
 415                                                 AutoResizeRows (value);
 416
 417                                         OnAutoSizeRowsModeChanged(new DataGridViewAutoSizeModeEventArgs(false));
 418                                         Invalidate ();
 419                                         ////////////////////////////////////////////////////////////////
 420                                 }
 421                         }
 422                 }
 423
 424                 [Browsable (false)]
 425                 [EditorBrowsable (EditorBrowsableState.Never)]
 426                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 427                 public override Color BackColor {
 428                         get { return backColor; }
 429                         set {
 430                                 if (backColor != value) {
 431                                         backColor = value;
 432                                         OnBackColorChanged(EventArgs.Empty);
 433                                 }
 434                         }
 435                 }
 436
 437                 public Color BackgroundColor {
 438                         get { return backgroundColor; }
 439                         set {
 440                                 if (backgroundColor != value) {
 441                                         if (value == Color.Empty) {
 442                                                 throw new ArgumentException("Cant set an Empty color.");
 443                                         }
 444                                         backgroundColor = value;
 445                                         OnBackgroundColorChanged(EventArgs.Empty);
 446                                 }
 447                         }
 448                 }
 449
 450                 [Browsable (false)]
 451                 [EditorBrowsable (EditorBrowsableState.Never)]
 452                 public override Image BackgroundImage {
 453                         get { return backgroundImage; }
 454                         set {
 455                                 if (backgroundImage != value) {
 456                                         backgroundImage = value;
 457                                         OnBackgroundImageChanged(EventArgs.Empty);
 458                                 }
 459                         }
 460                 }
 461
 462                 [Browsable (false)]
 463                 [EditorBrowsable (EditorBrowsableState.Never)]
 464                 public override ImageLayout BackgroundImageLayout {
 465                         get { return base.BackgroundImageLayout; }
 466                         set { base.BackgroundImageLayout = value; }
 467                 }
 468
 469                 [DefaultValue (BorderStyle.FixedSingle)]
 470                 public BorderStyle BorderStyle {
 471                         get { return borderStyle; }
 472                         set {
 473                                 if (borderStyle != value) {
 474                                         if (!Enum.IsDefined(typeof(BorderStyle), value)) {
 475                                                 throw new InvalidEnumArgumentException("Invalid border style.");
 476                                         }
 477                                         borderStyle = value;
 478                                         OnBorderStyleChanged(EventArgs.Empty);
 479                                 }
 480                         }
 481                 }
 482
 483                 internal int BorderWidth {
 484                         get {
 485                                 switch (BorderStyle) {
 486                                 case BorderStyle.Fixed3D:
 487                                         return 2;
 488                                 case BorderStyle.FixedSingle:
 489                                         return 1;
 490                                 case BorderStyle.None:
 491                                 default:
 492                                         return 0;
 493                                 }
 494                         }
 495                 }
 496
 497                 [Browsable (true)]
 498                 [DefaultValue (DataGridViewCellBorderStyle.Single)]
 499                 public DataGridViewCellBorderStyle CellBorderStyle {
 500                         get { return cellBorderStyle; }
 501                         set {
 502                                 if (cellBorderStyle != value) {
 503                                         if (value == DataGridViewCellBorderStyle.Custom)
 504                                                 throw new ArgumentException ("CellBorderStyle cannot be set to Custom.");
 505
 506                                         cellBorderStyle = value;
 507
 508                                         DataGridViewAdvancedBorderStyle border = new DataGridViewAdvancedBorderStyle ();
 509
 510                                         switch (cellBorderStyle) {
 511                                                 case DataGridViewCellBorderStyle.Single:
 512                                                         border.All = DataGridViewAdvancedCellBorderStyle.Single;
 513                                                         break;
 514                                                 case DataGridViewCellBorderStyle.Raised:
 515                                                 case DataGridViewCellBorderStyle.RaisedVertical:
 516                                                         border.Bottom = DataGridViewAdvancedCellBorderStyle.None;
 517                                                         border.Top = DataGridViewAdvancedCellBorderStyle.None;
 518                                                         border.Left = DataGridViewAdvancedCellBorderStyle.Outset;
 519                                                         border.Right = DataGridViewAdvancedCellBorderStyle.Outset;
 520                                                         break;
 521                                                 case DataGridViewCellBorderStyle.Sunken:
 522                                                         border.All = DataGridViewAdvancedCellBorderStyle.Inset;
 523                                                         break;
 524                                                 case DataGridViewCellBorderStyle.None:
 525                                                         border.All = DataGridViewAdvancedCellBorderStyle.None;
 526                                                         break;
 527                                                 case DataGridViewCellBorderStyle.SingleVertical:
 528                                                         border.Bottom = DataGridViewAdvancedCellBorderStyle.None;
 529                                                         border.Top = DataGridViewAdvancedCellBorderStyle.None;
 530                                                         border.Left = DataGridViewAdvancedCellBorderStyle.None;
 531                                                         border.Right = DataGridViewAdvancedCellBorderStyle.Single;
 532                                                         break;
 533                                                 case DataGridViewCellBorderStyle.SunkenVertical:
 534                                                         border.Bottom = DataGridViewAdvancedCellBorderStyle.None;
 535                                                         border.Top = DataGridViewAdvancedCellBorderStyle.None;
 536                                                         border.Left = DataGridViewAdvancedCellBorderStyle.Inset;
 537                                                         border.Right = DataGridViewAdvancedCellBorderStyle.Inset;
 538                                                         break;
 539                                                 case DataGridViewCellBorderStyle.SingleHorizontal:
 540                                                 case DataGridViewCellBorderStyle.SunkenHorizontal:
 541                                                         border.Bottom = DataGridViewAdvancedCellBorderStyle.Inset;
 542                                                         border.Top = DataGridViewAdvancedCellBorderStyle.Inset;
 543                                                         border.Left = DataGridViewAdvancedCellBorderStyle.None;
 544                                                         border.Right = DataGridViewAdvancedCellBorderStyle.None;
 545                                                         break;
 546                                                 case DataGridViewCellBorderStyle.RaisedHorizontal:
 547                                                         border.Bottom = DataGridViewAdvancedCellBorderStyle.Outset;
 548                                                         border.Top = DataGridViewAdvancedCellBorderStyle.Outset;
 549                                                         border.Left = DataGridViewAdvancedCellBorderStyle.None;
 550                                                         border.Right = DataGridViewAdvancedCellBorderStyle.None;
 551                                                         break;
 552                                         }
 553
 554                                         advancedCellBorderStyle = border;
 555
 556                                         OnCellBorderStyleChanged (EventArgs.Empty);
 557                                 }
 558                         }
 559                 }
 560
 561                 [Browsable (true)]
 562                 [DefaultValue (DataGridViewClipboardCopyMode.EnableWithAutoHeaderText)]
 563                 public DataGridViewClipboardCopyMode ClipboardCopyMode {
 564                         get { return clipboardCopyMode; }
 565                         set { clipboardCopyMode = value; }
 566                 }
 567
 568                 [Browsable (false)]
 569                 [EditorBrowsable (EditorBrowsableState.Advanced)]
 570                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 571                 [DefaultValue (0)]
 572                 public int ColumnCount {
 573                         get { return columns.Count; }
 574                         set {
 575                                 if (value < 0) {
 576                                         throw new ArgumentOutOfRangeException("ColumnCount",
 577                                                 "ColumnCount must be >= 0.");
 578                                 }
 579                                 if (dataSource != null) {
 580                                         throw new InvalidOperationException("Cant change column count if DataSource is set.");
 581                                 }
 582                                 if (value < columns.Count) {
 583                                         for (int i = columns.Count -1; i >= value; i--) {
 584                                                 columns.RemoveAt(i);
 585                                         }
 586                                 }
 587                                 else if (value > columns.Count) {
 588                                         for (int i = columns.Count; i < value; i++) {
 589                                                 DataGridViewTextBoxColumn col = new DataGridViewTextBoxColumn ();
 590                                                 columns.Add(col);
 591                                         }
 592                                 }
 593                         }
 594                 }
 595
 596                 [Browsable (true)]
 597                 [DefaultValue (DataGridViewHeaderBorderStyle.Raised)]
 598                 public DataGridViewHeaderBorderStyle ColumnHeadersBorderStyle {
 599                         get { return columnHeadersBorderStyle; }
 600                         set {
 601                                 if (columnHeadersBorderStyle != value) {
 602                                         columnHeadersBorderStyle = value;
 603                                         OnColumnHeadersBorderStyleChanged(EventArgs.Empty);
 604                                 }
 605                         }
 606                 }
 607
 608                 [AmbientValue (null)]
 609                 public DataGridViewCellStyle ColumnHeadersDefaultCellStyle {
 610                         get { return columnHeadersDefaultCellStyle; }
 611                         set {
 612                                 if (columnHeadersDefaultCellStyle != value) {
 613                                         columnHeadersDefaultCellStyle = value;
 614                                         OnColumnHeadersDefaultCellStyleChanged(EventArgs.Empty);
 615                                 }
 616                         }
 617                 }
 618
 619                 [Localizable (true)]
 620                 public int ColumnHeadersHeight {
 621                         get { return columnHeadersHeight; }
 622                         set {
 623                                 if (columnHeadersHeight != value) {
 624                                         if (value < 4) {
 625                                                 throw new ArgumentOutOfRangeException("ColumnHeadersHeight",
 626                                                         "Column headers height cant be less than 4.");
 627                                         }
 628                                         if (value > 32768 ) {
 629                                                 throw new ArgumentOutOfRangeException("ColumnHeadersHeight",
 630                                                         "Column headers height cannot be more than 32768.");
 631                                         }
 632                                         columnHeadersHeight = value;
 633                                         OnColumnHeadersHeightChanged(EventArgs.Empty);
 634
 635                                         if (columnHeadersVisible)
 636                                                 Invalidate ();
 637                                 }
 638                         }
 639                 }
 640
 641                 [RefreshProperties (RefreshProperties.All)]
 642                 [DefaultValue (DataGridViewColumnHeadersHeightSizeMode.EnableResizing)]
 643                 public DataGridViewColumnHeadersHeightSizeMode ColumnHeadersHeightSizeMode {
 644                         get { return columnHeadersHeightSizeMode; }
 645                         set {
 646                                 if (columnHeadersHeightSizeMode != value) {
 647                                         if (!Enum.IsDefined(typeof(DataGridViewColumnHeadersHeightSizeMode), value)) {
 648                                                 throw new InvalidEnumArgumentException("Value is not a valid DataGridViewColumnHeadersHeightSizeMode.");
 649                                         }
 650                                         columnHeadersHeightSizeMode = value;
 651                                         OnColumnHeadersHeightSizeModeChanged(new DataGridViewAutoSizeModeEventArgs(false));
 652                                 }
 653                         }
 654                 }
 655
 656                 [DefaultValue (true)]
 657                 public bool ColumnHeadersVisible {
 658                         get { return columnHeadersVisible; }
 659                         set {
 660                                 if (columnHeadersVisible != value) {
 661                                         columnHeadersVisible = value;
 662                                         Invalidate ();
 663                                 }
 664                         }
 665                 }
 666
 667                 [MergableProperty (false)]
 668                 [Editor ("System.Windows.Forms.Design.DataGridViewColumnCollectionEditor, " + Consts.AssemblySystem_Design, typeof (System.Drawing.Design.UITypeEditor))]
 669                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
 670                 public DataGridViewColumnCollection Columns {
 671                         get { return columns; }
 672                 }
 673
 674                 [Browsable (false)]
 675                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 676                 public DataGridViewCell CurrentCell {
 677                         get { return currentCell; }
 678                         set {
 679                                 /////////////////////////////////////////////////////
 680                                 /// *** InvalidOperationException ***
 681                                 /// Changes to the specified cell cannot be committed
 682                                 /// to the data cache, or the new cell is in a hidden
 683                                 /// row.
 684                                 /////////////////////////////////////////////////////
 685                                 if (value == null)
 686                                         MoveCurrentCell (-1, -1, true, false, false, true);
 687                                 else if (value.DataGridView != this)
 688                                         throw new ArgumentException("The cell is not in this DataGridView.");
 689                                 else
 690                                         MoveCurrentCell (value.OwningColumn.Index, value.OwningRow.Index, true, false, false, true);
 691                         }
 692                 }
 693
 694                 [Browsable (false)]
 695                 public Point CurrentCellAddress {
 696                         get { return currentCellAddress; }
 697                 }
 698
 699                 [Browsable (false)]
 700                 public DataGridViewRow CurrentRow {
 701                         get {
 702                                 if (currentCell != null)
 703                                         return currentCell.OwningRow;
 704                                 return null;
 705                         }
 706                 }
 707
 708                 [DefaultValue ("")]
 709                 [Editor ("System.Windows.Forms.Design.DataMemberListEditor, " + Consts.AssemblySystem_Design, typeof (System.Drawing.Design.UITypeEditor))]
 710                 public string DataMember {
 711                         get { return dataMember; }
 712                         set {
 713                                 if (dataMember != value) {
 714                                         dataMember = value;
 715                                         if (BindingContext != null)
 716                                                 ReBind ();
 717                                         OnDataMemberChanged(EventArgs.Empty);
 718                                 }
 719                         }
 720                 }
 721
 722                 [RefreshProperties (RefreshProperties.Repaint)]
 723                 [DefaultValue (null)]
 724                 [AttributeProvider (typeof (IListSource))]
 725                 public object DataSource {
 726                         get { return dataSource; }
 727                         set {
 728                                 /* The System.Windows.Forms.DataGridView class supports the standard Windows Forms data-binding model. This means the data source can be of any type that implements:
 729                                  - the System.Collections.IList interface, including one-dimensional arrays.
 730                                  - the System.ComponentModel.IListSource interface, such as the System.Data.DataTable and System.Data.DataSet classes.
 731                                  - the System.ComponentModel.IBindingList interface, such as the System.ComponentModel.Collections.BindingList<> class.
 732                                  - the System.ComponentModel.IBindingListView interface, such as the System.Windows.Forms.BindingSource class.
 733                                 */
 734                                 if (!(value == null || value is IList || value is IListSource || value is IBindingList || value is IBindingListView))
 735                                         throw new NotSupportedException ("Type cannot be bound.");
 736
 737                                 if (value != DataSource) {
 738                                         if (IsHandleCreated && value != null && BindingContext != null && BindingContext[value] != null)
 739                                                 DataMember = String.Empty;
 740                                         ClearBinding ();
 741
 742
 743                                         // Do not set dataSource prior to the BindingContext check because there is some lazy initialization
 744                                         // code which might result in double call to ReBind here and in OnBindingContextChanged
 745                                         if (BindingContext != null) {
 746                                                 dataSource = value;
 747                                                 ReBind ();
 748                                         } else {
 749                                                 dataSource = value;
 750                                         }
 751
 752                                         OnDataSourceChanged (EventArgs.Empty);
 753                                 }
 754                         }
 755                 }
 756
 757                 internal CurrencyManager DataManager {
 758                         get {
 759                                 if (DataSource != null && BindingContext != null) {
 760                                         string dataMember = DataMember;
 761                                         if (dataMember == null)
 762                                                 dataMember = String.Empty;
 763                                         return (CurrencyManager) this.BindingContext[DataSource, dataMember];
 764                                 }
 765                                 return null;
 766                         }
 767                 }
 768
 769                 [AmbientValue (null)]
 770                 public DataGridViewCellStyle DefaultCellStyle {
 771                         get { return defaultCellStyle; }
 772                         set {
 773                                 if (defaultCellStyle != value) {
 774                                         defaultCellStyle = value;
 775                                         OnDefaultCellStyleChanged(EventArgs.Empty);
 776                                 }
 777                         }
 778                 }
 779
 780                 public override Rectangle DisplayRectangle {
 781                         get { return base.DisplayRectangle; }
 782                 }
 783
 784                 [Browsable (false)]
 785                 [EditorBrowsable (EditorBrowsableState.Advanced)]
 786                 public Control EditingControl {
 787                         get {
 788                                 return editingControl;
 789                         }
 790                 }
 791
 792                 [Browsable (false)]
 793                 [EditorBrowsable (EditorBrowsableState.Advanced)]
 794                 public Panel EditingPanel {
 795                         get { throw new NotImplementedException(); }
 796                 }
 797
 798                 [DefaultValue (DataGridViewEditMode.EditOnKeystrokeOrF2)]
 799                 public DataGridViewEditMode EditMode {
 800                         get { return editMode; }
 801                         set {
 802                                 if (editMode != value) {
 803                                         editMode = value;
 804                                         OnEditModeChanged(EventArgs.Empty);
 805                                 }
 806                         }
 807                 }
 808
 809                 [DefaultValue (true)]
 810                 public bool EnableHeadersVisualStyles {
 811                         get { return enableHeadersVisualStyles; }
 812                         set { enableHeadersVisualStyles = value; }
 813                 }
 814
 815                 internal DataGridViewHeaderCell EnteredHeaderCell {
 816                         get { return entered_header_cell; }
 817                         set {
 818                                 if (entered_header_cell == value)
 819                                         return;
 820                                 if (ThemeEngine.Current.DataGridViewHeaderCellHasHotStyle (this)) {
 821                                         Region area_to_invalidate = new Region ();
 822                                         area_to_invalidate.MakeEmpty ();
 823                                         if (entered_header_cell != null)
 824                                                 area_to_invalidate.Union (GetHeaderCellBounds (entered_header_cell));
 825                                         entered_header_cell = value;
 826                                         if (entered_header_cell != null)
 827                                                 area_to_invalidate.Union (GetHeaderCellBounds (entered_header_cell));
 828                                         Invalidate (area_to_invalidate);
 829                                         area_to_invalidate.Dispose ();
 830                                 } else
 831                                         entered_header_cell = value;
 832                         }
 833                 }
 834
 835                 [Browsable (false)]
 836                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 837                 public DataGridViewCell FirstDisplayedCell {
 838                         get { return firstDisplayedCell; }
 839                         set {
 840                                 if (value.DataGridView != this) {
 841                                         throw new ArgumentException("The cell is not in this DataGridView.");
 842                                 }
 843                                 firstDisplayedCell = value;
 844                         }
 845                 }
 846
 847                 [Browsable (false)]
 848                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 849                 [EditorBrowsable (EditorBrowsableState.Advanced)]
 850                 public int FirstDisplayedScrollingColumnHiddenWidth {
 851                         get { return firstDisplayedScrollingColumnHiddenWidth; }
 852                 }
 853
 854                 [Browsable (false)]
 855                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 856                 public int FirstDisplayedScrollingColumnIndex {
 857                         get { return firstDisplayedScrollingColumnIndex; }
 858                         set { firstDisplayedScrollingColumnIndex = value; }
 859                 }
 860
 861                 [Browsable (false)]
 862                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 863                 public int FirstDisplayedScrollingRowIndex {
 864                         get { return firstDisplayedScrollingRowIndex; }
 865                         set { firstDisplayedScrollingRowIndex = value; }
 866                 }
 867
 868                 [Browsable (false)]
 869                 [EditorBrowsable (EditorBrowsableState.Advanced)]
 870                 public override Font Font {
 871                         get { return base.Font; }
 872                         set { base.Font = value; }
 873                 }
 874
 875                 [Browsable (false)]
 876                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 877                 [EditorBrowsable (EditorBrowsableState.Advanced)]
 878                 public override Color ForeColor {
 879                         get { return base.ForeColor; }
 880                         set { base.ForeColor = value; }
 881                 }
 882
 883                 public Color GridColor {
 884                         get { return gridColor; }
 885                         set {
 886                                 if (gridColor != value) {
 887                                         if (value == Color.Empty) {
 888                                                 throw new ArgumentException("Cant set an Empty color.");
 889                                         }
 890                                         gridColor = value;
 891                                         OnGridColorChanged(EventArgs.Empty);
 892                                 }
 893                         }
 894                 }
 895
 896                 [Browsable (false)]
 897                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 898                 public int HorizontalScrollingOffset {
 899                         get { return horizontalScrollingOffset; }
 900                         set { horizontalScrollingOffset = value; }
 901                 }
 902
 903                 [Browsable (false)]
 904                 public bool IsCurrentCellDirty {
 905                         get { return isCurrentCellDirty; }
 906                 }
 907
 908                 [Browsable (false)]
 909                 public bool IsCurrentCellInEditMode {
 910                         get {
 911                                 if (currentCell == null) {
 912                                         return false;
 913                                 }
 914                                 return currentCell.IsInEditMode;
 915                         }
 916                 }
 917
 918                 [Browsable (false)]
 919                 public bool IsCurrentRowDirty {
 920                         get {
 921                                 if (!virtualMode)
 922                                         return IsCurrentCellDirty;
 923
 924                                 QuestionEventArgs args = new QuestionEventArgs ();
 925                                 OnRowDirtyStateNeeded (args);
 926                                 return args.Response;
 927                         }
 928                 }
 929
 930                 [Browsable (false)]
 931                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 932                 public DataGridViewCell this [int columnIndex, int rowIndex] {
 933                         get { return rows[rowIndex].Cells[columnIndex]; }
 934                         set { rows[rowIndex].Cells[columnIndex] = value; }
 935                 }
 936
 937                 [Browsable (false)]
 938                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 939                 public DataGridViewCell this [string columnName, int rowIndex] {
 940                         get {
 941                                 int columnIndex = -1;
 942                                 foreach (DataGridViewColumn col in columns) {
 943                                         if (col.Name == columnName) {
 944                                                 columnIndex = col.Index;
 945                                                 break;
 946                                         }
 947                                 }
 948                                 return this[columnIndex, rowIndex];
 949                         }
 950                         set {
 951                                 int columnIndex = -1;
 952                                 foreach (DataGridViewColumn col in columns) {
 953                                         if (col.Name == columnName) {
 954                                                 columnIndex = col.Index;
 955                                                 break;
 956                                         }
 957                                 }
 958                                 this[columnIndex, rowIndex] = value;
 959                         }
 960                 }
 961
 962                 [DefaultValue (true)]
 963                 public bool MultiSelect {
 964                         get { return multiSelect; }
 965                         set {
 966                                 if (multiSelect != value) {
 967                                         multiSelect = value;
 968                                         OnMultiSelectChanged(EventArgs.Empty);
 969                                 }
 970                         }
 971                 }
 972
 973                 [Browsable (false)]
 974                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 975                 public int NewRowIndex {
 976                         get {
 977                                 if (!AllowUserToAddRows || ColumnCount == 0) {
 978                                         return -1;
 979                                 }
 980                                 return rows.Count - 1;
 981                         }
 982                 }
 983
 984                 [Browsable (false)]
 985                 [EditorBrowsable (EditorBrowsableState.Never)]
 986                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 987                 public new Padding Padding {
 988                         get { return Padding.Empty; }
 989                         set { }
 990                 }
 991
 992                 internal DataGridViewHeaderCell PressedHeaderCell {
 993                         get { return pressed_header_cell; }
 994                 }
 995
 996                 [Browsable (true)]
 997                 [DefaultValue (false)]
 998                 public bool ReadOnly {
 999                         get { return readOnly; }
1000                         set {
1001                                 if (readOnly != value) {
1002                                         readOnly = value;
1003                                         OnReadOnlyChanged(EventArgs.Empty);
1004                                 }
1005                         }
1006                 }
1007
1008                 [Browsable (false)]
1009                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1010                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
1011                 [DefaultValue (0)]
1012                 public int RowCount {
1013                         get { return rows.Count; }
1014                         set {
1015                                 if (value < 0) {
1016                                         throw new ArgumentException("RowCount must be >= 0.");
1017                                 }
1018                                 if (value < 1 && AllowUserToAddRows) {
1019                                         throw new ArgumentException("RowCount must be >= 1 if AllowUserToAddRows is true.");
1020                                 }
1021                                 if (dataSource != null) {
1022                                         throw new InvalidOperationException("Cant change row count if DataSource is set.");
1023                                 }
1024
1025                                 if (value < rows.Count) {
1026                                         int removeRangeEndIndex = rows.Count - 1;
1027                                         if (AllowUserToAddRows)
1028                                                 removeRangeEndIndex--; // do not remove editing row
1029
1030                                         int removeRangeStartIndex = value - 1;
1031                                         if (AllowUserToAddRows)
1032                                                 removeRangeStartIndex--; // remove an extra row before/instead of the editing row
1033
1034                                         for (int i = removeRangeEndIndex; i > removeRangeStartIndex; i--)
1035                                                 rows.RemoveAt(i);
1036                                 } else if (value > rows.Count) {
1037                                         // If we need to add rows and don't have any columns,
1038                                         // we create one column
1039                                         if (ColumnCount == 0) {
1040                                                 System.Diagnostics.Debug.Assert (rows.Count == 0);
1041                                                 ColumnCount = 1; // this creates the edit row
1042                                                 if (VirtualMode) {
1043                                                         // update edit row height
1044                                                         UpdateRowHeightInfo (0, false);
1045                                                 }
1046                                         }
1047
1048                                         List<DataGridViewRow> newRows = new List<DataGridViewRow> (value - rows.Count);
1049                                         for (int i = rows.Count; i < value; i++)
1050                                                 newRows.Add ((DataGridViewRow) RowTemplateFull);
1051                                         rows.AddRange (newRows.ToArray());
1052                                 }
1053                         }
1054                 }
1055
1056                 [Browsable (true)]
1057                 [DefaultValue (DataGridViewHeaderBorderStyle.Raised)]
1058                 public DataGridViewHeaderBorderStyle RowHeadersBorderStyle {
1059                         get { return rowHeadersBorderStyle; }
1060                         set {
1061                                 if (rowHeadersBorderStyle != value) {
1062                                         rowHeadersBorderStyle = value;
1063                                         OnRowHeadersBorderStyleChanged(EventArgs.Empty);
1064                                 }
1065                         }
1066                 }
1067
1068                 [AmbientValue (null)]
1069                 public DataGridViewCellStyle RowHeadersDefaultCellStyle {
1070                         get { return rowHeadersDefaultCellStyle; }
1071                         set {
1072                                 if (rowHeadersDefaultCellStyle != value) {
1073                                         rowHeadersDefaultCellStyle = value;
1074                                         OnRowHeadersDefaultCellStyleChanged(EventArgs.Empty);
1075                                 }
1076                         }
1077                 }
1078
1079                 [DefaultValue (true)]
1080                 public bool RowHeadersVisible {
1081                         get { return rowHeadersVisible; }
1082                         set {
1083                                 if (rowHeadersVisible != value) {
1084                                         rowHeadersVisible = value;
1085                                         Invalidate ();
1086                                 }
1087                         }
1088                 }
1089
1090                 [Localizable (true)]
1091                 public int RowHeadersWidth {
1092                         get { return rowHeadersWidth; }
1093                         set {
1094                                 if (rowHeadersWidth != value) {
1095                                         if (value < 4) {
1096                                                 throw new ArgumentOutOfRangeException("RowHeadersWidth",
1097                                                         "Row headers width cant be less than 4.");
1098                                         }
1099                                         if (value > 32768 ) {
1100                                                 throw new ArgumentOutOfRangeException("RowHeadersWidth",
1101                                                         "Row headers width cannot be more than 32768.");
1102                                         }
1103                                         rowHeadersWidth = value;
1104                                         OnRowHeadersWidthChanged(EventArgs.Empty);
1105
1106                                         if (rowHeadersVisible)
1107                                                 Invalidate ();
1108                                 }
1109                         }
1110                 }
1111
1112                 [RefreshProperties (RefreshProperties.All)]
1113                 [DefaultValue (DataGridViewRowHeadersWidthSizeMode.EnableResizing)]
1114                 public DataGridViewRowHeadersWidthSizeMode RowHeadersWidthSizeMode {
1115                         get { return rowHeadersWidthSizeMode; }
1116                         set {
1117                                 if (rowHeadersWidthSizeMode != value) {
1118                                         if (!Enum.IsDefined(typeof(DataGridViewRowHeadersWidthSizeMode), value)) {
1119                                                 throw new InvalidEnumArgumentException("Value is not valid DataGridViewRowHeadersWidthSizeMode.");
1120                                         }
1121                                         rowHeadersWidthSizeMode = value;
1122                                         OnRowHeadersWidthSizeModeChanged(new DataGridViewAutoSizeModeEventArgs(false));
1123                                 }
1124                         }
1125                 }
1126
1127                 [Browsable (false)]
1128                 public DataGridViewRowCollection Rows {
1129                         get { return rows; }
1130                 }
1131
1132                 public DataGridViewCellStyle RowsDefaultCellStyle {
1133                         get { return rowsDefaultCellStyle; }
1134                         set {
1135                                 if (rowsDefaultCellStyle != value) {
1136                                         rowsDefaultCellStyle = value;
1137                                         OnRowsDefaultCellStyleChanged(EventArgs.Empty);
1138                                 }
1139                         }
1140                 }
1141
1142                 // RowTemplate is just the row, it does not contain Cells
1143                 [Browsable (true)]
1144                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
1145                 public DataGridViewRow RowTemplate {
1146                         get {
1147                                 if (rowTemplate == null)
1148                                         rowTemplate = new DataGridViewRow ();
1149
1150                                 return rowTemplate;
1151                         }
1152                         set {
1153                                 rowTemplate = value;
1154                         }
1155                 }
1156
1157                 // Take the RowTemplate, clone it, and add Cells
1158                 // Note this is not stored, so you don't need to Clone it
1159                 internal DataGridViewRow RowTemplateFull {
1160                         get {
1161                                 DataGridViewRow row = (DataGridViewRow) RowTemplate.Clone ();
1162
1163                                 for (int i = row.Cells.Count; i < Columns.Count; i++) {
1164                                         DataGridViewCell template = columns [i].CellTemplate;
1165
1166                                         if (template == null)
1167                                                 throw new InvalidOperationException ("At least one of the DataGridView control's columns has no cell template.");
1168
1169                                         row.Cells.Add ((DataGridViewCell) template.Clone ());
1170                                 }
1171
1172                                 return row;
1173                         }
1174                 }
1175
1176                 internal override bool ScaleChildrenInternal {
1177                         get { return false; }
1178                 }
1179
1180                 [DefaultValue (ScrollBars.Both)]
1181                 [Localizable (true)]
1182                 public ScrollBars ScrollBars {
1183                         get { return scrollBars; }
1184                         set {
1185                                 if (!Enum.IsDefined(typeof(ScrollBars), value)) {
1186                                         throw new InvalidEnumArgumentException("Invalid ScrollBars value.");
1187                                 }
1188                                 ////////////////////////////////////////////////////////////
1189                                 /// *** InvalidOperationException ***
1190                                 /// The System.Windows.Forms.DataGridView is unable to
1191                                 /// scroll due to a cell change that cannot be committed
1192                                 /// or canceled.
1193                                 ///////////////////////////////////////////////////////////
1194                                 scrollBars = value;
1195                                 PerformLayout ();
1196                                 Invalidate ();
1197                         }
1198                 }
1199
1200                 [Browsable (false)]
1201                 public DataGridViewSelectedCellCollection SelectedCells {
1202                         get {
1203                                 DataGridViewSelectedCellCollection selectedCells = new DataGridViewSelectedCellCollection();
1204                                 foreach (DataGridViewRow row in rows) {
1205                                         foreach (DataGridViewCell cell in row.Cells) {
1206                                                 if (cell.Selected) {
1207                                                         selectedCells.InternalAdd(cell);
1208                                                 }
1209                                         }
1210                                 }
1211                                 return selectedCells;
1212                         }
1213                 }
1214
1215                 [Browsable (false)]
1216                 public DataGridViewSelectedColumnCollection SelectedColumns {
1217                         get
1218                         {
1219                                 DataGridViewSelectedColumnCollection result = new DataGridViewSelectedColumnCollection ();
1220
1221                                 if (selectionMode != DataGridViewSelectionMode.FullColumnSelect && selectionMode != DataGridViewSelectionMode.ColumnHeaderSelect)
1222                                         return result;
1223
1224                                 result.InternalAddRange (selected_columns);
1225
1226                                 return result;
1227                         }
1228                 }
1229
1230                 [Browsable (false)]
1231                 public DataGridViewSelectedRowCollection SelectedRows {
1232                         get {
1233                                 DataGridViewSelectedRowCollection result = new DataGridViewSelectedRowCollection (this);
1234
1235                                 if (selectionMode != DataGridViewSelectionMode.FullRowSelect && selectionMode != DataGridViewSelectionMode.RowHeaderSelect)
1236                                         return result;
1237
1238                                 result.InternalAddRange (selected_rows);
1239
1240                                 return result;
1241                         }
1242                 }
1243
1244                 [Browsable (true)]
1245                 [DefaultValue (DataGridViewSelectionMode.RowHeaderSelect)]
1246                 public DataGridViewSelectionMode SelectionMode {
1247                         get { return selectionMode; }
1248                         set {
1249                                 if (!Enum.IsDefined (typeof(DataGridViewSelectionMode), value))
1250                                         throw new InvalidEnumArgumentException ("Value is not valid DataGridViewSelectionMode.");
1251
1252                                 if (value == DataGridViewSelectionMode.ColumnHeaderSelect || value == DataGridViewSelectionMode.FullColumnSelect)
1253                                         foreach (DataGridViewColumn col in Columns)
1254                                                 if (col.SortMode == DataGridViewColumnSortMode.Automatic)
1255                                                         throw new InvalidOperationException (string.Format ("Cannot set SelectionMode to {0} because there are Automatic sort columns.", value));
1256
1257                                 selectionMode = value;
1258                         }
1259                 }
1260
1261                 [DefaultValue (true)]
1262                 public bool ShowCellErrors {
1263                         get { return showCellErrors; }
1264                         set { showCellErrors = value; }
1265                 }
1266
1267                 [DefaultValue (true)]
1268                 public bool ShowCellToolTips {
1269                         get { return showCellToolTips; }
1270                         set { showCellToolTips = value; }
1271                 }
1272
1273                 [DefaultValue (true)]
1274                 public bool ShowEditingIcon {
1275                         get { return showEditingIcon; }
1276                         set { showEditingIcon = value; }
1277                 }
1278
1279                 [DefaultValue (true)]
1280                 public bool ShowRowErrors {
1281                         get { return showRowErrors; }
1282                         set { showRowErrors = value; }
1283                 }
1284
1285                 [Browsable (false)]
1286                 public DataGridViewColumn SortedColumn {
1287                         get { return sortedColumn; }
1288                 }
1289
1290                 [Browsable (false)]
1291                 public SortOrder SortOrder {
1292                         get { return sortOrder; }
1293                 }
1294
1295                 [DefaultValue (false)]
1296                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1297                 public bool StandardTab {
1298                         get { return standardTab; }
1299                         set { standardTab = value; }
1300                 }
1301
1302                 [Bindable (false)]
1303                 [Browsable (false)]
1304                 [EditorBrowsable (EditorBrowsableState.Never)]
1305                 public override string Text {
1306                         get { return base.Text; }
1307                         set { base.Text = value; }
1308                 }
1309
1310                 [Browsable (false)]
1311                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
1312                 public DataGridViewHeaderCell TopLeftHeaderCell {
1313                         get {
1314                                 if (topLeftHeaderCell == null) {
1315                                         topLeftHeaderCell = new DataGridViewTopLeftHeaderCell ();
1316                                         topLeftHeaderCell.SetDataGridView (this);
1317                                 }
1318                                 return topLeftHeaderCell;
1319                         }
1320                         set {
1321                                 if (topLeftHeaderCell == value)
1322                                         return;
1323
1324                                 if (topLeftHeaderCell != null)
1325                                         topLeftHeaderCell.SetDataGridView (null);
1326
1327                                 topLeftHeaderCell = value;
1328
1329                                 if (topLeftHeaderCell != null)
1330                                         topLeftHeaderCell.SetDataGridView (this);
1331                         }
1332                 }
1333
1334                 [Browsable (false)]
1335                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1336                 public Cursor UserSetCursor {
1337                         get { return userSetCursor; }
1338                 }
1339
1340                 [Browsable (false)]
1341                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
1342                 public int VerticalScrollingOffset {
1343                         get { return verticalScrollingOffset; }
1344                 }
1345
1346                 [MonoTODO ("VirtualMode is not supported.")]
1347                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1348                 [DefaultValue (false)]
1349                 public bool VirtualMode {
1350                         get { return virtualMode; }
1351                         set { virtualMode = value; }
1352                 }
1353
1354                 internal Control EditingControlInternal {
1355                         get {
1356                                 return editingControl;
1357                         }
1358                         set {
1359                                 if (value == editingControl)
1360                                         return;
1361
1362                                 if (editingControl != null) {
1363                                         // Can't use Controls.Remove (editingControls), because that method
1364                                         // is overriden to not remove the editing control.
1365                                         DataGridView.DataGridViewControlCollection ctrls = Controls as DataGridView.DataGridViewControlCollection;
1366                                         if (ctrls != null) {
1367                                                 ctrls.RemoveInternal (editingControl);
1368                                         } else {
1369                                                 Controls.Remove (editingControl);
1370                                         }
1371                                 }
1372
1373
1374                                 if (value != null) {
1375                                         value.Visible = false;
1376                                         Controls.Add (value);
1377                                 }
1378
1379                                 editingControl = value;
1380                         }
1381                 }
1382
1383                 static object AllowUserToAddRowsChangedEvent = new object ();
1384                 static object AllowUserToDeleteRowsChangedEvent = new object ();
1385                 static object AllowUserToOrderColumnsChangedEvent = new object ();
1386                 static object AllowUserToResizeColumnsChangedEvent = new object ();
1387                 static object AllowUserToResizeRowsChangedEvent = new object ();
1388                 static object AlternatingRowsDefaultCellStyleChangedEvent = new object ();
1389                 static object AutoGenerateColumnsChangedEvent = new object ();
1390                 static object AutoSizeColumnModeChangedEvent = new object ();
1391                 static object AutoSizeColumnsModeChangedEvent = new object ();
1392                 static object AutoSizeRowsModeChangedEvent = new object ();
1393                 static object BackgroundColorChangedEvent = new object ();
1394                 static object BorderStyleChangedEvent = new object ();
1395                 static object CancelRowEditEvent = new object ();
1396                 static object CellBeginEditEvent = new object ();
1397                 static object CellBorderStyleChangedEvent = new object ();
1398                 static object CellClickEvent = new object ();
1399                 static object CellContentClickEvent = new object ();
1400                 static object CellContentDoubleClickEvent = new object ();
1401                 static object CellContextMenuStripChangedEvent = new object ();
1402                 static object CellContextMenuStripNeededEvent = new object ();
1403                 static object CellDoubleClickEvent = new object ();
1404                 static object CellEndEditEvent = new object ();
1405                 static object CellEnterEvent = new object ();
1406                 static object CellErrorTextChangedEvent = new object ();
1407                 static object CellErrorTextNeededEvent = new object ();
1408                 static object CellFormattingEvent = new object ();
1409                 static object CellLeaveEvent = new object ();
1410                 static object CellMouseClickEvent = new object ();
1411                 static object CellMouseDoubleClickEvent = new object ();
1412                 static object CellMouseDownEvent = new object ();
1413                 static object CellMouseEnterEvent = new object ();
1414                 static object CellMouseLeaveEvent = new object ();
1415                 static object CellMouseMoveEvent = new object ();
1416                 static object CellMouseUpEvent = new object ();
1417                 static object CellPaintingEvent = new object ();
1418                 static object CellParsingEvent = new object ();
1419                 static object CellStateChangedEvent = new object ();
1420                 static object CellStyleChangedEvent = new object ();
1421                 static object CellStyleContentChangedEvent = new object ();
1422                 static object CellToolTipTextChangedEvent = new object ();
1423                 static object CellToolTipTextNeededEvent = new object ();
1424                 static object CellValidatedEvent = new object ();
1425                 static object CellValidatingEvent = new object ();
1426                 static object CellValueChangedEvent = new object ();
1427                 static object CellValueNeededEvent = new object ();
1428                 static object CellValuePushedEvent = new object ();
1429                 static object ColumnAddedEvent = new object ();
1430                 static object ColumnContextMenuStripChangedEvent = new object ();
1431                 static object ColumnDataPropertyNameChangedEvent = new object ();
1432                 static object ColumnDefaultCellStyleChangedEvent = new object ();
1433                 static object ColumnDisplayIndexChangedEvent = new object ();
1434                 static object ColumnDividerDoubleClickEvent = new object ();
1435                 static object ColumnDividerWidthChangedEvent = new object ();
1436                 static object ColumnHeaderCellChangedEvent = new object ();
1437                 static object ColumnHeaderMouseClickEvent = new object ();
1438                 static object ColumnHeaderMouseDoubleClickEvent = new object ();
1439                 static object ColumnHeadersBorderStyleChangedEvent = new object ();
1440                 static object ColumnHeadersDefaultCellStyleChangedEvent = new object ();
1441                 static object ColumnHeadersHeightChangedEvent = new object ();
1442                 static object ColumnHeadersHeightSizeModeChangedEvent = new object ();
1443                 static object ColumnMinimumWidthChangedEvent = new object ();
1444                 static object ColumnNameChangedEvent = new object ();
1445                 static object ColumnRemovedEvent = new object ();
1446                 static object ColumnSortModeChangedEvent = new object ();
1447                 static object ColumnStateChangedEvent = new object ();
1448                 static object ColumnToolTipTextChangedEvent = new object ();
1449                 static object ColumnWidthChangedEvent = new object ();
1450                 static object CurrentCellChangedEvent = new object ();
1451                 static object CurrentCellDirtyStateChangedEvent = new object ();
1452                 static object DataBindingCompleteEvent = new object ();
1453                 static object DataErrorEvent = new object ();
1454                 static object DataMemberChangedEvent = new object ();
1455                 static object DataSourceChangedEvent = new object ();
1456                 static object DefaultCellStyleChangedEvent = new object ();
1457                 static object DefaultValuesNeededEvent = new object ();
1458                 static object EditingControlShowingEvent = new object ();
1459                 static object EditModeChangedEvent = new object ();
1460                 static object GridColorChangedEvent = new object ();
1461                 static object MultiSelectChangedEvent = new object ();
1462                 static object NewRowNeededEvent = new object ();
1463                 static object ReadOnlyChangedEvent = new object ();
1464                 static object RowContextMenuStripChangedEvent = new object ();
1465                 static object RowContextMenuStripNeededEvent = new object ();
1466                 static object RowDefaultCellStyleChangedEvent = new object ();
1467                 static object RowDirtyStateNeededEvent = new object ();
1468                 static object RowDividerDoubleClickEvent = new object ();
1469                 static object RowDividerHeightChangedEvent = new object ();
1470                 static object RowEnterEvent = new object ();
1471                 static object RowErrorTextChangedEvent = new object ();
1472                 static object RowErrorTextNeededEvent = new object ();
1473                 static object RowHeaderCellChangedEvent = new object ();
1474                 static object RowHeaderMouseClickEvent = new object ();
1475                 static object RowHeaderMouseDoubleClickEvent = new object ();
1476                 static object RowHeadersBorderStyleChangedEvent = new object ();
1477                 static object RowHeadersDefaultCellStyleChangedEvent = new object ();
1478                 static object RowHeadersWidthChangedEvent = new object ();
1479                 static object RowHeadersWidthSizeModeChangedEvent = new object ();
1480                 static object RowHeightChangedEvent = new object ();
1481                 static object RowHeightInfoNeededEvent = new object ();
1482                 static object RowHeightInfoPushedEvent = new object ();
1483                 static object RowLeaveEvent = new object ();
1484                 static object RowMinimumHeightChangedEvent = new object ();
1485                 static object RowPostPaintEvent = new object ();
1486                 static object RowPrePaintEvent = new object ();
1487                 static object RowsAddedEvent = new object ();
1488                 static object RowsDefaultCellStyleChangedEvent = new object ();
1489                 static object RowsRemovedEvent = new object ();
1490                 static object RowStateChangedEvent = new object ();
1491                 static object RowUnsharedEvent = new object ();
1492                 static object RowValidatedEvent = new object ();
1493                 static object RowValidatingEvent = new object ();
1494                 static object ScrollEvent = new object ();
1495                 static object SelectionChangedEvent = new object ();
1496                 static object SortCompareEvent = new object ();
1497                 static object SortedEvent = new object ();
1498                 static object UserAddedRowEvent = new object ();
1499                 static object UserDeletedRowEvent = new object ();
1500                 static object UserDeletingRowEvent = new object ();
1501
1502
1503                 //
1504
1505                 public event EventHandler AllowUserToAddRowsChanged {
1506                         add { Events.AddHandler (AllowUserToAddRowsChangedEvent, value); }
1507                         remove { Events.RemoveHandler (AllowUserToAddRowsChangedEvent, value); }
1508                 }
1509
1510                 public event EventHandler AllowUserToDeleteRowsChanged {
1511                         add { Events.AddHandler (AllowUserToDeleteRowsChangedEvent, value); }
1512                         remove { Events.RemoveHandler (AllowUserToDeleteRowsChangedEvent, value); }
1513                 }
1514
1515                 public event EventHandler AllowUserToOrderColumnsChanged {
1516                         add { Events.AddHandler (AllowUserToOrderColumnsChangedEvent, value); }
1517                         remove { Events.RemoveHandler (AllowUserToOrderColumnsChangedEvent, value); }
1518                 }
1519
1520                 public event EventHandler AllowUserToResizeColumnsChanged {
1521                         add { Events.AddHandler (AllowUserToResizeColumnsChangedEvent, value); }
1522                         remove { Events.RemoveHandler (AllowUserToResizeColumnsChangedEvent, value); }
1523                 }
1524
1525                 public event EventHandler AllowUserToResizeRowsChanged {
1526                         add { Events.AddHandler (AllowUserToResizeRowsChangedEvent, value); }
1527                         remove { Events.RemoveHandler (AllowUserToResizeRowsChangedEvent, value); }
1528                 }
1529
1530                 public event EventHandler AlternatingRowsDefaultCellStyleChanged {
1531                         add { Events.AddHandler (AlternatingRowsDefaultCellStyleChangedEvent, value); }
1532                         remove { Events.RemoveHandler (AlternatingRowsDefaultCellStyleChangedEvent, value); }
1533                 }
1534
1535                 [Browsable (false)]
1536                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1537                 public event EventHandler AutoGenerateColumnsChanged {
1538                         add { Events.AddHandler (AutoGenerateColumnsChangedEvent, value); }
1539                         remove { Events.RemoveHandler (AutoGenerateColumnsChangedEvent, value); }
1540                 }
1541
1542                 public event DataGridViewAutoSizeColumnModeEventHandler AutoSizeColumnModeChanged {
1543                         add { Events.AddHandler (AutoSizeColumnModeChangedEvent, value); }
1544                         remove { Events.RemoveHandler (AutoSizeColumnModeChangedEvent, value); }
1545                 }
1546
1547                 public event DataGridViewAutoSizeColumnsModeEventHandler AutoSizeColumnsModeChanged {
1548                         add { Events.AddHandler (AutoSizeColumnsModeChangedEvent, value); }
1549                         remove { Events.RemoveHandler (AutoSizeColumnsModeChangedEvent, value); }
1550                 }
1551
1552                 public event DataGridViewAutoSizeModeEventHandler AutoSizeRowsModeChanged {
1553                         add { Events.AddHandler (AutoSizeRowsModeChangedEvent, value); }
1554                         remove { Events.RemoveHandler (AutoSizeRowsModeChangedEvent, value); }
1555                 }
1556
1557                 [Browsable (false)]
1558                 [EditorBrowsable (EditorBrowsableState.Never)]
1559                 public new event EventHandler BackColorChanged {
1560                         add { base.BackColorChanged += value; }
1561                         remove { base.BackColorChanged -= value; }
1562                 }
1563
1564                 public event EventHandler BackgroundColorChanged {
1565                         add { Events.AddHandler (BackgroundColorChangedEvent, value); }
1566                         remove { Events.RemoveHandler (BackgroundColorChangedEvent, value); }
1567                 }
1568
1569                 [Browsable (false)]
1570                 [EditorBrowsable (EditorBrowsableState.Never)]
1571                 public new event EventHandler BackgroundImageChanged {
1572                         add { base.BackgroundImageChanged += value; }
1573                         remove { base.BackgroundImageChanged -= value; }
1574                 }
1575
1576                 [Browsable (false)]
1577                 [EditorBrowsable (EditorBrowsableState.Never)]
1578                 public new event EventHandler BackgroundImageLayoutChanged  {
1579                         add { base.BackgroundImageLayoutChanged += value; }
1580                         remove { base.BackgroundImageLayoutChanged -= value; }
1581                 }
1582
1583                 public event EventHandler BorderStyleChanged {
1584                         add { Events.AddHandler (BorderStyleChangedEvent, value); }
1585                         remove { Events.RemoveHandler (BorderStyleChangedEvent, value); }
1586                 }
1587
1588                 public event QuestionEventHandler CancelRowEdit {
1589                         add { Events.AddHandler (CancelRowEditEvent, value); }
1590                         remove { Events.RemoveHandler (CancelRowEditEvent, value); }
1591                 }
1592
1593                 public event DataGridViewCellCancelEventHandler CellBeginEdit {
1594                         add { Events.AddHandler (CellBeginEditEvent, value); }
1595                         remove { Events.RemoveHandler (CellBeginEditEvent, value); }
1596                 }
1597
1598                 public event EventHandler CellBorderStyleChanged {
1599                         add { Events.AddHandler (CellBorderStyleChangedEvent, value); }
1600                         remove { Events.RemoveHandler (CellBorderStyleChangedEvent, value); }
1601                 }
1602
1603                 public event DataGridViewCellEventHandler CellClick {
1604                         add { Events.AddHandler (CellClickEvent, value); }
1605                         remove { Events.RemoveHandler (CellClickEvent, value); }
1606                 }
1607
1608                 public event DataGridViewCellEventHandler CellContentClick {
1609                         add { Events.AddHandler (CellContentClickEvent, value); }
1610                         remove { Events.RemoveHandler (CellContentClickEvent, value); }
1611                 }
1612
1613                 public event DataGridViewCellEventHandler CellContentDoubleClick {
1614                         add { Events.AddHandler (CellContentDoubleClickEvent, value); }
1615                         remove { Events.RemoveHandler (CellContentDoubleClickEvent, value); }
1616                 }
1617
1618                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1619                 public event DataGridViewCellEventHandler CellContextMenuStripChanged {
1620                         add { Events.AddHandler (CellContextMenuStripChangedEvent, value); }
1621                         remove { Events.RemoveHandler (CellContextMenuStripChangedEvent, value); }
1622                 }
1623
1624                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1625                 public event DataGridViewCellContextMenuStripNeededEventHandler CellContextMenuStripNeeded {
1626                         add { Events.AddHandler (CellContextMenuStripNeededEvent, value); }
1627                         remove { Events.RemoveHandler (CellContextMenuStripNeededEvent, value); }
1628                 }
1629
1630                 public event DataGridViewCellEventHandler CellDoubleClick {
1631                         add { Events.AddHandler (CellDoubleClickEvent, value); }
1632                         remove { Events.RemoveHandler (CellDoubleClickEvent, value); }
1633                 }
1634
1635                 public event DataGridViewCellEventHandler CellEndEdit {
1636                         add { Events.AddHandler (CellEndEditEvent, value); }
1637                         remove { Events.RemoveHandler (CellEndEditEvent, value); }
1638                 }
1639
1640                 public event DataGridViewCellEventHandler CellEnter {
1641                         add { Events.AddHandler (CellEnterEvent, value); }
1642                         remove { Events.RemoveHandler (CellEnterEvent, value); }
1643                 }
1644
1645                 public event DataGridViewCellEventHandler CellErrorTextChanged {
1646                         add { Events.AddHandler (CellErrorTextChangedEvent, value); }
1647                         remove { Events.RemoveHandler (CellErrorTextChangedEvent, value); }
1648                 }
1649
1650                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1651                 public event DataGridViewCellErrorTextNeededEventHandler CellErrorTextNeeded {
1652                         add { Events.AddHandler (CellErrorTextNeededEvent, value); }
1653                         remove { Events.RemoveHandler (CellErrorTextNeededEvent, value); }
1654                 }
1655
1656                 public event DataGridViewCellFormattingEventHandler CellFormatting {
1657                         add { Events.AddHandler (CellFormattingEvent, value); }
1658                         remove { Events.RemoveHandler (CellFormattingEvent, value); }
1659                 }
1660
1661                 public event DataGridViewCellEventHandler CellLeave {
1662                         add { Events.AddHandler (CellLeaveEvent, value); }
1663                         remove { Events.RemoveHandler (CellLeaveEvent, value); }
1664                 }
1665
1666                 public event DataGridViewCellMouseEventHandler CellMouseClick {
1667                         add { Events.AddHandler (CellMouseClickEvent, value); }
1668                         remove { Events.RemoveHandler (CellMouseClickEvent, value); }
1669                 }
1670
1671                 public event DataGridViewCellMouseEventHandler CellMouseDoubleClick {
1672                         add { Events.AddHandler (CellMouseDoubleClickEvent, value); }
1673                         remove { Events.RemoveHandler (CellMouseDoubleClickEvent, value); }
1674                 }
1675
1676                 public event DataGridViewCellMouseEventHandler CellMouseDown {
1677                         add { Events.AddHandler (CellMouseDownEvent, value); }
1678                         remove { Events.RemoveHandler (CellMouseDownEvent, value); }
1679                 }
1680
1681                 public event DataGridViewCellEventHandler CellMouseEnter {
1682                         add { Events.AddHandler (CellMouseEnterEvent, value); }
1683                         remove { Events.RemoveHandler (CellMouseEnterEvent, value); }
1684                 }
1685
1686                 public event DataGridViewCellEventHandler CellMouseLeave {
1687                         add { Events.AddHandler (CellMouseLeaveEvent, value); }
1688                         remove { Events.RemoveHandler (CellMouseLeaveEvent, value); }
1689                 }
1690
1691                 public event DataGridViewCellMouseEventHandler CellMouseMove {
1692                         add { Events.AddHandler (CellMouseMoveEvent, value); }
1693                         remove { Events.RemoveHandler (CellMouseMoveEvent, value); }
1694                 }
1695
1696                 public event DataGridViewCellMouseEventHandler CellMouseUp {
1697                         add { Events.AddHandler (CellMouseUpEvent, value); }
1698                         remove { Events.RemoveHandler (CellMouseUpEvent, value); }
1699                 }
1700
1701                 public event DataGridViewCellPaintingEventHandler CellPainting {
1702                         add { Events.AddHandler (CellPaintingEvent, value); }
1703                         remove { Events.RemoveHandler (CellPaintingEvent, value); }
1704                 }
1705
1706                 public event DataGridViewCellParsingEventHandler CellParsing {
1707                         add { Events.AddHandler (CellParsingEvent, value); }
1708                         remove { Events.RemoveHandler (CellParsingEvent, value); }
1709                 }
1710
1711                 public event DataGridViewCellStateChangedEventHandler CellStateChanged {
1712                         add { Events.AddHandler (CellStateChangedEvent, value); }
1713                         remove { Events.RemoveHandler (CellStateChangedEvent, value); }
1714                 }
1715
1716                 public event DataGridViewCellEventHandler CellStyleChanged {
1717                         add { Events.AddHandler (CellStyleChangedEvent, value); }
1718                         remove { Events.RemoveHandler (CellStyleChangedEvent, value); }
1719                 }
1720
1721                 public event DataGridViewCellStyleContentChangedEventHandler CellStyleContentChanged {
1722                         add { Events.AddHandler (CellStyleContentChangedEvent, value); }
1723                         remove { Events.RemoveHandler (CellStyleContentChangedEvent, value); }
1724                 }
1725
1726                 public event DataGridViewCellEventHandler CellToolTipTextChanged {
1727                         add { Events.AddHandler (CellToolTipTextChangedEvent, value); }
1728                         remove { Events.RemoveHandler (CellToolTipTextChangedEvent, value); }
1729                 }
1730
1731                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1732                 public event DataGridViewCellToolTipTextNeededEventHandler CellToolTipTextNeeded {
1733                         add { Events.AddHandler (CellToolTipTextNeededEvent, value); }
1734                         remove { Events.RemoveHandler (CellToolTipTextNeededEvent, value); }
1735                 }
1736
1737                 public event DataGridViewCellEventHandler CellValidated {
1738                         add { Events.AddHandler (CellValidatedEvent, value); }
1739                         remove { Events.RemoveHandler (CellValidatedEvent, value); }
1740                 }
1741
1742                 public event DataGridViewCellValidatingEventHandler CellValidating {
1743                         add { Events.AddHandler (CellValidatingEvent, value); }
1744                         remove { Events.RemoveHandler (CellValidatingEvent, value); }
1745                 }
1746
1747                 public event DataGridViewCellEventHandler CellValueChanged {
1748                         add { Events.AddHandler (CellValueChangedEvent, value); }
1749                         remove { Events.RemoveHandler (CellValueChangedEvent, value); }
1750                 }
1751
1752                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1753                 public event DataGridViewCellValueEventHandler CellValueNeeded {
1754                         add { Events.AddHandler (CellValueNeededEvent, value); }
1755                         remove { Events.RemoveHandler (CellValueNeededEvent, value); }
1756                 }
1757
1758                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1759                 public event DataGridViewCellValueEventHandler CellValuePushed {
1760                         add { Events.AddHandler (CellValuePushedEvent, value); }
1761                         remove { Events.RemoveHandler (CellValuePushedEvent, value); }
1762                 }
1763
1764                 public event DataGridViewColumnEventHandler ColumnAdded {
1765                         add { Events.AddHandler (ColumnAddedEvent, value); }
1766                         remove { Events.RemoveHandler (ColumnAddedEvent, value); }
1767                 }
1768
1769                 public event DataGridViewColumnEventHandler ColumnContextMenuStripChanged {
1770                         add { Events.AddHandler (ColumnContextMenuStripChangedEvent, value); }
1771                         remove { Events.RemoveHandler (ColumnContextMenuStripChangedEvent, value); }
1772                 }
1773
1774                 public event DataGridViewColumnEventHandler ColumnDataPropertyNameChanged {
1775                         add { Events.AddHandler (ColumnDataPropertyNameChangedEvent, value); }
1776                         remove { Events.RemoveHandler (ColumnDataPropertyNameChangedEvent, value); }
1777                 }
1778
1779                 public event DataGridViewColumnEventHandler ColumnDefaultCellStyleChanged {
1780                         add { Events.AddHandler (ColumnDefaultCellStyleChangedEvent, value); }
1781                         remove { Events.RemoveHandler (ColumnDefaultCellStyleChangedEvent, value); }
1782                 }
1783
1784                 public event DataGridViewColumnEventHandler ColumnDisplayIndexChanged {
1785                         add { Events.AddHandler (ColumnDisplayIndexChangedEvent, value); }
1786                         remove { Events.RemoveHandler (ColumnDisplayIndexChangedEvent, value); }
1787                 }
1788
1789                 public event DataGridViewColumnDividerDoubleClickEventHandler ColumnDividerDoubleClick {
1790                         add { Events.AddHandler (ColumnDividerDoubleClickEvent, value); }
1791                         remove { Events.RemoveHandler (ColumnDividerDoubleClickEvent, value); }
1792                 }
1793
1794                 public event DataGridViewColumnEventHandler ColumnDividerWidthChanged {
1795                         add { Events.AddHandler (ColumnDividerWidthChangedEvent, value); }
1796                         remove { Events.RemoveHandler (ColumnDividerWidthChangedEvent, value); }
1797                 }
1798
1799                 public event DataGridViewColumnEventHandler ColumnHeaderCellChanged {
1800                         add { Events.AddHandler (ColumnHeaderCellChangedEvent, value); }
1801                         remove { Events.RemoveHandler (ColumnHeaderCellChangedEvent, value); }
1802                 }
1803
1804                 public event DataGridViewCellMouseEventHandler ColumnHeaderMouseClick {
1805                         add { Events.AddHandler (ColumnHeaderMouseClickEvent, value); }
1806                         remove { Events.RemoveHandler (ColumnHeaderMouseClickEvent, value); }
1807                 }
1808
1809                 public event DataGridViewCellMouseEventHandler ColumnHeaderMouseDoubleClick {
1810                         add { Events.AddHandler (ColumnHeaderMouseDoubleClickEvent, value); }
1811                         remove { Events.RemoveHandler (ColumnHeaderMouseDoubleClickEvent, value); }
1812                 }
1813
1814                 public event EventHandler ColumnHeadersBorderStyleChanged {
1815                         add { Events.AddHandler (ColumnHeadersBorderStyleChangedEvent, value); }
1816                         remove { Events.RemoveHandler (ColumnHeadersBorderStyleChangedEvent, value); }
1817                 }
1818
1819                 public event EventHandler ColumnHeadersDefaultCellStyleChanged {
1820                         add { Events.AddHandler (ColumnHeadersDefaultCellStyleChangedEvent, value); }
1821                         remove { Events.RemoveHandler (ColumnHeadersDefaultCellStyleChangedEvent, value); }
1822                 }
1823
1824                 public event EventHandler ColumnHeadersHeightChanged {
1825                         add { Events.AddHandler (ColumnHeadersHeightChangedEvent, value); }
1826                         remove { Events.RemoveHandler (ColumnHeadersHeightChangedEvent, value); }
1827                 }
1828
1829                 public event DataGridViewAutoSizeModeEventHandler ColumnHeadersHeightSizeModeChanged {
1830                         add { Events.AddHandler (ColumnHeadersHeightSizeModeChangedEvent, value); }
1831                         remove { Events.RemoveHandler (ColumnHeadersHeightSizeModeChangedEvent, value); }
1832                 }
1833
1834                 public event DataGridViewColumnEventHandler ColumnMinimumWidthChanged {
1835                         add { Events.AddHandler (ColumnMinimumWidthChangedEvent, value); }
1836                         remove { Events.RemoveHandler (ColumnMinimumWidthChangedEvent, value); }
1837                 }
1838
1839                 public event DataGridViewColumnEventHandler ColumnNameChanged {
1840                         add { Events.AddHandler (ColumnNameChangedEvent, value); }
1841                         remove { Events.RemoveHandler (ColumnNameChangedEvent, value); }
1842                 }
1843
1844                 public event DataGridViewColumnEventHandler ColumnRemoved {
1845                         add { Events.AddHandler (ColumnRemovedEvent, value); }
1846                         remove { Events.RemoveHandler (ColumnRemovedEvent, value); }
1847                 }
1848
1849                 public event DataGridViewColumnEventHandler ColumnSortModeChanged {
1850                         add { Events.AddHandler (ColumnSortModeChangedEvent, value); }
1851                         remove { Events.RemoveHandler (ColumnSortModeChangedEvent, value); }
1852                 }
1853
1854                 public event DataGridViewColumnStateChangedEventHandler ColumnStateChanged {
1855                         add { Events.AddHandler (ColumnStateChangedEvent, value); }
1856                         remove { Events.RemoveHandler (ColumnStateChangedEvent, value); }
1857                 }
1858
1859                 public event DataGridViewColumnEventHandler ColumnToolTipTextChanged {
1860                         add { Events.AddHandler (ColumnToolTipTextChangedEvent, value); }
1861                         remove { Events.RemoveHandler (ColumnToolTipTextChangedEvent, value); }
1862                 }
1863
1864                 public event DataGridViewColumnEventHandler ColumnWidthChanged {
1865                         add { Events.AddHandler (ColumnWidthChangedEvent, value); }
1866                         remove { Events.RemoveHandler (ColumnWidthChangedEvent, value); }
1867                 }
1868
1869                 public event EventHandler CurrentCellChanged {
1870                         add { Events.AddHandler (CurrentCellChangedEvent, value); }
1871                         remove { Events.RemoveHandler (CurrentCellChangedEvent, value); }
1872                 }
1873
1874                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1875                 public event EventHandler CurrentCellDirtyStateChanged {
1876                         add { Events.AddHandler (CurrentCellDirtyStateChangedEvent, value); }
1877                         remove { Events.RemoveHandler (CurrentCellDirtyStateChangedEvent, value); }
1878                 }
1879
1880                 public event DataGridViewBindingCompleteEventHandler DataBindingComplete {
1881                         add { Events.AddHandler (DataBindingCompleteEvent, value); }
1882                         remove { Events.RemoveHandler (DataBindingCompleteEvent, value); }
1883                 }
1884
1885                 public event DataGridViewDataErrorEventHandler DataError {
1886                         add { Events.AddHandler (DataErrorEvent, value); }
1887                         remove { Events.RemoveHandler (DataErrorEvent, value); }
1888                 }
1889
1890                 public event EventHandler DataMemberChanged {
1891                         add { Events.AddHandler (DataMemberChangedEvent, value); }
1892                         remove { Events.RemoveHandler (DataMemberChangedEvent, value); }
1893                 }
1894
1895                 public event EventHandler DataSourceChanged {
1896                         add { Events.AddHandler (DataSourceChangedEvent, value); }
1897                         remove { Events.RemoveHandler (DataSourceChangedEvent, value); }
1898                 }
1899
1900                 public event EventHandler DefaultCellStyleChanged {
1901                         add { Events.AddHandler (DefaultCellStyleChangedEvent, value); }
1902                         remove { Events.RemoveHandler (DefaultCellStyleChangedEvent, value); }
1903                 }
1904
1905                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1906                 public event DataGridViewRowEventHandler DefaultValuesNeeded {
1907                         add { Events.AddHandler (DefaultValuesNeededEvent, value); }
1908                         remove { Events.RemoveHandler (DefaultValuesNeededEvent, value); }
1909                 }
1910
1911                 public event DataGridViewEditingControlShowingEventHandler EditingControlShowing {
1912                         add { Events.AddHandler (EditingControlShowingEvent, value); }
1913                         remove { Events.RemoveHandler (EditingControlShowingEvent, value); }
1914                 }
1915
1916                 public event EventHandler EditModeChanged {
1917                         add { Events.AddHandler (EditModeChangedEvent, value); }
1918                         remove { Events.RemoveHandler (EditModeChangedEvent, value); }
1919                 }
1920
1921                 [Browsable (false)]
1922                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1923                 public new event EventHandler FontChanged {
1924                         add { base.FontChanged += value; }
1925                         remove { base.FontChanged -= value; }
1926                 }
1927
1928                 [Browsable (false)]
1929                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1930                 public new event EventHandler ForeColorChanged {
1931                         add { base.ForeColorChanged += value; }
1932                         remove { base.ForeColorChanged -= value; }
1933                 }
1934
1935                 [Browsable (false)]
1936                 [EditorBrowsable (EditorBrowsableState.Never)]
1937                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
1938                 public new event EventHandler PaddingChanged {
1939                         add { base.PaddingChanged += value; }
1940                         remove { base.PaddingChanged -= value; }
1941                 }
1942
1943                 public event EventHandler GridColorChanged {
1944                         add { Events.AddHandler (GridColorChangedEvent, value); }
1945                         remove { Events.RemoveHandler (GridColorChangedEvent, value); }
1946                 }
1947
1948                 public event EventHandler MultiSelectChanged {
1949                         add { Events.AddHandler (MultiSelectChangedEvent, value); }
1950                         remove { Events.RemoveHandler (MultiSelectChangedEvent, value); }
1951                 }
1952
1953                 public event DataGridViewRowEventHandler NewRowNeeded {
1954                         add { Events.AddHandler (NewRowNeededEvent, value); }
1955                         remove { Events.RemoveHandler (NewRowNeededEvent, value); }
1956                 }
1957
1958                 public event EventHandler ReadOnlyChanged {
1959                         add { Events.AddHandler (ReadOnlyChangedEvent, value); }
1960                         remove { Events.RemoveHandler (ReadOnlyChangedEvent, value); }
1961                 }
1962
1963                 public event DataGridViewRowEventHandler RowContextMenuStripChanged {
1964                         add { Events.AddHandler (RowContextMenuStripChangedEvent, value); }
1965                         remove { Events.RemoveHandler (RowContextMenuStripChangedEvent, value); }
1966                 }
1967
1968                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1969                 public event DataGridViewRowContextMenuStripNeededEventHandler RowContextMenuStripNeeded {
1970                         add { Events.AddHandler (RowContextMenuStripNeededEvent, value); }
1971                         remove { Events.RemoveHandler (RowContextMenuStripNeededEvent, value); }
1972                 }
1973
1974                 public event DataGridViewRowEventHandler RowDefaultCellStyleChanged {
1975                         add { Events.AddHandler (RowDefaultCellStyleChangedEvent, value); }
1976                         remove { Events.RemoveHandler (RowDefaultCellStyleChangedEvent, value); }
1977                 }
1978
1979                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1980                 public event QuestionEventHandler RowDirtyStateNeeded {
1981                         add { Events.AddHandler (RowDirtyStateNeededEvent, value); }
1982                         remove { Events.RemoveHandler (RowDirtyStateNeededEvent, value); }
1983                 }
1984
1985                 public event DataGridViewRowDividerDoubleClickEventHandler RowDividerDoubleClick {
1986                         add { Events.AddHandler (RowDividerDoubleClickEvent, value); }
1987                         remove { Events.RemoveHandler (RowDividerDoubleClickEvent, value); }
1988                 }
1989
1990                 public event DataGridViewRowEventHandler RowDividerHeightChanged {
1991                         add { Events.AddHandler (RowDividerHeightChangedEvent, value); }
1992                         remove { Events.RemoveHandler (RowDividerHeightChangedEvent, value); }
1993                 }
1994
1995                 public event DataGridViewCellEventHandler RowEnter {
1996                         add { Events.AddHandler (RowEnterEvent, value); }
1997                         remove { Events.RemoveHandler (RowEnterEvent, value); }
1998                 }
1999
2000                 public event DataGridViewRowEventHandler RowErrorTextChanged {
2001                         add { Events.AddHandler (RowErrorTextChangedEvent, value); }
2002                         remove { Events.RemoveHandler (RowErrorTextChangedEvent, value); }
2003                 }
2004
2005                 [EditorBrowsable (EditorBrowsableState.Advanced)]
2006                 public event DataGridViewRowErrorTextNeededEventHandler RowErrorTextNeeded {
2007                         add { Events.AddHandler (RowErrorTextNeededEvent, value); }
2008                         remove { Events.RemoveHandler (RowErrorTextNeededEvent, value); }
2009                 }
2010
2011                 public event DataGridViewRowEventHandler RowHeaderCellChanged {
2012                         add { Events.AddHandler (RowHeaderCellChangedEvent, value); }
2013                         remove { Events.RemoveHandler (RowHeaderCellChangedEvent, value); }
2014                 }
2015
2016                 public event DataGridViewCellMouseEventHandler RowHeaderMouseClick {
2017                         add { Events.AddHandler (RowHeaderMouseClickEvent, value); }
2018                         remove { Events.RemoveHandler (RowHeaderMouseClickEvent, value); }
2019                 }
2020
2021                 public event DataGridViewCellMouseEventHandler RowHeaderMouseDoubleClick {
2022                         add { Events.AddHandler (RowHeaderMouseDoubleClickEvent, value); }
2023                         remove { Events.RemoveHandler (RowHeaderMouseDoubleClickEvent, value); }
2024                 }
2025
2026                 public event EventHandler RowHeadersBorderStyleChanged {
2027                         add { Events.AddHandler (RowHeadersBorderStyleChangedEvent, value); }
2028                         remove { Events.RemoveHandler (RowHeadersBorderStyleChangedEvent, value); }
2029                 }
2030
2031                 public event EventHandler RowHeadersDefaultCellStyleChanged {
2032                         add { Events.AddHandler (RowHeadersDefaultCellStyleChangedEvent, value); }
2033                         remove { Events.RemoveHandler (RowHeadersDefaultCellStyleChangedEvent, value); }
2034                 }
2035
2036                 public event EventHandler RowHeadersWidthChanged {
2037                         add { Events.AddHandler (RowHeadersWidthChangedEvent, value); }
2038                         remove { Events.RemoveHandler (RowHeadersWidthChangedEvent, value); }
2039                 }
2040
2041                 public event DataGridViewAutoSizeModeEventHandler RowHeadersWidthSizeModeChanged {
2042                         add { Events.AddHandler (RowHeadersWidthSizeModeChangedEvent, value); }
2043                         remove { Events.RemoveHandler (RowHeadersWidthSizeModeChangedEvent, value); }
2044                 }
2045
2046                 public event DataGridViewRowEventHandler RowHeightChanged {
2047                         add { Events.AddHandler (RowHeightChangedEvent, value); }
2048                         remove { Events.RemoveHandler (RowHeightChangedEvent, value); }
2049                 }
2050
2051                 [EditorBrowsable (EditorBrowsableState.Advanced)]
2052                 public event DataGridViewRowHeightInfoNeededEventHandler RowHeightInfoNeeded {
2053                         add { Events.AddHandler (RowHeightInfoNeededEvent, value); }
2054                         remove { Events.RemoveHandler (RowHeightInfoNeededEvent, value); }
2055                 }
2056
2057                 [EditorBrowsable (EditorBrowsableState.Advanced)]
2058                 public event DataGridViewRowHeightInfoPushedEventHandler RowHeightInfoPushed {
2059                         add { Events.AddHandler (RowHeightInfoPushedEvent, value); }
2060                         remove { Events.RemoveHandler (RowHeightInfoPushedEvent, value); }
2061                 }
2062
2063                 public event DataGridViewCellEventHandler RowLeave {
2064                         add { Events.AddHandler (RowLeaveEvent, value); }
2065                         remove { Events.RemoveHandler (RowLeaveEvent, value); }
2066                 }
2067
2068                 public event DataGridViewRowEventHandler RowMinimumHeightChanged {
2069                         add { Events.AddHandler (RowMinimumHeightChangedEvent, value); }
2070                         remove { Events.RemoveHandler (RowMinimumHeightChangedEvent, value); }
2071                 }
2072
2073                 public event DataGridViewRowPostPaintEventHandler RowPostPaint {
2074                         add { Events.AddHandler (RowPostPaintEvent, value); }
2075                         remove { Events.RemoveHandler (RowPostPaintEvent, value); }
2076                 }
2077
2078                 public event DataGridViewRowPrePaintEventHandler RowPrePaint {
2079                         add { Events.AddHandler (RowPrePaintEvent, value); }
2080                         remove { Events.RemoveHandler (RowPrePaintEvent, value); }
2081                 }
2082
2083                 public event DataGridViewRowsAddedEventHandler RowsAdded {
2084                         add { Events.AddHandler (RowsAddedEvent, value); }
2085                         remove { Events.RemoveHandler (RowsAddedEvent, value); }
2086                 }
2087
2088                 public event EventHandler RowsDefaultCellStyleChanged {
2089                         add { Events.AddHandler (RowsDefaultCellStyleChangedEvent, value); }
2090                         remove { Events.RemoveHandler (RowsDefaultCellStyleChangedEvent, value); }
2091                 }
2092
2093                 public event DataGridViewRowsRemovedEventHandler RowsRemoved {
2094                         add { Events.AddHandler (RowsRemovedEvent, value); }
2095                         remove { Events.RemoveHandler (RowsRemovedEvent, value); }
2096                 }
2097
2098                 public event DataGridViewRowStateChangedEventHandler RowStateChanged {
2099                         add { Events.AddHandler (RowStateChangedEvent, value); }
2100                         remove { Events.RemoveHandler (RowStateChangedEvent, value); }
2101                 }
2102
2103                 [EditorBrowsable (EditorBrowsableState.Advanced)]
2104                 public event DataGridViewRowEventHandler RowUnshared {
2105                         add { Events.AddHandler (RowUnsharedEvent, value); }
2106                         remove { Events.RemoveHandler (RowUnsharedEvent, value); }
2107                 }
2108
2109                 public event DataGridViewCellEventHandler RowValidated {
2110                         add { Events.AddHandler (RowValidatedEvent, value); }
2111                         remove { Events.RemoveHandler (RowValidatedEvent, value); }
2112                 }
2113
2114                 public event DataGridViewCellCancelEventHandler RowValidating {
2115                         add { Events.AddHandler (RowValidatingEvent, value); }
2116                         remove { Events.RemoveHandler (RowValidatingEvent, value); }
2117                 }
2118
2119                 public event ScrollEventHandler Scroll {
2120                         add { Events.AddHandler (ScrollEvent, value); }
2121                         remove { Events.RemoveHandler (ScrollEvent, value); }
2122                 }
2123
2124                 public event EventHandler SelectionChanged {
2125                         add { Events.AddHandler (SelectionChangedEvent, value); }
2126                         remove { Events.RemoveHandler (SelectionChangedEvent, value); }
2127                 }
2128
2129                 [EditorBrowsable (EditorBrowsableState.Advanced)]
2130                 public event DataGridViewSortCompareEventHandler SortCompare {
2131                         add { Events.AddHandler (SortCompareEvent, value); }
2132                         remove { Events.RemoveHandler (SortCompareEvent, value); }
2133                 }
2134
2135                 public event EventHandler Sorted {
2136                         add { Events.AddHandler (SortedEvent, value); }
2137                         remove { Events.RemoveHandler (SortedEvent, value); }
2138                 }
2139
2140                 public event DataGridViewRowEventHandler UserAddedRow {
2141                         add { Events.AddHandler (UserAddedRowEvent, value); }
2142                         remove { Events.RemoveHandler (UserAddedRowEvent, value); }
2143                 }
2144
2145                 public event DataGridViewRowEventHandler UserDeletedRow {
2146                         add { Events.AddHandler (UserDeletedRowEvent, value); }
2147                         remove { Events.RemoveHandler (UserDeletedRowEvent, value); }
2148                 }
2149
2150                 public event DataGridViewRowCancelEventHandler UserDeletingRow {
2151                         add { Events.AddHandler (UserDeletingRowEvent, value); }
2152                         remove { Events.RemoveHandler (UserDeletingRowEvent, value); }
2153                 }
2154
2155                 [Browsable (false)]
2156                 [EditorBrowsable (EditorBrowsableState.Never)]
2157                 public new event EventHandler StyleChanged {
2158                         add { base.StyleChanged += value; }
2159                         remove { base.StyleChanged -= value; }
2160                 }
2161
2162                 [Browsable (false)]
2163                 [EditorBrowsable (EditorBrowsableState.Never)]
2164                 public new event EventHandler TextChanged {
2165                         add { base.TextChanged += value; }
2166                         remove { base.TextChanged -= value; }
2167                 }
2168
2169                 [EditorBrowsable (EditorBrowsableState.Advanced)]
2170                 public virtual DataGridViewAdvancedBorderStyle AdjustColumnHeaderBorderStyle (DataGridViewAdvancedBorderStyle dataGridViewAdvancedBorderStyleInput, DataGridViewAdvancedBorderStyle dataGridViewAdvancedBorderStylePlaceholder, bool isFirstDisplayedColumn, bool isLastVisibleColumn) {
2171                         return (DataGridViewAdvancedBorderStyle) ((ICloneable)dataGridViewAdvancedBorderStyleInput).Clone();
2172                 }
2173
2174                 public bool AreAllCellsSelected (bool includeInvisibleCells) {
2175                         foreach (DataGridViewRow row in rows) {
2176                                 foreach (DataGridViewCell cell in row.Cells) {
2177                                         if (includeInvisibleCells == false && cell.Visible == false) {
2178                                                 continue;
2179                                         }
2180                                         if (!cell.Selected) {
2181                                                 return false;
2182                                         }
2183                                 }
2184                         }
2185                         return true;
2186                 }
2187
2188                 public void AutoResizeColumn (int columnIndex) {
2189                         AutoResizeColumn (columnIndex, DataGridViewAutoSizeColumnMode.AllCells);
2190                 }
2191
2192                 public void AutoResizeColumn (int columnIndex, DataGridViewAutoSizeColumnMode autoSizeColumnMode)
2193                 {
2194                         AutoResizeColumnInternal (columnIndex, autoSizeColumnMode);
2195                 }
2196
2197                 public void AutoResizeColumnHeadersHeight ()
2198                 {
2199                         int new_height = 0;
2200
2201                         foreach (DataGridViewColumn col in Columns)
2202                                 new_height = Math.Max (new_height, col.HeaderCell.PreferredSize.Height);
2203
2204                         if (ColumnHeadersHeight != new_height)
2205                                 ColumnHeadersHeight = new_height;
2206                 }
2207
2208                 [MonoTODO ("columnIndex parameter is not used")]
2209                 public void AutoResizeColumnHeadersHeight (int columnIndex)
2210                 {
2211                         AutoResizeColumnHeadersHeight ();
2212                 }
2213
2214                 public void AutoResizeColumns () {
2215                         AutoResizeColumns (DataGridViewAutoSizeColumnsMode.AllCells);
2216                 }
2217
2218                 public void AutoResizeColumns (DataGridViewAutoSizeColumnsMode autoSizeColumnsMode) {
2219                         AutoResizeColumns (autoSizeColumnsMode, true);
2220                 }
2221
2222                 public void AutoResizeRow (int rowIndex)
2223                 {
2224                         AutoResizeRow (rowIndex, DataGridViewAutoSizeRowMode.AllCells, true);
2225                 }
2226
2227                 public void AutoResizeRow (int rowIndex, DataGridViewAutoSizeRowMode autoSizeRowMode)
2228                 {
2229                         AutoResizeRow (rowIndex, autoSizeRowMode, true);
2230                 }
2231
2232                 public void AutoResizeRowHeadersWidth (DataGridViewRowHeadersWidthSizeMode rowHeadersWidthSizeMode)
2233                 {
2234                         if (rowHeadersWidthSizeMode == DataGridViewRowHeadersWidthSizeMode.AutoSizeToFirstHeader) {
2235                                 RowHeadersWidth = GetRowInternal (0).HeaderCell.PreferredSize.Width;
2236                                 return;
2237                         }
2238
2239                         int new_width = 0;
2240
2241                         if (rowHeadersWidthSizeMode == DataGridViewRowHeadersWidthSizeMode.AutoSizeToDisplayedHeaders) {
2242                                 foreach (DataGridViewRow row in Rows)
2243                                         if (row.Displayed)
2244                                                 new_width = Math.Max (new_width, row.HeaderCell.PreferredSize.Width);
2245
2246                                 if (RowHeadersWidth != new_width)
2247                                         RowHeadersWidth = new_width;
2248
2249                                 return;
2250                         }
2251
2252                         if (rowHeadersWidthSizeMode == DataGridViewRowHeadersWidthSizeMode.AutoSizeToAllHeaders) {
2253                                 foreach (DataGridViewRow row in Rows)
2254                                         new_width = Math.Max (new_width, row.HeaderCell.PreferredSize.Width);
2255
2256                                 if (RowHeadersWidth != new_width)
2257                                         RowHeadersWidth = new_width;
2258
2259                                 return;
2260                         }
2261                 }
2262
2263                 [MonoTODO ("Does not use rowIndex parameter.")]
2264                 public void AutoResizeRowHeadersWidth (int rowIndex, DataGridViewRowHeadersWidthSizeMode rowHeadersWidthSizeMode)
2265                 {
2266                         AutoResizeRowHeadersWidth (rowHeadersWidthSizeMode);
2267                 }
2268
2269                 public void AutoResizeRows ()
2270                 {
2271                         AutoResizeRows (0, Rows.Count, DataGridViewAutoSizeRowMode.AllCells, false);
2272                 }
2273
2274                 public void AutoResizeRows (DataGridViewAutoSizeRowsMode autoSizeRowsMode)
2275                 {
2276                         if (!Enum.IsDefined(typeof(DataGridViewAutoSizeRowsMode), autoSizeRowsMode))
2277                                 throw new InvalidEnumArgumentException ("Parameter autoSizeRowsMode is not a valid DataGridViewRowsMode.");
2278                         if ((autoSizeRowsMode == DataGridViewAutoSizeRowsMode.AllHeaders || autoSizeRowsMode == DataGridViewAutoSizeRowsMode.DisplayedHeaders) && rowHeadersVisible == false)
2279                                 throw new InvalidOperationException ("Parameter autoSizeRowsMode cannot be AllHeaders or DisplayedHeaders in this DataGridView.");
2280                         if (autoSizeRowsMode == DataGridViewAutoSizeRowsMode.None)
2281                                 throw new ArgumentException ("Parameter autoSizeRowsMode cannot be None.");
2282
2283                         AutoResizeRows (autoSizeRowsMode, false);
2284                 }
2285
2286                 public virtual bool BeginEdit (bool selectAll) {
2287                         if (currentCell == null || currentCell.IsInEditMode)
2288                                 return false;
2289
2290                         if (currentCell.RowIndex >= 0) {
2291                                 if ((currentCell.InheritedState & DataGridViewElementStates.ReadOnly) == DataGridViewElementStates.ReadOnly) {
2292                                         return false;
2293                                 }
2294                         }
2295
2296                         DataGridViewCell cell = currentCell;
2297                         Type editType = cell.EditType;
2298
2299                         if (editType == null && !(cell is IDataGridViewEditingCell))
2300                                 return false;
2301
2302                         // Give user a chance to cancel the edit
2303                         DataGridViewCellCancelEventArgs e = new DataGridViewCellCancelEventArgs (cell.ColumnIndex, cell.RowIndex);
2304                         OnCellBeginEdit (e);
2305
2306                         if (e.Cancel)
2307                                 return false;
2308
2309                         cell.SetIsInEditMode (true);
2310
2311                         // The cell has an editing control we need to setup
2312                         if (editType != null) {
2313                                 Control ctrl = EditingControlInternal;
2314
2315                                 // Check if we can reuse the one we already have
2316                                 bool isCorrectType = ctrl != null && ctrl.GetType () == editType;
2317
2318                                 if (!isCorrectType)
2319                                         ctrl = null;
2320
2321                                 // We couldn't use the existing one, create a new one
2322                                 if (ctrl == null) {
2323                                         ctrl = (Control) Activator.CreateInstance (editType);
2324                                         EditingControlInternal = ctrl;
2325                                 }
2326
2327                                 // Call some functions that allows the editing control to get setup
2328                                 DataGridViewCellStyle style = cell.RowIndex == -1 ? DefaultCellStyle : cell.InheritedStyle;
2329                                 cell.InitializeEditingControl (cell.RowIndex, cell.FormattedValue, style);
2330                                 OnEditingControlShowing (new DataGridViewEditingControlShowingEventArgs (EditingControlInternal, style));
2331                                 cell.PositionEditingControl (true, true, this.GetCellDisplayRectangle (cell.ColumnIndex, cell.RowIndex, false), bounds, style, false, false, (columns [cell.ColumnIndex].DisplayIndex == 0), (cell.RowIndex == 0));
2332
2333                                 // Show the editing control
2334                                 if (EditingControlInternal != null)
2335                                         EditingControlInternal.Visible = true;
2336
2337                                 IDataGridViewEditingControl dgvEditingControl = (IDataGridViewEditingControl) EditingControlInternal;
2338                                 if (dgvEditingControl != null) {
2339                                         dgvEditingControl.EditingControlDataGridView = this;
2340                                         dgvEditingControl.EditingControlRowIndex = currentCell.OwningRow.Index;
2341                                         dgvEditingControl.ApplyCellStyleToEditingControl (style);
2342                                         dgvEditingControl.PrepareEditingControlForEdit (selectAll);
2343                                         dgvEditingControl.EditingControlFormattedValue = currentCell.EditedFormattedValue;
2344                                 }
2345                                 return true;
2346                         }
2347
2348                         // If we are here, it means we have a cell that does not have an editing control
2349                         // and simply implements IDataGridViewEditingCell itself.
2350                         (cell as IDataGridViewEditingCell).PrepareEditingCellForEdit (selectAll);
2351
2352                         return true;
2353                 }
2354
2355                 public bool CancelEdit ()
2356                 {
2357                         if (currentCell != null) {
2358                                 if (currentCell.IsInEditMode) {
2359                                         currentCell.SetIsInEditMode (false);
2360                                         currentCell.DetachEditingControl ();
2361                                 }
2362
2363                                 if (currentCell.RowIndex == NewRowIndex) {
2364                                         if (DataManager != null)
2365                                                 DataManager.CancelCurrentEdit ();
2366
2367                                         new_row_editing = false;
2368                                         PrepareEditingRow (false, false);
2369                                         MoveCurrentCell (currentCell.ColumnIndex, NewRowIndex, true, false, false, true);
2370                                         OnUserDeletedRow (new DataGridViewRowEventArgs (EditingRow));
2371                                 }
2372                         }
2373
2374                         return true;
2375                 }
2376
2377                 public void ClearSelection ()
2378                 {
2379                         foreach (DataGridViewColumn col in SelectedColumns)
2380                                 col.Selected = false;
2381                         foreach (DataGridViewRow row in SelectedRows)
2382                                 row.Selected = false;
2383                         foreach (DataGridViewCell cell in SelectedCells)
2384                                 cell.Selected = false;
2385                 }
2386
2387                 public bool CommitEdit (DataGridViewDataErrorContexts context)
2388                 {
2389                         if (currentCell == null)
2390                                 return true;
2391
2392                         try {
2393                                 // convert
2394                                 object newValue = currentCell.ParseFormattedValue (currentCell.EditedFormattedValue,
2395                                                                                    currentCell.InheritedStyle, null, null);
2396
2397                                 DataGridViewCellValidatingEventArgs validateArgs = new DataGridViewCellValidatingEventArgs (currentCell.ColumnIndex,
2398                                                                                                                             currentCell.RowIndex,
2399                                                                                                                             newValue);
2400                                 // validate
2401                                 OnCellValidating (validateArgs);
2402                                 if (validateArgs.Cancel)
2403                                         return false;
2404                                 OnCellValidated (new DataGridViewCellEventArgs (currentCell.ColumnIndex, currentCell.RowIndex));
2405
2406                                 // commit
2407                                 currentCell.Value = newValue;
2408
2409                         } catch (Exception e) {
2410                                 DataGridViewDataErrorEventArgs args = new DataGridViewDataErrorEventArgs (e, currentCell.ColumnIndex, currentCell.RowIndex,
2411                                                                                                           DataGridViewDataErrorContexts.Commit);
2412                                 OnDataError (false, args);
2413                                 if (args.ThrowException)
2414                                         throw e;
2415                                 return false;
2416                         }
2417                         return true;
2418                 }
2419
2420                 public int DisplayedColumnCount (bool includePartialColumns)
2421                 {
2422                         int result = 0;
2423                         int columnLeft = 0;
2424
2425                         if (RowHeadersVisible)
2426                                 columnLeft += RowHeadersWidth;
2427
2428                         Size visibleClientArea = ClientSize;
2429                         if (verticalScrollBar.Visible)
2430                                 visibleClientArea.Width -= verticalScrollBar.Width;
2431                         if (horizontalScrollBar.Visible)
2432                                 visibleClientArea.Height -= horizontalScrollBar.Height;
2433
2434                         for (int index = first_col_index; index < Columns.Count; index++) {
2435                                 DataGridViewColumn column = Columns[ColumnDisplayIndexToIndex (index)];
2436                                 if (columnLeft + column.Width <= visibleClientArea.Width) {
2437                                         result++;
2438                                         columnLeft += column.Width;
2439                                 } else {
2440                                         if (includePartialColumns)
2441                                                 result++;
2442                                         break;
2443                                 }
2444                         }
2445
2446                         return result;
2447                 }
2448
2449                 public int DisplayedRowCount (bool includePartialRow)
2450                 {
2451                         int result = 0;
2452                         int rowTop = 0;
2453
2454                         if (ColumnHeadersVisible)
2455                                 rowTop += ColumnHeadersHeight;
2456
2457                         Size visibleClientArea = ClientSize;
2458                         if (verticalScrollBar.Visible)
2459                                 visibleClientArea.Width -= verticalScrollBar.Width;
2460                         if (horizontalScrollBar.Visible)
2461                                 visibleClientArea.Height -= horizontalScrollBar.Height;
2462
2463                         for (int index = first_row_index; index < Rows.Count; index++) {
2464                                 DataGridViewRow row = GetRowInternal (index);
2465                                 if (rowTop + row.Height <= visibleClientArea.Height) {
2466                                         result++;
2467                                         rowTop += row.Height;
2468                                 } else {
2469                                         if (includePartialRow)
2470                                                 result++;
2471                                         break;
2472                                 }
2473                         }
2474
2475                         return result;
2476                 }
2477
2478                 public bool EndEdit ()
2479                 {
2480                         return EndEdit (DataGridViewDataErrorContexts.Commit);
2481                 }
2482
2483                 [MonoTODO ("Does not use context parameter")]
2484                 public bool EndEdit (DataGridViewDataErrorContexts context)
2485                 {
2486                         if (currentCell == null || !currentCell.IsInEditMode)
2487                                 return true;
2488
2489                         if (!CommitEdit (context)) {
2490                                 if (DataManager != null)
2491                                         DataManager.EndCurrentEdit ();
2492                                 if (EditingControl != null)
2493                                         EditingControl.Focus ();
2494                                 return false;
2495                         }
2496
2497                         currentCell.SetIsInEditMode (false);
2498                         currentCell.DetachEditingControl ();
2499                         OnCellEndEdit (new DataGridViewCellEventArgs (currentCell.ColumnIndex, currentCell.RowIndex));
2500                         if (context != DataGridViewDataErrorContexts.LeaveControl)
2501                                 Focus ();
2502                         if (currentCell.RowIndex == NewRowIndex) {
2503                                 new_row_editing = false;
2504                                 editing_row = null; // editing row becomes a real row
2505                                 PrepareEditingRow (true, false); // add a new editing row
2506                                 MoveCurrentCell (currentCell.ColumnIndex, NewRowIndex, true, false, false, true);
2507                         }
2508                         return true;
2509                 }
2510
2511                 public int GetCellCount (DataGridViewElementStates includeFilter) {
2512                         int result = 0;
2513                         foreach (DataGridViewRow row in rows) {
2514                                 foreach (DataGridViewCell cell in row.Cells) {
2515                                         if ((cell.State & includeFilter) != 0) {
2516                                                 result++;
2517                                         }
2518                                 }
2519                         }
2520                         return result;
2521                 }
2522
2523                 internal DataGridViewRow GetRowInternal (int rowIndex)
2524                 {
2525                         return Rows.SharedRow (rowIndex);
2526                 }
2527
2528                 internal DataGridViewCell GetCellInternal (int colIndex, int rowIndex)
2529                 {
2530                         return GetRowInternal (rowIndex).Cells.GetCellInternal (colIndex);
2531                 }
2532
2533                 public Rectangle GetCellDisplayRectangle (int columnIndex, int rowIndex, bool cutOverflow) {
2534                         // Allow the column and row headers (index == -1).
2535                         if (columnIndex < -1 || columnIndex >= columns.Count) {
2536                                 throw new ArgumentOutOfRangeException ("Column index is out of range.");
2537                         }
2538                         if (rowIndex < -1 || (rowIndex > 0 && rowIndex >= rows.Count)) {
2539                                 throw new ArgumentOutOfRangeException ("Row index is out of range.");
2540                         }
2541
2542                         int x = 0, y = 0, w = 0, h = 0;
2543
2544                         x = BorderWidth;
2545                         y = BorderWidth;
2546
2547                         if (ColumnHeadersVisible)
2548                                 y += ColumnHeadersHeight;
2549
2550                         if (RowHeadersVisible)
2551                                 x += RowHeadersWidth;
2552
2553                         // Handle the top left cell when both column and row headers are showing.
2554                         if (columnIndex == -1 && rowIndex == -1)
2555                                 return new Rectangle (BorderWidth, BorderWidth, RowHeadersWidth, ColumnHeadersHeight);
2556
2557                         if (columnIndex >= 0)
2558                         {
2559                                 List<DataGridViewColumn> cols = columns.ColumnDisplayIndexSortedArrayList;
2560
2561                                 for (int i = first_col_index; i < cols.Count; i++) {
2562                                         if (!cols[i].Visible)
2563                                                 continue;
2564
2565                                         if (cols[i].Index == columnIndex) {
2566                                                 w = cols[i].Width;
2567                                                 break;
2568                                         }
2569
2570                                         x += cols[i].Width;
2571                                 }
2572                         }
2573
2574                         // Handle a cell in the header row.
2575                         if (rowIndex == -1)
2576                                 return new Rectangle (x, BorderWidth, w, ColumnHeadersHeight);
2577
2578                         for (int i = first_row_index; i < Rows.Count; i++) {
2579                                 if (!rows[i].Visible)
2580                                         continue;
2581
2582                                 if (rows[i].Index == rowIndex) {
2583                                         h = rows [i].Height;
2584                                         break;
2585                                 }
2586
2587                                 y += rows [i].Height;
2588                         }
2589
2590                         // Handle a cell in the header column.
2591                         if (columnIndex == -1)
2592                                 return new Rectangle (BorderWidth, y, RowHeadersWidth, h);
2593
2594                         return new Rectangle (x, y, w, h);
2595                 }
2596
2597                 public virtual DataObject GetClipboardContent () {
2598
2599                         if (clipboardCopyMode == DataGridViewClipboardCopyMode.Disable)
2600                                 throw new InvalidOperationException ("Generating Clipboard content is not supported when the ClipboardCopyMode property is Disable.");
2601
2602                         int start_row = int.MaxValue, end_row = int.MinValue;
2603                         int start_col = int.MaxValue, end_col = int.MinValue;
2604
2605                         bool include_row_headers = false;
2606                         bool include_col_headers = false;
2607                         bool only_included_headers = false;
2608                         bool headers_includable = false;
2609
2610                         switch (ClipboardCopyMode) {
2611                         case DataGridViewClipboardCopyMode.EnableWithoutHeaderText:
2612                                 break;
2613                         case DataGridViewClipboardCopyMode.EnableWithAutoHeaderText:
2614                                 // Headers are included if not selection mode is CellSelect, and any header is selected.
2615                                 headers_includable = selectionMode != DataGridViewSelectionMode.CellSelect;
2616                                 break;
2617                         case DataGridViewClipboardCopyMode.EnableAlwaysIncludeHeaderText:
2618                                 include_col_headers = include_row_headers = true;
2619                                 break;
2620                         }
2621
2622                         BitArray included_rows = new BitArray (RowCount);
2623                         BitArray included_cols = new BitArray (ColumnCount);
2624
2625                         // If there are any selected columns,
2626                         // include the column headers (if headers are to be shown).
2627                         if (headers_includable && !include_col_headers) {
2628                                 for (int c = 0; c < ColumnCount; c++) {
2629                                         if (Columns [c].Selected) {
2630                                                 include_col_headers = true;
2631                                                 break;
2632                                         }
2633                                 }
2634                         }
2635
2636                         // Find the smallest rectangle that encompasses all selected cells.
2637                         for (int r = 0; r < RowCount; r++) {
2638                                 DataGridViewRow row = Rows [r];
2639
2640                                 if (headers_includable && !include_row_headers && row.Selected) {
2641                                         include_row_headers = true;
2642                                 }
2643
2644                                 for (int c = 0; c < ColumnCount; c++) {
2645                                         DataGridViewCell cell = row.Cells [c];
2646
2647                                         if (cell == null || !cell.Selected)
2648                                                 continue;
2649
2650                                         included_cols [c] = true;
2651                                         included_rows [r] = true;
2652
2653                                         start_row = Math.Min (start_row, r);
2654                                         start_col = Math.Min (start_col, c);
2655                                         end_row = Math.Max (end_row, r);
2656                                         end_col = Math.Max (end_col, c);
2657                                 }
2658                         }
2659
2660                         // Mark rows/columns in between selected cells as included if the selection mode isn't FullHeaderSelect.
2661                         switch (selectionMode){
2662                         case DataGridViewSelectionMode.CellSelect:
2663                         case DataGridViewSelectionMode.ColumnHeaderSelect:
2664                         case DataGridViewSelectionMode.RowHeaderSelect:
2665                                 if (selectionMode != DataGridViewSelectionMode.ColumnHeaderSelect) {
2666                                         for (int r = start_row; r <= end_row; r++) {
2667                                                 included_rows.Set (r, true);
2668                                         }
2669                                 } else if (start_row <= end_row) {
2670                                         included_rows.SetAll (true);
2671                                 }
2672                                 if (selectionMode != DataGridViewSelectionMode.RowHeaderSelect) {
2673                                         for (int c = start_col; c <= end_col; c++) {
2674                                                 included_cols.Set (c, true);
2675                                         }
2676                                 }
2677                                 break;
2678                         case DataGridViewSelectionMode.FullColumnSelect:
2679                         case DataGridViewSelectionMode.FullRowSelect:
2680                                 only_included_headers = true;
2681                                 break;
2682                         }
2683
2684                         if (start_row > end_row)
2685                                 return null;
2686
2687                         if (start_col > end_col)
2688                                 return null;
2689
2690                         DataObject result = new DataObject ();
2691
2692                         StringBuilder text_builder = new StringBuilder ();
2693                         StringBuilder utext_builder = new StringBuilder ();
2694                         StringBuilder html_builder = new StringBuilder ();
2695                         StringBuilder csv_builder = new StringBuilder ();
2696
2697                         // Loop through all rows and columns to create the content.
2698                         // -1 is the header row/column.
2699                         int first_row = start_row;
2700                         int first_col = start_col;
2701                         if (include_col_headers) {
2702                                 first_row = -1;
2703                         }
2704                         for (int r = first_row; r <= end_row; r++) {
2705                                 DataGridViewRow row = null;
2706
2707                                 if (r >= 0) {
2708                                         if (!included_rows [r])
2709                                                 continue;
2710
2711                                         row = Rows [r];
2712                                 }
2713
2714                                 if (include_row_headers) {
2715                                         first_col = -1;
2716                                 }
2717
2718                                 for (int c = first_col; c <= end_col; c++) {
2719                                         DataGridViewCell cell = null;
2720
2721                                         if (c >= 0 && only_included_headers && !included_cols [c])
2722                                                 continue;
2723
2724                                         if (row == null) {
2725                                                 if (c == -1) {
2726                                                         cell = TopLeftHeaderCell;
2727                                                 } else {
2728                                                         cell = Columns [c].HeaderCell;
2729                                                 }
2730                                         } else {
2731                                                 if (c == -1) {
2732                                                         cell = row.HeaderCell;
2733                                                 } else {
2734                                                         cell = row.Cells [c];
2735                                                 }
2736                                         }
2737
2738                                         string text, utext, html, csv;
2739                                         bool is_first_cell = (c == first_col);
2740                                         bool is_last_cell = (c == end_col);
2741                                         bool is_first_row = (r == first_row);
2742                                         bool is_last_row = (r == end_row);
2743
2744                                         if (cell == null) {
2745                                                 text = string.Empty;
2746                                                 utext = string.Empty;
2747                                                 html = string.Empty;
2748                                                 csv = string.Empty;
2749                                         } else {
2750                                                 text = cell.GetClipboardContentInternal (r, is_first_cell, is_last_cell, is_first_row, is_last_row, DataFormats.Text) as string;
2751                                                 utext = cell.GetClipboardContentInternal (r, is_first_cell, is_last_cell, is_first_row, is_last_row, DataFormats.UnicodeText) as string;
2752                                                 html = cell.GetClipboardContentInternal (r, is_first_cell, is_last_cell, is_first_row, is_last_row, DataFormats.Html) as string;
2753                                                 csv = cell.GetClipboardContentInternal (r, is_first_cell, is_last_cell, is_first_row, is_last_row, DataFormats.CommaSeparatedValue) as string;
2754                                         }
2755
2756                                         text_builder.Append (text);
2757                                         utext_builder.Append (utext);
2758                                         html_builder.Append (html);
2759                                         csv_builder.Append (csv);
2760
2761                                         if (c == -1) { // If we just did the row header, jump to the first column.
2762                                                 c = start_col - 1;
2763                                         }
2764                                 }
2765
2766                                 if (r == -1) {// If we just did the column header, jump to the first row.
2767                                         r = start_row - 1;
2768                                 }
2769                         }
2770
2771                         //
2772                         // Html content always get the \r\n newline
2773                         // It's valid html anyway, and it eases testing quite a bit
2774                         // (since otherwise we'd have to change the start indices
2775                         // in the added prologue/epilogue text)
2776                         //
2777                         int fragment_end = 135 + html_builder.Length;
2778                         int html_end = fragment_end + 36;
2779                         string html_start =
2780                         "Version:1.0{0}" +
2781                         "StartHTML:00000097{0}" +
2782                         "EndHTML:{1:00000000}{0}" +
2783                         "StartFragment:00000133{0}" +
2784                         "EndFragment:{2:00000000}{0}" +
2785                         "<HTML>{0}" +
2786                         "<BODY>{0}" +
2787                         "<!--StartFragment-->";
2788
2789                         html_start = string.Format (html_start, "\r\n", html_end, fragment_end);
2790                         html_builder.Insert (0, html_start);
2791                         html_builder.AppendFormat ("{0}<!--EndFragment-->{0}</BODY>{0}</HTML>", "\r\n");
2792
2793                         result.SetData (DataFormats.CommaSeparatedValue, false, csv_builder.ToString ());
2794                         result.SetData (DataFormats.Html, false, html_builder.ToString ());
2795                         result.SetData (DataFormats.UnicodeText, false, utext_builder.ToString ());
2796                         result.SetData (DataFormats.Text, false, text_builder.ToString ());
2797
2798                         return result;
2799                 }
2800
2801                 [MonoTODO ("Does not use cutOverflow parameter")]
2802                 public Rectangle GetColumnDisplayRectangle (int columnIndex, bool cutOverflow)
2803                 {
2804                         if (columnIndex < 0 || columnIndex > Columns.Count - 1)
2805                                 throw new ArgumentOutOfRangeException ("columnIndex");
2806
2807                         int x = 0;
2808                         int w = 0;
2809
2810                         x = BorderWidth;
2811
2812                         if (RowHeadersVisible)
2813                                 x += RowHeadersWidth;
2814
2815                         List<DataGridViewColumn> cols = columns.ColumnDisplayIndexSortedArrayList;
2816
2817                         for (int i = first_col_index; i < cols.Count; i++) {
2818                                 if (!cols[i].Visible)
2819                                         continue;
2820
2821                                 if (cols[i].Index == columnIndex) {
2822                                         w = cols[i].Width;
2823                                         break;
2824                                 }
2825
2826                                 x += cols[i].Width;
2827                         }
2828
2829                         return new Rectangle (x, 0, w, Height);
2830                 }
2831
2832                 [MonoTODO ("Does not use cutOverflow parameter")]
2833                 public Rectangle GetRowDisplayRectangle (int rowIndex, bool cutOverflow)
2834                 {
2835                         if (rowIndex < 0 || rowIndex > Rows.Count - 1)
2836                                 throw new ArgumentOutOfRangeException ("rowIndex");
2837
2838                         int y = 0;
2839                         int h = 0;
2840
2841                         y = BorderWidth;
2842
2843                         if (ColumnHeadersVisible)
2844                                 y += ColumnHeadersHeight;
2845
2846
2847                         for (int i = first_row_index; i < Rows.Count; i++) {
2848                                 if (!rows[i].Visible)
2849                                         continue;
2850
2851                                 if (rows[i].Index == rowIndex) {
2852                                         h = rows [i].Height;
2853                                         break;
2854                                 }
2855
2856                                 y += rows [i].Height;
2857                         }
2858
2859                         return new Rectangle (0, y, Width, h);
2860                 }
2861
2862                 public HitTestInfo HitTest (int x, int y) {
2863                         ///////////////////////////////////////////////////////
2864                         //Console.WriteLine ("HitTest ({0}, {1})", x, y);
2865                         bool isInColHeader = columnHeadersVisible && y >= 0 && y <= ColumnHeadersHeight;
2866                         bool isInRowHeader = rowHeadersVisible && x >= 0 && x <= RowHeadersWidth;
2867
2868                         // TopLeftHeader
2869                         if (isInColHeader && isInRowHeader)
2870                                 return new HitTestInfo (-1, x, -1, y, DataGridViewHitTestType.TopLeftHeader);
2871
2872                         // HorizontalScrollBar
2873                         if (horizontalScrollBar.Visible && horizontalScrollBar.Bounds.Contains (x, y))
2874                                 return new HitTestInfo (-1, x, -1, y, DataGridViewHitTestType.HorizontalScrollBar);
2875
2876                         // VerticalScrollBar
2877                         if (verticalScrollBar.Visible && verticalScrollBar.Bounds.Contains (x, y))
2878                                 return new HitTestInfo (-1, x, -1, y, DataGridViewHitTestType.VerticalScrollBar);
2879
2880                         // The little box in the bottom right if both scrollbars are shown is None
2881                         if (verticalScrollBar.Visible && horizontalScrollBar.Visible)
2882                                 if (new Rectangle (verticalScrollBar.Left, horizontalScrollBar.Top, verticalScrollBar.Width, horizontalScrollBar.Height).Contains (x, y))
2883                                         return new HitTestInfo (-1, x, -1, y, DataGridViewHitTestType.None);
2884
2885                         int rowindex = -1;
2886                         int colindex = -1;
2887
2888                         int top = columnHeadersVisible ? columnHeadersHeight : 0;
2889
2890                         for (int i = first_row_index; i < Rows.Count; i++) {
2891                                 DataGridViewRow row = Rows[i];
2892                                 if (!row.Visible)
2893                                         continue;
2894
2895                                 if (y > top && y <= (top + row.Height)) {
2896                                         rowindex = i;
2897                                         break;
2898                                 }
2899
2900                                 top += row.Height;
2901                         }
2902
2903                         int left = rowHeadersVisible ? RowHeadersWidth : 0;
2904
2905                         List<DataGridViewColumn> cols = columns.ColumnDisplayIndexSortedArrayList;
2906
2907                         for (int i = first_col_index; i < cols.Count; i++) {
2908                                 if (!cols[i].Visible)
2909                                         continue;
2910
2911                                 if (x > left && x <= (left + cols[i].Width)) {
2912                                         colindex = cols[i].Index;
2913                                         break;
2914                                 }
2915
2916                                 left += cols[i].Width;
2917                         }
2918
2919                         if (colindex >= 0 && rowindex >= 0)
2920                                 return new HitTestInfo (colindex, x, rowindex, y, DataGridViewHitTestType.Cell);
2921
2922                         if (isInColHeader && colindex > -1)
2923                                 return new HitTestInfo (colindex, x, rowindex, y, DataGridViewHitTestType.ColumnHeader);
2924
2925                         if (isInRowHeader && rowindex > -1)
2926                                 return new HitTestInfo (colindex, x, rowindex, y, DataGridViewHitTestType.RowHeader);
2927
2928                         return new HitTestInfo (-1, x, -1, y, DataGridViewHitTestType.None);
2929                 }
2930
2931                 public void InvalidateCell (DataGridViewCell dataGridViewCell)
2932                 {
2933                         if (dataGridViewCell == null)
2934                                 throw new ArgumentNullException ("Cell is null");
2935
2936                         if (dataGridViewCell.DataGridView != this)
2937                                 throw new ArgumentException ("The specified cell does not belong to this DataGridView.");
2938
2939                         InvalidateCell (dataGridViewCell.ColumnIndex, dataGridViewCell.RowIndex);
2940                 }
2941
2942                 public void InvalidateCell (int columnIndex, int rowIndex)
2943                 {
2944                         // Allow the header column (columnIndex == -1).
2945                         if (columnIndex < -1 || columnIndex >= columns.Count)
2946                                 throw new ArgumentOutOfRangeException ("Column index is out of range.");
2947
2948                         // Allow the header row (rowIndex == -1).
2949                         if (rowIndex < -1 || rowIndex >= rows.Count)
2950                                 throw new ArgumentOutOfRangeException ("Row index is out of range.");
2951
2952                         if (!is_binding)
2953                                 Invalidate (GetCellDisplayRectangle (columnIndex, rowIndex, true));
2954                 }
2955
2956                 public void InvalidateColumn (int columnIndex)
2957                 {
2958                         if (columnIndex < 0 || columnIndex >= columns.Count)
2959                                 throw new ArgumentOutOfRangeException ("Column index is out of range.");
2960
2961                         if (!is_binding)
2962                                 Invalidate (GetColumnDisplayRectangle (columnIndex, true));
2963                 }
2964
2965                 public void InvalidateRow (int rowIndex)
2966                 {
2967                         if (rowIndex < 0 || rowIndex >= rows.Count)
2968                                 throw new ArgumentOutOfRangeException ("Row index is out of range.");
2969
2970                         if (!is_binding)
2971                                 Invalidate (GetRowDisplayRectangle (rowIndex, true));
2972                 }
2973
2974                 public virtual void NotifyCurrentCellDirty (bool dirty) {
2975                         if (currentCell != null)
2976                                 InvalidateCell (currentCell);
2977                 }
2978
2979                 public bool RefreshEdit ()
2980                 {
2981                         if (IsCurrentCellInEditMode) {
2982                                 currentCell.InitializeEditingControl (currentCell.RowIndex, currentCell.FormattedValue, currentCell.InheritedStyle);
2983                                 return true;
2984                         }
2985
2986                         return false;
2987                 }
2988
2989                 [EditorBrowsable (EditorBrowsableState.Never)]
2990                 public override void ResetText ()
2991                 {
2992                         Text = string.Empty;
2993                 }
2994
2995                 public void SelectAll () {
2996                         switch (selectionMode) {
2997                                 case DataGridViewSelectionMode.FullRowSelect:
2998                                         foreach (DataGridViewRow row in rows) {
2999                                                 (row as DataGridViewBand).Selected = true;
3000                                         }
3001                                         break;
3002                                 case DataGridViewSelectionMode.FullColumnSelect:
3003                                         foreach (DataGridViewColumn col in columns) {
3004                                                 (col as DataGridViewBand).Selected = true;
3005                                         }
3006                                         break;
3007                                 default:
3008                                         foreach (DataGridViewRow row in rows) {
3009                                                 foreach (DataGridViewCell cell in row.Cells) {
3010                                                         cell.Selected = true;
3011                                                 }
3012                                         }
3013                                         break;
3014                         }
3015
3016                         Invalidate ();
3017                 }
3018
3019                 public virtual void Sort (IComparer comparer)
3020                 {
3021                         if (comparer == null)
3022                                 throw new ArgumentNullException ("comparer");
3023                         if (VirtualMode || DataSource != null)
3024                                 throw new InvalidOperationException ();
3025
3026                         if (SortedColumn != null)
3027                                 SortedColumn.HeaderCell.SortGlyphDirection = SortOrder.None;
3028
3029                         EndEdit ();
3030
3031                         Rows.Sort (comparer);
3032
3033                         sortedColumn = null;
3034                         sortOrder = SortOrder.None;
3035
3036                         currentCell = null;
3037
3038                         Invalidate ();
3039
3040                         OnSorted (EventArgs.Empty);
3041                 }
3042
3043                 public virtual void Sort (DataGridViewColumn dataGridViewColumn, ListSortDirection direction)
3044                 {
3045                         if (dataGridViewColumn == null)
3046                                 throw new ArgumentNullException ("dataGridViewColumn");
3047                         if (dataGridViewColumn.DataGridView != this)
3048                                 throw new ArgumentException ("dataGridViewColumn");
3049
3050                         if (!EndEdit ())
3051                                 return;
3052
3053                         if (SortedColumn != null)
3054                                 SortedColumn.HeaderCell.SortGlyphDirection = SortOrder.None;
3055
3056                         sortedColumn = dataGridViewColumn;
3057                         sortOrder = direction == ListSortDirection.Ascending ? SortOrder.Ascending : SortOrder.Descending;
3058
3059                         if (Rows.Count == 0)
3060                                 return;
3061
3062                         if (dataGridViewColumn.IsDataBound) {
3063                                 IBindingList bindingList = DataManager.List as IBindingList;
3064                                 if (bindingList != null && bindingList.SupportsSorting) {
3065                                         bindingList.ApplySort (DataManager.GetItemProperties()[dataGridViewColumn.DataPropertyName], direction);
3066                                         dataGridViewColumn.HeaderCell.SortGlyphDirection = sortOrder;
3067                                 }
3068                         } else {
3069                                 // Figure out if this is a numeric sort or text sort
3070                                 bool is_numeric = true;
3071                                 double n;
3072
3073                                 foreach (DataGridViewRow row in Rows) {
3074                                         object val = row.Cells[dataGridViewColumn.Index].Value;
3075
3076                                         if (val != null && !double.TryParse (val.ToString (), out n)) {
3077                                                 is_numeric = false;
3078                                                 break;
3079                                         }
3080                                 }
3081
3082                                 ColumnSorter sorter = new ColumnSorter (dataGridViewColumn, direction, is_numeric);
3083                                 Rows.Sort (sorter);
3084                                 dataGridViewColumn.HeaderCell.SortGlyphDirection = sortOrder;
3085                         }
3086
3087                         Invalidate ();
3088                         OnSorted (EventArgs.Empty);
3089                 }
3090
3091                 public void UpdateCellErrorText (int columnIndex, int rowIndex)
3092                 {
3093                         if (columnIndex < 0 || columnIndex > Columns.Count - 1)
3094                                 throw new ArgumentOutOfRangeException ("columnIndex");
3095                         if (rowIndex < 0 || rowIndex > Rows.Count - 1)
3096                                 throw new ArgumentOutOfRangeException ("rowIndex");
3097
3098                         InvalidateCell (columnIndex, rowIndex);
3099                 }
3100
3101                 public void UpdateCellValue (int columnIndex, int rowIndex)
3102                 {
3103                         if (columnIndex < 0 || columnIndex > Columns.Count - 1)
3104                                 throw new ArgumentOutOfRangeException ("columnIndex");
3105                         if (rowIndex < 0 || rowIndex > Rows.Count - 1)
3106                                 throw new ArgumentOutOfRangeException ("rowIndex");
3107
3108                         InvalidateCell (columnIndex, rowIndex);
3109                 }
3110
3111                 public void UpdateRowErrorText (int rowIndex)
3112                 {
3113                         if (rowIndex < 0 || rowIndex > Rows.Count - 1)
3114                                 throw new ArgumentOutOfRangeException ("rowIndex");
3115
3116                         InvalidateRow (rowIndex);
3117                 }
3118
3119                 public void UpdateRowErrorText (int rowIndexStart, int rowIndexEnd)
3120                 {
3121                         if (rowIndexStart < 0 || rowIndexStart > Rows.Count - 1)
3122                                 throw new ArgumentOutOfRangeException ("rowIndexStart");
3123                         if (rowIndexEnd < 0 || rowIndexEnd > Rows.Count - 1)
3124                                 throw new ArgumentOutOfRangeException ("rowIndexEnd");
3125                         if (rowIndexEnd < rowIndexStart)
3126                                 throw new ArgumentOutOfRangeException ("rowIndexEnd", "rowIndexEnd must be greater than rowIndexStart");
3127
3128                         for (int i = rowIndexStart; i <= rowIndexEnd; i++)
3129                                 InvalidateRow (i);
3130                 }
3131
3132                 public void UpdateRowHeightInfo (int rowIndex, bool updateToEnd)
3133                 {
3134                         if (rowIndex < 0 && updateToEnd)
3135                                 throw new ArgumentOutOfRangeException ("rowIndex");
3136                         if (rowIndex < -1 && !updateToEnd)
3137                                 throw new ArgumentOutOfRangeException ("rowIndex");
3138                         if (rowIndex >= Rows.Count)
3139                                 throw new ArgumentOutOfRangeException ("rowIndex");
3140
3141                         if (!VirtualMode && DataManager == null)
3142                                 return;
3143
3144                         if (rowIndex == -1) {
3145                                 updateToEnd = true;
3146                                 rowIndex = 0;
3147                         }
3148
3149                         if (updateToEnd) {
3150                                 for (int i = rowIndex; i < Rows.Count; i++) {
3151                                         DataGridViewRow row = Rows[i];
3152                                         if (!row.Visible)
3153                                                 continue;
3154
3155                                         DataGridViewRowHeightInfoNeededEventArgs rowInfo =
3156                                                 new DataGridViewRowHeightInfoNeededEventArgs (row.Index, row.Height, row.MinimumHeight);
3157                                         OnRowHeightInfoNeeded (rowInfo);
3158
3159                                         if (row.Height != rowInfo.Height || row.MinimumHeight != rowInfo.MinimumHeight) {
3160                                                 row.Height = rowInfo.Height;
3161                                                 row.MinimumHeight = rowInfo.MinimumHeight;
3162                                                 OnRowHeightInfoPushed (new DataGridViewRowHeightInfoPushedEventArgs (row.Index, rowInfo.Height,
3163                                                                                                                      rowInfo.MinimumHeight));
3164                                         }
3165                                 }
3166                         } else {
3167                                 DataGridViewRow row = Rows[rowIndex];
3168                                 DataGridViewRowHeightInfoNeededEventArgs rowInfo =
3169                                         new DataGridViewRowHeightInfoNeededEventArgs (row.Index, row.Height, row.MinimumHeight);
3170                                 OnRowHeightInfoNeeded (rowInfo);
3171
3172                                 if (row.Height != rowInfo.Height || row.MinimumHeight != rowInfo.MinimumHeight) {
3173                                         row.Height = rowInfo.Height;
3174                                         row.MinimumHeight = rowInfo.MinimumHeight;
3175                                         OnRowHeightInfoPushed (new DataGridViewRowHeightInfoPushedEventArgs (row.Index, rowInfo.Height,
3176                                                                                                              rowInfo.MinimumHeight));
3177                                 }
3178                         }
3179                 }
3180
3181                 protected override bool CanEnableIme {
3182                         get {
3183                                 if (CurrentCell != null && CurrentCell.EditType != null)
3184                                         return true;
3185
3186                                 return false;
3187                         }
3188                 }
3189
3190                 protected override Size DefaultSize {
3191                         get { return new Size (240, 150); }
3192                 }
3193
3194                 protected ScrollBar HorizontalScrollBar {
3195                         get { return horizontalScrollBar; }
3196                 }
3197
3198                 protected ScrollBar VerticalScrollBar {
3199                         get { return verticalScrollBar; }
3200                 }
3201
3202                 protected virtual void AccessibilityNotifyCurrentCellChanged (Point cellAddress)
3203                 {
3204                         throw new NotImplementedException ();
3205                 }
3206
3207                 [MonoTODO ("Does not use fixedHeight parameter")]
3208                 protected void AutoResizeColumn (int columnIndex, DataGridViewAutoSizeColumnMode autoSizeColumnMode, bool fixedHeight)
3209                 {
3210                         AutoResizeColumn (columnIndex, autoSizeColumnMode);
3211                 }
3212
3213                 [MonoTODO ("Does not use fixedRowHeadersWidth or fixedColumnsWidth parameters")]
3214                 protected void AutoResizeColumnHeadersHeight (bool fixedRowHeadersWidth, bool fixedColumnsWidth)
3215                 {
3216                         AutoResizeColumnHeadersHeight ();
3217                 }
3218
3219                 [MonoTODO ("Does not use columnIndex or fixedRowHeadersWidth or fixedColumnsWidth parameters")]
3220                 protected void AutoResizeColumnHeadersHeight (int columnIndex, bool fixedRowHeadersWidth, bool fixedColumnWidth)
3221                 {
3222                         AutoResizeColumnHeadersHeight (columnIndex);
3223                 }
3224
3225                 protected void AutoResizeColumns (DataGridViewAutoSizeColumnsMode autoSizeColumnsMode, bool fixedHeight) {
3226                         for (int i = 0; i < Columns.Count; i++) {
3227                                 AutoResizeColumn (i, (DataGridViewAutoSizeColumnMode) autoSizeColumnsMode, fixedHeight);
3228                         }
3229                 }
3230
3231                 [MonoTODO ("Does not use fixedWidth parameter")]
3232                 protected void AutoResizeRow (int rowIndex, DataGridViewAutoSizeRowMode autoSizeRowMode, bool fixedWidth)
3233                 {
3234                         if (autoSizeRowMode == DataGridViewAutoSizeRowMode.RowHeader && !rowHeadersVisible)
3235                                 throw new InvalidOperationException ("row headers are not visible");
3236                         if (rowIndex < 0 || rowIndex > Rows.Count - 1)
3237                                 throw new ArgumentOutOfRangeException ("rowIndex");
3238
3239                         DataGridViewRow row = GetRowInternal (rowIndex);
3240
3241                         int new_height = row.GetPreferredHeight (rowIndex, autoSizeRowMode, true);
3242
3243                         if (row.Height != new_height)
3244                                 row.SetAutoSizeHeight (new_height);
3245                 }
3246
3247                 [MonoTODO ("Does not use fixedColumnHeadersHeight or fixedRowsHeight parameter")]
3248                 protected void AutoResizeRowHeadersWidth (DataGridViewRowHeadersWidthSizeMode rowHeadersWidthSizeMode, bool fixedColumnHeadersHeight, bool fixedRowsHeight)
3249                 {
3250                         AutoResizeRowHeadersWidth (rowHeadersWidthSizeMode);
3251                 }
3252
3253                 [MonoTODO ("Does not use rowIndex or fixedColumnHeadersHeight or fixedRowsHeight parameter")]
3254                 protected void AutoResizeRowHeadersWidth (int rowIndex, DataGridViewRowHeadersWidthSizeMode rowHeadersWidthSizeMode, bool fixedColumnHeadersHeight, bool fixedRowHeight)
3255                 {
3256                         AutoResizeRowHeadersWidth (rowHeadersWidthSizeMode);
3257                 }
3258
3259                 [MonoTODO ("Does not use fixedWidth parameter")]
3260                 protected void AutoResizeRows (DataGridViewAutoSizeRowsMode autoSizeRowsMode, bool fixedWidth)
3261                 {
3262                         if (autoSizeRowsMode == DataGridViewAutoSizeRowsMode.None)
3263                                 return;
3264
3265                         bool displayed_only = false;
3266                         DataGridViewAutoSizeRowMode mode = DataGridViewAutoSizeRowMode.AllCells;
3267
3268                         switch (autoSizeRowsMode) {
3269                                 case DataGridViewAutoSizeRowsMode.AllHeaders:
3270                                         mode = DataGridViewAutoSizeRowMode.RowHeader;
3271                                         break;
3272                                 case DataGridViewAutoSizeRowsMode.AllCellsExceptHeaders:
3273                                         mode = DataGridViewAutoSizeRowMode.AllCellsExceptHeader;
3274                                         break;
3275                                 case DataGridViewAutoSizeRowsMode.AllCells:
3276                                         mode = DataGridViewAutoSizeRowMode.AllCells;
3277                                         break;
3278                                 case DataGridViewAutoSizeRowsMode.DisplayedHeaders:
3279                                         mode = DataGridViewAutoSizeRowMode.RowHeader;
3280                                         displayed_only = true;
3281                                         break;
3282                                 case DataGridViewAutoSizeRowsMode.DisplayedCellsExceptHeaders:
3283                                         mode = DataGridViewAutoSizeRowMode.AllCellsExceptHeader;
3284                                         displayed_only = true;
3285                                         break;
3286                                 case DataGridViewAutoSizeRowsMode.DisplayedCells:
3287                                         mode = DataGridViewAutoSizeRowMode.AllCells;
3288                                         displayed_only = true;
3289                                         break;
3290                         }
3291
3292                         foreach (DataGridViewRow row in Rows) {
3293                                 if (!row.Visible)
3294                                         continue;
3295                                 if (!displayed_only || row.Displayed) {
3296                                         int new_height = row.GetPreferredHeight (row.Index, mode, fixedWidth);
3297
3298                                         if (row.Height != new_height)
3299                                                 row.SetAutoSizeHeight (new_height);
3300                                 }
3301                         }
3302                 }
3303
3304                 [MonoTODO ("Does not use fixedMode parameter")]
3305                 protected void AutoResizeRows (int rowIndexStart, int rowsCount, DataGridViewAutoSizeRowMode autoSizeRowMode, bool fixedWidth)
3306                 {
3307                         for (int i = rowIndexStart; i < rowIndexStart + rowsCount; i++)
3308                                 AutoResizeRow (i, autoSizeRowMode, fixedWidth);
3309                 }
3310
3311                 protected void ClearSelection (int columnIndexException, int rowIndexException, bool selectExceptionElement) {
3312                         if (columnIndexException >= columns.Count) {
3313                                 throw new ArgumentOutOfRangeException("ColumnIndexException is greater than the highest column index.");
3314                         }
3315                         if (selectionMode == DataGridViewSelectionMode.FullRowSelect) {
3316                                 if (columnIndexException < -1) {
3317                                         throw new ArgumentOutOfRangeException("ColumnIndexException is less than -1.");
3318                                 }
3319                         }
3320                         else {
3321                                 if (columnIndexException < 0) {
3322                                         throw new ArgumentOutOfRangeException("ColumnIndexException is less than 0.");
3323                                 }
3324                         }
3325                         if (rowIndexException >= rows.Count) {
3326                                 throw new ArgumentOutOfRangeException("RowIndexException is greater than the highest row index.");
3327                         }
3328                         if (selectionMode == DataGridViewSelectionMode.FullColumnSelect) {
3329                                 if (rowIndexException < -1) {
3330                                         throw new ArgumentOutOfRangeException("RowIndexException is less than -1.");
3331                                 }
3332                         }
3333                         else {
3334                                 if (rowIndexException < 0) {
3335                                         throw new ArgumentOutOfRangeException("RowIndexException is less than 0.");
3336                                 }
3337                         }
3338                         switch (selectionMode) {
3339                                 case DataGridViewSelectionMode.FullRowSelect:
3340                                         foreach (DataGridViewRow row in rows) {
3341                                                 if (selectExceptionElement && row.Index == rowIndexException) {
3342                                                         continue;
3343                                                 }
3344                                                 SetSelectedRowCore (row.Index, false);
3345                                         }
3346                                         break;
3347                                 case DataGridViewSelectionMode.FullColumnSelect:
3348                                         foreach (DataGridViewColumn col in columns) {
3349                                                 if (selectExceptionElement && col.Index == columnIndexException) {
3350                                                         continue;
3351                                                 }
3352                                                 SetSelectedColumnCore (col.Index, false);
3353                                         }
3354                                         break;
3355                                 default:
3356                                         foreach (DataGridViewCell cell in SelectedCells) {
3357                                                 if (selectExceptionElement && cell.RowIndex == rowIndexException && cell.ColumnIndex == columnIndexException) {
3358                                                         continue;
3359                                                 }
3360                                                 SetSelectedCellCore (cell.ColumnIndex, cell.RowIndex, false);
3361                                         }
3362                                         break;
3363                         }
3364                 }
3365
3366                 protected override AccessibleObject CreateAccessibilityInstance ()
3367                 {
3368                         return new DataGridViewAccessibleObject(this);
3369                 }
3370
3371                 [EditorBrowsable (EditorBrowsableState.Advanced)]
3372                 protected virtual DataGridViewColumnCollection CreateColumnsInstance ()
3373                 {
3374                         return new DataGridViewColumnCollection(this);
3375                 }
3376
3377                 protected override Control.ControlCollection CreateControlsInstance ()
3378                 {
3379                         return new DataGridViewControlCollection (this);
3380                 }
3381
3382                 [EditorBrowsable (EditorBrowsableState.Advanced)]
3383                 protected virtual DataGridViewRowCollection CreateRowsInstance ()
3384                 {
3385                         return new DataGridViewRowCollection(this);
3386                 }
3387
3388                 protected override void Dispose (bool disposing) {
3389                 }
3390
3391                 protected override AccessibleObject GetAccessibilityObjectById (int objectId)
3392                 {
3393                         throw new NotImplementedException();
3394                 }
3395
3396                 protected override bool IsInputChar (char charCode)
3397                 {
3398                         return true;
3399                 }
3400
3401                 protected override bool IsInputKey (Keys keyData)
3402                 {
3403                         // Don't look at the modifiers
3404                         keyData = keyData & ~Keys.Modifiers;
3405
3406                         switch (keyData) {
3407                                 case Keys.Return:
3408                                 case Keys.PageUp:
3409                                 case Keys.Next:
3410                                 case Keys.End:
3411                                 case Keys.Home:
3412                                 case Keys.Left:
3413                                 case Keys.Up:
3414                                 case Keys.Right:
3415                                 case Keys.Down:
3416                                 case Keys.Delete:
3417                                 case Keys.D0:
3418                                 case Keys.NumPad0:
3419                                 case Keys.F2:
3420                                         return true;
3421                         }
3422
3423                         return false;
3424                 }
3425
3426                 protected virtual void OnAllowUserToAddRowsChanged (EventArgs e)
3427                 {
3428                         EventHandler eh = (EventHandler)(Events [AllowUserToAddRowsChangedEvent]);
3429                         if (eh != null)
3430                                 eh (this, e);
3431                 }
3432
3433                 protected virtual void OnAllowUserToDeleteRowsChanged (EventArgs e)
3434                 {
3435                         EventHandler eh = (EventHandler)(Events [AllowUserToDeleteRowsChangedEvent]);
3436                         if (eh != null)
3437                                 eh (this, e);
3438                 }
3439
3440                 protected virtual void OnAllowUserToOrderColumnsChanged (EventArgs e)
3441                 {
3442                         EventHandler eh = (EventHandler)(Events [AllowUserToOrderColumnsChangedEvent]);
3443                         if (eh != null)
3444                                 eh (this, e);
3445                 }
3446
3447                 protected virtual void OnAllowUserToResizeColumnsChanged (EventArgs e)
3448                 {
3449                         EventHandler eh = (EventHandler)(Events [AllowUserToResizeColumnsChangedEvent]);
3450                         if (eh != null)
3451                                 eh (this, e);
3452                 }
3453
3454                 protected virtual void OnAllowUserToResizeRowsChanged (EventArgs e)
3455                 {
3456                         EventHandler eh = (EventHandler)(Events [AllowUserToResizeRowsChangedEvent]);
3457                         if (eh != null)
3458                                 eh (this, e);
3459                 }
3460
3461                 protected virtual void OnAlternatingRowsDefaultCellStyleChanged (EventArgs e)
3462                 {
3463                         EventHandler eh = (EventHandler)(Events [AlternatingRowsDefaultCellStyleChangedEvent]);
3464                         if (eh != null)
3465                                 eh (this, e);
3466                 }
3467
3468                 protected virtual void OnAutoGenerateColumnsChanged (EventArgs e)
3469                 {
3470                         EventHandler eh = (EventHandler)(Events [AutoGenerateColumnsChangedEvent]);
3471                         if (eh != null)
3472                                 eh (this, e);
3473                 }
3474
3475                 protected internal virtual void OnAutoSizeColumnModeChanged (DataGridViewAutoSizeColumnModeEventArgs e)
3476                 {
3477                         DataGridViewAutoSizeColumnModeEventHandler eh = (DataGridViewAutoSizeColumnModeEventHandler)(Events [AutoSizeColumnModeChangedEvent]);
3478                         if (eh != null)
3479                                 eh (this, e);
3480                 }
3481
3482                 protected virtual void OnAutoSizeColumnsModeChanged (DataGridViewAutoSizeColumnsModeEventArgs e)
3483                 {
3484                         DataGridViewAutoSizeColumnsModeEventHandler eh = (DataGridViewAutoSizeColumnsModeEventHandler)(Events [AutoSizeColumnsModeChangedEvent]);
3485                         if (eh != null)
3486                                 eh (this, e);
3487                 }
3488
3489                 protected virtual void OnAutoSizeRowsModeChanged (DataGridViewAutoSizeModeEventArgs e)
3490                 {
3491                         DataGridViewAutoSizeModeEventHandler eh = (DataGridViewAutoSizeModeEventHandler)(Events [AutoSizeRowsModeChangedEvent]);
3492                         if (eh != null)
3493                                 eh (this, e);
3494                 }
3495
3496                 protected virtual void OnBackgroundColorChanged (EventArgs e)
3497                 {
3498                         EventHandler eh = (EventHandler)(Events [BackgroundColorChangedEvent]);
3499                         if (eh != null)
3500                                 eh (this, e);
3501                 }
3502
3503                 protected override void OnBindingContextChanged (EventArgs e)
3504                 {
3505                         base.OnBindingContextChanged(e);
3506                         ReBind();
3507                 }
3508
3509                 protected virtual void OnBorderStyleChanged (EventArgs e)
3510                 {
3511                         EventHandler eh = (EventHandler)(Events [BorderStyleChangedEvent]);
3512                         if (eh != null)
3513                                 eh (this, e);
3514                 }
3515
3516                 protected virtual void OnCancelRowEdit (QuestionEventArgs e) {
3517                         QuestionEventHandler eh = (QuestionEventHandler)(Events [CancelRowEditEvent]);
3518                         if (eh != null)
3519                                 eh (this, e);
3520                 }
3521
3522                 protected virtual void OnCellBeginEdit (DataGridViewCellCancelEventArgs e)
3523                 {
3524                         DataGridViewCellCancelEventHandler eh = (DataGridViewCellCancelEventHandler)(Events [CellBeginEditEvent]);
3525                         if (eh != null)
3526                                 eh (this, e);
3527                 }
3528
3529                 protected virtual void OnCellBorderStyleChanged (EventArgs e)
3530                 {
3531                         EventHandler eh = (EventHandler)(Events [CellBorderStyleChangedEvent]);
3532                         if (eh != null)
3533                                 eh (this, e);
3534                 }
3535
3536                 protected virtual void OnCellClick (DataGridViewCellEventArgs e)
3537                 {
3538                         DataGridViewCell cell = GetCellInternal (e.ColumnIndex, e.RowIndex);
3539
3540                         cell.OnClickInternal (e);
3541
3542                         DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [CellClickEvent]);
3543                         if (eh != null)
3544                                 eh (this, e);
3545                 }
3546
3547                 protected virtual void OnCellContentClick (DataGridViewCellEventArgs e)
3548                 {
3549                         DataGridViewCell cell = GetCellInternal (e.ColumnIndex, e.RowIndex);
3550
3551                         cell.OnContentClickInternal (e);
3552
3553                         DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [CellContentClickEvent]);
3554                         if (eh != null)
3555                                 eh (this, e);
3556                 }
3557
3558                 protected virtual void OnCellContentDoubleClick (DataGridViewCellEventArgs e)
3559                 {
3560                         DataGridViewCell cell = GetCellInternal (e.ColumnIndex, e.RowIndex);
3561
3562                         cell.OnContentDoubleClickInternal (e);
3563
3564                         DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [CellContentDoubleClickEvent]);
3565                         if (eh != null)
3566                                 eh (this, e);
3567                 }
3568
3569                 protected virtual void OnCellContextMenuStripChanged (DataGridViewCellEventArgs e)
3570                 {
3571                         DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [CellContextMenuStripChangedEvent]);
3572                         if (eh != null)
3573                                 eh (this, e);
3574                 }
3575
3576                 protected virtual void OnCellContextMenuStripNeeded (DataGridViewCellContextMenuStripNeededEventArgs e)
3577                 {
3578                         DataGridViewCellContextMenuStripNeededEventHandler eh = (DataGridViewCellContextMenuStripNeededEventHandler)(Events [CellContextMenuStripNeededEvent]);
3579                         if (eh != null)
3580                                 eh (this, e);
3581                 }
3582
3583                 protected virtual void OnCellDoubleClick (DataGridViewCellEventArgs e)
3584                 {
3585                         DataGridViewCell cell = GetCellInternal (e.ColumnIndex, e.RowIndex);
3586
3587                         cell.OnDoubleClickInternal (e);
3588                         DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [CellDoubleClickEvent]);
3589                         if (eh != null)
3590                                 eh (this, e);
3591                 }
3592
3593                 protected virtual void OnCellEndEdit (DataGridViewCellEventArgs e)
3594                 {
3595                         DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [CellEndEditEvent]);
3596                         if (eh != null)
3597                                 eh (this, e);
3598                 }
3599
3600                 protected virtual void OnCellEnter (DataGridViewCellEventArgs e)
3601                 {
3602                         DataGridViewCell cell = GetCellInternal (e.ColumnIndex, e.RowIndex);
3603                         cell.OnEnterInternal (e.RowIndex, true);
3604
3605                         DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [CellEnterEvent]);
3606                         if (eh != null)
3607                                 eh (this, e);
3608                 }
3609
3610                 protected internal virtual void OnCellErrorTextChanged (DataGridViewCellEventArgs e)
3611                 {
3612                         DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [CellErrorTextChangedEvent]);
3613                         if (eh != null)
3614                                 eh (this, e);
3615                 }
3616
3617                 protected virtual void OnCellErrorTextNeeded (DataGridViewCellErrorTextNeededEventArgs e)
3618                 {
3619                         DataGridViewCellErrorTextNeededEventHandler eh = (DataGridViewCellErrorTextNeededEventHandler)(Events [CellErrorTextNeededEvent]);
3620                         if (eh != null)
3621                                 eh (this, e);
3622                 }
3623
3624                 internal void OnCellFormattingInternal (DataGridViewCellFormattingEventArgs e)
3625                 {
3626                         OnCellFormatting (e);
3627                 }
3628
3629                 protected virtual void OnCellFormatting (DataGridViewCellFormattingEventArgs e)
3630                 {
3631                         DataGridViewCellFormattingEventHandler eh = (DataGridViewCellFormattingEventHandler)(Events [CellFormattingEvent]);
3632                         if (eh != null)
3633                                 eh (this, e);
3634                 }
3635
3636                 protected virtual void OnCellLeave (DataGridViewCellEventArgs e)
3637                 {
3638                         DataGridViewCell cell = GetCellInternal (e.ColumnIndex, e.RowIndex);
3639                         cell.OnLeaveInternal (e.RowIndex, true);
3640
3641                         DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [CellLeaveEvent]);
3642                         if (eh != null)
3643                                 eh (this, e);
3644                 }
3645
3646                 protected virtual void OnCellMouseClick (DataGridViewCellMouseEventArgs e)
3647                 {
3648                         DataGridViewCell cell = GetCellInternal (e.ColumnIndex, e.RowIndex);
3649
3650                         cell.OnMouseClickInternal (e);
3651
3652                         DataGridViewCellMouseEventHandler eh = (DataGridViewCellMouseEventHandler)(Events [CellMouseClickEvent]);
3653                         if (eh != null)
3654                                 eh (this, e);
3655                 }
3656
3657                 protected virtual void OnCellMouseDoubleClick (DataGridViewCellMouseEventArgs e)
3658                 {
3659                         DataGridViewCell cell = GetCellInternal (e.ColumnIndex, e.RowIndex);
3660
3661                         cell.OnMouseDoubleClickInternal (e);
3662
3663                         DataGridViewCellMouseEventHandler eh = (DataGridViewCellMouseEventHandler)(Events [CellMouseDoubleClickEvent]);
3664                         if (eh != null)
3665                                 eh (this, e);
3666                 }
3667
3668                 protected virtual void OnCellMouseDown (DataGridViewCellMouseEventArgs e)
3669                 {
3670
3671                         DataGridViewCell cell = GetCellInternal (e.ColumnIndex, e.RowIndex);
3672
3673                         cell.OnMouseDownInternal (e);
3674
3675                         DataGridViewCellMouseEventHandler eh = (DataGridViewCellMouseEventHandler)(Events [CellMouseDownEvent]);
3676                         if (eh != null)
3677                                 eh (this, e);
3678                 }
3679
3680                 protected virtual void OnCellMouseEnter (DataGridViewCellEventArgs e)
3681                 {
3682                         DataGridViewCell cell = GetCellInternal (e.ColumnIndex, e.RowIndex);
3683
3684                         cell.OnMouseEnterInternal (e.RowIndex);
3685
3686                         DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [CellMouseEnterEvent]);
3687                         if (eh != null)
3688                                 eh (this, e);
3689                 }
3690
3691                 protected virtual void OnCellMouseLeave (DataGridViewCellEventArgs e)
3692                 {
3693                         DataGridViewCell cell = GetCellInternal (e.ColumnIndex, e.RowIndex);
3694
3695                         cell.OnMouseLeaveInternal (e.RowIndex);
3696
3697                         DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [CellMouseLeaveEvent]);
3698                         if (eh != null)
3699                                 eh (this, e);
3700                 }
3701
3702                 protected virtual void OnCellMouseMove (DataGridViewCellMouseEventArgs e)
3703                 {
3704                         DataGridViewCell cell = GetCellInternal (e.ColumnIndex, e.RowIndex);
3705
3706                         cell.OnMouseMoveInternal (e);
3707
3708                         DataGridViewCellMouseEventHandler eh = (DataGridViewCellMouseEventHandler)(Events [CellMouseMoveEvent]);
3709                         if (eh != null)
3710                                 eh (this, e);
3711                 }
3712
3713                 protected virtual void OnCellMouseUp (DataGridViewCellMouseEventArgs e)
3714                 {
3715                         DataGridViewCell cell = GetCellInternal (e.ColumnIndex, e.RowIndex);
3716
3717                         cell.OnMouseUpInternal (e);
3718
3719                         DataGridViewCellMouseEventHandler eh = (DataGridViewCellMouseEventHandler)(Events [CellMouseUpEvent]);
3720                         if (eh != null)
3721                                 eh (this, e);
3722                 }
3723
3724                 internal void OnCellPaintingInternal (DataGridViewCellPaintingEventArgs e)
3725                 {
3726                         OnCellPainting (e);
3727                 }
3728
3729                 protected virtual void OnCellPainting (DataGridViewCellPaintingEventArgs e)
3730                 {
3731                         DataGridViewCellPaintingEventHandler eh = (DataGridViewCellPaintingEventHandler)(Events [CellPaintingEvent]);
3732                         if (eh != null)
3733                                 eh (this, e);
3734                 }
3735
3736                 protected internal virtual void OnCellParsing (DataGridViewCellParsingEventArgs e)
3737                 {
3738                         DataGridViewCellParsingEventHandler eh = (DataGridViewCellParsingEventHandler)(Events [CellParsingEvent]);
3739                         if (eh != null)
3740                                 eh (this, e);
3741                 }
3742
3743                 internal void OnCellStateChangedInternal (DataGridViewCellStateChangedEventArgs e) {
3744                         this.OnCellStateChanged (e);
3745                 }
3746
3747                 protected virtual void OnCellStateChanged (DataGridViewCellStateChangedEventArgs e)
3748                 {
3749                         DataGridViewCellStateChangedEventHandler eh = (DataGridViewCellStateChangedEventHandler)(Events [CellStateChangedEvent]);
3750                         if (eh != null)
3751                                 eh (this, e);
3752                 }
3753
3754                 protected virtual void OnCellStyleChanged (DataGridViewCellEventArgs e)
3755                 {
3756                         DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [CellStyleChangedEvent]);
3757                         if (eh != null)
3758                                 eh (this, e);
3759                 }
3760
3761                 protected virtual void OnCellStyleContentChanged (DataGridViewCellStyleContentChangedEventArgs e) {
3762                         DataGridViewCellStyleContentChangedEventHandler eh = (DataGridViewCellStyleContentChangedEventHandler)(Events [CellStyleContentChangedEvent]);
3763                         if (eh != null)
3764                                 eh (this, e);
3765                 }
3766
3767                 protected virtual void OnCellToolTipTextChanged (DataGridViewCellEventArgs e) {
3768                         DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [CellToolTipTextChangedEvent]);
3769                         if (eh != null)
3770                                 eh (this, e);
3771                 }
3772
3773                 protected virtual void OnCellToolTipTextNeeded (DataGridViewCellToolTipTextNeededEventArgs e)
3774                 {
3775                         DataGridViewCellToolTipTextNeededEventHandler eh = (DataGridViewCellToolTipTextNeededEventHandler)(Events [CellToolTipTextNeededEvent]);
3776                         if (eh != null)
3777                                 eh (this, e);
3778                 }
3779
3780                 protected virtual void OnCellValidated (DataGridViewCellEventArgs e)
3781                 {
3782                         DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [CellValidatedEvent]);
3783                         if (eh != null)
3784                                 eh (this, e);
3785                 }
3786
3787                 protected virtual void OnCellValidating (DataGridViewCellValidatingEventArgs e)
3788                 {
3789                         DataGridViewCellValidatingEventHandler eh = (DataGridViewCellValidatingEventHandler)(Events [CellValidatingEvent]);
3790                         if (eh != null)
3791                                 eh (this, e);
3792                 }
3793
3794                 protected virtual void OnCellValueChanged (DataGridViewCellEventArgs e)
3795                 {
3796                         DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [CellValueChangedEvent]);
3797                         if (eh != null)
3798                                 eh (this, e);
3799                 }
3800
3801                 protected internal virtual void OnCellValueNeeded (DataGridViewCellValueEventArgs e)
3802                 {
3803                         DataGridViewCellValueEventHandler eh = (DataGridViewCellValueEventHandler)(Events [CellValueNeededEvent]);
3804                         if (eh != null)
3805                                 eh (this, e);
3806                 }
3807
3808                 protected internal virtual void OnCellValuePushed (DataGridViewCellValueEventArgs e)
3809                 {
3810                         DataGridViewCellValueEventHandler eh = (DataGridViewCellValueEventHandler)(Events [CellValuePushedEvent]);
3811                         if (eh != null)
3812                                 eh (this, e);
3813                 }
3814
3815                 internal void OnColumnAddedInternal (DataGridViewColumnEventArgs e)
3816                 {
3817                         e.Column.DataColumnIndex = FindDataColumnIndex (e.Column);
3818
3819                         if (e.Column.CellTemplate != null) {
3820                                 // The first column has just been added programatically instead of
3821                                 // autogenerated so we need to create the rows for the first time.
3822                                 //
3823                                 if (!is_autogenerating_columns && columns.Count == 1)
3824                                         ReBind ();
3825
3826                                 // Add/Remove/Update the cells in the existing rows
3827                                 foreach (DataGridViewRow row in Rows) {
3828                                         if (row.Index == NewRowIndex)
3829                                                 continue;
3830
3831                                         DataGridViewCell newCell = (DataGridViewCell)e.Column.CellTemplate.Clone ();
3832                                         if (row.Cells.Count == columns.Count) {
3833                                                 DataGridViewCell oldCell = row.Cells[e.Column.Index];
3834                                                 if (currentCell != null && oldCell == currentCell)
3835                                                         currentCell = newCell;
3836                                                 // copy the value only if the cell is not-databound
3837                                                 if (!e.Column.IsDataBound && oldCell.OwningRow.DataBoundItem == null)
3838                                                         newCell.Value = oldCell.Value;
3839                                                 row.Cells.Replace (e.Column.Index, newCell);
3840                                         } else if (e.Column.Index >= row.Cells.Count)
3841                                                 row.Cells.Add (newCell);
3842                                         else
3843                                                 row.Cells.Insert (e.Column.Index, newCell);
3844                                 }
3845                         }
3846
3847                         AutoResizeColumnsInternal ();
3848                         OnColumnAdded (e);
3849                         PrepareEditingRow (false, true);
3850                 }
3851
3852                 private int FindDataColumnIndex (DataGridViewColumn column)
3853                 {
3854                         if (column != null && DataManager != null) {
3855                                 PropertyDescriptorCollection properties = DataManager.GetItemProperties();
3856                                 for (int i = 0; i < properties.Count; i++) {
3857                                         if (String.Compare (column.DataPropertyName, properties[i].Name, true) == 0)
3858                                                 return i;
3859                                 }
3860                         }
3861
3862                         return -1;
3863                 }
3864
3865                 protected virtual void OnColumnAdded (DataGridViewColumnEventArgs e)
3866                 {
3867                         DataGridViewColumnEventHandler eh = (DataGridViewColumnEventHandler)(Events [ColumnAddedEvent]);
3868                         if (eh != null)
3869                                 eh (this, e);
3870                 }
3871
3872                 protected internal virtual void OnColumnContextMenuStripChanged (DataGridViewColumnEventArgs e)
3873                 {
3874                         DataGridViewColumnEventHandler eh = (DataGridViewColumnEventHandler)(Events [ColumnContextMenuStripChangedEvent]);
3875                         if (eh != null)
3876                                 eh (this, e);
3877                 }
3878
3879                 protected internal virtual void OnColumnDataPropertyNameChanged (DataGridViewColumnEventArgs e)
3880                 {
3881                         DataGridViewColumnEventHandler eh = (DataGridViewColumnEventHandler)(Events [ColumnDataPropertyNameChangedEvent]);
3882                         if (eh != null)
3883                                 eh (this, e);
3884                 }
3885
3886                 protected internal virtual void OnColumnDefaultCellStyleChanged (DataGridViewColumnEventArgs e)
3887                 {
3888                         DataGridViewColumnEventHandler eh = (DataGridViewColumnEventHandler)(Events [ColumnDefaultCellStyleChangedEvent]);
3889                         if (eh != null)
3890                                 eh (this, e);
3891                 }
3892
3893                 protected internal virtual void OnColumnDisplayIndexChanged (DataGridViewColumnEventArgs e)
3894                 {
3895                         DataGridViewColumnEventHandler eh = (DataGridViewColumnEventHandler)(Events [ColumnDisplayIndexChangedEvent]);
3896                         if (eh != null)
3897                                 eh (this, e);
3898                 }
3899
3900                 protected virtual void OnColumnDividerDoubleClick (DataGridViewColumnDividerDoubleClickEventArgs e)
3901                 {
3902                         DataGridViewColumnDividerDoubleClickEventHandler eh = (DataGridViewColumnDividerDoubleClickEventHandler)(Events [ColumnDividerDoubleClickEvent]);
3903                         if (eh != null)
3904                                 eh (this, e);
3905                 }
3906
3907                 protected internal virtual void OnColumnDividerWidthChanged (DataGridViewColumnEventArgs e)
3908                 {
3909                         DataGridViewColumnEventHandler eh = (DataGridViewColumnEventHandler)(Events [ColumnDividerWidthChangedEvent]);
3910                         if (eh != null)
3911                                 eh (this, e);
3912                 }
3913
3914                 protected internal virtual void OnColumnHeaderCellChanged (DataGridViewColumnEventArgs e)
3915                 {
3916                         DataGridViewColumnEventHandler eh = (DataGridViewColumnEventHandler)(Events [ColumnHeaderCellChangedEvent]);
3917                         if (eh != null)
3918                                 eh (this, e);
3919                 }
3920
3921                 protected virtual void OnColumnHeaderMouseClick (DataGridViewCellMouseEventArgs e)
3922                 {
3923                         DataGridViewColumn col = Columns[e.ColumnIndex];
3924
3925                         if (col.SortMode == DataGridViewColumnSortMode.Automatic) {
3926                                 ListSortDirection new_order;
3927
3928                                 // Always use ascending unless we are clicking on a
3929                                 // column that is already sorted ascending.
3930                                 if (SortedColumn != col || sortOrder != SortOrder.Ascending)
3931                                         new_order = ListSortDirection.Ascending;
3932                                 else
3933                                         new_order = ListSortDirection.Descending;
3934
3935                                 Sort (col, new_order);
3936                         }
3937
3938                         DataGridViewCellMouseEventHandler eh = (DataGridViewCellMouseEventHandler)(Events [ColumnHeaderMouseClickEvent]);
3939                         if (eh != null)
3940                                 eh (this, e);
3941                 }
3942
3943                 protected virtual void OnColumnHeaderMouseDoubleClick (DataGridViewCellMouseEventArgs e)
3944                 {
3945                         DataGridViewCellMouseEventHandler eh = (DataGridViewCellMouseEventHandler)(Events [ColumnHeaderMouseDoubleClickEvent]);
3946                         if (eh != null)
3947                                 eh (this, e);
3948                 }
3949
3950                 protected virtual void OnColumnHeadersBorderStyleChanged (EventArgs e)
3951                 {
3952                         EventHandler eh = (EventHandler)(Events [ColumnHeadersBorderStyleChangedEvent]);
3953                         if (eh != null)
3954                                 eh (this, e);
3955                 }
3956
3957                 protected virtual void OnColumnHeadersDefaultCellStyleChanged (EventArgs e)
3958                 {
3959                         EventHandler eh = (EventHandler)(Events [ColumnHeadersDefaultCellStyleChangedEvent]);
3960                         if (eh != null)
3961                                 eh (this, e);
3962                 }
3963
3964                 protected virtual void OnColumnHeadersHeightChanged (EventArgs e)
3965                 {
3966                         EventHandler eh = (EventHandler)(Events [ColumnHeadersHeightChangedEvent]);
3967                         if (eh != null)
3968                                 eh (this, e);
3969                 }
3970
3971                 protected virtual void OnColumnHeadersHeightSizeModeChanged (DataGridViewAutoSizeModeEventArgs e)
3972                 {
3973                         DataGridViewAutoSizeModeEventHandler eh = (DataGridViewAutoSizeModeEventHandler)(Events [ColumnHeadersHeightSizeModeChangedEvent]);
3974                         if (eh != null)
3975                                 eh (this, e);
3976                 }
3977
3978                 protected internal virtual void OnColumnMinimumWidthChanged (DataGridViewColumnEventArgs e)
3979                 {
3980                         DataGridViewColumnEventHandler eh = (DataGridViewColumnEventHandler)(Events [ColumnMinimumWidthChangedEvent]);
3981                         if (eh != null)
3982                                 eh (this, e);
3983                 }
3984
3985                 protected internal virtual void OnColumnNameChanged (DataGridViewColumnEventArgs e)
3986                 {
3987                         DataGridViewColumnEventHandler eh = (DataGridViewColumnEventHandler)(Events [ColumnNameChangedEvent]);
3988                         if (eh != null)
3989                                 eh (this, e);
3990                 }
3991
3992                 internal void OnColumnPreRemovedInternal (DataGridViewColumnEventArgs e)
3993                 {
3994                         // The removed column should be removed from the selection too.
3995                         if (selected_columns != null)
3996                                 SetSelectedColumnCore (e.Column.Index, false);
3997
3998                         if (Columns.Count - 1 == 0) {
3999                                 MoveCurrentCell (-1, -1, true, false, false, true);
4000                                 rows.ClearInternal ();
4001                         } else if (currentCell != null && CurrentCell.ColumnIndex == e.Column.Index) {
4002                                 int nextColumnIndex = e.Column.Index;
4003                                 if (nextColumnIndex >= Columns.Count - 1)
4004                                         nextColumnIndex = Columns.Count - 1 - 1;
4005                                 MoveCurrentCell (nextColumnIndex, currentCell.RowIndex, true, false, false, true);
4006                                 if (hover_cell != null && hover_cell.ColumnIndex >= e.Column.Index)
4007                                         hover_cell = null;
4008                         }
4009                 }
4010
4011                 private void OnColumnPostRemovedInternal (DataGridViewColumnEventArgs e)
4012                 {
4013                         if (e.Column.CellTemplate != null) {
4014                                 int index = e.Column.Index;
4015
4016                                 foreach (DataGridViewRow row in Rows)
4017                                         row.Cells.RemoveAt (index);
4018                         }
4019
4020                         AutoResizeColumnsInternal ();
4021                         PrepareEditingRow (false, true);
4022
4023                         OnColumnRemoved (e);
4024                 }
4025
4026                 protected virtual void OnColumnRemoved (DataGridViewColumnEventArgs e)
4027                 {
4028                         DataGridViewColumnEventHandler eh = (DataGridViewColumnEventHandler)(Events [ColumnRemovedEvent]);
4029                         if (eh != null)
4030                                 eh (this, e);
4031                 }
4032
4033                 protected internal virtual void OnColumnSortModeChanged (DataGridViewColumnEventArgs e)
4034                 {
4035                         DataGridViewColumnEventHandler eh = (DataGridViewColumnEventHandler)(Events [ColumnSortModeChangedEvent]);
4036                         if (eh != null)
4037                                 eh (this, e);
4038                 }
4039
4040                 protected internal virtual void OnColumnStateChanged (DataGridViewColumnStateChangedEventArgs e)
4041                 {
4042                         DataGridViewColumnStateChangedEventHandler eh = (DataGridViewColumnStateChangedEventHandler)(Events [ColumnStateChangedEvent]);
4043                         if (eh != null)
4044                                 eh (this, e);
4045                 }
4046
4047                 protected internal virtual void OnColumnToolTipTextChanged (DataGridViewColumnEventArgs e)
4048                 {
4049                         DataGridViewColumnEventHandler eh = (DataGridViewColumnEventHandler)(Events [ColumnToolTipTextChangedEvent]);
4050                         if (eh != null)
4051                                 eh (this, e);
4052                 }
4053
4054                 protected internal virtual void OnColumnWidthChanged (DataGridViewColumnEventArgs e)
4055                 {
4056                         DataGridViewColumnEventHandler eh = (DataGridViewColumnEventHandler)(Events [ColumnWidthChangedEvent]);
4057                         if (eh != null)
4058                                 eh (this, e);
4059                 }
4060
4061                 protected virtual void OnCurrentCellChanged (EventArgs e)
4062                 {
4063                         EventHandler eh = (EventHandler)(Events [CurrentCellChangedEvent]);
4064                         if (eh != null)
4065                                 eh (this, e);
4066                 }
4067
4068                 protected virtual void OnCurrentCellDirtyStateChanged (EventArgs e)
4069                 {
4070                         EventHandler eh = (EventHandler)(Events [CurrentCellDirtyStateChangedEvent]);
4071                         if (eh != null)
4072                                 eh (this, e);
4073                 }
4074
4075                 protected override void OnCursorChanged (EventArgs e)
4076                 {
4077                         base.OnCursorChanged (e);
4078                 }
4079
4080                 protected virtual void OnDataBindingComplete (DataGridViewBindingCompleteEventArgs e)
4081                 {
4082                         DataGridViewBindingCompleteEventHandler eh = (DataGridViewBindingCompleteEventHandler)(Events [DataBindingCompleteEvent]);
4083                         if (eh != null)
4084                                 eh (this, e);
4085                 }
4086
4087                 protected virtual void OnDataError (bool displayErrorDialogIfNoHandler, DataGridViewDataErrorEventArgs e)
4088                 {
4089                         DataGridViewDataErrorEventHandler eh = (DataGridViewDataErrorEventHandler)(Events [DataErrorEvent]);
4090
4091                         if (eh != null)
4092                                 eh (this, e);
4093                         else if (displayErrorDialogIfNoHandler)
4094                                 MessageBox.Show (e.ToString ());
4095                 }
4096                 protected virtual void OnDataMemberChanged (EventArgs e) {
4097                         EventHandler eh = (EventHandler)(Events [DataMemberChangedEvent]);
4098                         if (eh != null)
4099                                 eh (this, e);
4100                 }
4101
4102                 protected virtual void OnDataSourceChanged (EventArgs e) {
4103                         EventHandler eh = (EventHandler)(Events [DataSourceChangedEvent]);
4104                         if (eh != null)
4105                                 eh (this, e);
4106                 }
4107
4108                 protected virtual void OnDefaultCellStyleChanged (EventArgs e) {
4109                         EventHandler eh = (EventHandler)(Events [DefaultCellStyleChangedEvent]);
4110                         if (eh != null)
4111                                 eh (this, e);
4112                 }
4113
4114                 protected virtual void OnDefaultValuesNeeded (DataGridViewRowEventArgs e) {
4115                         DataGridViewRowEventHandler eh = (DataGridViewRowEventHandler)(Events [DefaultValuesNeededEvent]);
4116                         if (eh != null)
4117                                 eh (this, e);
4118                 }
4119
4120                 protected override void OnDoubleClick (EventArgs e) {
4121                         base.OnDoubleClick(e);
4122
4123                         Point mouseLocation = this.PointToClient (Control.MousePosition);
4124                         HitTestInfo hitInfo = HitTest (mouseLocation.X, mouseLocation.Y);
4125                         if (hitInfo.Type == DataGridViewHitTestType.Cell)
4126                                 OnCellDoubleClick (new DataGridViewCellEventArgs (hitInfo.ColumnIndex, hitInfo.RowIndex));
4127                 }
4128
4129                 protected virtual void OnEditingControlShowing (DataGridViewEditingControlShowingEventArgs e) {
4130                         DataGridViewEditingControlShowingEventHandler eh = (DataGridViewEditingControlShowingEventHandler)(Events [EditingControlShowingEvent]);
4131                         if (eh != null)
4132                                 eh (this, e);
4133                 }
4134
4135                 protected virtual void OnEditModeChanged (EventArgs e)
4136                 {
4137                         EventHandler eh = (EventHandler)(Events [EditModeChangedEvent]);
4138                         if (eh != null)
4139                                 eh (this, e);
4140                 }
4141
4142                 protected override void OnEnabledChanged (EventArgs e)
4143                 {
4144                         base.OnEnabledChanged(e);
4145                 }
4146
4147                 protected override void OnEnter (EventArgs e )
4148                 {
4149                         base.OnEnter(e);
4150                 }
4151
4152                 protected override void OnGotFocus(EventArgs e)
4153                 {
4154                         base.OnGotFocus (e);
4155
4156                         // To add focus rectangle if needed
4157                         if (currentCell != null && ShowFocusCues)
4158                                 InvalidateCell (currentCell);
4159                 }
4160
4161                 protected override void OnFontChanged (EventArgs e)
4162                 {
4163                         base.OnFontChanged(e);
4164                 }
4165
4166                 protected override void OnForeColorChanged (EventArgs e)
4167                 {
4168                         base.OnForeColorChanged(e);
4169                 }
4170
4171                 protected virtual void OnGridColorChanged (EventArgs e)
4172                 {
4173                         EventHandler eh = (EventHandler)(Events [GridColorChangedEvent]);
4174                         if (eh != null)
4175                                 eh (this, e);
4176                 }
4177
4178                 protected override void OnHandleCreated (EventArgs e)
4179                 {
4180                         base.OnHandleCreated(e);
4181                         ReBind ();
4182
4183                         if (DataManager == null && CurrentCell == null && Rows.Count > 0 && Columns.Count > 0)
4184                                 MoveCurrentCell (ColumnDisplayIndexToIndex (0), 0, true, false, false, false);
4185                 }
4186
4187                 protected override void OnHandleDestroyed(EventArgs e)
4188                 {
4189                         base.OnHandleDestroyed (e);
4190                 }
4191
4192                 [EditorBrowsable (EditorBrowsableState.Advanced)]
4193                 protected override void OnKeyDown (KeyEventArgs e)
4194                 {
4195                         base.OnKeyDown (e);
4196
4197                         e.Handled = ProcessDataGridViewKey (e);
4198                 }
4199
4200                 [EditorBrowsable (EditorBrowsableState.Advanced)]
4201                 protected override void OnKeyPress (KeyPressEventArgs e)
4202                 {
4203                         base.OnKeyPress(e);
4204                 }
4205
4206                 [EditorBrowsable (EditorBrowsableState.Advanced)]
4207                 protected override void OnKeyUp (KeyEventArgs e)
4208                 {
4209                         base.OnKeyUp(e);
4210                 }
4211
4212                 protected override void OnLayout (LayoutEventArgs e)
4213                 {
4214                         if (horizontalScrollBar.Visible && verticalScrollBar.Visible) {
4215                                 horizontalScrollBar.Bounds = new Rectangle (BorderWidth, Height - BorderWidth - horizontalScrollBar.Height, Width - (2 * BorderWidth) - verticalScrollBar.Width, horizontalScrollBar.Height);
4216                                 verticalScrollBar.Bounds = new Rectangle (Width - BorderWidth - verticalScrollBar.Width, BorderWidth, verticalScrollBar.Width, Height - (2 * BorderWidth) - horizontalScrollBar.Height);
4217                         } else if (horizontalScrollBar.Visible)
4218                                 horizontalScrollBar.Bounds = new Rectangle (BorderWidth, Height - BorderWidth - horizontalScrollBar.Height, Width - (2 * BorderWidth), horizontalScrollBar.Height);
4219                         else if (verticalScrollBar.Visible)
4220                                 verticalScrollBar.Bounds = new Rectangle (Width - BorderWidth - verticalScrollBar.Width, BorderWidth, verticalScrollBar.Width,  Height - (2 * BorderWidth));
4221
4222                         AutoResizeColumnsInternal ();
4223                         Invalidate ();
4224                 }
4225
4226                 protected override void OnLeave (EventArgs e)
4227                 {
4228                         EndEdit (DataGridViewDataErrorContexts.LeaveControl);
4229                         base.OnLeave(e);
4230                 }
4231
4232                 protected override void OnLostFocus(EventArgs e)
4233                 {
4234                         base.OnLostFocus (e);
4235
4236                         // To remove focus rectangle if needed
4237                         if (currentCell != null && ShowFocusCues)
4238                                 InvalidateCell (currentCell);
4239                 }
4240
4241                 protected override void OnMouseClick (MouseEventArgs e)
4242                 {
4243                         base.OnMouseClick(e);
4244
4245                         if (column_resize_active || row_resize_active)
4246                                 return;
4247
4248                         //Console.WriteLine("Mouse: Clicks: {0}; Delta: {1}; X: {2}; Y: {3};", e.Clicks, e.Delta, e.X, e.Y);
4249                         HitTestInfo hit = HitTest (e.X, e.Y);
4250
4251                         switch (hit.Type) {
4252                                 case DataGridViewHitTestType.Cell:
4253                                         Rectangle display = GetCellDisplayRectangle (hit.ColumnIndex, hit.RowIndex, false);
4254                                         Point cellpoint = new Point (e.X - display.X, e.Y - display.Y);
4255
4256                                         OnCellMouseClick (new DataGridViewCellMouseEventArgs (hit.ColumnIndex, hit.RowIndex, cellpoint.X, cellpoint.Y, e));
4257
4258                                         DataGridViewCell cell = GetCellInternal (hit.ColumnIndex, hit.RowIndex);
4259
4260                                         if (cell.GetContentBounds (hit.RowIndex).Contains (cellpoint)) {
4261                                                 DataGridViewCellEventArgs dgvcea = new DataGridViewCellEventArgs (hit.ColumnIndex, hit.RowIndex);
4262                                                 OnCellContentClick (dgvcea);
4263                                         }
4264
4265                                         break;
4266                                 case DataGridViewHitTestType.ColumnHeader:
4267                                         Rectangle display2 = GetCellDisplayRectangle (hit.ColumnIndex, hit.RowIndex, false);
4268                                         Point cellpoint2 = new Point (e.X - display2.X, e.Y - display2.Y);
4269
4270                                         OnColumnHeaderMouseClick (new DataGridViewCellMouseEventArgs (hit.ColumnIndex, hit.RowIndex, cellpoint2.X, cellpoint2.Y, e));
4271                                         break;
4272                         }
4273                 }
4274
4275                 protected override void OnMouseDoubleClick (MouseEventArgs e)
4276                 {
4277                         base.OnMouseDoubleClick(e);
4278
4279                         HitTestInfo hitInfo = HitTest (e.X, e.Y);
4280                         if (hitInfo.Type == DataGridViewHitTestType.Cell)
4281                                 OnCellMouseDoubleClick (new DataGridViewCellMouseEventArgs (hitInfo.ColumnIndex, hitInfo.RowIndex,
4282                                                                                             hitInfo.ColumnX, hitInfo.RowY, e));
4283                 }
4284
4285                 private void DoSelectionOnMouseDown (HitTestInfo hitTest)
4286                 {
4287                         Keys modifiers = Control.ModifierKeys;
4288                         bool isControl = (modifiers & Keys.Control) != 0;
4289                         bool isShift = (modifiers & Keys.Shift) != 0;
4290                         //bool isRowHeader = hitTest.Type == DataGridViewHitTestType.RowHeader;
4291                         //bool isColHeader = hitTest.Type == DataGridViewHitTestType.ColumnHeader;
4292                         DataGridViewSelectionMode mode;
4293
4294                         switch (hitTest.Type) {
4295                         case DataGridViewHitTestType.Cell:
4296                                 mode = selectionMode;
4297                                 break;
4298                         case DataGridViewHitTestType.ColumnHeader:
4299                                 mode = selectionMode == DataGridViewSelectionMode.ColumnHeaderSelect ? DataGridViewSelectionMode.FullColumnSelect : selectionMode;
4300
4301                                 if (mode != DataGridViewSelectionMode.FullColumnSelect)
4302                                         return;
4303                                 break;
4304                         case DataGridViewHitTestType.RowHeader:
4305                                 mode = selectionMode == DataGridViewSelectionMode.RowHeaderSelect ?  DataGridViewSelectionMode.FullRowSelect : selectionMode;
4306
4307                                 if (mode != DataGridViewSelectionMode.FullRowSelect)
4308                                         return;
4309                                 break; // Handled below
4310                         default:
4311                                 return;
4312                         }
4313
4314                         if (!isControl) {
4315                                 // If SHIFT is pressed:
4316                                 //      Select all from selected_row/column/cell to current row/column/cell, unselect everything else
4317                                 // otherwise:
4318                                 //      Unselect all rows/columns/cells, select the clicked one
4319                                 int min_row, max_row;
4320                                 int min_col, max_col;
4321                                 if (!isShift) {
4322                                         selected_row = hitTest.RowIndex;
4323                                         selected_column = hitTest.ColumnIndex;
4324                                 }
4325                                 if (!isShift) {
4326                                         if (selected_row != -1)
4327                                                 selected_row = hitTest.RowIndex;
4328                                         if (selected_column != -1)
4329                                                 selected_column = hitTest.ColumnIndex;
4330                                 }
4331                                 if (selected_row >= hitTest.RowIndex) {
4332                                         min_row = hitTest.RowIndex;
4333                                         max_row = isShift ? selected_row : min_row;
4334                                 } else {
4335                                         max_row = hitTest.RowIndex;
4336                                         min_row = isShift ? selected_row : max_row;
4337                                 }
4338                                 if (selected_column >= hitTest.ColumnIndex) {
4339                                         min_col = hitTest.ColumnIndex;
4340                                         max_col = isShift ? selected_column : min_col;
4341                                 } else {
4342                                         max_col = hitTest.ColumnIndex;
4343                                         min_col = isShift ? selected_column : max_col;
4344                                 }
4345
4346                                 switch (mode) {
4347                                 case DataGridViewSelectionMode.FullRowSelect:
4348                                         for (int i = 0; i < RowCount; i++) {
4349                                                 bool select = i >= min_row && i <= max_row;
4350                                                 if (!select) {
4351                                                         for (int c = 0; c < ColumnCount; c++) {
4352                                                                 if (Rows [i].Cells [c].Selected) {
4353                                                                         SetSelectedCellCore (c, i, false);
4354                                                                 }
4355                                                         }
4356                                                 }
4357                                                 if (select != Rows [i].Selected) {
4358                                                         SetSelectedRowCore (i, select);
4359                                                 }
4360                                         }
4361                                         break;
4362                                 case DataGridViewSelectionMode.FullColumnSelect:
4363                                         for (int i = 0; i < ColumnCount; i++) {
4364                                                 bool select = i >= min_col && i <= max_col;
4365                                                 if (!select) {
4366                                                         for (int r = 0; r < RowCount; r++) {
4367                                                                 if (Rows [r].Cells [i].Selected) {
4368                                                                         SetSelectedCellCore (i, r, false);
4369                                                                 }
4370                                                         }
4371                                                 }
4372                                                 if (select != Columns [i].Selected) {
4373                                                         SetSelectedColumnCore (i, select);
4374                                                 }
4375                                         }
4376                                         break;
4377                                 case DataGridViewSelectionMode.ColumnHeaderSelect:
4378                                 case DataGridViewSelectionMode.RowHeaderSelect:
4379                                         //break;
4380                                 case DataGridViewSelectionMode.CellSelect:
4381                                         if (!isShift) {
4382                                                 for (int c = 0; c < ColumnCount; c++) {
4383                                                         if (columns [c].Selected)
4384                                                                 SetSelectedColumnCore (c, false);
4385                                                 }
4386
4387                                                 for (int r = 0; r < RowCount; r++) {
4388                                                         if (rows [r].Selected)
4389                                                                 SetSelectedRowCore (r, false);
4390                                                 }
4391                                         }
4392                                         for (int r = 0; r < RowCount; r++) {
4393                                                 for (int c = 0; c < ColumnCount; c++) {
4394                                                         bool select = (r >= min_row && r <= max_row) && (c >= min_col && c <= max_col);
4395                                                         if (select != Rows [r].Cells [c].Selected)
4396                                                                 SetSelectedCellCore (c, r, select);
4397                                                 }
4398                                         }
4399                                         break;
4400                                 }
4401
4402                         } else if (isControl) {
4403                                 // Switch the selected state of the row.
4404                                 switch (mode) {
4405                                 case DataGridViewSelectionMode.FullRowSelect:
4406                                         SetSelectedRowCore (hitTest.RowIndex, !rows [hitTest.RowIndex].Selected);
4407                                         break;
4408                                 case DataGridViewSelectionMode.FullColumnSelect:
4409                                         SetSelectedColumnCore (hitTest.ColumnIndex, !columns [hitTest.ColumnIndex].Selected);
4410                                         break;
4411                                 case DataGridViewSelectionMode.ColumnHeaderSelect:
4412                                 case DataGridViewSelectionMode.RowHeaderSelect:
4413                                         //break;
4414                                 case DataGridViewSelectionMode.CellSelect:
4415                                         if (hitTest.ColumnIndex >= 0 && hitTest.RowIndex >= 0) {
4416                                                 SetSelectedCellCore (hitTest.ColumnIndex, hitTest.RowIndex, !Rows [hitTest.RowIndex].Cells [hitTest.ColumnIndex].Selected);
4417                                         }
4418                                         break;
4419                                 }
4420                         }
4421
4422                 }
4423
4424                 protected override void OnMouseDown (MouseEventArgs e)
4425                 {
4426                         base.OnMouseDown(e);
4427
4428                         if (!EndEdit ())
4429                                 return;
4430
4431                         HitTestInfo hitTest = HitTest(e.X, e.Y);
4432
4433                         DataGridViewCell cell = null;
4434                         DataGridViewRow row = null;
4435                         Rectangle cellBounds;
4436
4437                         if ((hitTest.Type == DataGridViewHitTestType.ColumnHeader ||
4438                              (hitTest.Type == DataGridViewHitTestType.Cell && !ColumnHeadersVisible))
4439                             && MouseOverColumnResize (hitTest.ColumnIndex, e.X)) {
4440                                 if (e.Clicks == 2) {
4441                                         AutoResizeColumn (hitTest.ColumnIndex);
4442                                         return;
4443                                 }
4444
4445                                 resize_band = hitTest.ColumnIndex;
4446                                 column_resize_active = true;
4447                                 resize_band_start = e.X;
4448                                 resize_band_delta = 0;
4449                                 DrawVerticalResizeLine (resize_band_start);
4450                                 return;
4451                         }
4452
4453                         if ((hitTest.Type == DataGridViewHitTestType.RowHeader ||
4454                              (hitTest.Type == DataGridViewHitTestType.Cell && !RowHeadersVisible))
4455                             && MouseOverRowResize (hitTest.RowIndex, e.Y)) {
4456                                 if (e.Clicks == 2) {
4457                                         AutoResizeRow (hitTest.RowIndex);
4458                                         return;
4459                                 }
4460
4461                                 resize_band = hitTest.RowIndex;
4462                                 row_resize_active = true;
4463                                 resize_band_start = e.Y;
4464                                 resize_band_delta = 0;
4465                                 DrawHorizontalResizeLine (resize_band_start);
4466                                 return;
4467                         }
4468
4469                         if (hitTest.Type == DataGridViewHitTestType.Cell) {
4470                                 row = rows [hitTest.RowIndex];
4471                                 cell = row.Cells [hitTest.ColumnIndex];
4472                                 SetCurrentCellAddressCore (cell.ColumnIndex, cell.RowIndex, false, true, true);
4473                                 cellBounds = GetCellDisplayRectangle (hitTest.ColumnIndex, hitTest.RowIndex, false);
4474                                 OnCellMouseDown (new DataGridViewCellMouseEventArgs (hitTest.ColumnIndex, hitTest.RowIndex, e.X - cellBounds.X, e.Y - cellBounds.Y, e));
4475                                 OnCellClick (new DataGridViewCellEventArgs (hitTest.ColumnIndex, hitTest.RowIndex));
4476                         }
4477
4478                         DoSelectionOnMouseDown (hitTest);
4479
4480                         if (hitTest.Type != DataGridViewHitTestType.Cell) {
4481                                 if (hitTest.Type == DataGridViewHitTestType.ColumnHeader)
4482                                         pressed_header_cell = columns [hitTest.ColumnIndex].HeaderCell;
4483                                 else if (hitTest.Type == DataGridViewHitTestType.RowHeader)
4484                                         pressed_header_cell = rows [hitTest.RowIndex].HeaderCell;
4485                                 Invalidate ();
4486                                 return;
4487                         }
4488
4489                         Invalidate();
4490                         return;
4491                 }
4492
4493                 private void UpdateBindingPosition (int position)
4494                 {
4495                         if (DataManager != null)
4496                                 DataManager.Position = position;
4497                 }
4498
4499                 protected override void OnMouseEnter (EventArgs e)
4500                 {
4501                         base.OnMouseEnter(e);
4502                 }
4503
4504                 protected override void OnMouseLeave (EventArgs e)
4505                 {
4506                         base.OnMouseLeave (e);
4507
4508                         if (hover_cell != null) {
4509                                 OnCellMouseLeave (new DataGridViewCellEventArgs (hover_cell.ColumnIndex, hover_cell.RowIndex));
4510                                 hover_cell = null;
4511                         }
4512
4513                         EnteredHeaderCell = null;
4514                 }
4515
4516                 protected override void OnMouseMove (MouseEventArgs e)
4517                 {
4518                         base.OnMouseMove (e);
4519
4520                         if (column_resize_active) {
4521                                 // Erase the old line
4522                                 DrawVerticalResizeLine (resize_band_start + resize_band_delta);
4523
4524                                 resize_band_delta = e.X - resize_band_start;
4525
4526                                 // Draw the new line
4527                                 DrawVerticalResizeLine (resize_band_start + resize_band_delta);
4528                                 return;
4529                         }
4530
4531                         if (row_resize_active) {
4532                                 // Erase the old line
4533                                 DrawHorizontalResizeLine (resize_band_start + resize_band_delta);
4534
4535                                 resize_band_delta = e.Y - resize_band_start;
4536
4537                                 // Draw the new line
4538                                 DrawHorizontalResizeLine (resize_band_start + resize_band_delta);
4539                                 return;
4540                         }
4541
4542                         Cursor new_cursor = Cursors.Default;
4543                         HitTestInfo hit = this.HitTest (e.X, e.Y);
4544
4545                         if (hit.Type == DataGridViewHitTestType.ColumnHeader ||
4546                             (!ColumnHeadersVisible && hit.Type == DataGridViewHitTestType.Cell && MouseOverColumnResize (hit.ColumnIndex, e.X))) {
4547                                 EnteredHeaderCell = Columns [hit.ColumnIndex].HeaderCell;
4548                                 if (MouseOverColumnResize (hit.ColumnIndex, e.X))
4549                                         new_cursor = Cursors.VSplit;
4550                         } else if (!RowHeadersVisible && hit.Type == DataGridViewHitTestType.Cell && MouseOverRowResize (hit.RowIndex, e.Y)) {
4551                                 EnteredHeaderCell = Rows[hit.RowIndex].HeaderCell;
4552                                 new_cursor = Cursors.HSplit;
4553                         } else if (hit.Type == DataGridViewHitTestType.Cell) {
4554                                 EnteredHeaderCell = null;
4555
4556                                 DataGridViewCell new_cell = GetCellInternal (hit.ColumnIndex, hit.RowIndex);
4557
4558                                 // Check if we have moved into an error icon area
4559                                 Rectangle icon = new_cell.ErrorIconBounds;
4560
4561                                 if (!icon.IsEmpty) {
4562                                         Point loc = GetCellDisplayRectangle (hit.ColumnIndex, hit.RowIndex, false).Location;
4563
4564                                         icon.X += loc.X;
4565                                         icon.Y += loc.Y;
4566
4567                                         if (icon.Contains (e.X, e.Y)) {
4568                                                 if (tooltip_currently_showing != new_cell)
4569                                                         MouseEnteredErrorIcon (new_cell);
4570                                         } else
4571                                                 MouseLeftErrorIcon (new_cell);
4572                                 }
4573
4574                                 Cursor = new_cursor;
4575
4576                                 // We have never been in a cell before
4577                                 if (hover_cell == null) {
4578                                         hover_cell = new_cell;
4579                                         OnCellMouseEnter (new DataGridViewCellEventArgs (hit.ColumnIndex, hit.RowIndex));
4580
4581                                         Rectangle display = GetCellDisplayRectangle (hit.ColumnIndex, hit.RowIndex, false);
4582                                         OnCellMouseMove (new DataGridViewCellMouseEventArgs (hit.ColumnIndex, hit.RowIndex, e.X - display.X, e.Y - display.Y, e));
4583
4584                                         return;
4585                                 }
4586
4587                                 // Were we already in this cell?
4588                                 if (hover_cell.RowIndex == hit.RowIndex && hover_cell.ColumnIndex == hit.ColumnIndex) {
4589                                         Rectangle display = GetCellDisplayRectangle (hit.ColumnIndex, hit.RowIndex, false);
4590                                         OnCellMouseMove (new DataGridViewCellMouseEventArgs (hit.ColumnIndex, hit.RowIndex, e.X - display.X, e.Y - display.Y, e));
4591
4592                                         return;
4593                                 }
4594
4595                                 // We are changing cells
4596                                 OnCellMouseLeave (new DataGridViewCellEventArgs (hover_cell.ColumnIndex, hover_cell.RowIndex));
4597
4598                                 hover_cell = new_cell;
4599
4600                                 OnCellMouseEnter (new DataGridViewCellEventArgs (hit.ColumnIndex, hit.RowIndex));
4601
4602                                 Rectangle display2 = GetCellDisplayRectangle (hit.ColumnIndex, hit.RowIndex, false);
4603                                 OnCellMouseMove (new DataGridViewCellMouseEventArgs (hit.ColumnIndex, hit.RowIndex, e.X - display2.X, e.Y - display2.Y, e));
4604
4605                                 return;
4606                         } else if (hit.Type == DataGridViewHitTestType.RowHeader) {
4607                                 DataGridViewRowHeaderCell new_cell = Rows[hit.RowIndex].HeaderCell;
4608
4609                                 EnteredHeaderCell = new_cell;
4610
4611                                 if (MouseOverRowResize (hit.RowIndex, e.Y))
4612                                         new_cursor = Cursors.HSplit;
4613
4614                                 // Check if we have moved into an error icon area
4615                                 Rectangle icon = new_cell.InternalErrorIconsBounds;
4616
4617                                 if (!icon.IsEmpty) {
4618                                         Point loc = GetCellDisplayRectangle (0, hit.RowIndex, false).Location;
4619
4620                                         icon.X += BorderWidth;
4621                                         icon.Y += loc.Y;
4622
4623                                         if (icon.Contains (e.X, e.Y)) {
4624                                                 if (tooltip_currently_showing != new_cell)
4625                                                         MouseEnteredErrorIcon (new_cell);
4626                                         } else
4627                                                 MouseLeftErrorIcon (new_cell);
4628                                 }
4629                         } else if (hit.Type == DataGridViewHitTestType.TopLeftHeader) {
4630                                 EnteredHeaderCell = null;
4631
4632                                 DataGridViewTopLeftHeaderCell new_cell = (DataGridViewTopLeftHeaderCell)TopLeftHeaderCell;
4633
4634                                 // Check if we have moved into an error icon area
4635                                 Rectangle icon = new_cell.InternalErrorIconsBounds;
4636
4637                                 if (!icon.IsEmpty) {
4638                                         Point loc = Point.Empty;
4639
4640                                         icon.X += BorderWidth;
4641                                         icon.Y += loc.Y;
4642
4643                                         if (icon.Contains (e.X, e.Y)) {
4644                                                 if (tooltip_currently_showing != new_cell)
4645                                                         MouseEnteredErrorIcon (new_cell);
4646                                         } else
4647                                                 MouseLeftErrorIcon (new_cell);
4648                                 }
4649
4650                         } else {
4651                                 EnteredHeaderCell = null;
4652
4653                                 // We have left the cell area
4654                                 if (hover_cell != null) {
4655                                         OnCellMouseLeave (new DataGridViewCellEventArgs (hover_cell.ColumnIndex, hover_cell.RowIndex));
4656                                         hover_cell = null;
4657                                 }
4658                         }
4659
4660                         Cursor = new_cursor;
4661                 }
4662
4663                 protected override void OnMouseUp (MouseEventArgs e)
4664                 {
4665                         base.OnMouseUp(e);
4666
4667                         if (column_resize_active) {
4668                                 column_resize_active = false;
4669
4670                                 if (resize_band_delta + Columns[resize_band].Width < 0)
4671                                         resize_band_delta = -Columns[resize_band].Width;
4672
4673                                 Columns[resize_band].Width = Math.Max (resize_band_delta + Columns[resize_band].Width, Columns[resize_band].MinimumWidth);
4674                                 Invalidate ();
4675                                 return;
4676                         }
4677
4678                         if (row_resize_active) {
4679                                 row_resize_active = false;
4680
4681                                 if (resize_band_delta + Rows[resize_band].Height < 0)
4682                                         resize_band_delta = -Rows[resize_band].Height;
4683
4684                                 Rows[resize_band].Height = Math.Max (resize_band_delta + Rows[resize_band].Height, Rows[resize_band].MinimumHeight);
4685                                 Invalidate ();
4686                                 return;
4687                         }
4688
4689                         HitTestInfo hit = this.HitTest (e.X, e.Y);
4690
4691                         if (hit.Type == DataGridViewHitTestType.Cell) {
4692                                 Rectangle display = GetCellDisplayRectangle (hit.ColumnIndex, hit.RowIndex, false);
4693                                 OnCellMouseUp (new DataGridViewCellMouseEventArgs (hit.ColumnIndex, hit.RowIndex, e.X - display.X, e.Y - display.Y, e));
4694                         }
4695
4696                         if (pressed_header_cell != null) {
4697                                 DataGridViewHeaderCell cell = pressed_header_cell;
4698                                 pressed_header_cell = null;
4699                                 if (ThemeEngine.Current.DataGridViewHeaderCellHasPressedStyle (this))
4700                                         Invalidate (GetHeaderCellBounds (cell));
4701                         }
4702                 }
4703
4704                 protected override void OnMouseWheel (MouseEventArgs e)
4705                 {
4706                         base.OnMouseWheel(e);
4707
4708                         int delta = SystemInformation.MouseWheelScrollLines * verticalScrollBar.SmallChange;
4709                         if (e.Delta < 0)
4710                                 verticalScrollBar.SafeValueSet (verticalScrollBar.Value + delta);
4711                         else
4712                                 verticalScrollBar.SafeValueSet (verticalScrollBar.Value - delta);
4713
4714                         OnVScrollBarScroll (this, new ScrollEventArgs (ScrollEventType.ThumbPosition, verticalScrollBar.Value));
4715                 }
4716
4717                 protected virtual void OnMultiSelectChanged (EventArgs e)
4718                 {
4719                         EventHandler eh = (EventHandler)(Events [MultiSelectChangedEvent]);
4720                         if (eh != null) eh (this, e);
4721                 }
4722
4723                 protected virtual void OnNewRowNeeded (DataGridViewRowEventArgs e) {
4724                         DataGridViewRowEventHandler eh = (DataGridViewRowEventHandler)(Events [NewRowNeededEvent]);
4725                         if (eh != null) eh (this, e);
4726                 }
4727
4728                 int first_row_index = 0;
4729                 internal int first_col_index = 0;
4730
4731                 protected override void OnPaint (PaintEventArgs e)
4732                 {
4733                         Graphics g = e.Graphics;
4734                         Rectangle bounds = ClientRectangle;
4735
4736                         // Paint the background
4737                         PaintBackground (g, e.ClipRectangle, bounds);
4738
4739                         List<DataGridViewColumn> sortedColumns = columns.ColumnDisplayIndexSortedArrayList;
4740
4741                         // Take borders into account
4742                         bounds.Inflate (-BorderWidth, -BorderWidth);
4743
4744                         // Paint the top left cell
4745                         if (rowHeadersVisible && columnHeadersVisible && ColumnCount > 0) {
4746                                 Rectangle topleftbounds = new Rectangle (bounds.X, bounds.Y, rowHeadersWidth, columnHeadersHeight);
4747
4748                                 TopLeftHeaderCell.PaintWork (g, e.ClipRectangle, topleftbounds, -1, TopLeftHeaderCell.State, ColumnHeadersDefaultCellStyle, AdvancedColumnHeadersBorderStyle, DataGridViewPaintParts.All);
4749                         }
4750
4751                         // Paint the column headers
4752                         if (columnHeadersVisible) {
4753                                 Rectangle headerBounds = bounds;
4754                                 headerBounds.Height = columnHeadersHeight;
4755
4756                                 if (rowHeadersVisible)
4757                                         headerBounds.X += rowHeadersWidth;
4758
4759                                 for (int index = first_col_index; index < sortedColumns.Count; index++) {
4760                                         DataGridViewColumn col = sortedColumns[index];
4761
4762                                         if (!col.Visible)
4763                                                 continue;
4764
4765                                         headerBounds.Width = col.Width;
4766                                         DataGridViewCell cell = col.HeaderCell;
4767
4768                                         DataGridViewAdvancedBorderStyle intermediateBorderStyle = (DataGridViewAdvancedBorderStyle)((ICloneable)this.AdvancedColumnHeadersBorderStyle).Clone ();
4769                                         DataGridViewAdvancedBorderStyle borderStyle = AdjustColumnHeaderBorderStyle (this.AdvancedColumnHeadersBorderStyle, intermediateBorderStyle, cell.ColumnIndex == 0, cell.ColumnIndex == columns.Count - 1);
4770
4771                                         cell.PaintWork (g, e.ClipRectangle, headerBounds, -1, cell.State, cell.InheritedStyle, borderStyle, DataGridViewPaintParts.All);
4772
4773                                         headerBounds.X += col.Width;
4774                                 }
4775
4776                                 bounds.Y += columnHeadersHeight;
4777                         }
4778
4779                         // Reset not displayed columns to !Displayed
4780                         for (int i = 0; i < first_col_index; i++)
4781                                 Columns[i].DisplayedInternal = false;
4782
4783                         int gridWidth = rowHeadersVisible ? rowHeadersWidth : 0;
4784
4785                         // Set Displayed columns
4786                         for (int i = first_col_index; i < Columns.Count; i++) {
4787                                 DataGridViewColumn col = Columns.ColumnDisplayIndexSortedArrayList[i];
4788
4789                                 if (!col.Visible)
4790                                         continue;
4791
4792                                 col.DisplayedInternal = true;
4793                                 gridWidth += col.Width;
4794                                 if (gridWidth >= Width)
4795                                         break;
4796                         }
4797
4798                         // Reset all not displayed rows to !Displayed
4799                         for (int i = 0; i < first_row_index; i++)
4800                                 GetRowInternal (i).DisplayedInternal = false;
4801
4802                         // Draw rows
4803                         for (int index = first_row_index; index < Rows.Count; index++) {
4804                                 DataGridViewRow row = Rows[index];
4805                                 if (!row.Visible)
4806                                         continue;
4807                                 GetRowInternal (index).DisplayedInternal = true;
4808
4809                                 bounds.Height = row.Height;
4810                                 bool is_first = row.Index == 0;
4811                                 bool is_last = row.Index == rows.Count - 1;
4812
4813                                 row.Paint (g, e.ClipRectangle, bounds, row.Index, row.GetState (row.Index), is_first, is_last);
4814
4815                                 bounds.Y += bounds.Height;
4816                                 bounds.X = BorderWidth;
4817
4818                                 if (bounds.Y >= ClientSize.Height - (horizontalScrollBar.Visible ? horizontalScrollBar.Height : 0))
4819                                         break;
4820                         }
4821
4822                         RefreshScrollBars ();
4823
4824                         // Paint the bottom right square if both scrollbars are displayed
4825                         if (horizontalScrollBar.Visible && verticalScrollBar.Visible)
4826                                 g.FillRectangle (SystemBrushes.Control, new Rectangle (horizontalScrollBar.Right, verticalScrollBar.Bottom, verticalScrollBar.Width, horizontalScrollBar.Height));
4827
4828                         // Paint the border
4829                         bounds = ClientRectangle;
4830
4831                         switch (BorderStyle) {
4832                                 case BorderStyle.FixedSingle:
4833                                         g.DrawRectangle (Pens.Black, new Rectangle (bounds.Left, bounds.Top, bounds.Width - 1, bounds.Height - 1));
4834                                         break;
4835                                 case BorderStyle.Fixed3D:
4836                                         ControlPaint.DrawBorder3D (g, bounds, Border3DStyle.Sunken);
4837                                         break;
4838                         }
4839
4840                         // Call the base impl at the end.
4841                         base.OnPaint(e);
4842                 }
4843
4844                 private void RefreshScrollBars ()
4845                 {
4846                         int gridWidth = 0;
4847                         int gridHeight = 0;
4848
4849                         foreach (DataGridViewColumn col in columns.ColumnDisplayIndexSortedArrayList)
4850                                 if (col.Visible)
4851                                         gridWidth += col.Width;
4852
4853                         foreach (DataGridViewRow row in Rows)
4854                                 if (row.Visible)
4855                                         gridHeight += row.Height;
4856
4857                         if (rowHeadersVisible)
4858                                 gridWidth += rowHeadersWidth;
4859                         if (columnHeadersVisible)
4860                                 gridHeight += columnHeadersHeight;
4861
4862                         bool horizontalVisible = false;
4863                         bool verticalVisible = false;
4864
4865                         if (AutoSize) {
4866                                 if (gridWidth > Size.Width || gridHeight > Size.Height)
4867                                         Size = new Size(gridWidth, gridHeight);
4868                         }
4869                         else {
4870                                 if (gridWidth > Size.Width)
4871                                         horizontalVisible = true;
4872                                 if (gridHeight > Size.Height)
4873                                         verticalVisible = true;
4874
4875                                 if (horizontalScrollBar.Visible && (gridHeight + horizontalScrollBar.Height) > Size.Height)
4876                                         verticalVisible = true;
4877                                 if (verticalScrollBar.Visible && (gridWidth + verticalScrollBar.Width) > Size.Width)
4878                                         horizontalVisible = true;
4879
4880                                 if (horizontalVisible) {
4881                                         horizontalScrollBar.Minimum = 0;
4882                                         horizontalScrollBar.Maximum = gridWidth;
4883                                         horizontalScrollBar.SmallChange = Columns[first_col_index].Width;
4884                                         int largeChange = ClientSize.Width - rowHeadersWidth - horizontalScrollBar.Height;
4885                                         if (largeChange <= 0)
4886                                                 largeChange = ClientSize.Width;
4887                                         horizontalScrollBar.LargeChange = largeChange;
4888                                 }
4889
4890                                 if (verticalVisible) {
4891                                         verticalScrollBar.Minimum = 0;
4892                                         verticalScrollBar.Maximum = gridHeight;
4893                                         int first_row_height = Rows.Count > 0 ? Rows[Math.Min (Rows.Count - 1, first_row_index)].Height : 0;
4894                                         verticalScrollBar.SmallChange = first_row_height + 1;
4895                                         int largeChange = ClientSize.Height - columnHeadersHeight - verticalScrollBar.Width;
4896                                         if (largeChange <= 0)
4897                                                 largeChange = ClientSize.Height;
4898                                         verticalScrollBar.LargeChange = largeChange;
4899                                 }
4900
4901                                 // Force the visibility of the scrollbars *after* computing the scrolling values,
4902                                 // as we need them *always* for navigation purposes.
4903                                 if (scrollBars != ScrollBars.Vertical && scrollBars != ScrollBars.Both)
4904                                         verticalVisible = false;
4905                                 if (scrollBars != ScrollBars.Horizontal && scrollBars != ScrollBars.Both)
4906                                         horizontalVisible = false;
4907
4908                                 // MSNET compatibility here
4909                                 if (RowCount <= 1)
4910                                         verticalVisible = false;
4911
4912
4913                         }
4914
4915                         horizontalScrollBar.Visible = horizontalVisible;
4916                         verticalScrollBar.Visible = verticalVisible;
4917                 }
4918
4919                 protected virtual void OnReadOnlyChanged (EventArgs e) {
4920                         EventHandler eh = (EventHandler)(Events [ReadOnlyChangedEvent]);
4921                         if (eh != null)
4922                                 eh (this, e);
4923                 }
4924
4925                 protected override void OnResize (EventArgs e) {
4926                         base.OnResize(e);
4927                         AutoResizeColumnsInternal ();
4928
4929                         OnVScrollBarScroll (this, new ScrollEventArgs (ScrollEventType.ThumbPosition, verticalScrollBar.Value));
4930                         OnHScrollBarScroll (this, new ScrollEventArgs (ScrollEventType.ThumbPosition, horizontalScrollBar.Value));
4931                 }
4932
4933                 protected override void OnRightToLeftChanged (EventArgs e) {
4934                         base.OnRightToLeftChanged(e);
4935                 }
4936
4937                 // In MSDN2 documentation there's no internal here
4938                 protected internal virtual void OnRowContextMenuStripChanged (DataGridViewRowEventArgs e)
4939                 {
4940                         DataGridViewRowEventHandler eh = (DataGridViewRowEventHandler)(Events [RowContextMenuStripChangedEvent]);
4941                         if (eh != null) eh (this, e);
4942                 }
4943
4944                 protected virtual void OnRowContextMenuStripNeeded (DataGridViewRowContextMenuStripNeededEventArgs e)
4945                 {
4946                         DataGridViewRowContextMenuStripNeededEventHandler eh = (DataGridViewRowContextMenuStripNeededEventHandler)(Events [RowContextMenuStripNeededEvent]);
4947                         if (eh != null) eh (this, e);
4948                 }
4949
4950                 protected internal virtual void OnRowDefaultCellStyleChanged (DataGridViewRowEventArgs e)
4951                 {
4952                         DataGridViewRowEventHandler eh = (DataGridViewRowEventHandler)(Events [RowDefaultCellStyleChangedEvent]);
4953                         if (eh != null) eh (this, e);
4954                 }
4955
4956                 protected virtual void OnRowDirtyStateNeeded (QuestionEventArgs e)
4957                 {
4958                         QuestionEventHandler eh = (QuestionEventHandler)(Events [RowDirtyStateNeededEvent]);
4959                         if (eh != null) eh (this, e);
4960                 }
4961
4962                 protected virtual void OnRowDividerDoubleClick (DataGridViewRowDividerDoubleClickEventArgs e)
4963                 {
4964                         DataGridViewRowDividerDoubleClickEventHandler eh = (DataGridViewRowDividerDoubleClickEventHandler)(Events [RowDividerDoubleClickEvent]);
4965                         if (eh != null) eh (this, e);
4966                 }
4967
4968                 protected virtual void OnRowDividerHeightChanged (DataGridViewRowEventArgs e)
4969                 {
4970                         DataGridViewRowEventHandler eh = (DataGridViewRowEventHandler)(Events [RowDividerHeightChangedEvent]);
4971                         if (eh != null) eh (this, e);
4972                 }
4973
4974                 protected virtual void OnRowEnter (DataGridViewCellEventArgs e)
4975                 {
4976                         DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [RowEnterEvent]);
4977                         if (eh != null) eh (this, e);
4978                 }
4979
4980                 protected internal virtual void OnRowErrorTextChanged (DataGridViewRowEventArgs e)
4981                 {
4982                         DataGridViewRowEventHandler eh = (DataGridViewRowEventHandler)(Events [RowErrorTextChangedEvent]);
4983                         if (eh != null) eh (this, e);
4984                 }
4985
4986                 protected virtual void OnRowErrorTextNeeded (DataGridViewRowErrorTextNeededEventArgs e)
4987                 {
4988                         DataGridViewRowErrorTextNeededEventHandler eh = (DataGridViewRowErrorTextNeededEventHandler)(Events [RowErrorTextNeededEvent]);
4989                         if (eh != null) eh (this, e);
4990                 }
4991
4992                 protected internal virtual void OnRowHeaderCellChanged (DataGridViewRowEventArgs e)
4993                 {
4994                         DataGridViewRowEventHandler eh = (DataGridViewRowEventHandler)(Events [RowHeaderCellChangedEvent]);
4995                         if (eh != null) eh (this, e);
4996                 }
4997
4998                 protected virtual void OnRowHeaderMouseClick (DataGridViewCellMouseEventArgs e)
4999                 {
5000                         DataGridViewCellMouseEventHandler eh = (DataGridViewCellMouseEventHandler)(Events [RowHeaderMouseClickEvent]);
5001                         if (eh != null) eh (this, e);
5002                 }
5003
5004                 protected virtual void OnRowHeaderMouseDoubleClick (DataGridViewCellMouseEventArgs e)
5005                 {
5006                         DataGridViewCellMouseEventHandler eh = (DataGridViewCellMouseEventHandler)(Events [RowHeaderMouseDoubleClickEvent]);
5007                         if (eh != null) eh (this, e);
5008                 }
5009
5010                 protected virtual void OnRowHeadersBorderStyleChanged (EventArgs e)
5011                 {
5012                         EventHandler eh = (EventHandler)(Events [RowHeadersBorderStyleChangedEvent]);
5013                         if (eh != null) eh (this, e);
5014                 }
5015
5016                 protected virtual void OnRowHeadersDefaultCellStyleChanged (EventArgs e)
5017                 {
5018                         EventHandler eh = (EventHandler)(Events [RowHeadersDefaultCellStyleChangedEvent]);
5019                         if (eh != null) eh (this, e);
5020                 }
5021
5022                 protected virtual void OnRowHeadersWidthChanged (EventArgs e)
5023                 {
5024                         EventHandler eh = (EventHandler)(Events [RowHeadersWidthChangedEvent]);
5025                         if (eh != null) eh (this, e);
5026                 }
5027
5028                 protected virtual void OnRowHeadersWidthSizeModeChanged (DataGridViewAutoSizeModeEventArgs e)
5029                 {
5030                         DataGridViewAutoSizeModeEventHandler eh = (DataGridViewAutoSizeModeEventHandler)(Events [RowHeadersWidthSizeModeChangedEvent]);
5031                         if (eh != null) eh (this, e);
5032                 }
5033
5034                 protected internal virtual void OnRowHeightChanged (DataGridViewRowEventArgs e)
5035                 {
5036                         UpdateRowHeightInfo (e.Row.Index, false);
5037                         DataGridViewRowEventHandler eh = (DataGridViewRowEventHandler)(Events [RowHeightChangedEvent]);
5038                         if (eh != null) eh (this, e);
5039                 }
5040
5041                 protected virtual void OnRowHeightInfoNeeded (DataGridViewRowHeightInfoNeededEventArgs e)
5042                 {
5043                         DataGridViewRowHeightInfoNeededEventHandler eh = (DataGridViewRowHeightInfoNeededEventHandler)(Events [RowHeightInfoNeededEvent]);
5044                         if (eh != null) eh (this, e);
5045                 }
5046
5047                 protected virtual void OnRowHeightInfoPushed (DataGridViewRowHeightInfoPushedEventArgs e)
5048                 {
5049                         DataGridViewRowHeightInfoPushedEventHandler eh = (DataGridViewRowHeightInfoPushedEventHandler)(Events [RowHeightInfoPushedEvent]);
5050                         if (eh != null) eh (this, e);
5051                 }
5052
5053                 protected virtual void OnRowLeave (DataGridViewCellEventArgs e)
5054                 {
5055                         DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [RowLeaveEvent]);
5056                         if (eh != null) eh (this, e);
5057                 }
5058
5059                 protected internal virtual void OnRowMinimumHeightChanged (DataGridViewRowEventArgs e)
5060                 {
5061                         DataGridViewRowEventHandler eh = (DataGridViewRowEventHandler)(Events [RowMinimumHeightChangedEvent]);
5062                         if (eh != null) eh (this, e);
5063                 }
5064
5065                 protected internal virtual void OnRowPostPaint (DataGridViewRowPostPaintEventArgs e)
5066                 {
5067                         DataGridViewRowPostPaintEventHandler eh = (DataGridViewRowPostPaintEventHandler)(Events [RowPostPaintEvent]);
5068                         if (eh != null) eh (this, e);
5069                 }
5070
5071                 protected internal virtual void OnRowPrePaint (DataGridViewRowPrePaintEventArgs e)
5072                 {
5073                         DataGridViewRowPrePaintEventHandler eh = (DataGridViewRowPrePaintEventHandler)(Events [RowPrePaintEvent]);
5074                         if (eh != null) eh (this, e);
5075                 }
5076
5077                 internal void OnRowsAddedInternal (DataGridViewRowsAddedEventArgs e)
5078                 {
5079                         if (hover_cell != null && hover_cell.RowIndex >= e.RowIndex)
5080                                 hover_cell = null;
5081
5082                         // Select the first row if we are not databound.
5083                         // If we are databound selection is managed by the data manager.
5084                         if (IsHandleCreated && DataManager == null && CurrentCell == null && Rows.Count > 0 && Columns.Count > 0)
5085                                 MoveCurrentCell (ColumnDisplayIndexToIndex (0), 0, true, false, false, true);
5086
5087                         AutoResizeColumnsInternal ();
5088                         if (VirtualMode) {
5089                                 for (int i = 0; i < e.RowCount; i++)
5090                                         UpdateRowHeightInfo (e.RowIndex + i, false);
5091                         }
5092
5093                         Invalidate ();
5094                         OnRowsAdded (e);
5095                 }
5096
5097                 protected virtual void OnRowsAdded (DataGridViewRowsAddedEventArgs e)
5098                 {
5099                         DataGridViewRowsAddedEventHandler eh = (DataGridViewRowsAddedEventHandler)(Events [RowsAddedEvent]);
5100                         if (eh != null) eh (this, e);
5101                 }
5102
5103                 protected virtual void OnRowsDefaultCellStyleChanged (EventArgs e)
5104                 {
5105                         EventHandler eh = (EventHandler)(Events [RowsDefaultCellStyleChangedEvent]);
5106                         if (eh != null) eh (this, e);
5107                 }
5108
5109                 internal void OnRowsPreRemovedInternal (DataGridViewRowsRemovedEventArgs e)
5110                 {
5111                         // All removed rows should be removed from the selection too.
5112                         if (selected_rows != null)
5113                         {
5114                                 int lastRowIndex = e.RowIndex + e.RowCount;
5115                                 for (int rowIndex = e.RowIndex; rowIndex < lastRowIndex; ++rowIndex)
5116                                         SetSelectedRowCore (rowIndex, false);
5117                         }
5118
5119                         if (Rows.Count - e.RowCount <= 0) {
5120                                 MoveCurrentCell (-1, -1, true, false, false, true);
5121                                 hover_cell = null;
5122                         } else if (Columns.Count == 0) {
5123                                 MoveCurrentCell (-1, -1, true, false, false, true);
5124                                 hover_cell = null;
5125                         } else if (currentCell != null && currentCell.RowIndex == e.RowIndex) {
5126                                 int nextRowIndex = e.RowIndex;
5127                                 if (nextRowIndex >= Rows.Count - e.RowCount)
5128                                         nextRowIndex = Rows.Count - 1 - e.RowCount;
5129                                 MoveCurrentCell (currentCell != null ? currentCell.ColumnIndex : 0, nextRowIndex,
5130                                                  true, false, false, true);
5131                                 if (hover_cell != null && hover_cell.RowIndex >= e.RowIndex)
5132                                         hover_cell = null;
5133                         }
5134                 }
5135
5136                 internal void OnRowsPostRemovedInternal (DataGridViewRowsRemovedEventArgs e)
5137                 {
5138                         Invalidate ();
5139                         OnRowsRemoved (e);
5140                 }
5141
5142                 protected virtual void OnRowsRemoved (DataGridViewRowsRemovedEventArgs e)
5143                 {
5144                         DataGridViewRowsRemovedEventHandler eh = (DataGridViewRowsRemovedEventHandler)(Events [RowsRemovedEvent]);
5145                         if (eh != null) eh (this, e);
5146                 }
5147
5148                 protected internal virtual void OnRowStateChanged (int rowIndex, DataGridViewRowStateChangedEventArgs e)
5149                 {
5150                         DataGridViewRowStateChangedEventHandler eh = (DataGridViewRowStateChangedEventHandler)(Events [RowStateChangedEvent]);
5151                         if (eh != null) eh (this, e);
5152                 }
5153
5154                 protected virtual void OnRowUnshared (DataGridViewRowEventArgs e)
5155                 {
5156                         DataGridViewRowEventHandler eh = (DataGridViewRowEventHandler)(Events [RowUnsharedEvent]);
5157                         if (eh != null) eh (this, e);
5158                 }
5159
5160                 protected virtual void OnRowValidated (DataGridViewCellEventArgs e)
5161                 {
5162                         DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [RowValidatedEvent]);
5163                         if (eh != null) eh (this, e);
5164                 }
5165
5166                 protected virtual void OnRowValidating (DataGridViewCellCancelEventArgs e)
5167                 {
5168                         DataGridViewCellCancelEventHandler eh = (DataGridViewCellCancelEventHandler)(Events [RowValidatingEvent]);
5169                         if (eh != null) eh (this, e);
5170                 }
5171
5172                 protected virtual void OnScroll (ScrollEventArgs e)
5173                 {
5174                         ScrollEventHandler eh = (ScrollEventHandler)(Events [ScrollEvent]);
5175                         if (eh != null) eh (this, e);
5176                 }
5177
5178                 protected virtual void OnSelectionChanged (EventArgs e)
5179                 {
5180                         EventHandler eh = (EventHandler)(Events [SelectionChangedEvent]);
5181                         if (eh != null) eh (this, e);
5182                 }
5183
5184                 protected virtual void OnSortCompare (DataGridViewSortCompareEventArgs e) {
5185                         DataGridViewSortCompareEventHandler eh = (DataGridViewSortCompareEventHandler)(Events [SortCompareEvent]);
5186                         if (eh != null) eh (this, e);
5187                 }
5188
5189                 protected virtual void OnSorted (EventArgs e)
5190                 {
5191                         EventHandler eh = (EventHandler)(Events [SortedEvent]);
5192                         if (eh != null) eh (this, e);
5193                 }
5194
5195                 protected virtual void OnUserAddedRow (DataGridViewRowEventArgs e)
5196                 {
5197                         PrepareEditingRow (false, false);
5198
5199                         new_row_editing = true;
5200                         if (DataManager != null) {
5201                                 // Switch the current editing row with a real one
5202                                 if (editing_row != null) {
5203                                         Rows.RemoveInternal (editing_row);
5204                                         editing_row = null;
5205                                 }
5206                                 DataManager.AddNew (); // will raise OnListPositionChanged
5207                         }
5208
5209                         e = new DataGridViewRowEventArgs (Rows[NewRowIndex]);
5210                         DataGridViewRowEventHandler eh = (DataGridViewRowEventHandler)(Events [UserAddedRowEvent]);
5211                         if (eh != null) eh (this, e);
5212                 }
5213
5214                 protected virtual void OnUserDeletedRow (DataGridViewRowEventArgs e)
5215                 {
5216                         DataGridViewRowEventHandler eh = (DataGridViewRowEventHandler)(Events [UserDeletedRowEvent]);
5217                         if (eh != null) eh (this, e);
5218                 }
5219
5220                 protected virtual void OnUserDeletingRow (DataGridViewRowCancelEventArgs e)
5221                 {
5222                         DataGridViewRowCancelEventHandler eh = (DataGridViewRowCancelEventHandler)(Events [UserDeletingRowEvent]);
5223                         if (eh != null) eh (this, e);
5224                 }
5225
5226                 protected override void OnValidating (CancelEventArgs e)
5227                 {
5228                         base.OnValidating(e);
5229                 }
5230
5231                 protected override void OnVisibleChanged (EventArgs e)
5232                 {
5233                         base.OnVisibleChanged(e);
5234                 }
5235
5236                 protected virtual void PaintBackground (Graphics graphics, Rectangle clipBounds, Rectangle gridBounds)
5237                 {
5238                         graphics.FillRectangle (ThemeEngine.Current.ResPool.GetSolidBrush (backgroundColor), gridBounds);
5239                 }
5240
5241                 protected bool ProcessAKey (Keys keyData)
5242                 {
5243                         if (!MultiSelect)
5244                                 return false;
5245
5246                         if ((keyData & Keys.Control) == Keys.Control) {
5247                                 SelectAll ();
5248                                 return true;
5249                         }
5250
5251                         return false;
5252                 }
5253
5254                 protected virtual bool ProcessDataGridViewKey (KeyEventArgs e)
5255                 {
5256                         switch (e.KeyData & ~Keys.Modifiers) {
5257                                 case Keys.A:
5258                                         return ProcessAKey (e.KeyData);
5259                                 case Keys.Delete:
5260                                         return ProcessDeleteKey (e.KeyData);
5261                                 case Keys.Down:
5262                                         return ProcessDownKey (e.KeyData);
5263                                 case Keys.Escape:
5264                                         return ProcessEscapeKey (e.KeyData);
5265                                 case Keys.End:
5266                                         return ProcessEndKey (e.KeyData);
5267                                 case Keys.Enter:
5268                                         return ProcessEnterKey (e.KeyData);
5269                                 case Keys.F2:
5270                                         return ProcessF2Key (e.KeyData);
5271                                 case Keys.Home:
5272                                         return ProcessHomeKey (e.KeyData);
5273                                 case Keys.Left:
5274                                         return ProcessLeftKey (e.KeyData);
5275                                 case Keys.Next:
5276                                         return ProcessNextKey (e.KeyData);
5277                                 case Keys.Prior:
5278                                         return ProcessPriorKey (e.KeyData);
5279                                 case Keys.Right:
5280                                         return ProcessRightKey (e.KeyData);
5281                                 case Keys.Space:
5282                                         return ProcessSpaceKey (e.KeyData);
5283                                 case Keys.Tab:
5284                                         return ProcessTabKey (e.KeyData);
5285                                 case Keys.Up:
5286                                         return ProcessUpKey (e.KeyData);
5287                                 case Keys.D0:
5288                                 case Keys.NumPad0:
5289                                         return ProcessZeroKey (e.KeyData);
5290                         }
5291
5292                         return false;
5293                 }
5294
5295                 protected bool ProcessDeleteKey (Keys keyData)
5296                 {
5297                         if (!AllowUserToDeleteRows || SelectedRows.Count == 0)
5298                                 return false;
5299
5300                         for (int i = SelectedRows.Count - 1; i >= 0; i--) {
5301                                 DataGridViewRow row = SelectedRows[i];
5302
5303                                 if (row.IsNewRow)
5304                                         continue;
5305
5306                                 if (hover_cell != null && hover_cell.OwningRow == row)
5307                                         hover_cell = null;
5308
5309                                 if (DataManager != null)
5310                                         DataManager.RemoveAt (row.Index);
5311                                 else
5312                                         Rows.RemoveAt (row.Index);
5313                         }
5314
5315                         return true;
5316                 }
5317
5318                 protected override bool ProcessDialogKey (Keys keyData)
5319                 {
5320                         switch (keyData) {
5321                                 case Keys.Tab:
5322                                 case Keys.Shift | Keys.Tab:
5323                                         if (standardTab)
5324                                                 return base.ProcessDialogKey (keyData & ~Keys.Control);
5325
5326                                         if (ProcessDataGridViewKey (new KeyEventArgs (keyData)))
5327                                                 return true;
5328
5329                                         break;
5330                                 case Keys.Control | Keys.Tab:
5331                                 case Keys.Control | Keys.Shift | Keys.Tab:
5332                                         if (!standardTab)
5333                                                 return base.ProcessDialogKey (keyData & ~Keys.Control);
5334
5335                                         if (ProcessDataGridViewKey (new KeyEventArgs (keyData)))
5336                                                 return true;
5337
5338                                         break;
5339                                 case Keys.Enter:
5340                                 case Keys.Escape:
5341                                         if (ProcessDataGridViewKey (new KeyEventArgs (keyData)))
5342                                                 return true;
5343
5344                                         break;
5345                         }
5346
5347                         return base.ProcessDialogKey(keyData);
5348                 }
5349
5350                 protected bool ProcessDownKey (Keys keyData)
5351                 {
5352                         int current_row = CurrentCellAddress.Y;
5353
5354                         if (current_row < Rows.Count - 1) {
5355                                 // Move to the last cell in the column
5356                                 if ((keyData & Keys.Control) == Keys.Control)
5357                                         MoveCurrentCell (CurrentCellAddress.X, Rows.Count - 1, true, (keyData & Keys.Control) == Keys.Control, (keyData & Keys.Shift) == Keys.Shift, true);
5358                                 // Move one cell down
5359                                 else
5360                                         MoveCurrentCell (CurrentCellAddress.X, current_row + 1, true, (keyData & Keys.Control) == Keys.Control, (keyData & Keys.Shift) == Keys.Shift, true);
5361
5362                                 return true;
5363                         }
5364
5365                         return false;
5366                 }
5367
5368                 protected bool ProcessEndKey (Keys keyData)
5369                 {
5370                         int disp_index = ColumnIndexToDisplayIndex (currentCellAddress.X);
5371
5372                         // Move to the last cell in the control
5373                         if ((keyData & Keys.Control) == Keys.Control) {
5374                                 MoveCurrentCell (ColumnDisplayIndexToIndex (Columns.Count - 1), Rows.Count - 1, true, (keyData & Keys.Control) == Keys.Control, (keyData & Keys.Shift) == Keys.Shift, true);
5375                                 return true;
5376                         }
5377
5378                         // Move to the last cell in the row
5379                         if (disp_index < Columns.Count - 1) {
5380                                 MoveCurrentCell (ColumnDisplayIndexToIndex (Columns.Count - 1), currentCellAddress.Y, true, (keyData & Keys.Control) == Keys.Control, (keyData & Keys.Shift) == Keys.Shift, true);
5381                                 return true;
5382                         }
5383
5384                         return false;
5385                 }
5386
5387                 protected bool ProcessEnterKey (Keys keyData)
5388                 {
5389                         if (ProcessDownKey (keyData))
5390                                 return true;
5391
5392                         // ProcessDown may fail if we are on the last row,
5393                         // but Enter should still EndEdit if this is the last row
5394                         EndEdit ();
5395                         return true;
5396                 }
5397
5398                 protected bool ProcessEscapeKey (Keys keyData)
5399                 {
5400                         if (!IsCurrentCellInEditMode)
5401                                 return false;
5402
5403                         CancelEdit ();
5404                         return true;
5405                 }
5406
5407                 protected bool ProcessF2Key (Keys keyData)
5408                 {
5409                         if (editMode == DataGridViewEditMode.EditOnF2 || editMode == DataGridViewEditMode.EditOnKeystrokeOrF2) {
5410                                 BeginEdit (true);
5411                                 return true;
5412                         }
5413
5414                         return false;
5415                 }
5416
5417                 protected bool ProcessHomeKey (Keys keyData)
5418                 {
5419                         int disp_index = ColumnIndexToDisplayIndex (currentCellAddress.X);
5420
5421                         // Move to the first cell in the control
5422                         if ((keyData & Keys.Control) == Keys.Control) {
5423                                 MoveCurrentCell (ColumnDisplayIndexToIndex (0), 0, true, (keyData & Keys.Control) == Keys.Control, (keyData & Keys.Shift) == Keys.Shift, true);
5424                                 return true;
5425                         }
5426
5427                         // Move to the first cell in the row
5428                         if (disp_index > 0) {
5429                                 MoveCurrentCell (ColumnDisplayIndexToIndex (0), currentCellAddress.Y, true, (keyData & Keys.Control) == Keys.Control, (keyData & Keys.Shift) == Keys.Shift, true);
5430                                 return true;
5431                         }
5432
5433                         return false;
5434                 }
5435
5436                 [MonoInternalNote ("What does insert do?")]
5437                 protected bool ProcessInsertKey (Keys keyData)
5438                 {
5439                         return false;
5440                 }
5441
5442                 protected override bool ProcessKeyEventArgs (ref Message m)
5443                 {
5444                         DataGridViewCell cell = CurrentCell;
5445
5446                         if (cell != null) {
5447                                 if (cell.KeyEntersEditMode (new KeyEventArgs ((Keys)m.WParam.ToInt32 ())))
5448                                         BeginEdit (true);
5449                                 if (EditingControl != null && ((Msg)m.Msg == Msg.WM_KEYDOWN || (Msg)m.Msg == Msg.WM_CHAR))
5450                                         XplatUI.SendMessage (EditingControl.Handle, (Msg)m.Msg, m.WParam, m.LParam);
5451                         }
5452
5453                         return base.ProcessKeyEventArgs (ref m);
5454                 }
5455
5456                 protected override bool ProcessKeyPreview (ref Message m)
5457                 {
5458                         if ((Msg)m.Msg == Msg.WM_KEYDOWN && (IsCurrentCellInEditMode || m.HWnd == horizontalScrollBar.Handle || m.HWnd == verticalScrollBar.Handle)) {
5459                                 KeyEventArgs e = new KeyEventArgs ((Keys)m.WParam.ToInt32 ());
5460
5461                                 IDataGridViewEditingControl ctrl = (IDataGridViewEditingControl)EditingControlInternal;
5462
5463                                 if (ctrl != null)
5464                                         if (ctrl.EditingControlWantsInputKey (e.KeyData, false))
5465                                                 return false;
5466
5467                                 switch (e.KeyData) {
5468                                         case Keys.Escape:
5469                                         case Keys.Down:
5470                                         case Keys.Up:
5471                                         case Keys.Left:
5472                                         case Keys.Right:
5473                                         case Keys.Tab:
5474                                         case Keys.Prior:
5475                                         case Keys.Next:
5476                                                 return ProcessDataGridViewKey (e);
5477                                 }
5478                         }
5479
5480                         return base.ProcessKeyPreview (ref m);
5481                 }
5482
5483                 protected bool ProcessLeftKey (Keys keyData)
5484                 {
5485                         int disp_index = ColumnIndexToDisplayIndex (currentCellAddress.X);
5486
5487                         if (disp_index > 0) {
5488                                 // Move to the first cell in the row
5489                                 if ((keyData & Keys.Control) == Keys.Control)
5490                                         MoveCurrentCell (ColumnDisplayIndexToIndex (0), currentCellAddress.Y, true, (keyData & Keys.Control) == Keys.Control, (keyData & Keys.Shift) == Keys.Shift, true);
5491                                 // Move one cell to the left
5492                                 else
5493                                         MoveCurrentCell (ColumnDisplayIndexToIndex (disp_index - 1), currentCellAddress.Y, true, (keyData & Keys.Control) == Keys.Control, (keyData & Keys.Shift) == Keys.Shift, true);
5494
5495                                 return true;
5496                         }
5497
5498                         return false;
5499                 }
5500
5501                 // Page Down
5502                 protected bool ProcessNextKey (Keys keyData)
5503                 {
5504                         int current_row = CurrentCellAddress.Y;
5505
5506                         if (current_row < Rows.Count - 1) {
5507                                 // Move one "page" of cells down
5508                                 int new_row = Math.Min (Rows.Count - 1, current_row + DisplayedRowCount (false));
5509
5510                                 MoveCurrentCell (CurrentCellAddress.X, new_row, true, (keyData & Keys.Control) == Keys.Control, (keyData & Keys.Shift) == Keys.Shift, true);
5511
5512                                 return true;
5513                         }
5514
5515                         return false;
5516                 }
5517
5518                 // Page Up
5519                 protected bool ProcessPriorKey (Keys keyData)
5520                 {
5521                         int current_row = CurrentCellAddress.Y;
5522
5523                         if (current_row > 0) {
5524                                 // Move one "page" of cells up
5525                                 int new_row = Math.Max (0, current_row - DisplayedRowCount (false));
5526
5527                                 MoveCurrentCell (CurrentCellAddress.X, new_row, true, (keyData & Keys.Control) == Keys.Control, (keyData & Keys.Shift) == Keys.Shift, true);
5528
5529                                 return true;
5530                         }
5531
5532                         return false;
5533                 }
5534
5535                 protected bool ProcessRightKey (Keys keyData)
5536                 {
5537                         int disp_index = ColumnIndexToDisplayIndex (currentCellAddress.X);
5538
5539                         if (disp_index < Columns.Count - 1) {
5540                                 // Move to the last cell in the row
5541                                 if ((keyData & Keys.Control) == Keys.Control)
5542                                         MoveCurrentCell (ColumnDisplayIndexToIndex (Columns.Count - 1), currentCellAddress.Y, true, (keyData & Keys.Control) == Keys.Control, (keyData & Keys.Shift) == Keys.Shift, true);
5543                                 // Move one cell to the right
5544                                 else
5545                                         MoveCurrentCell (ColumnDisplayIndexToIndex (disp_index + 1), currentCellAddress.Y, true, (keyData & Keys.Control) == Keys.Control, (keyData & Keys.Shift) == Keys.Shift, true);
5546
5547                                 return true;
5548                         }
5549
5550                         return false;
5551                 }
5552
5553                 protected bool ProcessSpaceKey (Keys keyData)
5554                 {
5555                         if ((keyData & Keys.Shift) == Keys.Shift) {
5556                                 if (selectionMode == DataGridViewSelectionMode.RowHeaderSelect) {
5557                                         SetSelectedRowCore (CurrentCellAddress.Y, true);
5558                                         InvalidateRow (CurrentCellAddress.Y);
5559                                         return true;
5560                                 }
5561                                 if (selectionMode == DataGridViewSelectionMode.ColumnHeaderSelect) {
5562                                         SetSelectedColumnCore (CurrentCellAddress.X, true);
5563                                         InvalidateColumn (CurrentCellAddress.X);
5564                                         return true;
5565                                 }
5566                         }
5567
5568                         if (CurrentCell is DataGridViewButtonCell || CurrentCell is DataGridViewLinkCell || CurrentCell is DataGridViewCheckBoxCell) {
5569                                 DataGridViewCellEventArgs e = new DataGridViewCellEventArgs (CurrentCell.ColumnIndex, CurrentCell.RowIndex);
5570
5571                                 OnCellClick (e);
5572                                 OnCellContentClick (e);
5573
5574                                 if (CurrentCell is DataGridViewButtonCell)
5575                                         (CurrentCell as DataGridViewButtonCell).OnClickInternal (e);
5576                                 if (CurrentCell is DataGridViewCheckBoxCell)
5577                                         (CurrentCell as DataGridViewCheckBoxCell).OnClickInternal (e);
5578
5579                                 return true;
5580                         }
5581
5582                         return false;
5583                 }
5584
5585                 protected bool ProcessTabKey (Keys keyData)
5586                 {
5587                         Form f = FindForm ();
5588
5589                         if (f != null)
5590                                 f.ActivateFocusCues ();
5591
5592                         int disp_index = ColumnIndexToDisplayIndex (currentCellAddress.X);
5593
5594                         // Tab goes forward
5595                         // Shift-tab goes backwards
5596                         if ((keyData & Keys.Shift) == Keys.Shift) {
5597                                 if (disp_index > 0) {
5598                                         // Move one cell to the left
5599                                         MoveCurrentCell (ColumnDisplayIndexToIndex (disp_index - 1), currentCellAddress.Y, true, (keyData & Keys.Control) == Keys.Control, false, true);
5600                                         return true;
5601                                 } else if (currentCellAddress.Y > 0) {
5602                                         // Move to the last cell in the previous row
5603                                         MoveCurrentCell (ColumnDisplayIndexToIndex (Columns.Count - 1), currentCellAddress.Y - 1, true, false, false, true);
5604                                         return true;
5605                                 }
5606
5607                         } else {
5608                                 if (disp_index < Columns.Count - 1) {
5609                                         // Move one cell to the right
5610                                         MoveCurrentCell (ColumnDisplayIndexToIndex (disp_index + 1), currentCellAddress.Y, true, (keyData & Keys.Control) == Keys.Control, false, true);
5611
5612                                         return true;
5613                                 } else if (currentCellAddress.Y < Rows.Count - 1) {
5614                                         // Move to the first cell in the next row
5615                                         MoveCurrentCell (ColumnDisplayIndexToIndex (0), currentCellAddress.Y + 1, true, false, false, true);
5616                                         return true;
5617                                 }
5618
5619
5620                         }
5621
5622                         return false;
5623                 }
5624
5625                 protected bool ProcessUpKey (Keys keyData)
5626                 {
5627                         int current_row = CurrentCellAddress.Y;
5628
5629                         if (current_row > 0) {
5630                                 // Move to the first cell in the column
5631                                 if ((keyData & Keys.Control) == Keys.Control)
5632                                         MoveCurrentCell (CurrentCellAddress.X, 0, true, (keyData & Keys.Control) == Keys.Control, (keyData & Keys.Shift) == Keys.Shift, true);
5633                                 // Move one cell up
5634                                 else
5635                                         MoveCurrentCell (CurrentCellAddress.X, current_row - 1, true, (keyData & Keys.Control) == Keys.Control, (keyData & Keys.Shift) == Keys.Shift, true);
5636
5637                                 return true;
5638                         }
5639
5640                         return false;
5641                 }
5642
5643                 protected bool ProcessZeroKey (Keys keyData)
5644                 {
5645                         if ((keyData & Keys.Control) == Keys.Control && CurrentCell.EditType != null) {
5646                                 CurrentCell.Value = DBNull.Value;
5647                                 InvalidateCell (CurrentCell);
5648                                 return true;
5649                         }
5650
5651                         return false;
5652                 }
5653
5654                 protected override void SetBoundsCore (int x, int y, int width, int height, BoundsSpecified specified) {
5655                         base.SetBoundsCore(x, y, width, height, specified);
5656                 }
5657
5658                 [MonoTODO ("Does not use validateCurrentCell")]
5659                 protected virtual bool SetCurrentCellAddressCore (int columnIndex, int rowIndex, bool setAnchorCellAddress, bool validateCurrentCell, bool throughMouseClick)
5660                 {
5661                         if ((columnIndex < 0 || columnIndex > Columns.Count - 1) && rowIndex != -1)
5662                                 throw new ArgumentOutOfRangeException ("columnIndex");
5663                         if ((rowIndex < 0 || rowIndex > Rows.Count - 1) && columnIndex != -1)
5664                                 throw new ArgumentOutOfRangeException ("rowIndex");
5665
5666                         DataGridViewCell cell;
5667
5668                         if (columnIndex == -1 && rowIndex == -1)
5669                                 cell = null;
5670                         else
5671                                 cell = Rows.SharedRow (rowIndex).Cells[columnIndex];
5672
5673                         if (cell != null && !cell.Visible)
5674                                 throw new InvalidOperationException ("cell is not visible");
5675
5676                         // Always update the current cell address property
5677                         // If the row has moved it would be out of date.
5678                         if (currentCell != null) {
5679                                 if (setAnchorCellAddress) {
5680                                         anchor_cell.X = currentCell.ColumnIndex;
5681                                         anchor_cell.Y = currentCell.RowIndex;
5682                                 }
5683                                 currentCellAddress.X = currentCell.ColumnIndex;
5684                                 currentCellAddress.Y = currentCell.RowIndex;
5685                         }
5686
5687                         if (cell != currentCell) {
5688                                 if (currentCell != null) {
5689                                         if (currentCell.IsInEditMode) {
5690                                                 if (!EndEdit ())
5691                                                         return false;
5692                                                 else if (currentCell.RowIndex == NewRowIndex && new_row_editing)
5693                                                         CancelEdit ();
5694                                         } else {
5695                                                 // CancelEdit will replace the uncommited real editing row with a place holder row
5696                                                 if (new_row_editing && currentCell.RowIndex == NewRowIndex)
5697                                                         CancelEdit ();
5698                                         }
5699                                         OnCellLeave (new DataGridViewCellEventArgs(currentCell.ColumnIndex, currentCell.RowIndex));
5700                                         OnRowLeave (new DataGridViewCellEventArgs (currentCell.ColumnIndex, currentCell.RowIndex));
5701                                 }
5702
5703                                 currentCell = cell;
5704                                 if (setAnchorCellAddress)
5705                                         anchor_cell = new Point (columnIndex, rowIndex);
5706                                 currentCellAddress = new Point (columnIndex, rowIndex);
5707
5708                                 if (cell != null) {
5709                                         UpdateBindingPosition (cell.RowIndex);
5710                                         OnRowEnter (new DataGridViewCellEventArgs (cell.ColumnIndex, cell.RowIndex));
5711                                         OnCellEnter (new DataGridViewCellEventArgs(cell.ColumnIndex, cell.RowIndex));
5712                                 }
5713                                 OnCurrentCellChanged (EventArgs.Empty);
5714
5715                                 if (cell != null) {
5716                                         // If the user begins an edit in the NewRow, add a new real row
5717                                         if (AllowUserToAddRows && cell.RowIndex == NewRowIndex && !is_binding && !new_row_editing) {
5718                                                 // OnUserAddedRow will add a real row and reset the current cell
5719                                                 OnUserAddedRow (new DataGridViewRowEventArgs (Rows[NewRowIndex]));
5720                                         } else {
5721                                                 if (editMode == DataGridViewEditMode.EditOnEnter)
5722                                                         BeginEdit (true);
5723                                         }
5724                                 }
5725                         } else {
5726                                 if (cell != null && throughMouseClick)
5727                                         BeginEdit (true);
5728                         }
5729
5730                         return true;
5731                 }
5732
5733                 protected virtual void SetSelectedCellCore (int columnIndex, int rowIndex, bool selected) {
5734                         rows [rowIndex].Cells [columnIndex].Selected = selected;
5735
5736                         OnSelectionChanged (EventArgs.Empty);
5737                 }
5738
5739                 internal void SetSelectedColumnCoreInternal (int columnIndex, bool selected) {
5740                         SetSelectedColumnCore (columnIndex, selected);
5741                 }
5742
5743                 protected virtual void SetSelectedColumnCore (int columnIndex, bool selected) {
5744                         if (selectionMode != DataGridViewSelectionMode.ColumnHeaderSelect && selectionMode != DataGridViewSelectionMode.FullColumnSelect)
5745                                 return;
5746
5747                         DataGridViewColumn col = columns [columnIndex];
5748
5749                         col.SelectedInternal = selected;
5750
5751                         if (selected_columns == null)
5752                                 selected_columns = new DataGridViewSelectedColumnCollection ();
5753
5754                         bool selectionChanged = false;
5755                         if (!selected && selected_columns.Contains (col)) {
5756                                 selected_columns.InternalRemove (col);
5757                                 selectionChanged = true;
5758                         } else if (selected && !selected_columns.Contains (col)) {
5759                                 selected_columns.InternalAdd (col);
5760                                 selectionChanged = true;
5761                         }
5762
5763                         if (selectionChanged)
5764                                 OnSelectionChanged (EventArgs.Empty);
5765
5766                         Invalidate();
5767                 }
5768
5769                 internal void SetSelectedRowCoreInternal (int rowIndex, bool selected) {
5770                         if (rowIndex >= 0 && rowIndex < Rows.Count)
5771                                 SetSelectedRowCore (rowIndex, selected);
5772                 }
5773
5774                 protected virtual void SetSelectedRowCore (int rowIndex, bool selected) {
5775                         DataGridViewRow row = rows [rowIndex];
5776
5777                         row.SelectedInternal = selected;
5778
5779                         if (selected_rows == null)
5780                                 selected_rows = new DataGridViewSelectedRowCollection (this);
5781
5782                         bool selectionChanged = false;
5783                         if (!selected && selected_rows.Contains (row)) {
5784                                 selected_rows.InternalRemove (row);
5785                                 selectionChanged = true;
5786                         } else if (selected && !selected_rows.Contains (row)) {
5787                                 selected_rows.InternalAdd (row);
5788                                 selectionChanged = true;
5789                         }
5790
5791                         if (selectionChanged)
5792                                 OnSelectionChanged (EventArgs.Empty);
5793
5794                         Invalidate();
5795                 }
5796
5797                 protected override void WndProc (ref Message m)
5798                 {
5799                         base.WndProc (ref m);
5800                 }
5801
5802                 internal void InternalOnCellClick (DataGridViewCellEventArgs e)
5803                 {
5804                         OnCellClick (e);
5805                 }
5806
5807                 internal void InternalOnCellContentClick (DataGridViewCellEventArgs e)
5808                 {
5809                         OnCellContentClick (e);
5810                 }
5811
5812                 internal void InternalOnCellContentDoubleClick (DataGridViewCellEventArgs e)
5813                 {
5814                         OnCellContentDoubleClick (e);
5815                 }
5816
5817                 internal void InternalOnCellValueChanged (DataGridViewCellEventArgs e)
5818                 {
5819                         OnCellValueChanged (e);
5820                 }
5821
5822                 internal void InternalOnDataError (DataGridViewDataErrorEventArgs e)
5823                 {
5824                         /////////////// false? ////////////
5825                         OnDataError (false, e);
5826                 }
5827
5828                 internal void InternalOnMouseWheel (MouseEventArgs e)
5829                 {
5830                         OnMouseWheel (e);
5831                 }
5832
5833                 internal void OnHScrollBarScroll (object sender, ScrollEventArgs e)
5834                 {
5835                         int lastRightVisibleColumntIndex = Columns.Count - DisplayedColumnCount (false);
5836                         horizontalScrollingOffset = e.NewValue;
5837                         int left = 0;
5838
5839                         for (int index = 0; index < Columns.Count; index++) {
5840                                 DataGridViewColumn col = Columns[index];
5841
5842                                 if (col.Index >= lastRightVisibleColumntIndex) {
5843                                         first_col_index = lastRightVisibleColumntIndex;
5844                                         Invalidate ();
5845                                         OnScroll (e);
5846                                 } else if (e.NewValue < left + col.Width) {
5847                                         if (first_col_index != index) {
5848                                                 first_col_index = index;
5849                                                 Invalidate ();
5850                                                 OnScroll (e);
5851                                         }
5852
5853                                         return;
5854                                 }
5855
5856                                 left += col.Width;
5857                         }
5858                 }
5859
5860                 internal void OnVScrollBarScroll (object sender, ScrollEventArgs e)
5861                 {
5862                         verticalScrollingOffset = e.NewValue;
5863                         if (Rows.Count == 0)
5864                                 return;
5865
5866                         int top = 0;
5867                         int lastTopVisibleRowIndex = Rows.Count - DisplayedRowCount (false);
5868
5869                         for (int index = 0; index < Rows.Count; index++) {
5870                                 DataGridViewRow row = Rows[index];
5871                                 if (!row.Visible)
5872                                         continue;
5873
5874                                 if (row.Index >= lastTopVisibleRowIndex) {
5875                                         first_row_index = lastTopVisibleRowIndex;
5876                                         Invalidate ();
5877                                         OnScroll (e);
5878                                 } else if (e.NewValue < top + row.Height) {
5879                                         if (first_row_index != index) {
5880                                                 first_row_index = index;
5881                                                 Invalidate ();
5882                                                 OnScroll (e);
5883                                         }
5884
5885                                         return;
5886                                 }
5887
5888                                 top += row.Height;
5889                         }
5890
5891                         first_row_index = lastTopVisibleRowIndex;
5892                         Invalidate ();
5893                         OnScroll (e);
5894                 }
5895
5896                 internal void RaiseCellStyleChanged (DataGridViewCellEventArgs e) {
5897                         OnCellStyleChanged(e);
5898                 }
5899
5900                 internal void OnColumnCollectionChanged (object sender, CollectionChangeEventArgs e) {
5901                         switch (e.Action) {
5902                                 case CollectionChangeAction.Add:
5903                                         OnColumnAddedInternal(new DataGridViewColumnEventArgs(e.Element as DataGridViewColumn));
5904                                         break;
5905                                 case CollectionChangeAction.Remove:
5906                                         OnColumnPostRemovedInternal(new DataGridViewColumnEventArgs(e.Element as DataGridViewColumn));
5907                                         break;
5908                                 case CollectionChangeAction.Refresh:
5909                                         hover_cell = null;
5910                                         MoveCurrentCell (-1, -1, true, false, false, true);
5911                                         break;
5912                         }
5913                 }
5914
5915                 // Resizes all columns according to their AutoResizeMode property.
5916                 // First all the columns that aren't Filled are resized, then we resize all the Filled columns.
5917                 internal void AutoResizeColumnsInternal ()
5918                 {
5919                         for (int i = 0; i < Columns.Count; i++)
5920                                 AutoResizeColumnInternal (i, Columns [i].InheritedAutoSizeMode);
5921
5922                         AutoFillColumnsInternal ();
5923                 }
5924
5925                 internal void AutoFillColumnsInternal ()
5926                 {
5927                         float totalFillWeight = 0;
5928                         int FillCount = 0; // The number of columns that has AutoSizeMode.Fill set
5929                         int spaceLeft = ClientSize.Width - (verticalScrollBar.VisibleInternal ? verticalScrollBar.Width : 0);
5930
5931                         if (RowHeadersVisible) {
5932                                 spaceLeft -= RowHeadersWidth;
5933                         }
5934                         spaceLeft -= BorderWidth * 2;
5935
5936                         int [] fixed_widths = new int [Columns.Count];
5937                         int [] new_widths = new int [Columns.Count];
5938                         bool fixed_any = false;
5939
5940                         for (int i = 0; i < Columns.Count; i++) {
5941                                 DataGridViewColumn col = Columns [i];
5942
5943                                 if (!col.Visible)
5944                                         continue;
5945
5946                                 switch (col.InheritedAutoSizeMode) {
5947                                 case DataGridViewAutoSizeColumnMode.Fill:
5948                                         FillCount++;
5949                                         totalFillWeight += col.FillWeight;
5950                                         break;
5951                                 case DataGridViewAutoSizeColumnMode.AllCellsExceptHeader:
5952                                 case DataGridViewAutoSizeColumnMode.AllCells:
5953                                 case DataGridViewAutoSizeColumnMode.DisplayedCells:
5954                                 case DataGridViewAutoSizeColumnMode.DisplayedCellsExceptHeader:
5955                                 case DataGridViewAutoSizeColumnMode.None:
5956                                 case DataGridViewAutoSizeColumnMode.NotSet:
5957                                         spaceLeft -= Columns [i].Width;
5958                                         break;
5959                                 }
5960                         }
5961
5962                         spaceLeft = Math.Max (0, spaceLeft);
5963
5964                         do {
5965                                 fixed_any = false;
5966                                 for (int i = 0; i < columns.Count; i++) {
5967                                         DataGridViewColumn col = Columns [i];
5968                                         int width;
5969
5970                                         if (col.InheritedAutoSizeMode != DataGridViewAutoSizeColumnMode.Fill)
5971                                                 continue;
5972
5973                                         if (!col.Visible)
5974                                                 continue;
5975
5976                                         if (fixed_widths [i] != 0)
5977                                                 continue;
5978
5979                                         width = (totalFillWeight == 0) ? 0 : (int) Math.Round (spaceLeft * (col.FillWeight / totalFillWeight), 0);
5980
5981                                         if (width < 0)
5982                                                 width = 0;
5983
5984                                         if (width < col.MinimumWidth) {
5985                                                 width = col.MinimumWidth;
5986                                                 fixed_widths [i] = width;
5987                                                 fixed_any = true;
5988                                                 spaceLeft -= width;
5989                                                 totalFillWeight -= col.FillWeight;
5990                                         }
5991
5992                                         new_widths [i] = width;
5993                                 }
5994                         } while (fixed_any);
5995
5996                         for (int i = 0; i < columns.Count; i++) {
5997                                 if (Columns [i].InheritedAutoSizeMode != DataGridViewAutoSizeColumnMode.Fill)
5998                                         continue;
5999
6000                                 if (!Columns[i].Visible)
6001                                         continue;
6002
6003                                 Columns [i].Width = new_widths [i];
6004                         }
6005                 }
6006
6007                 internal void AutoResizeColumnInternal (int columnIndex, DataGridViewAutoSizeColumnMode mode)
6008                 {
6009                         // http://msdn2.microsoft.com/en-us/library/ms171605.aspx
6010                         int size = 0;
6011
6012                         DataGridViewColumn col = Columns [columnIndex];
6013
6014                         switch (mode) {
6015                         case DataGridViewAutoSizeColumnMode.Fill:
6016                                 return;
6017                         case DataGridViewAutoSizeColumnMode.AllCellsExceptHeader:
6018                         case DataGridViewAutoSizeColumnMode.AllCells:
6019                         case DataGridViewAutoSizeColumnMode.DisplayedCells:
6020                         case DataGridViewAutoSizeColumnMode.DisplayedCellsExceptHeader:
6021                                 size  = Math.Max (CalculateColumnCellWidth (columnIndex, col.InheritedAutoSizeMode),
6022                                                   col.HeaderCell.ContentBounds.Width);
6023                                 break;
6024                         case DataGridViewAutoSizeColumnMode.ColumnHeader:
6025                                 size = col.HeaderCell.ContentBounds.Width;
6026                                 break;
6027                         default:
6028                                 size = col.Width;
6029                                 break;
6030                         }
6031
6032                         if (size < 0)
6033                                 size = 0;
6034                         if (size < col.MinimumWidth)
6035                                 size = col.MinimumWidth;
6036
6037                         col.Width = size;
6038                 }
6039
6040                 internal int CalculateColumnCellWidth (int index, DataGridViewAutoSizeColumnMode mode)
6041                 {
6042                         int first_row = 0;
6043                         int last_row = Rows.Count;
6044                         int result = 0;
6045
6046                         if (mode == DataGridViewAutoSizeColumnMode.DisplayedCells ||
6047                             mode == DataGridViewAutoSizeColumnMode.DisplayedCellsExceptHeader) {
6048                                 first_row = first_row_index;
6049                                 last_row = DisplayedRowCount (true);;
6050                         }
6051
6052                         for (int i = first_row; i < last_row; i++) {
6053                                 if (!Rows[i].Visible)
6054                                         continue;
6055
6056                                 int cell_width = Rows[i].Cells[index].PreferredSize.Width;
6057                                 result = Math.Max (result, cell_width);
6058                         }
6059
6060                         return result;
6061                 }
6062
6063                 Rectangle GetHeaderCellBounds (DataGridViewHeaderCell cell)
6064                 {
6065                         Rectangle bounds = new Rectangle (ClientRectangle.Location, cell.Size);
6066                         if (cell is DataGridViewColumnHeaderCell) {
6067                                 if (RowHeadersVisible)
6068                                         bounds.X += RowHeadersWidth;
6069                                 List<DataGridViewColumn> sortedColumns = columns.ColumnDisplayIndexSortedArrayList;
6070                                 for (int index = first_col_index; index < sortedColumns.Count; index++) {
6071                                         DataGridViewColumn column = sortedColumns [index];
6072                                         if (column.Index == cell.ColumnIndex)
6073                                                 break;
6074                                         bounds.X += column.Width;
6075                                 }
6076                         } else {
6077                                 if (ColumnHeadersVisible)
6078                                         bounds.Y += ColumnHeadersHeight;
6079                                 for (int index = first_row_index; index < Rows.Count; index++) {
6080                                         DataGridViewRow row = GetRowInternal (index);
6081                                         if (row.HeaderCell == cell)
6082                                                 break;
6083                                         bounds.Y += row.Height;
6084                                 }
6085                         }
6086                         return bounds;
6087                 }
6088
6089                 private void PrepareEditingRow (bool cell_changed, bool column_changed)
6090                 {
6091                         if (new_row_editing)
6092                                 return;
6093
6094                         bool show = false;
6095
6096                         show = ColumnCount > 0 && AllowUserToAddRows;
6097
6098                         if (!show) {
6099                                 RemoveEditingRow ();
6100                         } else if (show) {
6101                                 if (editing_row != null && (cell_changed || column_changed)) {
6102                                         // The row changed, it's no longer an editing row.
6103                                         //    or
6104                                         // The number of columns has changed, we need a new editing row.
6105                                         RemoveEditingRow ();
6106                                 }
6107                                 if (editing_row == null) {
6108                                         editing_row = RowTemplateFull;
6109                                         Rows.AddInternal (editing_row, false);
6110                                 }
6111                         }
6112                 }
6113
6114                 internal void RemoveEditingRow ()
6115                 {
6116                         if (editing_row != null) {
6117                                 if (Rows.Contains (editing_row))
6118                                     Rows.RemoveInternal (editing_row);
6119                                 editing_row = null;
6120                         }
6121                 }
6122
6123                 internal DataGridViewRow EditingRow {
6124                         get { return editing_row; }
6125                 }
6126
6127                 private void AddBoundRow (object element)
6128                 {
6129                         // Don't add rows if there are no columns
6130                         if (ColumnCount == 0)
6131                                 return;
6132
6133                         DataGridViewRow row = (DataGridViewRow)RowTemplateFull;
6134                         rows.AddInternal (row, false);
6135                 }
6136
6137                 private bool IsColumnAlreadyBound (string name)
6138                 {
6139                         foreach (DataGridViewColumn col in Columns)
6140                                 if (String.Compare (col.DataPropertyName, name, true) == 0)
6141                                         return true;
6142
6143                         return false;
6144                 }
6145
6146                 private DataGridViewColumn CreateColumnByType (Type type)
6147                 {
6148                         if (type == typeof (bool))
6149                                 return new DataGridViewCheckBoxColumn ();
6150                         else if (typeof(Bitmap).IsAssignableFrom (type))
6151                                 return new DataGridViewImageColumn ();
6152
6153                         return new DataGridViewTextBoxColumn ();
6154                 }
6155
6156                 private void ClearBinding ()
6157                 {
6158                         if (IsCurrentCellInEditMode && !EndEdit ())
6159                                 CancelEdit ();
6160                         MoveCurrentCell (-1, -1, false, false, false, true);
6161
6162                         if (DataManager != null) {
6163                                 DataManager.ListChanged -= OnListChanged;
6164                                 DataManager.PositionChanged -= OnListPositionChanged;
6165                                 columns.ClearAutoGeneratedColumns ();
6166                                 rows.Clear ();
6167                                 RemoveEditingRow ();
6168                         }
6169                 }
6170
6171                 private void ResetRows ()
6172                 {
6173                         rows.Clear ();
6174                         RemoveEditingRow ();
6175                         if (DataManager != null) {
6176                                 foreach (object element in DataManager.List)
6177                                         AddBoundRow (element);
6178                         }
6179                         PrepareEditingRow (false, true);
6180                         OnListPositionChanged (this, EventArgs.Empty);
6181                 }
6182
6183                 private void DoBinding ()
6184                 {
6185                         /* The System.Windows.Forms.DataGridView class supports the standard Windows Forms data-binding model. This means the data source can be of any type that implements:
6186                          - the System.Collections.IList interface, including one-dimensional arrays.
6187                          - the System.ComponentModel.IListSource interface, such as the System.Data.DataTable and System.Data.DataSet classes.
6188                          - the System.ComponentModel.IBindingList interface, such as the System.ComponentModel.Collections.BindingList<> class.
6189                          - the System.ComponentModel.IBindingListView interface, such as the System.Windows.Forms.BindingSource class.
6190                         */
6191
6192                         if (dataSource != null && DataManager != null) {
6193                                 if (autoGenerateColumns) {
6194                                         is_autogenerating_columns = true;
6195
6196                                         foreach (PropertyDescriptor property in DataManager.GetItemProperties()) {
6197                                                 // This keeps out things like arrays
6198                                                 if ((typeof(ICollection).IsAssignableFrom (property.PropertyType)))
6199                                                         continue;
6200                                                 if (!property.IsBrowsable)
6201                                                         continue;
6202
6203                                                 if (IsColumnAlreadyBound (property.Name))
6204                                                         continue;
6205
6206                                                 DataGridViewColumn col = CreateColumnByType (property.PropertyType);
6207                                                 col.Name = property.DisplayName;
6208                                                 col.DataPropertyName = property.Name;
6209                                                 col.ReadOnly = !DataManager.AllowEdit || property.IsReadOnly;
6210                                                 col.ValueType = property.PropertyType;
6211                                                 col.AutoGenerated = true;
6212                                                 columns.Add (col);
6213                                         }
6214
6215                                         is_autogenerating_columns = false;
6216                                 }
6217
6218                                 // DataBind both autogenerated and not columns if there is a matching property
6219                                 foreach (DataGridViewColumn column in columns)
6220                                         column.DataColumnIndex = FindDataColumnIndex (column);
6221
6222                                 foreach (object element in DataManager.List)
6223                                         AddBoundRow (element);
6224
6225                                 DataManager.ListChanged += OnListChanged;
6226                                 DataManager.PositionChanged += OnListPositionChanged;
6227                                 OnDataBindingComplete (new DataGridViewBindingCompleteEventArgs (ListChangedType.Reset));
6228                                 OnListPositionChanged (this, EventArgs.Empty);
6229                         } else {
6230                                 if (Rows.Count > 0 && Columns.Count > 0)
6231                                         MoveCurrentCell (0, 0, true, false, false, false);
6232                         }
6233
6234                         PrepareEditingRow (false, true);
6235                 }
6236
6237                 private void MoveCurrentCell (int x, int y, bool select, bool isControl, bool isShift, bool scroll)
6238                 {
6239                         if (x == -1 || y == -1)
6240                                 x = y = -1;
6241                         else {
6242                                 if (x < 0 || x > Columns.Count - 1)
6243                                         throw new ArgumentOutOfRangeException ("x");
6244                                 if (y < 0 || y > Rows.Count - 1)
6245                                         throw new ArgumentOutOfRangeException ("y");
6246
6247                                 if (!Rows[y].Visible) {
6248                                         for (int i = y; i < Rows.Count; i++) {
6249                                                 if (Rows[i].Visible) {
6250                                                         y = i;
6251                                                         break;
6252                                                 }
6253                                         }
6254                                 }
6255
6256                                 if (!Columns[x].Visible) {
6257                                         for (int i = x; i < Columns.Count; i++) {
6258                                                 if (Columns[i].Visible) {
6259                                                         x = i;
6260                                                         break;
6261                                                 }
6262                                         }
6263                                 }
6264
6265                                 // in case either no visible columns or rows
6266                                 if (!Rows[y].Visible || !Columns[x].Visible)
6267                                         x = y = -1;
6268                         }
6269
6270                         if (!SetCurrentCellAddressCore (x, y, true, false, false)) {
6271                                 ClearSelection ();
6272                                 return;
6273                         }
6274                         if (x == -1 && y == -1) {
6275                                 ClearSelection ();
6276                                 return;
6277                         }
6278
6279                         bool full_row_selected = Rows.SharedRow(CurrentCellAddress.Y).Selected;
6280                         bool full_col_selected = Columns[CurrentCellAddress.X].Selected;
6281
6282                         // Move Selection
6283                         DataGridViewSelectionMode mode = selectionMode;
6284
6285                         // If we are row header select and we clicked a row header, use full row
6286                         if (mode == DataGridViewSelectionMode.RowHeaderSelect && (x == -1 || (full_row_selected && CurrentCellAddress.X == x)))
6287                                 mode = DataGridViewSelectionMode.FullRowSelect;
6288                         else if (mode == DataGridViewSelectionMode.RowHeaderSelect)
6289                                 mode = DataGridViewSelectionMode.CellSelect;
6290
6291                         // If we are col header select and we clicked a col header, use full col
6292                         if (mode == DataGridViewSelectionMode.ColumnHeaderSelect && (y == -1 || (full_col_selected && CurrentCellAddress.Y == y)))
6293                                 mode = DataGridViewSelectionMode.FullColumnSelect;
6294                         else if (mode == DataGridViewSelectionMode.ColumnHeaderSelect)
6295                                 mode = DataGridViewSelectionMode.CellSelect;
6296
6297                         // If the current cell isn't visible, scroll to it
6298                         if (scroll) {
6299                                 int disp_x = ColumnIndexToDisplayIndex (x);
6300                                 bool scrollbarsRefreshed = false;
6301                                 int displayedColumnsCount = DisplayedColumnCount (false);
6302                                 int delta_x = 0;
6303
6304                                 // The trick here is that in order to avoid unnecessary calculations each time a row/column
6305                                 // is added/removed we recalculate the whole grid size just before the scroll to selection.
6306                                 if (disp_x < first_col_index) {
6307                                         RefreshScrollBars ();
6308                                         scrollbarsRefreshed = true;
6309
6310                                         if (disp_x == 0)
6311                                                 delta_x = horizontalScrollBar.Value;
6312                                         else {
6313                                                 // in case the column got removed
6314                                                 if (first_col_index >= ColumnCount)
6315                                                         first_col_index = ColumnCount - 1;
6316                                                 for (int i = disp_x; i < first_col_index; i++)
6317                                                         delta_x += Columns[ColumnDisplayIndexToIndex (i)].Width;
6318                                         }
6319
6320                                         horizontalScrollBar.SafeValueSet (horizontalScrollBar.Value - delta_x);
6321                                         OnHScrollBarScroll (this, new ScrollEventArgs (ScrollEventType.ThumbPosition, horizontalScrollBar.Value));
6322                                 } else if (disp_x > first_col_index + displayedColumnsCount - 1) {
6323                                         RefreshScrollBars ();
6324                                         scrollbarsRefreshed = true;
6325
6326                                         if (disp_x == Columns.Count - 1)
6327                                                 delta_x = horizontalScrollBar.Maximum - horizontalScrollBar.Value;
6328                                         else
6329                                                 for (int i = first_col_index + displayedColumnsCount - 1; i < disp_x && i != -1; i++)
6330                                                         delta_x += Columns[ColumnDisplayIndexToIndex (i)].Width;
6331
6332                                         horizontalScrollBar.SafeValueSet (horizontalScrollBar.Value + delta_x);
6333                                         OnHScrollBarScroll (this, new ScrollEventArgs (ScrollEventType.ThumbPosition, horizontalScrollBar.Value));
6334                                 }
6335
6336                                 int disp_y = y;
6337                                 int displayedRowsCount = DisplayedRowCount (false);
6338                                 int delta_y = 0;
6339
6340                                 if (disp_y < first_row_index) {
6341                                         if (!scrollbarsRefreshed)
6342                                                 RefreshScrollBars ();
6343
6344                                         if (disp_y == 0)
6345                                                 delta_y = verticalScrollBar.Value;
6346                                         else {
6347                                                 // in case the row got removed
6348                                                 if (first_row_index >= RowCount)
6349                                                         first_row_index = RowCount - 1;
6350                                                 for (int i = disp_y; i < first_row_index; i++)
6351                                                         delta_y += GetRowInternal (i).Height;
6352                                         }
6353
6354                                         verticalScrollBar.SafeValueSet (verticalScrollBar.Value - delta_y);
6355                                         OnVScrollBarScroll (this, new ScrollEventArgs (ScrollEventType.ThumbPosition, verticalScrollBar.Value));
6356                                 } else if (disp_y > first_row_index + displayedRowsCount - 1) {
6357                                         if (!scrollbarsRefreshed)
6358                                                 RefreshScrollBars ();
6359
6360                                         if (disp_y == Rows.Count - 1)
6361                                                 delta_y = verticalScrollBar.Maximum - verticalScrollBar.Value;
6362                                         else
6363                                                 for (int i = first_row_index + displayedRowsCount - 1; i < disp_y; i++)
6364                                                         delta_y += GetRowInternal (i).Height;
6365
6366                                         verticalScrollBar.SafeValueSet (verticalScrollBar.Value + delta_y);
6367                                         OnVScrollBarScroll (this, new ScrollEventArgs (ScrollEventType.ThumbPosition, verticalScrollBar.Value));
6368                                 }
6369                         }
6370
6371                         if (!select)
6372                                 return;
6373
6374                         // Clear old selection unless multi-selecting
6375                         if (!isShift)
6376                                 ClearSelection ();
6377
6378                         switch (mode) {
6379                                 case DataGridViewSelectionMode.CellSelect:
6380                                         SetSelectedCellCore (x, y, true);
6381                                         break;
6382                                 case DataGridViewSelectionMode.FullRowSelect:
6383                                         SetSelectedRowCore (y, true);
6384                                         break;
6385                                 case DataGridViewSelectionMode.FullColumnSelect:
6386                                         SetSelectedColumnCore (x, true);
6387                                         break;
6388                         }
6389
6390                         Invalidate ();
6391                 }
6392
6393                 private int ColumnIndexToDisplayIndex (int index)
6394                 {
6395                         if (index == -1)
6396                                 return index;
6397                         return Columns[index].DisplayIndex;
6398                 }
6399
6400                 private int ColumnDisplayIndexToIndex (int index)
6401                 {
6402                         return Columns.ColumnDisplayIndexSortedArrayList[index].Index;
6403                 }
6404
6405                 private void OnListChanged (object sender, ListChangedEventArgs args)
6406                 {
6407                         switch (args.ListChangedType) {
6408                                 case ListChangedType.ItemAdded:
6409                                         AddBoundRow (DataManager[args.NewIndex]);
6410                                         break;
6411                                 case ListChangedType.ItemDeleted:
6412                                         Rows.RemoveAtInternal (args.NewIndex);
6413                                         break;
6414                                 case ListChangedType.ItemChanged:
6415                                         break;
6416                                 default:
6417                                         ResetRows ();
6418                                         break;
6419                         }
6420
6421                         Invalidate ();
6422                 }
6423
6424                 private void OnListPositionChanged (object sender, EventArgs args)
6425                 {
6426                         if (Rows.Count > 0 && Columns.Count > 0 && DataManager.Position != -1)
6427                                 MoveCurrentCell (currentCell != null ? currentCell.ColumnIndex : 0, DataManager.Position,
6428                                                  true, false, false, true);
6429                         else
6430                                 MoveCurrentCell (-1, -1, true, false, false, true);
6431                 }
6432
6433                 private void ReBind ()
6434                 {
6435                         if (!is_binding) {
6436                                 SuspendLayout ();
6437
6438                                 is_binding = true;
6439                                 ClearBinding ();
6440                                 DoBinding ();
6441                                 is_binding = false;
6442
6443                                 ResumeLayout (true);
6444                                 Invalidate ();
6445                         }
6446                 }
6447
6448                 private bool MouseOverColumnResize (int col, int mousex)
6449                 {
6450                         if (!allowUserToResizeColumns)
6451                                 return false;
6452
6453                         Rectangle col_bounds = GetCellDisplayRectangle (col, 0, false);
6454
6455                         if (mousex >= col_bounds.Right - 4 && mousex <= col_bounds.Right)
6456                                 return true;
6457
6458                         return false;
6459                 }
6460
6461                 private bool MouseOverRowResize (int row, int mousey)
6462                 {
6463                         if (!allowUserToResizeRows)
6464                                 return false;
6465
6466                         Rectangle row_bounds = GetCellDisplayRectangle (0, row, false);
6467
6468                         if (mousey >= row_bounds.Bottom - 4 && mousey <= row_bounds.Bottom)
6469                                 return true;
6470
6471                         return false;
6472                 }
6473
6474                 private void DrawVerticalResizeLine (int x)
6475                 {
6476                         Rectangle splitter = new Rectangle (x, Bounds.Y + 3 + (ColumnHeadersVisible ? ColumnHeadersHeight : 0), 1, Bounds.Height - 3 - (ColumnHeadersVisible ? ColumnHeadersHeight : 0));
6477                         XplatUI.DrawReversibleRectangle (Handle, splitter, 2);
6478                 }
6479
6480                 private void DrawHorizontalResizeLine (int y)
6481                 {
6482                         Rectangle splitter = new Rectangle (Bounds.X + 3 + (RowHeadersVisible ? RowHeadersWidth : 0), y, Bounds.Width - 3 + (RowHeadersVisible ? RowHeadersWidth : 0), 1);
6483                         XplatUI.DrawReversibleRectangle (Handle, splitter, 2);
6484                 }
6485
6486                 #region Stuff for ToolTips
6487                 private void MouseEnteredErrorIcon (DataGridViewCell item)
6488                 {
6489                         tooltip_currently_showing = item;
6490                         ToolTipTimer.Start ();
6491                 }
6492
6493                 private void MouseLeftErrorIcon (DataGridViewCell item)
6494                 {
6495                         ToolTipTimer.Stop ();
6496                         ToolTipWindow.Hide (this);
6497                         tooltip_currently_showing = null;
6498                 }
6499
6500                 private Timer ToolTipTimer {
6501                         get {
6502                                 if (tooltip_timer == null) {
6503                                         tooltip_timer = new Timer ();
6504                                         tooltip_timer.Enabled = false;
6505                                         tooltip_timer.Interval = 500;
6506                                         tooltip_timer.Tick += new EventHandler (ToolTipTimer_Tick);
6507                                 }
6508
6509                                 return tooltip_timer;
6510                         }
6511                 }
6512
6513                 private ToolTip ToolTipWindow {
6514                         get {
6515                                 if (tooltip_window == null)
6516                                         tooltip_window = new ToolTip ();
6517
6518                                 return tooltip_window;
6519                         }
6520                 }
6521
6522                 private void ToolTipTimer_Tick (object o, EventArgs args)
6523                 {
6524                         string tooltip = tooltip_currently_showing.ErrorText;
6525
6526                         if (!string.IsNullOrEmpty (tooltip))
6527                                 ToolTipWindow.Present (this, tooltip);
6528
6529                         ToolTipTimer.Stop ();
6530                 }
6531                 #endregion
6532
6533                 private class ColumnSorter : IComparer
6534                 {
6535                         int column;
6536                         int direction = 1;
6537                         bool numeric_sort;
6538
6539                         public ColumnSorter (DataGridViewColumn column, ListSortDirection direction, bool numeric)
6540                         {
6541                                 this.column = column.Index;
6542                                 this.numeric_sort = numeric;
6543
6544                                 if (direction == ListSortDirection.Descending)
6545                                         this.direction = -1;
6546                         }
6547
6548                         #region IComparer Members
6549                         public int Compare (object x, object y)
6550                         {
6551                                 DataGridViewRow row1 = (DataGridViewRow)x;
6552                                 DataGridViewRow row2 = (DataGridViewRow)y;
6553
6554                                 if (row1.Cells[column].ValueType == typeof (DateTime) && row2.Cells[column].ValueType == typeof (DateTime))
6555                                         return DateTime.Compare ((DateTime)row1.Cells[column].Value, (DateTime)row2.Cells[column].Value) * direction;
6556
6557                                 object val1 = row1.Cells[column].FormattedValue;
6558                                 object val2 = row2.Cells[column].FormattedValue;
6559                                 object val1NullValue = row1.Cells[column].InheritedStyle.NullValue;
6560                                 object val2NullValue = row2.Cells[column].InheritedStyle.NullValue;
6561
6562                                 if (val1 == val1NullValue && val2 == val2NullValue)
6563                                         return 0;
6564                                 if (val1 == val1NullValue)
6565                                         return direction;
6566                                 if (val2 == val2NullValue)
6567                                         return -1 * direction;
6568
6569                                 if (numeric_sort)
6570                                         return (int)(double.Parse (val1.ToString ()) - double.Parse (val2.ToString ())) * direction;
6571                                 else
6572                                         return string.Compare (val1.ToString (), val2.ToString ()) * direction;
6573                         }
6574                         #endregion
6575                 }
6576
6577                 public sealed class HitTestInfo {
6578
6579                         public static readonly HitTestInfo Nowhere = new HitTestInfo(-1, -1, -1, -1, DataGridViewHitTestType.None);
6580
6581                         private int columnIndex;
6582                         private int columnX;
6583                         private int rowIndex;
6584                         private int rowY;
6585                         private DataGridViewHitTestType type;
6586
6587                         internal HitTestInfo (int columnIndex, int columnX, int rowIndex, int rowY, DataGridViewHitTestType type) {
6588                                 this.columnIndex = columnIndex;
6589                                 this.columnX = columnX;
6590                                 this.rowIndex = rowIndex;
6591                                 this.rowY = rowY;
6592                                 this.type = type;
6593                         }
6594
6595                         public int ColumnIndex {
6596                                 get { return columnIndex; }
6597                         }
6598
6599                         public int ColumnX {
6600                                 get { return columnX; }
6601                         }
6602
6603                         public int RowIndex {
6604                                 get { return rowIndex; }
6605                         }
6606
6607                         public int RowY {
6608                                 get { return rowY; }
6609                         }
6610
6611                         public DataGridViewHitTestType Type {
6612                                 get { return type; }
6613                         }
6614
6615                         public override bool Equals (object value) {
6616                                 if (value is HitTestInfo) {
6617                                         HitTestInfo aux = (HitTestInfo) value;
6618                                         if (aux.columnIndex == columnIndex && aux.columnX == columnX && aux.rowIndex == rowIndex && aux.rowY == rowY && aux.type == type) {
6619                                                 return true;
6620                                         }
6621                                 }
6622                                 return false;
6623                         }
6624
6625                         public override int GetHashCode () {
6626                                 return base.GetHashCode();
6627                         }
6628
6629                         public override string ToString () {
6630                                 return string.Format ("Type:{0}, Column:{1}, Row:{2}", type, columnIndex, rowIndex);
6631                         }
6632
6633                 }
6634
6635                 [ComVisible (false)]
6636                 public class DataGridViewControlCollection : Control.ControlCollection
6637                 {
6638                         private DataGridView owner;
6639
6640                         public DataGridViewControlCollection (DataGridView owner) : base (owner)
6641                         {
6642                                 this.owner = owner;
6643                         }
6644
6645                         public override void Clear ()
6646                         {
6647                                 //
6648                                 // This is severely buggy, just as MS' implementation is.
6649                                 //
6650                                 for (int i = 0; i < Count; i++) {
6651                                         Remove (this [i]);
6652                                 }
6653                         }
6654
6655                         public void CopyTo (Control [] array, int index)
6656                         {
6657                                 base.CopyTo (array, index);
6658                         }
6659
6660                         public void Insert (int index, Control value)
6661                         {
6662                                 throw new NotSupportedException ();
6663                         }
6664
6665                         public override void Remove (Control value)
6666                         {
6667                                 if (value == owner.horizontalScrollBar)
6668                                         return;
6669
6670                                 if (value == owner.verticalScrollBar)
6671                                         return;
6672
6673                                 if (value == owner.editingControl)
6674                                         return;
6675
6676                                 base.Remove (value);
6677                         }
6678
6679                         internal void RemoveInternal (Control value)
6680                         {
6681                                 base.Remove (value);
6682                         }
6683
6684
6685                 }
6686
6687                 [ComVisibleAttribute(true)]
6688                 protected class DataGridViewAccessibleObject : ControlAccessibleObject {
6689
6690                         public DataGridViewAccessibleObject (DataGridView owner) : base (owner){
6691                         }
6692
6693                         public override AccessibleRole Role {
6694                                 get { return base.Role; }
6695                         }
6696
6697                         public override string Name {
6698                                 get { return base.Name; }
6699                         }
6700
6701                         public override AccessibleObject GetChild (int index) {
6702                                 return base.GetChild(index);
6703                         }
6704
6705                         public override int GetChildCount () {
6706                                 return base.GetChildCount();
6707                         }
6708
6709                         public override AccessibleObject GetFocused () {
6710                                 return base.GetFocused();
6711                         }
6712
6713                         public override AccessibleObject GetSelected () {
6714                                 return base.GetSelected();
6715                         }
6716
6717                         public override AccessibleObject HitTest (int x, int y) {
6718                                 return base.HitTest(x, y);
6719                         }
6720
6721                         public override AccessibleObject Navigate( AccessibleNavigation navigationDirection) {
6722                                 return base.Navigate(navigationDirection);
6723                         }
6724
6725                 }
6726
6727                 [ComVisible (true)]
6728                 protected class DataGridViewTopRowAccessibleObject : AccessibleObject
6729                 {
6730                         #region Constructors
6731                         public DataGridViewTopRowAccessibleObject ()
6732                         {
6733                         }
6734
6735                         public DataGridViewTopRowAccessibleObject (DataGridView owner)
6736                         {
6737                                 this.owner = owner;
6738                         }
6739                         #endregion
6740
6741                         #region Public Methods
6742                         public override AccessibleObject GetChild (int index)
6743                         {
6744                                 return base.GetChild (index);
6745                         }
6746
6747                         public override int GetChildCount ()
6748                         {
6749                                 return base.GetChildCount ();
6750                         }
6751
6752                         public override AccessibleObject Navigate (AccessibleNavigation navigationDirection)
6753                         {
6754                                 return base.Navigate (navigationDirection);
6755                         }
6756                         #endregion
6757
6758                         #region Public Properties
6759                         public override Rectangle Bounds {
6760                                 get { return base.Bounds; }
6761                         }
6762
6763                         public override string Name {
6764                                 get { return base.Name; }
6765                         }
6766
6767                         public DataGridView Owner {
6768                                 get { return (DataGridView)owner; }
6769                                 set {
6770                                         if (owner != null)
6771                                                 throw new InvalidOperationException ("owner has already been set");
6772
6773                                         owner = value;
6774                                 }
6775                         }
6776
6777                         public override AccessibleObject Parent {
6778                                 get { return base.Parent; }
6779                         }
6780
6781                         public override AccessibleRole Role {
6782                                 get { return base.Role; }
6783                         }
6784
6785                         public override string Value {
6786                                 get { return base.Value; }
6787                         }
6788                         #endregion
6789                 }
6790         }
6791 }