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 //
  25
  26 #if NET_2_0
  27
  28 using System;
  29 using System.ComponentModel;
  30 using System.Runtime.InteropServices;
  31 using System.Drawing;
  32 using System.Reflection;
  33 using System.Collections;
  34 using System.Data;
  35 using System.Collections.Generic;
  36
  37 namespace System.Windows.Forms {
  38
  39         [ComVisibleAttribute(true)]
  40         [ClassInterfaceAttribute(ClassInterfaceType.AutoDispatch)]
  41         [Designer("System.Windows.Forms.Design.DataGridViewDesigner, " + Consts.AssemblySystem_Design, "System.ComponentModel.Design.IDesigner")]
  42         [Editor("System.Windows.Forms.Design.DataGridViewComponentEditor, " + Consts.AssemblySystem_Design, typeof (System.ComponentModel.ComponentEditor))]
  43         [ComplexBindingProperties ("DataSource", "DataMember")]
  44         [DefaultEvent ("CellContentClick")]
  45         [Docking (DockingBehavior.Ask)]
  46         public class DataGridView : Control, ISupportInitialize, IBindableComponent, IDropTarget
  47         {
  48
  49                 private DataGridViewAdvancedBorderStyle adjustedTopLeftHeaderBorderStyle;
  50                 private DataGridViewAdvancedBorderStyle advancedCellBorderStyle;
  51                 private DataGridViewAdvancedBorderStyle advancedColumnHeadersBorderStyle;
  52                 private DataGridViewAdvancedBorderStyle advancedRowHeadersBorderStyle;
  53                 private bool allowUserToAddRows;
  54                 private bool allowUserToDeleteRows;
  55                 private bool allowUserToOrderColumns;
  56                 private bool allowUserToResizeColumns;
  57                 private bool allowUserToResizeRows;
  58                 private DataGridViewCellStyle alternatingRowsDefaultCellStyle;
  59                 private Point anchor_cell;
  60                 private bool autoGenerateColumns;
  61                 private bool autoSize;
  62                 private DataGridViewAutoSizeColumnsMode autoSizeColumnsMode;
  63                 private DataGridViewAutoSizeRowsMode autoSizeRowsMode;
  64                 private Color backColor;
  65                 private Color backgroundColor;
  66                 private Image backgroundImage;
  67                 private BorderStyle borderStyle;
  68                 private DataGridViewCellBorderStyle cellBorderStyle;
  69                 private DataGridViewClipboardCopyMode clipboardCopyMode;
  70                 private DataGridViewHeaderBorderStyle columnHeadersBorderStyle;
  71                 private DataGridViewCellStyle columnHeadersDefaultCellStyle;
  72                 private int columnHeadersHeight;
  73                 private DataGridViewColumnHeadersHeightSizeMode columnHeadersHeightSizeMode;
  74                 private bool columnHeadersVisible;
  75                 private DataGridViewColumnCollection columns;
  76                 private DataGridViewCell currentCell;
  77                 private Point currentCellAddress;
  78                 private DataGridViewRow currentRow;
  79                 private string dataMember;
  80                 private object dataSource;
  81                 private DataGridViewCellStyle defaultCellStyle;
  82                 //private Control editingControl;
  83                 private DataGridViewEditMode editMode;
  84                 private bool enableHeadersVisualStyles = true;
  85                 private DataGridViewCell firstDisplayedCell;
  86                 private int firstDisplayedScrollingColumnHiddenWidth;
  87                 private int firstDisplayedScrollingColumnIndex;
  88                 private int firstDisplayedScrollingRowIndex;
  89                 private Color gridColor = Color.FromKnownColor(KnownColor.ControlDark);
  90                 private int horizontalScrollingOffset;
  91                 private DataGridViewCell hover_cell = null;
  92                 private bool isCurrentCellDirty;
  93                 //private bool isCurrentRowDirty;
  94                 private bool multiSelect;
  95                 private bool readOnly;
  96                 private DataGridViewHeaderBorderStyle rowHeadersBorderStyle;
  97                 private DataGridViewCellStyle rowHeadersDefaultCellStyle;
  98                 private bool rowHeadersVisible;
  99                 private int rowHeadersWidth;
 100                 private DataGridViewRowHeadersWidthSizeMode rowHeadersWidthSizeMode;
 101                 private DataGridViewRowCollection rows;
 102                 private DataGridViewCellStyle rowsDefaultCellStyle;
 103                 private DataGridViewRow rowTemplate;
 104                 private ScrollBars scrollBars;
 105                 private DataGridViewSelectionMode selectionMode;
 106                 private bool showCellErrors;
 107                 private bool showCellToolTips;
 108                 private bool showEditingIcon;
 109                 private bool showRowErrors;
 110                 private DataGridViewColumn sortedColumn = null;
 111                 private SortOrder sortOrder;
 112                 private bool standardTab;
 113                 private DataGridViewHeaderCell topLeftHeaderCell;
 114                 private Cursor userSetCursor;
 115                 private int verticalScrollingOffset;
 116                 private bool virtualMode;
 117                 private HScrollBar horizontalScrollBar;
 118                 private VScrollBar verticalScrollBar;
 119                 private Control editingControl;
 120                 private bool new_row_commited = true;
 121
 122                 // These are used to implement selection behaviour with SHIFT pressed.
 123                 private int selected_row = -1;
 124                 private int selected_column = -1;
 125
 126                 // Stuff for error Tooltips
 127                 private Timer tooltip_timer;
 128                 private ToolTip tooltip_window;
 129                 private DataGridViewCell tooltip_currently_showing;
 130
 131                 private DataGridViewSelectedRowCollection selected_rows;
 132                 private DataGridViewSelectedColumnCollection selected_columns;
 133                 private DataGridViewRow editing_row;
 134
 135                 private int gridWidth;
 136                 private int gridHeight;
 137
 138                 DataGridViewHeaderCell pressed_header_cell;
 139                 DataGridViewHeaderCell entered_header_cell;
 140
 141                 // For column/row resizing via mouse
 142                 private bool column_resize_active = false;
 143                 private bool row_resize_active = false;
 144                 private int resize_band = -1;
 145                 private int resize_band_start = 0;
 146                 private int resize_band_delta = 0;
 147
 148                 public DataGridView ()
 149                 {
 150                         SetStyle (ControlStyles.Opaque, true);
 151                         //SetStyle (ControlStyles.UserMouse, true);
 152                         SetStyle (ControlStyles.OptimizedDoubleBuffer, true);
 153
 154                         adjustedTopLeftHeaderBorderStyle = new DataGridViewAdvancedBorderStyle();
 155                         adjustedTopLeftHeaderBorderStyle.All = DataGridViewAdvancedCellBorderStyle.Single;
 156                         advancedCellBorderStyle = new DataGridViewAdvancedBorderStyle();
 157                         advancedCellBorderStyle.All = DataGridViewAdvancedCellBorderStyle.Single;
 158                         advancedColumnHeadersBorderStyle = new DataGridViewAdvancedBorderStyle();
 159                         advancedColumnHeadersBorderStyle.All = DataGridViewAdvancedCellBorderStyle.Single;
 160                         advancedRowHeadersBorderStyle = new DataGridViewAdvancedBorderStyle();
 161                         advancedRowHeadersBorderStyle.All = DataGridViewAdvancedCellBorderStyle.Single;
 162                         alternatingRowsDefaultCellStyle = new DataGridViewCellStyle();
 163                         allowUserToAddRows = true;
 164                         allowUserToDeleteRows = true;
 165                         allowUserToOrderColumns = false;
 166                         allowUserToResizeColumns = true;
 167                         allowUserToResizeRows = true;
 168                         autoGenerateColumns = true;
 169                         autoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.None;
 170                         autoSizeRowsMode = DataGridViewAutoSizeRowsMode.None;
 171                         backColor = Control.DefaultBackColor;
 172                         backgroundColor = SystemColors.AppWorkspace;
 173                         borderStyle = BorderStyle.FixedSingle;
 174                         cellBorderStyle = DataGridViewCellBorderStyle.Single;
 175                         clipboardCopyMode = DataGridViewClipboardCopyMode.EnableWithAutoHeaderText;
 176                         columnHeadersBorderStyle = DataGridViewHeaderBorderStyle.Single;
 177                         columnHeadersDefaultCellStyle = new DataGridViewCellStyle();
 178                         columnHeadersDefaultCellStyle.BackColor = SystemColors.Control;
 179                         columnHeadersDefaultCellStyle.ForeColor = SystemColors.WindowText;
 180                         columnHeadersDefaultCellStyle.SelectionBackColor = SystemColors.Highlight;
 181                         columnHeadersDefaultCellStyle.SelectionForeColor = SystemColors.HighlightText;
 182                         columnHeadersDefaultCellStyle.Font = this.Font;
 183                         columnHeadersDefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleLeft;
 184                         columnHeadersDefaultCellStyle.WrapMode = DataGridViewTriState.True;
 185                         columnHeadersHeight = 23;
 186                         columnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.EnableResizing;
 187                         columnHeadersVisible = true;
 188                         columns = CreateColumnsInstance();
 189                         columns.CollectionChanged += OnColumnCollectionChanged;
 190                         dataMember = String.Empty;
 191                         defaultCellStyle = new DataGridViewCellStyle();
 192                         defaultCellStyle.BackColor = SystemColors.Window;
 193                         defaultCellStyle.ForeColor = SystemColors.ControlText;
 194                         defaultCellStyle.SelectionBackColor = SystemColors.Highlight;
 195                         defaultCellStyle.SelectionForeColor = SystemColors.HighlightText;
 196                         defaultCellStyle.Font = this.Font;
 197                         defaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleLeft;
 198                         defaultCellStyle.WrapMode = DataGridViewTriState.False;
 199                         editMode = DataGridViewEditMode.EditOnKeystrokeOrF2;
 200                         firstDisplayedScrollingColumnHiddenWidth = 0;
 201                         isCurrentCellDirty = false;
 202                         multiSelect = true;
 203                         readOnly = false;
 204                         rowHeadersBorderStyle = DataGridViewHeaderBorderStyle.Single;
 205                         rowHeadersDefaultCellStyle = (DataGridViewCellStyle) columnHeadersDefaultCellStyle.Clone ();
 206                         rowHeadersVisible = true;
 207                         rowHeadersWidth = 41;
 208                         rowHeadersWidthSizeMode = DataGridViewRowHeadersWidthSizeMode.EnableResizing;
 209                         rows = CreateRowsInstance();
 210                         rowsDefaultCellStyle = new DataGridViewCellStyle();
 211                         selectionMode = DataGridViewSelectionMode.RowHeaderSelect;
 212                         showCellErrors = true;
 213                         showEditingIcon = true;
 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 { return allowUserToAddRows; }
 266                         set {
 267                                 if (allowUserToAddRows != value) {
 268                                         allowUserToAddRows = value;
 269                                         OnAllowUserToAddRowsChanged(EventArgs.Empty);
 270                                         PrepareEditingRow (false, false);
 271                                         Invalidate ();
 272                                 }
 273                         }
 274                 }
 275
 276                 [DefaultValue (true)]
 277                 public bool AllowUserToDeleteRows {
 278                         get { return allowUserToDeleteRows; }
 279                         set {
 280                                 if (allowUserToDeleteRows != value) {
 281                                         allowUserToDeleteRows = value;
 282                                         OnAllowUserToDeleteRowsChanged(EventArgs.Empty);
 283                                 }
 284                         }
 285                 }
 286
 287                 [DefaultValue (false)]
 288                 public bool AllowUserToOrderColumns {
 289                         get { return allowUserToOrderColumns; }
 290                         set {
 291                                 if (allowUserToOrderColumns != value) {
 292                                         allowUserToOrderColumns = value;
 293                                         OnAllowUserToOrderColumnsChanged(EventArgs.Empty);
 294                                 }
 295                         }
 296                 }
 297
 298                 [DefaultValue (true)]
 299                 public bool AllowUserToResizeColumns {
 300                         get { return allowUserToResizeColumns; }
 301                         set {
 302                                 if (allowUserToResizeColumns != value) {
 303                                         allowUserToResizeColumns = value;
 304                                         OnAllowUserToResizeColumnsChanged(EventArgs.Empty);
 305                                 }
 306                         }
 307                 }
 308
 309                 [DefaultValue (true)]
 310                 public bool AllowUserToResizeRows {
 311                         get { return allowUserToResizeRows; }
 312                         set {
 313                                 if (allowUserToResizeRows != value) {
 314                                         allowUserToResizeRows = value;
 315                                         OnAllowUserToResizeRowsChanged(EventArgs.Empty);
 316                                 }
 317                         }
 318                 }
 319
 320                 public DataGridViewCellStyle AlternatingRowsDefaultCellStyle {
 321                         get { return alternatingRowsDefaultCellStyle; }
 322                         set {
 323                                 if (alternatingRowsDefaultCellStyle != value) {
 324                                         alternatingRowsDefaultCellStyle = value;
 325                                         OnAlternatingRowsDefaultCellStyleChanged(EventArgs.Empty);
 326                                         Invalidate();
 327                                 }
 328                         }
 329                 }
 330
 331                 [Browsable (false)]
 332                 [EditorBrowsable (EditorBrowsableState.Advanced)]
 333                 [DefaultValue (true)]
 334                 public bool AutoGenerateColumns {
 335                         get { return autoGenerateColumns; }
 336                         set {
 337                                 if (autoGenerateColumns != value) {
 338                                         autoGenerateColumns = value;
 339                                         OnAutoGenerateColumnsChanged(EventArgs.Empty);
 340                                 }
 341                         }
 342                 }
 343
 344                 public override bool AutoSize {
 345                         get { return autoSize; }
 346                         set {
 347                                 if (autoSize != value) {
 348                                         autoSize = value;
 349                                         //OnAutoSizeChanged(EventArgs.Empty);
 350                                 }
 351                         }
 352                 }
 353
 354                 [DefaultValue (DataGridViewAutoSizeColumnsMode.None)]
 355                 public DataGridViewAutoSizeColumnsMode AutoSizeColumnsMode {
 356                         get { return autoSizeColumnsMode; }
 357                         set {
 358                                 if (!Enum.IsDefined(typeof(DataGridViewAutoSizeColumnsMode), value)) {
 359                                         throw new InvalidEnumArgumentException("Value is not valid DataGridViewAutoSizeColumnsMode.");
 360                                 }
 361                                 if (value == DataGridViewAutoSizeColumnsMode.ColumnHeader && columnHeadersVisible == false) {
 362                                         foreach (DataGridViewColumn col in columns) {
 363                                                 if (col.AutoSizeMode == DataGridViewAutoSizeColumnMode.NotSet) {
 364                                                                 throw new InvalidOperationException("Cant set this property to ColumnHeader in this DataGridView.");
 365                                                 }
 366                                         }
 367                                 }
 368                                 if (value == DataGridViewAutoSizeColumnsMode.Fill) {
 369                                         foreach (DataGridViewColumn col in columns) {
 370                                                 if (col.AutoSizeMode == DataGridViewAutoSizeColumnMode.NotSet) {
 371                                                         if (col.Frozen) {
 372                                                                 throw new InvalidOperationException("Cant set this property to Fill in this DataGridView.");
 373                                                         }
 374                                                 }
 375                                         }
 376                                 }
 377
 378                                 autoSizeColumnsMode = value;
 379                                 AutoResizeColumns (value);
 380                                 Invalidate ();
 381                         }
 382                 }
 383
 384                 [DefaultValue (DataGridViewAutoSizeRowsMode.None)]
 385                 public DataGridViewAutoSizeRowsMode AutoSizeRowsMode {
 386                         get { return autoSizeRowsMode; }
 387                         set {
 388                                 if (autoSizeRowsMode != value) {
 389                                         if (!Enum.IsDefined(typeof(DataGridViewAutoSizeRowsMode), value)) {
 390                                                 throw new InvalidEnumArgumentException("Value is not valid DataGridViewRowsMode.");
 391                                         }
 392                                         if ((value == DataGridViewAutoSizeRowsMode.AllHeaders || value == DataGridViewAutoSizeRowsMode.DisplayedHeaders) && rowHeadersVisible == false) {
 393                                                 throw new InvalidOperationException("Cant set this property to AllHeaders or DisplayedHeaders in this DataGridView.");
 394                                         }
 395                                         autoSizeRowsMode = value;
 396
 397                                         if (value == DataGridViewAutoSizeRowsMode.None)
 398                                                 foreach (DataGridViewRow row in Rows)
 399                                                         row.ResetToExplicitHeight ();
 400                                         else
 401                                                 AutoResizeRows (value);
 402
 403                                         OnAutoSizeRowsModeChanged(new DataGridViewAutoSizeModeEventArgs(false));
 404                                         Invalidate ();
 405                                         ////////////////////////////////////////////////////////////////
 406                                 }
 407                         }
 408                 }
 409
 410                 [Browsable (false)]
 411                 [EditorBrowsable (EditorBrowsableState.Never)]
 412                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 413                 public override Color BackColor {
 414                         get { return backColor; }
 415                         set {
 416                                 if (backColor != value) {
 417                                         backColor = value;
 418                                         OnBackColorChanged(EventArgs.Empty);
 419                                 }
 420                         }
 421                 }
 422
 423                 public Color BackgroundColor {
 424                         get { return backgroundColor; }
 425                         set {
 426                                 if (backgroundColor != value) {
 427                                         if (value == Color.Empty) {
 428                                                 throw new ArgumentException("Cant set an Empty color.");
 429                                         }
 430                                         backgroundColor = value;
 431                                         OnBackgroundColorChanged(EventArgs.Empty);
 432                                 }
 433                         }
 434                 }
 435
 436                 [Browsable (false)]
 437                 [EditorBrowsable (EditorBrowsableState.Never)]
 438                 public override Image BackgroundImage {
 439                         get { return backgroundImage; }
 440                         set {
 441                                 if (backgroundImage != value) {
 442                                         backgroundImage = value;
 443                                         OnBackgroundImageChanged(EventArgs.Empty);
 444                                 }
 445                         }
 446                 }
 447
 448                 [Browsable (false)]
 449                 [EditorBrowsable (EditorBrowsableState.Never)]
 450                 public override ImageLayout BackgroundImageLayout {
 451                         get { return base.BackgroundImageLayout; }
 452                         set { base.BackgroundImageLayout = value; }
 453                 }
 454
 455                 [DefaultValue (BorderStyle.FixedSingle)]
 456                 public BorderStyle BorderStyle {
 457                         get { return borderStyle; }
 458                         set {
 459                                 if (borderStyle != value) {
 460                                         if (!Enum.IsDefined(typeof(BorderStyle), value)) {
 461                                                 throw new InvalidEnumArgumentException("Invalid border style.");
 462                                         }
 463                                         borderStyle = value;
 464                                         OnBorderStyleChanged(EventArgs.Empty);
 465                                 }
 466                         }
 467                 }
 468
 469                 internal int BorderWidth {
 470                         get {
 471                                 switch (BorderStyle) {
 472                                 case BorderStyle.Fixed3D:
 473                                         return 2;
 474                                 case BorderStyle.FixedSingle:
 475                                         return 1;
 476                                 case BorderStyle.None:
 477                                 default:
 478                                         return 0;
 479                                 }
 480                         }
 481                 }
 482
 483                 [Browsable (true)]
 484                 [DefaultValue (DataGridViewCellBorderStyle.Single)]
 485                 public DataGridViewCellBorderStyle CellBorderStyle {
 486                         get { return cellBorderStyle; }
 487                         set {
 488                                 if (cellBorderStyle != value) {
 489                                         if (value == DataGridViewCellBorderStyle.Custom)
 490                                                 throw new ArgumentException ("CellBorderStyle cannot be set to Custom.");
 491
 492                                         cellBorderStyle = value;
 493
 494                                         DataGridViewAdvancedBorderStyle border = new DataGridViewAdvancedBorderStyle ();
 495
 496                                         switch (cellBorderStyle) {
 497                                                 case DataGridViewCellBorderStyle.Single:
 498                                                         border.All = DataGridViewAdvancedCellBorderStyle.Single;
 499                                                         break;
 500                                                 case DataGridViewCellBorderStyle.Raised:
 501                                                 case DataGridViewCellBorderStyle.RaisedVertical:
 502                                                         border.Bottom = DataGridViewAdvancedCellBorderStyle.None;
 503                                                         border.Top = DataGridViewAdvancedCellBorderStyle.None;
 504                                                         border.Left = DataGridViewAdvancedCellBorderStyle.Outset;
 505                                                         border.Right = DataGridViewAdvancedCellBorderStyle.Outset;
 506                                                         break;
 507                                                 case DataGridViewCellBorderStyle.Sunken:
 508                                                         border.All = DataGridViewAdvancedCellBorderStyle.Inset;
 509                                                         break;
 510                                                 case DataGridViewCellBorderStyle.None:
 511                                                         border.All = DataGridViewAdvancedCellBorderStyle.None;
 512                                                         break;
 513                                                 case DataGridViewCellBorderStyle.SingleVertical:
 514                                                         border.Bottom = DataGridViewAdvancedCellBorderStyle.None;
 515                                                         border.Top = DataGridViewAdvancedCellBorderStyle.None;
 516                                                         border.Left = DataGridViewAdvancedCellBorderStyle.None;
 517                                                         border.Right = DataGridViewAdvancedCellBorderStyle.Single;
 518                                                         break;
 519                                                 case DataGridViewCellBorderStyle.SunkenVertical:
 520                                                         border.Bottom = DataGridViewAdvancedCellBorderStyle.None;
 521                                                         border.Top = DataGridViewAdvancedCellBorderStyle.None;
 522                                                         border.Left = DataGridViewAdvancedCellBorderStyle.Inset;
 523                                                         border.Right = DataGridViewAdvancedCellBorderStyle.Inset;
 524                                                         break;
 525                                                 case DataGridViewCellBorderStyle.SingleHorizontal:
 526                                                 case DataGridViewCellBorderStyle.SunkenHorizontal:
 527                                                         border.Bottom = DataGridViewAdvancedCellBorderStyle.Inset;
 528                                                         border.Top = DataGridViewAdvancedCellBorderStyle.Inset;
 529                                                         border.Left = DataGridViewAdvancedCellBorderStyle.None;
 530                                                         border.Right = DataGridViewAdvancedCellBorderStyle.None;
 531                                                         break;
 532                                                 case DataGridViewCellBorderStyle.RaisedHorizontal:
 533                                                         border.Bottom = DataGridViewAdvancedCellBorderStyle.Outset;
 534                                                         border.Top = DataGridViewAdvancedCellBorderStyle.Outset;
 535                                                         border.Left = DataGridViewAdvancedCellBorderStyle.None;
 536                                                         border.Right = DataGridViewAdvancedCellBorderStyle.None;
 537                                                         break;
 538                                         }
 539
 540                                         advancedCellBorderStyle = border;
 541
 542                                         OnCellBorderStyleChanged (EventArgs.Empty);
 543                                 }
 544                         }
 545                 }
 546
 547                 [Browsable (true)]
 548                 [DefaultValue (DataGridViewClipboardCopyMode.EnableWithAutoHeaderText)]
 549                 public DataGridViewClipboardCopyMode ClipboardCopyMode {
 550                         get { return clipboardCopyMode; }
 551                         set { clipboardCopyMode = value; }
 552                 }
 553
 554                 [Browsable (false)]
 555                 [EditorBrowsable (EditorBrowsableState.Advanced)]
 556                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 557                 [DefaultValue (0)]
 558                 public int ColumnCount {
 559                         get { return columns.Count; }
 560                         set {
 561                                 if (value < 0) {
 562                                         throw new ArgumentOutOfRangeException("ColumnCount",
 563                                                 "ColumnCount must be >= 0.");
 564                                 }
 565                                 if (dataSource != null) {
 566                                         throw new InvalidOperationException("Cant change column count if DataSource is set.");
 567                                 }
 568                                 if (value < columns.Count) {
 569                                         for (int i = value; i < columns.Count; i++) {
 570                                                 columns.RemoveAt(i);
 571                                         }
 572                                 }
 573                                 else if (value > columns.Count) {
 574                                         for (int i = 0; i < value; i++) {
 575                                                 DataGridViewTextBoxColumn col = new DataGridViewTextBoxColumn ();
 576                                                 columns.Add(col);
 577                                         }
 578                                 }
 579                         }
 580                 }
 581
 582                 [Browsable (true)]
 583                 [DefaultValue (DataGridViewHeaderBorderStyle.Raised)]
 584                 public DataGridViewHeaderBorderStyle ColumnHeadersBorderStyle {
 585                         get { return columnHeadersBorderStyle; }
 586                         set {
 587                                 if (columnHeadersBorderStyle != value) {
 588                                         columnHeadersBorderStyle = value;
 589                                         OnColumnHeadersBorderStyleChanged(EventArgs.Empty);
 590                                 }
 591                         }
 592                 }
 593
 594                 [AmbientValue (null)]
 595                 public DataGridViewCellStyle ColumnHeadersDefaultCellStyle {
 596                         get { return columnHeadersDefaultCellStyle; }
 597                         set {
 598                                 if (columnHeadersDefaultCellStyle != value) {
 599                                         columnHeadersDefaultCellStyle = value;
 600                                         OnColumnHeadersDefaultCellStyleChanged(EventArgs.Empty);
 601                                 }
 602                         }
 603                 }
 604
 605                 [Localizable (true)]
 606                 public int ColumnHeadersHeight {
 607                         get { return columnHeadersHeight; }
 608                         set {
 609                                 if (columnHeadersHeight != value) {
 610                                         if (value < 4) {
 611                                                 throw new ArgumentOutOfRangeException("ColumnHeadersHeight",
 612                                                         "Column headers height cant be less than 4.");
 613                                         }
 614                                         if (value > 32768 ) {
 615                                                 throw new ArgumentOutOfRangeException("ColumnHeadersHeight",
 616                                                         "Column headers height cannot be more than 32768.");
 617                                         }
 618                                         columnHeadersHeight = value;
 619                                         OnColumnHeadersHeightChanged(EventArgs.Empty);
 620
 621                                         if (columnHeadersVisible)
 622                                                 Invalidate ();
 623                                 }
 624                         }
 625                 }
 626
 627                 [RefreshProperties (RefreshProperties.All)]
 628                 [DefaultValue (DataGridViewColumnHeadersHeightSizeMode.EnableResizing)]
 629                 public DataGridViewColumnHeadersHeightSizeMode ColumnHeadersHeightSizeMode {
 630                         get { return columnHeadersHeightSizeMode; }
 631                         set {
 632                                 if (columnHeadersHeightSizeMode != value) {
 633                                         if (!Enum.IsDefined(typeof(DataGridViewColumnHeadersHeightSizeMode), value)) {
 634                                                 throw new InvalidEnumArgumentException("Value is not a valid DataGridViewColumnHeadersHeightSizeMode.");
 635                                         }
 636                                         columnHeadersHeightSizeMode = value;
 637                                         OnColumnHeadersHeightSizeModeChanged(new DataGridViewAutoSizeModeEventArgs(false));
 638                                 }
 639                         }
 640                 }
 641
 642                 [DefaultValue (true)]
 643                 public bool ColumnHeadersVisible {
 644                         get { return columnHeadersVisible; }
 645                         set {
 646                                 if (columnHeadersVisible != value) {
 647                                         columnHeadersVisible = value;
 648                                         Invalidate ();
 649                                 }
 650                         }
 651                 }
 652
 653                 [MergableProperty (false)]
 654                 [Editor ("System.Windows.Forms.Design.DataGridViewColumnCollectionEditor, " + Consts.AssemblySystem_Design, typeof (System.Drawing.Design.UITypeEditor))]
 655                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
 656                 public DataGridViewColumnCollection Columns {
 657                         get { return columns; }
 658                 }
 659
 660                 [Browsable (false)]
 661                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 662                 public DataGridViewCell CurrentCell {
 663                         get { return currentCell; }
 664                         set {
 665                                 /////////////////////////////////////////////////////
 666                                 /// *** InvalidOperationException ***
 667                                 /// Changes to the specified cell cannot be committed
 668                                 /// to the data cache, or the new cell is in a hidden
 669                                 /// row.
 670                                 /////////////////////////////////////////////////////
 671                                 if (value.DataGridView != this)
 672                                         throw new ArgumentException("The cell is not in this DataGridView.");
 673
 674                                 if (value != null)
 675                                         MoveCurrentCell (value.OwningColumn.Index, value.OwningRow.Index, true, false, false, true);
 676                                 else
 677                                         MoveCurrentCell (-1, -1, true, false, false, true);
 678                         }
 679                 }
 680
 681                 [Browsable (false)]
 682                 public Point CurrentCellAddress {
 683                         get { return currentCellAddress; }
 684                 }
 685
 686                 [Browsable (false)]
 687                 public DataGridViewRow CurrentRow {
 688                         get {
 689                                 if (currentCell != null)
 690                                         return currentCell.OwningRow;
 691                                 return null;
 692                         }
 693                 }
 694
 695                 [DefaultValue ("")]
 696                 [Editor ("System.Windows.Forms.Design.DataMemberListEditor, " + Consts.AssemblySystem_Design, typeof (System.Drawing.Design.UITypeEditor))]
 697                 public string DataMember {
 698                         get { return dataMember; }
 699                         set {
 700                                 if (dataMember != value) {
 701                                         ClearBinding ();
 702
 703                                         dataMember = value;
 704                                         OnDataMemberChanged(EventArgs.Empty);
 705
 706                                         DoBinding ();
 707                                 }
 708                         }
 709                 }
 710
 711                 [RefreshProperties (RefreshProperties.Repaint)]
 712                 [DefaultValue (null)]
 713                 [AttributeProvider (typeof (IListSource))]
 714                 public object DataSource {
 715                         get { return dataSource; }
 716                         set {
 717                                 /* 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:
 718                                  - the System.Collections.IList interface, including one-dimensional arrays.
 719                                  - the System.ComponentModel.IListSource interface, such as the System.Data.DataTable and System.Data.DataSet classes.
 720                                  - the System.ComponentModel.IBindingList interface, such as the System.ComponentModel.Collections.BindingList<> class.
 721                                  - the System.ComponentModel.IBindingListView interface, such as the System.Windows.Forms.BindingSource class.
 722                                 */
 723                                 if (!(value == null || value is IList || value is IListSource || value is IBindingList || value is IBindingListView))
 724                                         throw new NotSupportedException ("Type cannot be bound.");
 725
 726                                 ClearBinding ();
 727
 728                                 dataSource = value;
 729                                 OnDataSourceChanged (EventArgs.Empty);
 730
 731                                 DoBinding ();
 732                         }
 733                 }
 734
 735                 [AmbientValue (null)]
 736                 public DataGridViewCellStyle DefaultCellStyle {
 737                         get { return defaultCellStyle; }
 738                         set {
 739                                 if (defaultCellStyle != value) {
 740                                         defaultCellStyle = value;
 741                                         OnDefaultCellStyleChanged(EventArgs.Empty);
 742                                 }
 743                         }
 744                 }
 745
 746                 public override Rectangle DisplayRectangle {
 747                         get { return base.DisplayRectangle; }
 748                 }
 749
 750                 [Browsable (false)]
 751                 [EditorBrowsable (EditorBrowsableState.Advanced)]
 752                 public Control EditingControl {
 753                         get {
 754                                 return editingControl;
 755                         }
 756                 }
 757
 758                 [Browsable (false)]
 759                 [EditorBrowsable (EditorBrowsableState.Advanced)]
 760                 public Panel EditingPanel {
 761                         get { throw new NotImplementedException(); }
 762                 }
 763
 764                 [DefaultValue (DataGridViewEditMode.EditOnKeystrokeOrF2)]
 765                 public DataGridViewEditMode EditMode {
 766                         get { return editMode; }
 767                         set {
 768                                 if (editMode != value) {
 769                                         editMode = value;
 770                                         OnEditModeChanged(EventArgs.Empty);
 771                                 }
 772                         }
 773                 }
 774
 775                 [DefaultValue (true)]
 776                 public bool EnableHeadersVisualStyles {
 777                         get { return enableHeadersVisualStyles; }
 778                         set { enableHeadersVisualStyles = value; }
 779                 }
 780
 781                 internal DataGridViewHeaderCell EnteredHeaderCell {
 782                         get { return entered_header_cell; }
 783                         set {
 784                                 if (entered_header_cell == value)
 785                                         return;
 786                                 if (ThemeEngine.Current.DataGridViewHeaderCellHasHotStyle (this)) {
 787                                         Region area_to_invalidate = new Region ();
 788                                         area_to_invalidate.MakeEmpty ();
 789                                         if (entered_header_cell != null)
 790                                                 area_to_invalidate.Union (GetHeaderCellBounds (entered_header_cell));
 791                                         entered_header_cell = value;
 792                                         if (entered_header_cell != null)
 793                                                 area_to_invalidate.Union (GetHeaderCellBounds (entered_header_cell));
 794                                         Invalidate (area_to_invalidate);
 795                                         area_to_invalidate.Dispose ();
 796                                 } else
 797                                         entered_header_cell = value;
 798                         }
 799                 }
 800
 801                 [Browsable (false)]
 802                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 803                 public DataGridViewCell FirstDisplayedCell {
 804                         get { return firstDisplayedCell; }
 805                         set {
 806                                 if (value.DataGridView != this) {
 807                                         throw new ArgumentException("The cell is not in this DataGridView.");
 808                                 }
 809                                 firstDisplayedCell = value;
 810                         }
 811                 }
 812
 813                 [Browsable (false)]
 814                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 815                 [EditorBrowsable (EditorBrowsableState.Advanced)]
 816                 public int FirstDisplayedScrollingColumnHiddenWidth {
 817                         get { return firstDisplayedScrollingColumnHiddenWidth; }
 818                 }
 819
 820                 [Browsable (false)]
 821                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 822                 public int FirstDisplayedScrollingColumnIndex {
 823                         get { return firstDisplayedScrollingColumnIndex; }
 824                         set { firstDisplayedScrollingColumnIndex = value; }
 825                 }
 826
 827                 [Browsable (false)]
 828                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 829                 public int FirstDisplayedScrollingRowIndex {
 830                         get { return firstDisplayedScrollingRowIndex; }
 831                         set { firstDisplayedScrollingRowIndex = value; }
 832                 }
 833
 834                 [Browsable (false)]
 835                 [EditorBrowsable (EditorBrowsableState.Advanced)]
 836                 public override Font Font {
 837                         get { return base.Font; }
 838                         set { base.Font = value; }
 839                 }
 840
 841                 [Browsable (false)]
 842                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 843                 [EditorBrowsable (EditorBrowsableState.Advanced)]
 844                 public override Color ForeColor {
 845                         get { return base.ForeColor; }
 846                         set { base.ForeColor = value; }
 847                 }
 848
 849                 public Color GridColor {
 850                         get { return gridColor; }
 851                         set {
 852                                 if (gridColor != value) {
 853                                         if (value == Color.Empty) {
 854                                                 throw new ArgumentException("Cant set an Empty color.");
 855                                         }
 856                                         gridColor = value;
 857                                         OnGridColorChanged(EventArgs.Empty);
 858                                 }
 859                         }
 860                 }
 861
 862                 [Browsable (false)]
 863                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 864                 public int HorizontalScrollingOffset {
 865                         get { return horizontalScrollingOffset; }
 866                         set { horizontalScrollingOffset = value; }
 867                 }
 868
 869                 [Browsable (false)]
 870                 public bool IsCurrentCellDirty {
 871                         get { return isCurrentCellDirty; }
 872                 }
 873
 874                 [Browsable (false)]
 875                 public bool IsCurrentCellInEditMode {
 876                         get {
 877                                 if (currentCell == null) {
 878                                         return false;
 879                                 }
 880                                 return currentCell.IsInEditMode;
 881                         }
 882                 }
 883
 884                 [Browsable (false)]
 885                 public bool IsCurrentRowDirty {
 886                         get {
 887                                 if (!virtualMode) {
 888                                         return IsCurrentCellDirty;
 889                                 }
 890                                 // Calcular
 891                                 throw new NotImplementedException();
 892                         }
 893                 }
 894
 895                 [Browsable (false)]
 896                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 897                 public DataGridViewCell this [int columnIndex, int rowIndex] {
 898                         get { return rows[rowIndex].Cells[columnIndex]; }
 899                         set { rows[rowIndex].Cells[columnIndex] = value; }
 900                 }
 901
 902                 [Browsable (false)]
 903                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 904                 public DataGridViewCell this [string columnName, int rowIndex] {
 905                         get {
 906                                 int columnIndex = -1;
 907                                 foreach (DataGridViewColumn col in columns) {
 908                                         if (col.Name == columnName) {
 909                                                 columnIndex = col.Index;
 910                                                 break;
 911                                         }
 912                                 }
 913                                 return this[columnIndex, rowIndex];
 914                         }
 915                         set {
 916                                 int columnIndex = -1;
 917                                 foreach (DataGridViewColumn col in columns) {
 918                                         if (col.Name == columnName) {
 919                                                 columnIndex = col.Index;
 920                                                 break;
 921                                         }
 922                                 }
 923                                 this[columnIndex, rowIndex] = value;
 924                         }
 925                 }
 926
 927                 [DefaultValue (true)]
 928                 public bool MultiSelect {
 929                         get { return multiSelect; }
 930                         set {
 931                                 if (multiSelect != value) {
 932                                         multiSelect = value;
 933                                         OnMultiSelectChanged(EventArgs.Empty);
 934                                 }
 935                         }
 936                 }
 937
 938                 [Browsable (false)]
 939                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 940                 public int NewRowIndex {
 941                         get {
 942                                 if (!allowUserToAddRows || ColumnCount == 0) {
 943                                         return -1;
 944                                 }
 945                                 return rows.Count - 1;
 946                         }
 947                 }
 948
 949                 [Browsable (false)]
 950                 [EditorBrowsable (EditorBrowsableState.Never)]
 951                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 952                 public new Padding Padding {
 953                         get { return Padding.Empty; }
 954                         set { }
 955                 }
 956
 957                 internal DataGridViewHeaderCell PressedHeaderCell {
 958                         get { return pressed_header_cell; }
 959                 }
 960
 961                 [Browsable (true)]
 962                 [DefaultValue (false)]
 963                 public bool ReadOnly {
 964                         get { return readOnly; }
 965                         set {
 966                                 if (readOnly != value) {
 967                                         readOnly = value;
 968                                         OnReadOnlyChanged(EventArgs.Empty);
 969                                 }
 970                         }
 971                 }
 972
 973                 [Browsable (false)]
 974                 [EditorBrowsable (EditorBrowsableState.Advanced)]
 975                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 976                 [DefaultValue (0)]
 977                 public int RowCount {
 978                         get { return rows.Count; }
 979                         set {
 980                                 if (value < 0) {
 981                                         throw new ArgumentException("RowCount must be >= 0.");
 982                                 }
 983                                 if (value < 1 && allowUserToAddRows) {
 984                                         throw new ArgumentException("RowCount must be >= 1 if AllowUserToAddRows is true.");
 985                                 }
 986                                 if (dataSource != null) {
 987                                         throw new InvalidOperationException("Cant change row count if DataSource is set.");
 988                                 }
 989                                 if (value < rows.Count) {
 990                                         for (int i = value; i < rows.Count; i++) {
 991                                                 rows.RemoveAt(i);
 992                                         }
 993                                 }
 994                                 else if (value > rows.Count) {
 995                                         // If we need to add rows and don't have any columns,
 996                                         // we create one column
 997                                         if (ColumnCount == 0)
 998                                                 ColumnCount = 1;
 999
1000                                         for (int i = rows.Count; i < value; i++) {
1001                                                 DataGridViewRow row = (DataGridViewRow) RowTemplateFull;
1002                                                 rows.AddInternal (row, false);
1003
1004                                                 foreach (DataGridViewColumn col in columns)
1005                                                         row.Cells.Add (col.CellTemplate.Clone () as DataGridViewCell);
1006                                         }
1007                                 }
1008                         }
1009                 }
1010
1011                 [Browsable (true)]
1012                 [DefaultValue (DataGridViewHeaderBorderStyle.Raised)]
1013                 public DataGridViewHeaderBorderStyle RowHeadersBorderStyle {
1014                         get { return rowHeadersBorderStyle; }
1015                         set {
1016                                 if (rowHeadersBorderStyle != value) {
1017                                         rowHeadersBorderStyle = value;
1018                                         OnRowHeadersBorderStyleChanged(EventArgs.Empty);
1019                                 }
1020                         }
1021                 }
1022
1023                 [AmbientValue (null)]
1024                 public DataGridViewCellStyle RowHeadersDefaultCellStyle {
1025                         get { return rowHeadersDefaultCellStyle; }
1026                         set {
1027                                 if (rowHeadersDefaultCellStyle != value) {
1028                                         rowHeadersDefaultCellStyle = value;
1029                                         OnRowHeadersDefaultCellStyleChanged(EventArgs.Empty);
1030                                 }
1031                         }
1032                 }
1033
1034                 [DefaultValue (true)]
1035                 public bool RowHeadersVisible {
1036                         get { return rowHeadersVisible; }
1037                         set {
1038                                 if (rowHeadersVisible != value) {
1039                                         rowHeadersVisible = value;
1040                                         Invalidate ();
1041                                 }
1042                         }
1043                 }
1044
1045                 [Localizable (true)]
1046                 public int RowHeadersWidth {
1047                         get { return rowHeadersWidth; }
1048                         set {
1049                                 if (rowHeadersWidth != value) {
1050                                         if (value < 4) {
1051                                                 throw new ArgumentOutOfRangeException("RowHeadersWidth",
1052                                                         "Row headers width cant be less than 4.");
1053                                         }
1054                                         if (value > 32768 ) {
1055                                                 throw new ArgumentOutOfRangeException("RowHeadersWidth",
1056                                                         "Row headers width cannot be more than 32768.");
1057                                         }
1058                                         rowHeadersWidth = value;
1059                                         OnRowHeadersWidthChanged(EventArgs.Empty);
1060
1061                                         if (rowHeadersVisible)
1062                                                 Invalidate ();
1063                                 }
1064                         }
1065                 }
1066
1067                 [RefreshProperties (RefreshProperties.All)]
1068                 [DefaultValue (DataGridViewRowHeadersWidthSizeMode.EnableResizing)]
1069                 public DataGridViewRowHeadersWidthSizeMode RowHeadersWidthSizeMode {
1070                         get { return rowHeadersWidthSizeMode; }
1071                         set {
1072                                 if (rowHeadersWidthSizeMode != value) {
1073                                         if (!Enum.IsDefined(typeof(DataGridViewRowHeadersWidthSizeMode), value)) {
1074                                                 throw new InvalidEnumArgumentException("Value is not valid DataGridViewRowHeadersWidthSizeMode.");
1075                                         }
1076                                         rowHeadersWidthSizeMode = value;
1077                                         OnRowHeadersWidthSizeModeChanged(new DataGridViewAutoSizeModeEventArgs(false));
1078                                 }
1079                         }
1080                 }
1081
1082                 [Browsable (false)]
1083                 public DataGridViewRowCollection Rows {
1084                         get { return rows; }
1085                 }
1086
1087                 public DataGridViewCellStyle RowsDefaultCellStyle {
1088                         get { return rowsDefaultCellStyle; }
1089                         set {
1090                                 if (rowsDefaultCellStyle != value) {
1091                                         rowsDefaultCellStyle = value;
1092                                         OnRowsDefaultCellStyleChanged(EventArgs.Empty);
1093                                 }
1094                         }
1095                 }
1096
1097                 // RowTemplate is just the row, it does not contain Cells
1098                 [Browsable (true)]
1099                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
1100                 public DataGridViewRow RowTemplate {
1101                         get {
1102                                 if (rowTemplate == null)
1103                                         rowTemplate = new DataGridViewRow ();
1104
1105                                 return rowTemplate;
1106                         }
1107                         set {
1108                                 rowTemplate = value;
1109                                 rowTemplate.SetDataGridView(this);
1110                         }
1111                 }
1112
1113                 // Take the RowTemplate, clone it, and add Cells
1114                 // Note this is not stored, so you don't need to Clone it
1115                 internal DataGridViewRow RowTemplateFull {
1116                         get {
1117                                 DataGridViewRow row = (DataGridViewRow) RowTemplate.Clone ();
1118
1119                                 for (int i = row.Cells.Count; i < Columns.Count; i++) {
1120                                         DataGridViewCell template = columns [i].CellTemplate;
1121
1122                                         if (template == null)
1123                                                 throw new InvalidOperationException ("At least one of the DataGridView control's columns has no cell template.");
1124
1125                                         row.Cells.Add ((DataGridViewCell) template.Clone ());
1126                                 }
1127
1128                                 return row;
1129                         }
1130                 }
1131
1132                 internal override bool ScaleChildrenInternal {
1133                         get { return false; }
1134                 }
1135
1136                 [DefaultValue (ScrollBars.Both)]
1137                 [Localizable (true)]
1138                 public ScrollBars ScrollBars {
1139                         get { return scrollBars; }
1140                         set {
1141                                 if (!Enum.IsDefined(typeof(ScrollBars), value)) {
1142                                         throw new InvalidEnumArgumentException("Invalid ScrollBars value.");
1143                                 }
1144                                 ////////////////////////////////////////////////////////////
1145                                 /// *** InvalidOperationException ***
1146                                 /// The System.Windows.Forms.DataGridView is unable to
1147                                 /// scroll due to a cell change that cannot be committed
1148                                 /// or canceled.
1149                                 ///////////////////////////////////////////////////////////
1150                                 scrollBars = value;
1151                         }
1152                 }
1153
1154                 [Browsable (false)]
1155                 public DataGridViewSelectedCellCollection SelectedCells {
1156                         get {
1157                                 DataGridViewSelectedCellCollection selectedCells = new DataGridViewSelectedCellCollection();
1158                                 foreach (DataGridViewRow row in rows) {
1159                                         foreach (DataGridViewCell cell in row.Cells) {
1160                                                 if (cell.Selected) {
1161                                                         selectedCells.InternalAdd(cell);
1162                                                 }
1163                                         }
1164                                 }
1165                                 return selectedCells;
1166                         }
1167                 }
1168
1169                 [Browsable (false)]
1170                 public DataGridViewSelectedColumnCollection SelectedColumns {
1171                         get
1172                         {
1173                                 DataGridViewSelectedColumnCollection result = new DataGridViewSelectedColumnCollection ();
1174
1175                                 if (selectionMode != DataGridViewSelectionMode.FullColumnSelect && selectionMode != DataGridViewSelectionMode.ColumnHeaderSelect)
1176                                         return result;
1177
1178                                 result.InternalAddRange (selected_columns);
1179
1180                                 return result;
1181                         }
1182                 }
1183
1184                 [Browsable (false)]
1185                 public DataGridViewSelectedRowCollection SelectedRows {
1186                         get {
1187                                 DataGridViewSelectedRowCollection result = new DataGridViewSelectedRowCollection (this);
1188
1189                                 if (selectionMode != DataGridViewSelectionMode.FullRowSelect && selectionMode != DataGridViewSelectionMode.RowHeaderSelect)
1190                                         return result;
1191
1192                                 result.InternalAddRange (selected_rows);
1193
1194                                 return result;
1195                         }
1196                 }
1197
1198                 [Browsable (true)]
1199                 [DefaultValue (DataGridViewSelectionMode.RowHeaderSelect)]
1200                 public DataGridViewSelectionMode SelectionMode {
1201                         get { return selectionMode; }
1202                         set {
1203                                 if (!Enum.IsDefined (typeof(DataGridViewSelectionMode), value))
1204                                         throw new InvalidEnumArgumentException ("Value is not valid DataGridViewSelectionMode.");
1205
1206                                 if (value == DataGridViewSelectionMode.ColumnHeaderSelect || value == DataGridViewSelectionMode.FullColumnSelect)
1207                                         foreach (DataGridViewColumn col in Columns)
1208                                                 if (col.SortMode == DataGridViewColumnSortMode.Automatic)
1209                                                         throw new InvalidOperationException (string.Format ("Cannot set SelectionMode to {0} because there are Automatic sort columns.", value));
1210
1211                                 selectionMode = value;
1212                         }
1213                 }
1214
1215                 [DefaultValue (true)]
1216                 public bool ShowCellErrors {
1217                         get { return showCellErrors; }
1218                         set { showCellErrors = value; }
1219                 }
1220
1221                 [DefaultValue (true)]
1222                 public bool ShowCellToolTips {
1223                         get { return showCellToolTips; }
1224                         set { showCellToolTips = value; }
1225                 }
1226
1227                 [DefaultValue (true)]
1228                 public bool ShowEditingIcon {
1229                         get { return showEditingIcon; }
1230                         set { showEditingIcon = value; }
1231                 }
1232
1233                 [DefaultValue (true)]
1234                 public bool ShowRowErrors {
1235                         get { return showRowErrors; }
1236                         set { showRowErrors = value; }
1237                 }
1238
1239                 [Browsable (false)]
1240                 public DataGridViewColumn SortedColumn {
1241                         get { return sortedColumn; }
1242                 }
1243
1244                 [Browsable (false)]
1245                 public SortOrder SortOrder {
1246                         get { return sortOrder; }
1247                 }
1248
1249                 [DefaultValue (false)]
1250                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1251                 public bool StandardTab {
1252                         get { return standardTab; }
1253                         set { standardTab = value; }
1254                 }
1255
1256                 [Bindable (false)]
1257                 [Browsable (false)]
1258                 [EditorBrowsable (EditorBrowsableState.Never)]
1259                 public override string Text {
1260                         get { return base.Text; }
1261                         set { base.Text = value; }
1262                 }
1263
1264                 [Browsable (false)]
1265                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
1266                 public DataGridViewHeaderCell TopLeftHeaderCell {
1267                         get {
1268                                 if (topLeftHeaderCell == null) {
1269                                         topLeftHeaderCell = new DataGridViewTopLeftHeaderCell ();
1270                                         topLeftHeaderCell.SetDataGridView (this);
1271                                 }
1272                                 return topLeftHeaderCell;
1273                         }
1274                         set {
1275                                 topLeftHeaderCell = value;
1276                                 topLeftHeaderCell.SetDataGridView (this);
1277                         }
1278                 }
1279
1280                 [Browsable (false)]
1281                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1282                 public Cursor UserSetCursor {
1283                         get { return userSetCursor; }
1284                 }
1285
1286                 [Browsable (false)]
1287                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
1288                 public int VerticalScrollingOffset {
1289                         get { return verticalScrollingOffset; }
1290                 }
1291
1292                 [MonoTODO ("VirtualMode is not supported.")]
1293                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1294                 [DefaultValue (false)]
1295                 public bool VirtualMode {
1296                         get { return virtualMode; }
1297                         set { virtualMode = value; }
1298                 }
1299
1300                 internal Control EditingControlInternal {
1301                         get {
1302                                 return editingControl;
1303                         }
1304                         set {
1305                                 if (value == editingControl)
1306                                         return;
1307
1308                                 if (editingControl != null) {
1309                                         // Can't use Controls.Remove (editingControls), because that method
1310                                         // is overriden to not remove the editing control.
1311                                         DataGridView.DataGridViewControlCollection ctrls = Controls as DataGridView.DataGridViewControlCollection;
1312                                         if (ctrls != null) {
1313                                                 ctrls.RemoveInternal (editingControl);
1314                                         } else {
1315                                                 Controls.Remove (editingControl);
1316                                         }
1317                                 }
1318
1319
1320                                 if (value != null) {
1321                                         value.Visible = false;
1322                                         Controls.Add (value);
1323                                 }
1324
1325                                 editingControl = value;
1326                         }
1327                 }
1328
1329                 static object AllowUserToAddRowsChangedEvent = new object ();
1330                 static object AllowUserToDeleteRowsChangedEvent = new object ();
1331                 static object AllowUserToOrderColumnsChangedEvent = new object ();
1332                 static object AllowUserToResizeColumnsChangedEvent = new object ();
1333                 static object AllowUserToResizeRowsChangedEvent = new object ();
1334                 static object AlternatingRowsDefaultCellStyleChangedEvent = new object ();
1335                 static object AutoGenerateColumnsChangedEvent = new object ();
1336                 static object AutoSizeColumnModeChangedEvent = new object ();
1337                 static object AutoSizeColumnsModeChangedEvent = new object ();
1338                 static object AutoSizeRowsModeChangedEvent = new object ();
1339                 static object BackgroundColorChangedEvent = new object ();
1340                 static object BorderStyleChangedEvent = new object ();
1341                 static object CancelRowEditEvent = new object ();
1342                 static object CellBeginEditEvent = new object ();
1343                 static object CellBorderStyleChangedEvent = new object ();
1344                 static object CellClickEvent = new object ();
1345                 static object CellContentClickEvent = new object ();
1346                 static object CellContentDoubleClickEvent = new object ();
1347                 static object CellContextMenuStripChangedEvent = new object ();
1348                 static object CellContextMenuStripNeededEvent = new object ();
1349                 static object CellDoubleClickEvent = new object ();
1350                 static object CellEndEditEvent = new object ();
1351                 static object CellEnterEvent = new object ();
1352                 static object CellErrorTextChangedEvent = new object ();
1353                 static object CellErrorTextNeededEvent = new object ();
1354                 static object CellFormattingEvent = new object ();
1355                 static object CellLeaveEvent = new object ();
1356                 static object CellMouseClickEvent = new object ();
1357                 static object CellMouseDoubleClickEvent = new object ();
1358                 static object CellMouseDownEvent = new object ();
1359                 static object CellMouseEnterEvent = new object ();
1360                 static object CellMouseLeaveEvent = new object ();
1361                 static object CellMouseMoveEvent = new object ();
1362                 static object CellMouseUpEvent = new object ();
1363                 static object CellPaintingEvent = new object ();
1364                 static object CellParsingEvent = new object ();
1365                 static object CellStateChangedEvent = new object ();
1366                 static object CellStyleChangedEvent = new object ();
1367                 static object CellStyleContentChangedEvent = new object ();
1368                 static object CellToolTipTextChangedEvent = new object ();
1369                 static object CellToolTipTextNeededEvent = new object ();
1370                 static object CellValidatedEvent = new object ();
1371                 static object CellValidatingEvent = new object ();
1372                 static object CellValueChangedEvent = new object ();
1373                 static object CellValueNeededEvent = new object ();
1374                 static object CellValuePushedEvent = new object ();
1375                 static object ColumnAddedEvent = new object ();
1376                 static object ColumnContextMenuStripChangedEvent = new object ();
1377                 static object ColumnDataPropertyNameChangedEvent = new object ();
1378                 static object ColumnDefaultCellStyleChangedEvent = new object ();
1379                 static object ColumnDisplayIndexChangedEvent = new object ();
1380                 static object ColumnDividerDoubleClickEvent = new object ();
1381                 static object ColumnDividerWidthChangedEvent = new object ();
1382                 static object ColumnHeaderCellChangedEvent = new object ();
1383                 static object ColumnHeaderMouseClickEvent = new object ();
1384                 static object ColumnHeaderMouseDoubleClickEvent = new object ();
1385                 static object ColumnHeadersBorderStyleChangedEvent = new object ();
1386                 static object ColumnHeadersDefaultCellStyleChangedEvent = new object ();
1387                 static object ColumnHeadersHeightChangedEvent = new object ();
1388                 static object ColumnHeadersHeightSizeModeChangedEvent = new object ();
1389                 static object ColumnMinimumWidthChangedEvent = new object ();
1390                 static object ColumnNameChangedEvent = new object ();
1391                 static object ColumnRemovedEvent = new object ();
1392                 static object ColumnSortModeChangedEvent = new object ();
1393                 static object ColumnStateChangedEvent = new object ();
1394                 static object ColumnToolTipTextChangedEvent = new object ();
1395                 static object ColumnWidthChangedEvent = new object ();
1396                 static object CurrentCellChangedEvent = new object ();
1397                 static object CurrentCellDirtyStateChangedEvent = new object ();
1398                 static object DataBindingCompleteEvent = new object ();
1399                 static object DataErrorEvent = new object ();
1400                 static object DataMemberChangedEvent = new object ();
1401                 static object DataSourceChangedEvent = new object ();
1402                 static object DefaultCellStyleChangedEvent = new object ();
1403                 static object DefaultValuesNeededEvent = new object ();
1404                 static object EditingControlShowingEvent = new object ();
1405                 static object EditModeChangedEvent = new object ();
1406                 static object GridColorChangedEvent = new object ();
1407                 static object MultiSelectChangedEvent = new object ();
1408                 static object NewRowNeededEvent = new object ();
1409                 static object ReadOnlyChangedEvent = new object ();
1410                 static object RowContextMenuStripChangedEvent = new object ();
1411                 static object RowContextMenuStripNeededEvent = new object ();
1412                 static object RowDefaultCellStyleChangedEvent = new object ();
1413                 static object RowDirtyStateNeededEvent = new object ();
1414                 static object RowDividerDoubleClickEvent = new object ();
1415                 static object RowDividerHeightChangedEvent = new object ();
1416                 static object RowEnterEvent = new object ();
1417                 static object RowErrorTextChangedEvent = new object ();
1418                 static object RowErrorTextNeededEvent = new object ();
1419                 static object RowHeaderCellChangedEvent = new object ();
1420                 static object RowHeaderMouseClickEvent = new object ();
1421                 static object RowHeaderMouseDoubleClickEvent = new object ();
1422                 static object RowHeadersBorderStyleChangedEvent = new object ();
1423                 static object RowHeadersDefaultCellStyleChangedEvent = new object ();
1424                 static object RowHeadersWidthChangedEvent = new object ();
1425                 static object RowHeadersWidthSizeModeChangedEvent = new object ();
1426                 static object RowHeightChangedEvent = new object ();
1427                 static object RowHeightInfoNeededEvent = new object ();
1428                 static object RowHeightInfoPushedEvent = new object ();
1429                 static object RowLeaveEvent = new object ();
1430                 static object RowMinimumHeightChangedEvent = new object ();
1431                 static object RowPostPaintEvent = new object ();
1432                 static object RowPrePaintEvent = new object ();
1433                 static object RowsAddedEvent = new object ();
1434                 static object RowsDefaultCellStyleChangedEvent = new object ();
1435                 static object RowsRemovedEvent = new object ();
1436                 static object RowStateChangedEvent = new object ();
1437                 static object RowUnsharedEvent = new object ();
1438                 static object RowValidatedEvent = new object ();
1439                 static object RowValidatingEvent = new object ();
1440                 static object ScrollEvent = new object ();
1441                 static object SelectionChangedEvent = new object ();
1442                 static object SortCompareEvent = new object ();
1443                 static object SortedEvent = new object ();
1444                 static object UserAddedRowEvent = new object ();
1445                 static object UserDeletedRowEvent = new object ();
1446                 static object UserDeletingRowEvent = new object ();
1447
1448
1449                 //
1450
1451                 public event EventHandler AllowUserToAddRowsChanged {
1452                         add { Events.AddHandler (AllowUserToAddRowsChangedEvent, value); }
1453                         remove { Events.RemoveHandler (AllowUserToAddRowsChangedEvent, value); }
1454                 }
1455
1456                 public event EventHandler AllowUserToDeleteRowsChanged {
1457                         add { Events.AddHandler (AllowUserToDeleteRowsChangedEvent, value); }
1458                         remove { Events.RemoveHandler (AllowUserToDeleteRowsChangedEvent, value); }
1459                 }
1460
1461                 public event EventHandler AllowUserToOrderColumnsChanged {
1462                         add { Events.AddHandler (AllowUserToOrderColumnsChangedEvent, value); }
1463                         remove { Events.RemoveHandler (AllowUserToOrderColumnsChangedEvent, value); }
1464                 }
1465
1466                 public event EventHandler AllowUserToResizeColumnsChanged {
1467                         add { Events.AddHandler (AllowUserToResizeColumnsChangedEvent, value); }
1468                         remove { Events.RemoveHandler (AllowUserToResizeColumnsChangedEvent, value); }
1469                 }
1470
1471                 public event EventHandler AllowUserToResizeRowsChanged {
1472                         add { Events.AddHandler (AllowUserToResizeRowsChangedEvent, value); }
1473                         remove { Events.RemoveHandler (AllowUserToResizeRowsChangedEvent, value); }
1474                 }
1475
1476                 public event EventHandler AlternatingRowsDefaultCellStyleChanged {
1477                         add { Events.AddHandler (AlternatingRowsDefaultCellStyleChangedEvent, value); }
1478                         remove { Events.RemoveHandler (AlternatingRowsDefaultCellStyleChangedEvent, value); }
1479                 }
1480
1481                 [Browsable (false)]
1482                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1483                 public event EventHandler AutoGenerateColumnsChanged {
1484                         add { Events.AddHandler (AutoGenerateColumnsChangedEvent, value); }
1485                         remove { Events.RemoveHandler (AutoGenerateColumnsChangedEvent, value); }
1486                 }
1487
1488                 public event DataGridViewAutoSizeColumnModeEventHandler AutoSizeColumnModeChanged {
1489                         add { Events.AddHandler (AutoSizeColumnModeChangedEvent, value); }
1490                         remove { Events.RemoveHandler (AutoSizeColumnModeChangedEvent, value); }
1491                 }
1492
1493                 public event DataGridViewAutoSizeColumnsModeEventHandler AutoSizeColumnsModeChanged {
1494                         add { Events.AddHandler (AutoSizeColumnsModeChangedEvent, value); }
1495                         remove { Events.RemoveHandler (AutoSizeColumnsModeChangedEvent, value); }
1496                 }
1497
1498                 public event DataGridViewAutoSizeModeEventHandler AutoSizeRowsModeChanged {
1499                         add { Events.AddHandler (AutoSizeRowsModeChangedEvent, value); }
1500                         remove { Events.RemoveHandler (AutoSizeRowsModeChangedEvent, value); }
1501                 }
1502
1503                 [Browsable (false)]
1504                 [EditorBrowsable (EditorBrowsableState.Never)]
1505                 public new event EventHandler BackColorChanged {
1506                         add { base.BackColorChanged += value; }
1507                         remove { base.BackColorChanged -= value; }
1508                 }
1509
1510                 public event EventHandler BackgroundColorChanged {
1511                         add { Events.AddHandler (BackgroundColorChangedEvent, value); }
1512                         remove { Events.RemoveHandler (BackgroundColorChangedEvent, value); }
1513                 }
1514
1515                 [Browsable (false)]
1516                 [EditorBrowsable (EditorBrowsableState.Never)]
1517                 public new event EventHandler BackgroundImageChanged {
1518                         add { base.BackgroundImageChanged += value; }
1519                         remove { base.BackgroundImageChanged -= value; }
1520                 }
1521
1522                 [Browsable (false)]
1523                 [EditorBrowsable (EditorBrowsableState.Never)]
1524                 public new event EventHandler BackgroundImageLayoutChanged  {
1525                         add { base.BackgroundImageLayoutChanged += value; }
1526                         remove { base.BackgroundImageLayoutChanged -= value; }
1527                 }
1528
1529                 public event EventHandler BorderStyleChanged {
1530                         add { Events.AddHandler (BorderStyleChangedEvent, value); }
1531                         remove { Events.RemoveHandler (BorderStyleChangedEvent, value); }
1532                 }
1533
1534                 public event QuestionEventHandler CancelRowEdit {
1535                         add { Events.AddHandler (CancelRowEditEvent, value); }
1536                         remove { Events.RemoveHandler (CancelRowEditEvent, value); }
1537                 }
1538
1539                 public event DataGridViewCellCancelEventHandler CellBeginEdit {
1540                         add { Events.AddHandler (CellBeginEditEvent, value); }
1541                         remove { Events.RemoveHandler (CellBeginEditEvent, value); }
1542                 }
1543
1544                 public event EventHandler CellBorderStyleChanged {
1545                         add { Events.AddHandler (CellBorderStyleChangedEvent, value); }
1546                         remove { Events.RemoveHandler (CellBorderStyleChangedEvent, value); }
1547                 }
1548
1549                 public event DataGridViewCellEventHandler CellClick {
1550                         add { Events.AddHandler (CellClickEvent, value); }
1551                         remove { Events.RemoveHandler (CellClickEvent, value); }
1552                 }
1553
1554                 public event DataGridViewCellEventHandler CellContentClick {
1555                         add { Events.AddHandler (CellContentClickEvent, value); }
1556                         remove { Events.RemoveHandler (CellContentClickEvent, value); }
1557                 }
1558
1559                 public event DataGridViewCellEventHandler CellContentDoubleClick {
1560                         add { Events.AddHandler (CellContentDoubleClickEvent, value); }
1561                         remove { Events.RemoveHandler (CellContentDoubleClickEvent, value); }
1562                 }
1563
1564                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1565                 public event DataGridViewCellEventHandler CellContextMenuStripChanged {
1566                         add { Events.AddHandler (CellContextMenuStripChangedEvent, value); }
1567                         remove { Events.RemoveHandler (CellContextMenuStripChangedEvent, value); }
1568                 }
1569
1570                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1571                 public event DataGridViewCellContextMenuStripNeededEventHandler CellContextMenuStripNeeded {
1572                         add { Events.AddHandler (CellContextMenuStripNeededEvent, value); }
1573                         remove { Events.RemoveHandler (CellContextMenuStripNeededEvent, value); }
1574                 }
1575
1576                 public event DataGridViewCellEventHandler CellDoubleClick {
1577                         add { Events.AddHandler (CellDoubleClickEvent, value); }
1578                         remove { Events.RemoveHandler (CellDoubleClickEvent, value); }
1579                 }
1580
1581                 public event DataGridViewCellEventHandler CellEndEdit {
1582                         add { Events.AddHandler (CellEndEditEvent, value); }
1583                         remove { Events.RemoveHandler (CellEndEditEvent, value); }
1584                 }
1585
1586                 public event DataGridViewCellEventHandler CellEnter {
1587                         add { Events.AddHandler (CellEnterEvent, value); }
1588                         remove { Events.RemoveHandler (CellEnterEvent, value); }
1589                 }
1590
1591                 public event DataGridViewCellEventHandler CellErrorTextChanged {
1592                         add { Events.AddHandler (CellErrorTextChangedEvent, value); }
1593                         remove { Events.RemoveHandler (CellErrorTextChangedEvent, value); }
1594                 }
1595
1596                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1597                 public event DataGridViewCellErrorTextNeededEventHandler CellErrorTextNeeded {
1598                         add { Events.AddHandler (CellErrorTextNeededEvent, value); }
1599                         remove { Events.RemoveHandler (CellErrorTextNeededEvent, value); }
1600                 }
1601
1602                 public event DataGridViewCellFormattingEventHandler CellFormatting {
1603                         add { Events.AddHandler (CellFormattingEvent, value); }
1604                         remove { Events.RemoveHandler (CellFormattingEvent, value); }
1605                 }
1606
1607                 public event DataGridViewCellEventHandler CellLeave {
1608                         add { Events.AddHandler (CellLeaveEvent, value); }
1609                         remove { Events.RemoveHandler (CellLeaveEvent, value); }
1610                 }
1611
1612                 public event DataGridViewCellMouseEventHandler CellMouseClick {
1613                         add { Events.AddHandler (CellMouseClickEvent, value); }
1614                         remove { Events.RemoveHandler (CellMouseClickEvent, value); }
1615                 }
1616
1617                 public event DataGridViewCellMouseEventHandler CellMouseDoubleClick {
1618                         add { Events.AddHandler (CellMouseDoubleClickEvent, value); }
1619                         remove { Events.RemoveHandler (CellMouseDoubleClickEvent, value); }
1620                 }
1621
1622                 public event DataGridViewCellMouseEventHandler CellMouseDown {
1623                         add { Events.AddHandler (CellMouseDownEvent, value); }
1624                         remove { Events.RemoveHandler (CellMouseDownEvent, value); }
1625                 }
1626
1627                 public event DataGridViewCellEventHandler CellMouseEnter {
1628                         add { Events.AddHandler (CellMouseEnterEvent, value); }
1629                         remove { Events.RemoveHandler (CellMouseEnterEvent, value); }
1630                 }
1631
1632                 public event DataGridViewCellEventHandler CellMouseLeave {
1633                         add { Events.AddHandler (CellMouseLeaveEvent, value); }
1634                         remove { Events.RemoveHandler (CellMouseLeaveEvent, value); }
1635                 }
1636
1637                 public event DataGridViewCellMouseEventHandler CellMouseMove {
1638                         add { Events.AddHandler (CellMouseMoveEvent, value); }
1639                         remove { Events.RemoveHandler (CellMouseMoveEvent, value); }
1640                 }
1641
1642                 public event DataGridViewCellMouseEventHandler CellMouseUp {
1643                         add { Events.AddHandler (CellMouseUpEvent, value); }
1644                         remove { Events.RemoveHandler (CellMouseUpEvent, value); }
1645                 }
1646
1647                 public event DataGridViewCellPaintingEventHandler CellPainting {
1648                         add { Events.AddHandler (CellPaintingEvent, value); }
1649                         remove { Events.RemoveHandler (CellPaintingEvent, value); }
1650                 }
1651
1652                 public event DataGridViewCellParsingEventHandler CellParsing {
1653                         add { Events.AddHandler (CellParsingEvent, value); }
1654                         remove { Events.RemoveHandler (CellParsingEvent, value); }
1655                 }
1656
1657                 public event DataGridViewCellStateChangedEventHandler CellStateChanged {
1658                         add { Events.AddHandler (CellStateChangedEvent, value); }
1659                         remove { Events.RemoveHandler (CellStateChangedEvent, value); }
1660                 }
1661
1662                 public event DataGridViewCellEventHandler CellStyleChanged {
1663                         add { Events.AddHandler (CellStyleChangedEvent, value); }
1664                         remove { Events.RemoveHandler (CellStyleChangedEvent, value); }
1665                 }
1666
1667                 public event DataGridViewCellStyleContentChangedEventHandler CellStyleContentChanged {
1668                         add { Events.AddHandler (CellStyleContentChangedEvent, value); }
1669                         remove { Events.RemoveHandler (CellStyleContentChangedEvent, value); }
1670                 }
1671
1672                 public event DataGridViewCellEventHandler CellToolTipTextChanged {
1673                         add { Events.AddHandler (CellToolTipTextChangedEvent, value); }
1674                         remove { Events.RemoveHandler (CellToolTipTextChangedEvent, value); }
1675                 }
1676
1677                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1678                 public event DataGridViewCellToolTipTextNeededEventHandler CellToolTipTextNeeded {
1679                         add { Events.AddHandler (CellToolTipTextNeededEvent, value); }
1680                         remove { Events.RemoveHandler (CellToolTipTextNeededEvent, value); }
1681                 }
1682
1683                 public event DataGridViewCellEventHandler CellValidated {
1684                         add { Events.AddHandler (CellValidatedEvent, value); }
1685                         remove { Events.RemoveHandler (CellValidatedEvent, value); }
1686                 }
1687
1688                 public event DataGridViewCellValidatingEventHandler CellValidating {
1689                         add { Events.AddHandler (CellValidatingEvent, value); }
1690                         remove { Events.RemoveHandler (CellValidatingEvent, value); }
1691                 }
1692
1693                 public event DataGridViewCellEventHandler CellValueChanged {
1694                         add { Events.AddHandler (CellValueChangedEvent, value); }
1695                         remove { Events.RemoveHandler (CellValueChangedEvent, value); }
1696                 }
1697
1698                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1699                 public event DataGridViewCellValueEventHandler CellValueNeeded {
1700                         add { Events.AddHandler (CellValueNeededEvent, value); }
1701                         remove { Events.RemoveHandler (CellValueNeededEvent, value); }
1702                 }
1703
1704                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1705                 public event DataGridViewCellValueEventHandler CellValuePushed {
1706                         add { Events.AddHandler (CellValuePushedEvent, value); }
1707                         remove { Events.RemoveHandler (CellValuePushedEvent, value); }
1708                 }
1709
1710                 public event DataGridViewColumnEventHandler ColumnAdded {
1711                         add { Events.AddHandler (ColumnAddedEvent, value); }
1712                         remove { Events.RemoveHandler (ColumnAddedEvent, value); }
1713                 }
1714
1715                 public event DataGridViewColumnEventHandler ColumnContextMenuStripChanged {
1716                         add { Events.AddHandler (ColumnContextMenuStripChangedEvent, value); }
1717                         remove { Events.RemoveHandler (ColumnContextMenuStripChangedEvent, value); }
1718                 }
1719
1720                 public event DataGridViewColumnEventHandler ColumnDataPropertyNameChanged {
1721                         add { Events.AddHandler (ColumnDataPropertyNameChangedEvent, value); }
1722                         remove { Events.RemoveHandler (ColumnDataPropertyNameChangedEvent, value); }
1723                 }
1724
1725                 public event DataGridViewColumnEventHandler ColumnDefaultCellStyleChanged {
1726                         add { Events.AddHandler (ColumnDefaultCellStyleChangedEvent, value); }
1727                         remove { Events.RemoveHandler (ColumnDefaultCellStyleChangedEvent, value); }
1728                 }
1729
1730                 public event DataGridViewColumnEventHandler ColumnDisplayIndexChanged {
1731                         add { Events.AddHandler (ColumnDisplayIndexChangedEvent, value); }
1732                         remove { Events.RemoveHandler (ColumnDisplayIndexChangedEvent, value); }
1733                 }
1734
1735                 public event DataGridViewColumnDividerDoubleClickEventHandler ColumnDividerDoubleClick {
1736                         add { Events.AddHandler (ColumnDividerDoubleClickEvent, value); }
1737                         remove { Events.RemoveHandler (ColumnDividerDoubleClickEvent, value); }
1738                 }
1739
1740                 public event DataGridViewColumnEventHandler ColumnDividerWidthChanged {
1741                         add { Events.AddHandler (ColumnDividerWidthChangedEvent, value); }
1742                         remove { Events.RemoveHandler (ColumnDividerWidthChangedEvent, value); }
1743                 }
1744
1745                 public event DataGridViewColumnEventHandler ColumnHeaderCellChanged {
1746                         add { Events.AddHandler (ColumnHeaderCellChangedEvent, value); }
1747                         remove { Events.RemoveHandler (ColumnHeaderCellChangedEvent, value); }
1748                 }
1749
1750                 public event DataGridViewCellMouseEventHandler ColumnHeaderMouseClick {
1751                         add { Events.AddHandler (ColumnHeaderMouseClickEvent, value); }
1752                         remove { Events.RemoveHandler (ColumnHeaderMouseClickEvent, value); }
1753                 }
1754
1755                 public event DataGridViewCellMouseEventHandler ColumnHeaderMouseDoubleClick {
1756                         add { Events.AddHandler (ColumnHeaderMouseDoubleClickEvent, value); }
1757                         remove { Events.RemoveHandler (ColumnHeaderMouseDoubleClickEvent, value); }
1758                 }
1759
1760                 public event EventHandler ColumnHeadersBorderStyleChanged {
1761                         add { Events.AddHandler (ColumnHeadersBorderStyleChangedEvent, value); }
1762                         remove { Events.RemoveHandler (ColumnHeadersBorderStyleChangedEvent, value); }
1763                 }
1764
1765                 public event EventHandler ColumnHeadersDefaultCellStyleChanged {
1766                         add { Events.AddHandler (ColumnHeadersDefaultCellStyleChangedEvent, value); }
1767                         remove { Events.RemoveHandler (ColumnHeadersDefaultCellStyleChangedEvent, value); }
1768                 }
1769
1770                 public event EventHandler ColumnHeadersHeightChanged {
1771                         add { Events.AddHandler (ColumnHeadersHeightChangedEvent, value); }
1772                         remove { Events.RemoveHandler (ColumnHeadersHeightChangedEvent, value); }
1773                 }
1774
1775                 public event DataGridViewAutoSizeModeEventHandler ColumnHeadersHeightSizeModeChanged {
1776                         add { Events.AddHandler (ColumnHeadersHeightSizeModeChangedEvent, value); }
1777                         remove { Events.RemoveHandler (ColumnHeadersHeightSizeModeChangedEvent, value); }
1778                 }
1779
1780                 public event DataGridViewColumnEventHandler ColumnMinimumWidthChanged {
1781                         add { Events.AddHandler (ColumnMinimumWidthChangedEvent, value); }
1782                         remove { Events.RemoveHandler (ColumnMinimumWidthChangedEvent, value); }
1783                 }
1784
1785                 public event DataGridViewColumnEventHandler ColumnNameChanged {
1786                         add { Events.AddHandler (ColumnNameChangedEvent, value); }
1787                         remove { Events.RemoveHandler (ColumnNameChangedEvent, value); }
1788                 }
1789
1790                 public event DataGridViewColumnEventHandler ColumnRemoved {
1791                         add { Events.AddHandler (ColumnRemovedEvent, value); }
1792                         remove { Events.RemoveHandler (ColumnRemovedEvent, value); }
1793                 }
1794
1795                 public event DataGridViewColumnEventHandler ColumnSortModeChanged {
1796                         add { Events.AddHandler (ColumnSortModeChangedEvent, value); }
1797                         remove { Events.RemoveHandler (ColumnSortModeChangedEvent, value); }
1798                 }
1799
1800                 public event DataGridViewColumnStateChangedEventHandler ColumnStateChanged {
1801                         add { Events.AddHandler (ColumnStateChangedEvent, value); }
1802                         remove { Events.RemoveHandler (ColumnStateChangedEvent, value); }
1803                 }
1804
1805                 public event DataGridViewColumnEventHandler ColumnToolTipTextChanged {
1806                         add { Events.AddHandler (ColumnToolTipTextChangedEvent, value); }
1807                         remove { Events.RemoveHandler (ColumnToolTipTextChangedEvent, value); }
1808                 }
1809
1810                 public event DataGridViewColumnEventHandler ColumnWidthChanged {
1811                         add { Events.AddHandler (ColumnWidthChangedEvent, value); }
1812                         remove { Events.RemoveHandler (ColumnWidthChangedEvent, value); }
1813                 }
1814
1815                 public event EventHandler CurrentCellChanged {
1816                         add { Events.AddHandler (CurrentCellChangedEvent, value); }
1817                         remove { Events.RemoveHandler (CurrentCellChangedEvent, value); }
1818                 }
1819
1820                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1821                 public event EventHandler CurrentCellDirtyStateChanged {
1822                         add { Events.AddHandler (CurrentCellDirtyStateChangedEvent, value); }
1823                         remove { Events.RemoveHandler (CurrentCellDirtyStateChangedEvent, value); }
1824                 }
1825
1826                 public event DataGridViewBindingCompleteEventHandler DataBindingComplete {
1827                         add { Events.AddHandler (DataBindingCompleteEvent, value); }
1828                         remove { Events.RemoveHandler (DataBindingCompleteEvent, value); }
1829                 }
1830
1831                 public event DataGridViewDataErrorEventHandler DataError {
1832                         add { Events.AddHandler (DataErrorEvent, value); }
1833                         remove { Events.RemoveHandler (DataErrorEvent, value); }
1834                 }
1835
1836                 public event EventHandler DataMemberChanged {
1837                         add { Events.AddHandler (DataMemberChangedEvent, value); }
1838                         remove { Events.RemoveHandler (DataMemberChangedEvent, value); }
1839                 }
1840
1841                 public event EventHandler DataSourceChanged {
1842                         add { Events.AddHandler (DataSourceChangedEvent, value); }
1843                         remove { Events.RemoveHandler (DataSourceChangedEvent, value); }
1844                 }
1845
1846                 public event EventHandler DefaultCellStyleChanged {
1847                         add { Events.AddHandler (DefaultCellStyleChangedEvent, value); }
1848                         remove { Events.RemoveHandler (DefaultCellStyleChangedEvent, value); }
1849                 }
1850
1851                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1852                 public event DataGridViewRowEventHandler DefaultValuesNeeded {
1853                         add { Events.AddHandler (DefaultValuesNeededEvent, value); }
1854                         remove { Events.RemoveHandler (DefaultValuesNeededEvent, value); }
1855                 }
1856
1857                 public event DataGridViewEditingControlShowingEventHandler EditingControlShowing {
1858                         add { Events.AddHandler (EditingControlShowingEvent, value); }
1859                         remove { Events.RemoveHandler (EditingControlShowingEvent, value); }
1860                 }
1861
1862                 public event EventHandler EditModeChanged {
1863                         add { Events.AddHandler (EditModeChangedEvent, value); }
1864                         remove { Events.RemoveHandler (EditModeChangedEvent, value); }
1865                 }
1866
1867                 [Browsable (false)]
1868                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1869                 public new event EventHandler FontChanged {
1870                         add { base.FontChanged += value; }
1871                         remove { base.FontChanged -= value; }
1872                 }
1873
1874                 [Browsable (false)]
1875                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1876                 public new event EventHandler ForeColorChanged {
1877                         add { base.ForeColorChanged += value; }
1878                         remove { base.ForeColorChanged -= value; }
1879                 }
1880
1881                 [Browsable (false)]
1882                 [EditorBrowsable (EditorBrowsableState.Never)]
1883                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
1884                 public new event EventHandler PaddingChanged {
1885                         add { base.PaddingChanged += value; }
1886                         remove { base.PaddingChanged -= value; }
1887                 }
1888
1889                 public event EventHandler GridColorChanged {
1890                         add { Events.AddHandler (GridColorChangedEvent, value); }
1891                         remove { Events.RemoveHandler (GridColorChangedEvent, value); }
1892                 }
1893
1894                 public event EventHandler MultiSelectChanged {
1895                         add { Events.AddHandler (MultiSelectChangedEvent, value); }
1896                         remove { Events.RemoveHandler (MultiSelectChangedEvent, value); }
1897                 }
1898
1899                 public event DataGridViewRowEventHandler NewRowNeeded {
1900                         add { Events.AddHandler (NewRowNeededEvent, value); }
1901                         remove { Events.RemoveHandler (NewRowNeededEvent, value); }
1902                 }
1903
1904                 public event EventHandler ReadOnlyChanged {
1905                         add { Events.AddHandler (ReadOnlyChangedEvent, value); }
1906                         remove { Events.RemoveHandler (ReadOnlyChangedEvent, value); }
1907                 }
1908
1909                 public event DataGridViewRowEventHandler RowContextMenuStripChanged {
1910                         add { Events.AddHandler (RowContextMenuStripChangedEvent, value); }
1911                         remove { Events.RemoveHandler (RowContextMenuStripChangedEvent, value); }
1912                 }
1913
1914                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1915                 public event DataGridViewRowContextMenuStripNeededEventHandler RowContextMenuStripNeeded {
1916                         add { Events.AddHandler (RowContextMenuStripNeededEvent, value); }
1917                         remove { Events.RemoveHandler (RowContextMenuStripNeededEvent, value); }
1918                 }
1919
1920                 public event DataGridViewRowEventHandler RowDefaultCellStyleChanged {
1921                         add { Events.AddHandler (RowDefaultCellStyleChangedEvent, value); }
1922                         remove { Events.RemoveHandler (RowDefaultCellStyleChangedEvent, value); }
1923                 }
1924
1925                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1926                 public event QuestionEventHandler RowDirtyStateNeeded {
1927                         add { Events.AddHandler (RowDirtyStateNeededEvent, value); }
1928                         remove { Events.RemoveHandler (RowDirtyStateNeededEvent, value); }
1929                 }
1930
1931                 public event DataGridViewRowDividerDoubleClickEventHandler RowDividerDoubleClick {
1932                         add { Events.AddHandler (RowDividerDoubleClickEvent, value); }
1933                         remove { Events.RemoveHandler (RowDividerDoubleClickEvent, value); }
1934                 }
1935
1936                 public event DataGridViewRowEventHandler RowDividerHeightChanged {
1937                         add { Events.AddHandler (RowDividerHeightChangedEvent, value); }
1938                         remove { Events.RemoveHandler (RowDividerHeightChangedEvent, value); }
1939                 }
1940
1941                 public event DataGridViewCellEventHandler RowEnter {
1942                         add { Events.AddHandler (RowEnterEvent, value); }
1943                         remove { Events.RemoveHandler (RowEnterEvent, value); }
1944                 }
1945
1946                 public event DataGridViewRowEventHandler RowErrorTextChanged {
1947                         add { Events.AddHandler (RowErrorTextChangedEvent, value); }
1948                         remove { Events.RemoveHandler (RowErrorTextChangedEvent, value); }
1949                 }
1950
1951                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1952                 public event DataGridViewRowErrorTextNeededEventHandler RowErrorTextNeeded {
1953                         add { Events.AddHandler (RowErrorTextNeededEvent, value); }
1954                         remove { Events.RemoveHandler (RowErrorTextNeededEvent, value); }
1955                 }
1956
1957                 public event DataGridViewRowEventHandler RowHeaderCellChanged {
1958                         add { Events.AddHandler (RowHeaderCellChangedEvent, value); }
1959                         remove { Events.RemoveHandler (RowHeaderCellChangedEvent, value); }
1960                 }
1961
1962                 public event DataGridViewCellMouseEventHandler RowHeaderMouseClick {
1963                         add { Events.AddHandler (RowHeaderMouseClickEvent, value); }
1964                         remove { Events.RemoveHandler (RowHeaderMouseClickEvent, value); }
1965                 }
1966
1967                 public event DataGridViewCellMouseEventHandler RowHeaderMouseDoubleClick {
1968                         add { Events.AddHandler (RowHeaderMouseDoubleClickEvent, value); }
1969                         remove { Events.RemoveHandler (RowHeaderMouseDoubleClickEvent, value); }
1970                 }
1971
1972                 public event EventHandler RowHeadersBorderStyleChanged {
1973                         add { Events.AddHandler (RowHeadersBorderStyleChangedEvent, value); }
1974                         remove { Events.RemoveHandler (RowHeadersBorderStyleChangedEvent, value); }
1975                 }
1976
1977                 public event EventHandler RowHeadersDefaultCellStyleChanged {
1978                         add { Events.AddHandler (RowHeadersDefaultCellStyleChangedEvent, value); }
1979                         remove { Events.RemoveHandler (RowHeadersDefaultCellStyleChangedEvent, value); }
1980                 }
1981
1982                 public event EventHandler RowHeadersWidthChanged {
1983                         add { Events.AddHandler (RowHeadersWidthChangedEvent, value); }
1984                         remove { Events.RemoveHandler (RowHeadersWidthChangedEvent, value); }
1985                 }
1986
1987                 public event DataGridViewAutoSizeModeEventHandler RowHeadersWidthSizeModeChanged {
1988                         add { Events.AddHandler (RowHeadersWidthSizeModeChangedEvent, value); }
1989                         remove { Events.RemoveHandler (RowHeadersWidthSizeModeChangedEvent, value); }
1990                 }
1991
1992                 public event DataGridViewRowEventHandler RowHeightChanged {
1993                         add { Events.AddHandler (RowHeightChangedEvent, value); }
1994                         remove { Events.RemoveHandler (RowHeightChangedEvent, value); }
1995                 }
1996
1997                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1998                 public event DataGridViewRowHeightInfoNeededEventHandler RowHeightInfoNeeded {
1999                         add { Events.AddHandler (RowHeightInfoNeededEvent, value); }
2000                         remove { Events.RemoveHandler (RowHeightInfoNeededEvent, value); }
2001                 }
2002
2003                 [EditorBrowsable (EditorBrowsableState.Advanced)]
2004                 public event DataGridViewRowHeightInfoPushedEventHandler RowHeightInfoPushed {
2005                         add { Events.AddHandler (RowHeightInfoPushedEvent, value); }
2006                         remove { Events.RemoveHandler (RowHeightInfoPushedEvent, value); }
2007                 }
2008
2009                 public event DataGridViewCellEventHandler RowLeave {
2010                         add { Events.AddHandler (RowLeaveEvent, value); }
2011                         remove { Events.RemoveHandler (RowLeaveEvent, value); }
2012                 }
2013
2014                 public event DataGridViewRowEventHandler RowMinimumHeightChanged {
2015                         add { Events.AddHandler (RowMinimumHeightChangedEvent, value); }
2016                         remove { Events.RemoveHandler (RowMinimumHeightChangedEvent, value); }
2017                 }
2018
2019                 public event DataGridViewRowPostPaintEventHandler RowPostPaint {
2020                         add { Events.AddHandler (RowPostPaintEvent, value); }
2021                         remove { Events.RemoveHandler (RowPostPaintEvent, value); }
2022                 }
2023
2024                 public event DataGridViewRowPrePaintEventHandler RowPrePaint {
2025                         add { Events.AddHandler (RowPrePaintEvent, value); }
2026                         remove { Events.RemoveHandler (RowPrePaintEvent, value); }
2027                 }
2028
2029                 public event DataGridViewRowsAddedEventHandler RowsAdded {
2030                         add { Events.AddHandler (RowsAddedEvent, value); }
2031                         remove { Events.RemoveHandler (RowsAddedEvent, value); }
2032                 }
2033
2034                 public event EventHandler RowsDefaultCellStyleChanged {
2035                         add { Events.AddHandler (RowsDefaultCellStyleChangedEvent, value); }
2036                         remove { Events.RemoveHandler (RowsDefaultCellStyleChangedEvent, value); }
2037                 }
2038
2039                 public event DataGridViewRowsRemovedEventHandler RowsRemoved {
2040                         add { Events.AddHandler (RowsRemovedEvent, value); }
2041                         remove { Events.RemoveHandler (RowsRemovedEvent, value); }
2042                 }
2043
2044                 public event DataGridViewRowStateChangedEventHandler RowStateChanged {
2045                         add { Events.AddHandler (RowStateChangedEvent, value); }
2046                         remove { Events.RemoveHandler (RowStateChangedEvent, value); }
2047                 }
2048
2049                 [EditorBrowsable (EditorBrowsableState.Advanced)]
2050                 public event DataGridViewRowEventHandler RowUnshared {
2051                         add { Events.AddHandler (RowUnsharedEvent, value); }
2052                         remove { Events.RemoveHandler (RowUnsharedEvent, value); }
2053                 }
2054
2055                 public event DataGridViewCellEventHandler RowValidated {
2056                         add { Events.AddHandler (RowValidatedEvent, value); }
2057                         remove { Events.RemoveHandler (RowValidatedEvent, value); }
2058                 }
2059
2060                 public event DataGridViewCellCancelEventHandler RowValidating {
2061                         add { Events.AddHandler (RowValidatingEvent, value); }
2062                         remove { Events.RemoveHandler (RowValidatingEvent, value); }
2063                 }
2064
2065                 public event ScrollEventHandler Scroll {
2066                         add { Events.AddHandler (ScrollEvent, value); }
2067                         remove { Events.RemoveHandler (ScrollEvent, value); }
2068                 }
2069
2070                 public event EventHandler SelectionChanged {
2071                         add { Events.AddHandler (SelectionChangedEvent, value); }
2072                         remove { Events.RemoveHandler (SelectionChangedEvent, value); }
2073                 }
2074
2075                 [EditorBrowsable (EditorBrowsableState.Advanced)]
2076                 public event DataGridViewSortCompareEventHandler SortCompare {
2077                         add { Events.AddHandler (SortCompareEvent, value); }
2078                         remove { Events.RemoveHandler (SortCompareEvent, value); }
2079                 }
2080
2081                 public event EventHandler Sorted {
2082                         add { Events.AddHandler (SortedEvent, value); }
2083                         remove { Events.RemoveHandler (SortedEvent, value); }
2084                 }
2085
2086                 public event DataGridViewRowEventHandler UserAddedRow {
2087                         add { Events.AddHandler (UserAddedRowEvent, value); }
2088                         remove { Events.RemoveHandler (UserAddedRowEvent, value); }
2089                 }
2090
2091                 public event DataGridViewRowEventHandler UserDeletedRow {
2092                         add { Events.AddHandler (UserDeletedRowEvent, value); }
2093                         remove { Events.RemoveHandler (UserDeletedRowEvent, value); }
2094                 }
2095
2096                 public event DataGridViewRowCancelEventHandler UserDeletingRow {
2097                         add { Events.AddHandler (UserDeletingRowEvent, value); }
2098                         remove { Events.RemoveHandler (UserDeletingRowEvent, value); }
2099                 }
2100
2101                 [Browsable (false)]
2102                 [EditorBrowsable (EditorBrowsableState.Never)]
2103                 public new event EventHandler StyleChanged {
2104                         add { base.StyleChanged += value; }
2105                         remove { base.StyleChanged -= value; }
2106                 }
2107
2108                 [Browsable (false)]
2109                 [EditorBrowsable (EditorBrowsableState.Never)]
2110                 public new event EventHandler TextChanged {
2111                         add { base.TextChanged += value; }
2112                         remove { base.TextChanged -= value; }
2113                 }
2114
2115                 [EditorBrowsable (EditorBrowsableState.Advanced)]
2116                 public virtual DataGridViewAdvancedBorderStyle AdjustColumnHeaderBorderStyle (DataGridViewAdvancedBorderStyle dataGridViewAdvancedBorderStyleInput, DataGridViewAdvancedBorderStyle dataGridViewAdvancedBorderStylePlaceholder, bool isFirstDisplayedColumn, bool isLastVisibleColumn) {
2117                         return (DataGridViewAdvancedBorderStyle) ((ICloneable)dataGridViewAdvancedBorderStyleInput).Clone();
2118                 }
2119
2120                 public bool AreAllCellsSelected (bool includeInvisibleCells) {
2121                         foreach (DataGridViewRow row in rows) {
2122                                 foreach (DataGridViewCell cell in row.Cells) {
2123                                         if (includeInvisibleCells == false && cell.Visible == false) {
2124                                                 continue;
2125                                         }
2126                                         if (!cell.Selected) {
2127                                                 return false;
2128                                         }
2129                                 }
2130                         }
2131                         return true;
2132                 }
2133
2134                 public void AutoResizeColumn (int columnIndex) {
2135                         AutoResizeColumn (columnIndex, DataGridViewAutoSizeColumnMode.AllCells);
2136                 }
2137
2138                 public void AutoResizeColumn (int columnIndex, DataGridViewAutoSizeColumnMode autoSizeColumnMode)
2139                 {
2140                         AutoResizeColumnInternal (columnIndex, autoSizeColumnMode);
2141                 }
2142
2143                 public void AutoResizeColumnHeadersHeight ()
2144                 {
2145                         int new_height = 0;
2146
2147                         foreach (DataGridViewColumn col in Columns)
2148                                 new_height = Math.Max (new_height, col.HeaderCell.PreferredSize.Height);
2149
2150                         if (ColumnHeadersHeight != new_height)
2151                                 ColumnHeadersHeight = new_height;
2152                 }
2153
2154                 [MonoTODO ("columnIndex parameter is not used")]
2155                 public void AutoResizeColumnHeadersHeight (int columnIndex)
2156                 {
2157                         AutoResizeColumnHeadersHeight ();
2158                 }
2159
2160                 public void AutoResizeColumns () {
2161                         AutoResizeColumns (DataGridViewAutoSizeColumnsMode.AllCells);
2162                 }
2163
2164                 public void AutoResizeColumns (DataGridViewAutoSizeColumnsMode autoSizeColumnsMode) {
2165                         AutoResizeColumns (autoSizeColumnsMode, true);
2166                 }
2167
2168                 public void AutoResizeRow (int rowIndex)
2169                 {
2170                         AutoResizeRow (rowIndex, DataGridViewAutoSizeRowMode.AllCells, true);
2171                 }
2172
2173                 public void AutoResizeRow (int rowIndex, DataGridViewAutoSizeRowMode autoSizeRowMode)
2174                 {
2175                         AutoResizeRow (rowIndex, autoSizeRowMode, true);
2176                 }
2177
2178                 public void AutoResizeRowHeadersWidth (DataGridViewRowHeadersWidthSizeMode rowHeadersWidthSizeMode)
2179                 {
2180                         if (rowHeadersWidthSizeMode == DataGridViewRowHeadersWidthSizeMode.AutoSizeToFirstHeader) {
2181                                 RowHeadersWidth = GetRowInternal (0).HeaderCell.PreferredSize.Width;
2182                                 return;
2183                         }
2184
2185                         int new_width = 0;
2186
2187                         if (rowHeadersWidthSizeMode == DataGridViewRowHeadersWidthSizeMode.AutoSizeToDisplayedHeaders) {
2188                                 foreach (DataGridViewRow row in Rows)
2189                                         if (row.Displayed)
2190                                                 new_width = Math.Max (new_width, row.HeaderCell.PreferredSize.Width);
2191
2192                                 if (RowHeadersWidth != new_width)
2193                                         RowHeadersWidth = new_width;
2194
2195                                 return;
2196                         }
2197
2198                         if (rowHeadersWidthSizeMode == DataGridViewRowHeadersWidthSizeMode.AutoSizeToAllHeaders) {
2199                                 foreach (DataGridViewRow row in Rows)
2200                                         new_width = Math.Max (new_width, row.HeaderCell.PreferredSize.Width);
2201
2202                                 if (RowHeadersWidth != new_width)
2203                                         RowHeadersWidth = new_width;
2204
2205                                 return;
2206                         }
2207                 }
2208
2209                 [MonoTODO ("Does not use rowIndex parameter.")]
2210                 public void AutoResizeRowHeadersWidth (int rowIndex, DataGridViewRowHeadersWidthSizeMode rowHeadersWidthSizeMode)
2211                 {
2212                         AutoResizeRowHeadersWidth (rowHeadersWidthSizeMode);
2213                 }
2214
2215                 public void AutoResizeRows ()
2216                 {
2217                         AutoResizeRows (0, Rows.Count, DataGridViewAutoSizeRowMode.AllCells, false);
2218                 }
2219
2220                 public void AutoResizeRows (DataGridViewAutoSizeRowsMode autoSizeRowsMode)
2221                 {
2222                         if (!Enum.IsDefined(typeof(DataGridViewAutoSizeRowsMode), autoSizeRowsMode))
2223                                 throw new InvalidEnumArgumentException ("Parameter autoSizeRowsMode is not a valid DataGridViewRowsMode.");
2224                         if ((autoSizeRowsMode == DataGridViewAutoSizeRowsMode.AllHeaders || autoSizeRowsMode == DataGridViewAutoSizeRowsMode.DisplayedHeaders) && rowHeadersVisible == false)
2225                                 throw new InvalidOperationException ("Parameter autoSizeRowsMode cannot be AllHeaders or DisplayedHeaders in this DataGridView.");
2226                         if (autoSizeRowsMode == DataGridViewAutoSizeRowsMode.None)
2227                                 throw new ArgumentException ("Parameter autoSizeRowsMode cannot be None.");
2228
2229                         AutoResizeRows (autoSizeRowsMode, false);
2230                 }
2231
2232                 public virtual bool BeginEdit (bool selectAll) {
2233                         if (currentCell == null || currentCell.IsInEditMode)
2234                                 return false;
2235
2236                         if (currentCell.RowIndex >= 0) {
2237                                 if ((currentCell.InheritedState & DataGridViewElementStates.ReadOnly) == DataGridViewElementStates.ReadOnly) {
2238                                         return false;
2239                                 }
2240                         }
2241
2242                         DataGridViewCell cell = currentCell;
2243                         Type editType = cell.EditType;
2244
2245                         if (editType == null && !(cell is IDataGridViewEditingCell))
2246                                 return false;
2247
2248                         // Give user a chance to cancel the edit
2249                         DataGridViewCellCancelEventArgs e = new DataGridViewCellCancelEventArgs (cell.ColumnIndex, cell.RowIndex);
2250                         OnCellBeginEdit (e);
2251
2252                         if (e.Cancel)
2253                                 return false;
2254
2255                         // If the user begins an edit in the NewRow, add a new row
2256                         if (CurrentCell.RowIndex == NewRowIndex) {
2257                                 new_row_commited = false;
2258                                 OnUserAddedRow (new DataGridViewRowEventArgs (Rows[NewRowIndex]));
2259                         }
2260
2261                         cell.SetIsInEditMode (true);
2262
2263                         // The cell has an editing control we need to setup
2264                         if (editType != null) {
2265                                 Control ctrl = EditingControlInternal;
2266
2267                                 // Check if we can reuse the one we already have
2268                                 bool isCorrectType = ctrl != null && ctrl.GetType () == editType;
2269
2270                                 if (!isCorrectType)
2271                                         ctrl = null;
2272
2273                                 // We couldn't use the existing one, create a new one
2274                                 if (ctrl == null) {
2275                                         ctrl = (Control) Activator.CreateInstance (editType);
2276                                         EditingControlInternal = ctrl;
2277                                 }
2278
2279                                 // Call some functions that allows the editing control to get setup
2280                                 DataGridViewCellStyle style = cell.RowIndex == -1 ? DefaultCellStyle : cell.InheritedStyle;
2281
2282                                 cell.InitializeEditingControl (cell.RowIndex, cell.FormattedValue, style);
2283                                 cell.PositionEditingControl (true, true, this.GetCellDisplayRectangle (cell.ColumnIndex, cell.RowIndex, false), bounds, style, false, false, (columns [cell.ColumnIndex].DisplayIndex == 0), (cell.RowIndex == 0));
2284
2285                                 // Show the editing control
2286                                 EditingControlInternal.Visible = true;
2287
2288                                 // Allow editing control to set focus as needed
2289                                 (EditingControlInternal as IDataGridViewEditingControl).PrepareEditingControlForEdit (selectAll);
2290
2291                                 return true;
2292                         }
2293
2294                         // If we are here, it means we have a cell that does not have an editing control
2295                         // and simply implements IDataGridViewEditingCell itself.
2296                         (cell as IDataGridViewEditingCell).PrepareEditingCellForEdit (selectAll);
2297
2298                         return true;
2299                 }
2300
2301                 public bool CancelEdit ()
2302                 {
2303                         if (currentCell != null && currentCell.IsInEditMode) {
2304                                 // The user's typing caused a new row to be created, but
2305                                 // now they are canceling that typing, we have to remove
2306                                 // the new row we added.
2307                                 if (!new_row_commited) {
2308                                         DataGridViewRow delete_row = EditingRow;
2309                                         Rows.RemoveInternal (delete_row);
2310                                         editing_row = Rows[currentCell.RowIndex];
2311                                         OnUserDeletedRow (new DataGridViewRowEventArgs (delete_row));
2312                                         new_row_commited = true;
2313                                 }
2314
2315                                 currentCell.SetIsInEditMode (false);
2316                                 currentCell.DetachEditingControl ();
2317                                 OnCellEndEdit (new DataGridViewCellEventArgs (currentCell.ColumnIndex, currentCell.RowIndex));
2318                         }
2319
2320                         return true;
2321                 }
2322
2323                 public void ClearSelection ()
2324                 {
2325                         foreach (DataGridViewColumn col in SelectedColumns)
2326                                 col.Selected = false;
2327                         foreach (DataGridViewRow row in SelectedRows)
2328                                 row.Selected = false;
2329                         foreach (DataGridViewCell cell in SelectedCells)
2330                                 cell.Selected = false;
2331                 }
2332
2333                 public bool CommitEdit (DataGridViewDataErrorContexts context)
2334                 {
2335                         if (currentCell != null && currentCell.IsInEditMode) {
2336                                 IDataGridViewEditingControl ctrl = EditingControl as IDataGridViewEditingControl;
2337                                 ctrl.GetEditingControlFormattedValue (DataGridViewDataErrorContexts.Commit);
2338                                 currentCell.Value = ctrl.GetEditingControlFormattedValue (DataGridViewDataErrorContexts.Commit);
2339                                 return true;
2340                         }
2341
2342                         return false;
2343                 }
2344
2345                 [MonoTODO ("Always includes partial columns")]
2346                 public int DisplayedColumnCount (bool includePartialColumns)
2347                 {
2348                         int result = 0;
2349
2350                         for (int i = first_col_index; i < Columns.Count; i++)
2351                                 if (Columns.ColumnDisplayIndexSortedArrayList[i].Displayed)
2352                                         result++;
2353                                 else
2354                                         break;
2355
2356                         return result;
2357                 }
2358
2359                 public int DisplayedRowCount (bool includePartialRow)
2360                 {
2361                         int result = 0;
2362                         int rowTop = 0;
2363
2364                         if (ColumnHeadersVisible)
2365                                 rowTop += ColumnHeadersHeight;
2366
2367                         for (int index = first_row_index; index < Rows.Count; index++) {
2368                                 DataGridViewRow row = GetRowInternal (index);
2369                                 if (rowTop + row.Height < ClientSize.Height) {
2370                                         result++;
2371                                         rowTop += row.Height;
2372                                 } else {
2373                                         if (includePartialRow)
2374                                                 result++;
2375                                         break;
2376                                 }
2377                         }
2378
2379                         return result;
2380                 }
2381
2382                 public bool EndEdit ()
2383                 {
2384                         if (currentCell != null && currentCell.IsInEditMode) {
2385                                 if (EditingControl != null) {
2386                                         IDataGridViewEditingControl ctrl = EditingControl as IDataGridViewEditingControl;
2387                                         ctrl.GetEditingControlFormattedValue (DataGridViewDataErrorContexts.Commit);
2388                                         currentCell.Value = ctrl.GetEditingControlFormattedValue (DataGridViewDataErrorContexts.Commit);
2389
2390                                         currentCell.SetIsInEditMode (false);
2391                                         currentCell.DetachEditingControl ();
2392                                 } else if (currentCell is IDataGridViewEditingCell) {
2393                                         currentCell.Value = (currentCell as IDataGridViewEditingCell).EditingCellFormattedValue;
2394                                         currentCell.SetIsInEditMode (false);
2395                                 }
2396
2397                                 new_row_commited = true;
2398                                 OnCellEndEdit (new DataGridViewCellEventArgs (currentCell.ColumnIndex, currentCell.RowIndex));
2399                         }
2400
2401                         return true;
2402                 }
2403
2404                 [MonoTODO ("Does not use context parameter")]
2405                 public bool EndEdit (DataGridViewDataErrorContexts context)
2406                 {
2407                         return EndEdit ();
2408                 }
2409
2410                 public int GetCellCount (DataGridViewElementStates includeFilter) {
2411                         int result = 0;
2412                         foreach (DataGridViewRow row in rows) {
2413                                 foreach (DataGridViewCell cell in row.Cells) {
2414                                         if ((cell.State & includeFilter) != 0) {
2415                                                 result++;
2416                                         }
2417                                 }
2418                         }
2419                         return result;
2420                 }
2421
2422                 internal DataGridViewRow GetRowInternal (int rowIndex)
2423                 {
2424                         return Rows.SharedRow (rowIndex);
2425                 }
2426
2427                 internal DataGridViewCell GetCellInternal (int colIndex, int rowIndex)
2428                 {
2429                         return GetRowInternal (rowIndex).Cells.GetCellInternal (colIndex);
2430                 }
2431
2432                 public Rectangle GetCellDisplayRectangle (int columnIndex, int rowIndex, bool cutOverflow) {
2433                         if (columnIndex < 0 || columnIndex >= columns.Count) {
2434                                 throw new ArgumentOutOfRangeException("Column index is out of range.");
2435                         }
2436
2437                         int x = 0, y = 0, w = 0, h = 0;
2438
2439                         x = BorderWidth;
2440                         y = BorderWidth;
2441
2442                         if (ColumnHeadersVisible)
2443                                 y += ColumnHeadersHeight;
2444
2445                         if (RowHeadersVisible)
2446                                 x += RowHeadersWidth;
2447
2448                         List<DataGridViewColumn> cols = columns.ColumnDisplayIndexSortedArrayList;
2449
2450                         for (int i = first_col_index; i < cols.Count; i++) {
2451                                 if (!cols[i].Visible)
2452                                         continue;
2453
2454                                 if (cols[i].Index == columnIndex) {
2455                                         w = cols[i].Width;
2456                                         break;
2457                                 }
2458
2459                                 x += cols[i].Width;
2460                         }
2461
2462                         for (int i = first_row_index; i < Rows.Count; i++) {
2463                                 if (i == rowIndex) {
2464                                         h = rows [i].Height;
2465                                         break;
2466                                 }
2467
2468                                 y += rows [i].Height;
2469                         }
2470
2471                         return new Rectangle (x, y, w, h);
2472                 }
2473
2474                 public virtual DataObject GetClipboardContent () {
2475
2476                         if (clipboardCopyMode == DataGridViewClipboardCopyMode.Disable)
2477                                 throw new InvalidOperationException ("Generating Clipboard content is not supported when the ClipboardCopyMode property is Disable.");
2478
2479                         int start_row = int.MaxValue, end_row = int.MinValue;
2480                         int start_col = int.MaxValue, end_col = int.MinValue;
2481
2482                         bool include_row_headers = false;
2483                         bool include_col_headers = false;
2484                         bool only_included_headers = false;
2485                         bool headers_includable = false;
2486
2487                         switch (ClipboardCopyMode) {
2488                         case DataGridViewClipboardCopyMode.EnableWithoutHeaderText:
2489                                 break;
2490                         case DataGridViewClipboardCopyMode.EnableWithAutoHeaderText:
2491                                 // Headers are included if not selection mode is CellSelect, and any header is selected.
2492                                 headers_includable = selectionMode != DataGridViewSelectionMode.CellSelect;
2493                                 break;
2494                         case DataGridViewClipboardCopyMode.EnableAlwaysIncludeHeaderText:
2495                                 include_col_headers = include_row_headers = true;
2496                                 break;
2497                         }
2498
2499                         BitArray included_rows = new BitArray (RowCount);
2500                         BitArray included_cols = new BitArray (ColumnCount);
2501
2502                         // If there are any selected columns,
2503                         // include the column headers (if headers are to be shown).
2504                         if (headers_includable && !include_col_headers) {
2505                                 for (int c = 0; c < ColumnCount; c++) {
2506                                         if (Columns [c].Selected) {
2507                                                 include_col_headers = true;
2508                                                 break;
2509                                         }
2510                                 }
2511                         }
2512
2513                         // Find the smallest rectangle that encompasses all selected cells.
2514                         for (int r = 0; r < RowCount; r++) {
2515                                 DataGridViewRow row = Rows [r];
2516
2517                                 if (headers_includable && !include_row_headers && row.Selected) {
2518                                         include_row_headers = true;
2519                                 }
2520
2521                                 for (int c = 0; c < ColumnCount; c++) {
2522                                         DataGridViewCell cell = row.Cells [c];
2523
2524                                         if (cell == null || !cell.Selected)
2525                                                 continue;
2526
2527                                         included_cols [c] = true;
2528                                         included_rows [r] = true;
2529
2530                                         start_row = Math.Min (start_row, r);
2531                                         start_col = Math.Min (start_col, c);
2532                                         end_row = Math.Max (end_row, r);
2533                                         end_col = Math.Max (end_col, c);
2534                                 }
2535                         }
2536
2537                         // Mark rows/columns in between selected cells as included if the selection mode isn't FullHeaderSelect.
2538                         switch (selectionMode){
2539                         case DataGridViewSelectionMode.CellSelect:
2540                         case DataGridViewSelectionMode.ColumnHeaderSelect:
2541                         case DataGridViewSelectionMode.RowHeaderSelect:
2542                                 if (selectionMode != DataGridViewSelectionMode.ColumnHeaderSelect) {
2543                                         for (int r = start_row; r <= end_row; r++) {
2544                                                 included_rows.Set (r, true);
2545                                         }
2546                                 } else if (start_row <= end_row) {
2547                                         included_rows.SetAll (true);
2548                                 }
2549                                 if (selectionMode != DataGridViewSelectionMode.RowHeaderSelect) {
2550                                         for (int c = start_col; c <= end_col; c++) {
2551                                                 included_cols.Set (c, true);
2552                                         }
2553                                 }
2554                                 break;
2555                         case DataGridViewSelectionMode.FullColumnSelect:
2556                         case DataGridViewSelectionMode.FullRowSelect:
2557                                 only_included_headers = true;
2558                                 break;
2559                         }
2560
2561                         if (start_row > end_row)
2562                                 return null;
2563
2564                         if (start_col > end_col)
2565                                 return null;
2566
2567                         DataObject result = new DataObject ();
2568
2569                         System.Text.StringBuilder text_builder = new System.Text.StringBuilder ();
2570                         System.Text.StringBuilder utext_builder = new System.Text.StringBuilder ();
2571                         System.Text.StringBuilder html_builder = new System.Text.StringBuilder ();
2572                         System.Text.StringBuilder csv_builder = new System.Text.StringBuilder ();
2573
2574                         // Loop through all rows and columns to create the content.
2575                         // -1 is the header row/column.
2576                         int first_row = start_row;
2577                         int first_col = start_col;
2578                         if (include_col_headers) {
2579                                 first_row = -1;
2580                         }
2581                         for (int r = first_row; r <= end_row; r++) {
2582                                 DataGridViewRow row = null;
2583
2584                                 if (r >= 0) {
2585                                         if (!included_rows [r])
2586                                                 continue;
2587
2588                                         row = Rows [r];
2589                                 }
2590
2591                                 if (include_row_headers) {
2592                                         first_col = -1;
2593                                 }
2594
2595                                 for (int c = first_col; c <= end_col; c++) {
2596                                         DataGridViewCell cell = null;
2597
2598                                         if (c >= 0 && only_included_headers && !included_cols [c])
2599                                                 continue;
2600
2601                                         if (row == null) {
2602                                                 if (c == -1) {
2603                                                         cell = TopLeftHeaderCell;
2604                                                 } else {
2605                                                         cell = Columns [c].HeaderCell;
2606                                                 }
2607                                         } else {
2608                                                 if (c == -1) {
2609                                                         cell = row.HeaderCell;
2610                                                 } else {
2611                                                         cell = row.Cells [c];
2612                                                 }
2613                                         }
2614
2615                                         string text, utext, html, csv;
2616                                         bool is_first_cell = (c == first_col);
2617                                         bool is_last_cell = (c == end_col);
2618                                         bool is_first_row = (r == first_row);
2619                                         bool is_last_row = (r == end_row);
2620
2621                                         if (cell == null) {
2622                                                 text = string.Empty;
2623                                                 utext = string.Empty;
2624                                                 html = string.Empty;
2625                                                 csv = string.Empty;
2626                                         } else {
2627                                                 text = cell.GetClipboardContentInternal (r, is_first_cell, is_last_cell, is_first_row, is_last_row, DataFormats.Text) as string;
2628                                                 utext = cell.GetClipboardContentInternal (r, is_first_cell, is_last_cell, is_first_row, is_last_row, DataFormats.UnicodeText) as string;
2629                                                 html = cell.GetClipboardContentInternal (r, is_first_cell, is_last_cell, is_first_row, is_last_row, DataFormats.Html) as string;
2630                                                 csv = cell.GetClipboardContentInternal (r, is_first_cell, is_last_cell, is_first_row, is_last_row, DataFormats.CommaSeparatedValue) as string;
2631                                         }
2632
2633                                         text_builder.Append (text);
2634                                         utext_builder.Append (utext);
2635                                         html_builder.Append (html);
2636                                         csv_builder.Append (csv);
2637
2638                                         if (c == -1) { // If we just did the row header, jump to the first column.
2639                                                 c = start_col - 1;
2640                                         }
2641                                 }
2642
2643                                 if (r == -1) {// If we just did the column header, jump to the first row.
2644                                         r = start_row - 1;
2645                                 }
2646                         }
2647
2648                         //
2649                         // Html content always get the \r\n newline
2650                         // It's valid html anyway, and it eases testing quite a bit
2651                         // (since otherwise we'd have to change the start indices
2652                         // in the added prologue/epilogue text)
2653                         //
2654                         int fragment_end = 135 + html_builder.Length;
2655                         int html_end = fragment_end + 36;
2656                         string html_start =
2657                         "Version:1.0{0}" +
2658                         "StartHTML:00000097{0}" +
2659                         "EndHTML:{1:00000000}{0}" +
2660                         "StartFragment:00000133{0}" +
2661                         "EndFragment:{2:00000000}{0}" +
2662                         "<HTML>{0}" +
2663                         "<BODY>{0}" +
2664                         "<!--StartFragment-->";
2665
2666                         html_start = string.Format (html_start, "\r\n", html_end, fragment_end);
2667                         html_builder.Insert (0, html_start);
2668                         html_builder.AppendFormat ("{0}<!--EndFragment-->{0}</BODY>{0}</HTML>", "\r\n");
2669
2670                         result.SetData (DataFormats.CommaSeparatedValue, false, csv_builder.ToString ());
2671                         result.SetData (DataFormats.Html, false, html_builder.ToString ());
2672                         result.SetData (DataFormats.UnicodeText, false, utext_builder.ToString ());
2673                         result.SetData (DataFormats.Text, false, text_builder.ToString ());
2674
2675                         return result;
2676                 }
2677
2678                 [MonoTODO ("Does not use cutOverflow parameter")]
2679                 public Rectangle GetColumnDisplayRectangle (int columnIndex, bool cutOverflow)
2680                 {
2681                         if (columnIndex < 0 || columnIndex > Columns.Count - 1)
2682                                 throw new ArgumentOutOfRangeException ("columnIndex");
2683
2684                         int x = 0;
2685                         int w = 0;
2686
2687                         x = BorderWidth;
2688
2689                         if (RowHeadersVisible)
2690                                 x += RowHeadersWidth;
2691
2692                         List<DataGridViewColumn> cols = columns.ColumnDisplayIndexSortedArrayList;
2693
2694                         for (int i = first_col_index; i < cols.Count; i++) {
2695                                 if (!cols[i].Visible)
2696                                         continue;
2697
2698                                 if (cols[i].Index == columnIndex) {
2699                                         w = cols[i].Width;
2700                                         break;
2701                                 }
2702
2703                                 x += cols[i].Width;
2704                         }
2705
2706                         return new Rectangle (x, 0, w, Height);
2707                 }
2708
2709                 [MonoTODO ("Does not use cutOverflow parameter")]
2710                 public Rectangle GetRowDisplayRectangle (int rowIndex, bool cutOverflow)
2711                 {
2712                         if (rowIndex < 0 || rowIndex > Rows.Count - 1)
2713                                 throw new ArgumentOutOfRangeException ("rowIndex");
2714
2715                         int y = 0;
2716                         int h = 0;
2717
2718                         y = BorderWidth;
2719
2720                         if (ColumnHeadersVisible)
2721                                 y += ColumnHeadersHeight;
2722
2723                         for (int i = first_row_index; i < Rows.Count; i++) {
2724                                 if (i == rowIndex) {
2725                                         h = rows[i].Height;
2726                                         break;
2727                                 }
2728
2729                                 y += rows[i].Height;
2730                         }
2731
2732                         return new Rectangle (0, y, Width, h);
2733                 }
2734
2735                 public HitTestInfo HitTest (int x, int y) {
2736                         ///////////////////////////////////////////////////////
2737                         //Console.WriteLine ("HitTest ({0}, {1})", x, y);
2738                         bool isInColHeader = columnHeadersVisible && y >= 0 && y <= ColumnHeadersHeight;
2739                         bool isInRowHeader = rowHeadersVisible && x >= 0 && x <= RowHeadersWidth;
2740
2741                         // TopLeftHeader
2742                         if (isInColHeader && isInRowHeader)
2743                                 return new HitTestInfo (-1, x, -1, y, DataGridViewHitTestType.TopLeftHeader);
2744
2745                         // HorizontalScrollBar
2746                         if (horizontalScrollBar.Visible && horizontalScrollBar.Bounds.Contains (x, y))
2747                                 return new HitTestInfo (-1, x, -1, y, DataGridViewHitTestType.HorizontalScrollBar);
2748
2749                         // VerticalScrollBar
2750                         if (verticalScrollBar.Visible && verticalScrollBar.Bounds.Contains (x, y))
2751                                 return new HitTestInfo (-1, x, -1, y, DataGridViewHitTestType.VerticalScrollBar);
2752
2753                         // The little box in the bottom right if both scrollbars are shown is None
2754                         if (verticalScrollBar.Visible && horizontalScrollBar.Visible)
2755                                 if (new Rectangle (verticalScrollBar.Left, horizontalScrollBar.Top, verticalScrollBar.Width, horizontalScrollBar.Height).Contains (x, y))
2756                                         return new HitTestInfo (-1, x, -1, y, DataGridViewHitTestType.None);
2757
2758                         int rowindex = -1;
2759                         int colindex = -1;
2760
2761                         int top = columnHeadersVisible ? columnHeadersHeight : 0;
2762
2763                         for (int i = first_row_index; i < Rows.Count; i++) {
2764                                 DataGridViewRow row = Rows[i];
2765
2766                                 if (y > top && y <= (top + row.Height)) {
2767                                         rowindex = i;
2768                                         break;
2769                                 }
2770
2771                                 top += row.Height;
2772                         }
2773
2774                         int left = rowHeadersVisible ? RowHeadersWidth : 0;
2775
2776                         List<DataGridViewColumn> cols = columns.ColumnDisplayIndexSortedArrayList;
2777
2778                         for (int i = first_col_index; i < cols.Count; i++) {
2779                                 if (!cols[i].Visible)
2780                                         continue;
2781
2782                                 if (x > left && x <= (left + cols[i].Width)) {
2783                                         colindex = cols[i].Index;
2784                                         break;
2785                                 }
2786
2787                                 left += cols[i].Width;
2788                         }
2789
2790                         if (colindex >= 0 && rowindex >= 0)
2791                                 return new HitTestInfo (colindex, x, rowindex, y, DataGridViewHitTestType.Cell);
2792
2793                         if (isInColHeader && colindex > -1)
2794                                 return new HitTestInfo (colindex, x, rowindex, y, DataGridViewHitTestType.ColumnHeader);
2795
2796                         if (isInRowHeader && rowindex > -1)
2797                                 return new HitTestInfo (colindex, x, rowindex, y, DataGridViewHitTestType.RowHeader);
2798
2799                         return new HitTestInfo (-1, x, -1, y, DataGridViewHitTestType.None);
2800                 }
2801
2802                 [MonoTODO ("Invalidates whole grid")]
2803                 public void InvalidateCell (DataGridViewCell dataGridViewCell)
2804                 {
2805                         if (dataGridViewCell == null)
2806                                 throw new ArgumentNullException ("Cell is null");
2807
2808                         if (dataGridViewCell.DataGridView != this)
2809                                 throw new ArgumentException ("The specified cell does not belong to this DataGridView.");
2810
2811                         InvalidateCell (dataGridViewCell.ColumnIndex, dataGridViewCell.RowIndex);
2812                 }
2813
2814                 [MonoTODO ("Invalidates whole grid")]
2815                 public void InvalidateCell (int columnIndex, int rowIndex)
2816                 {
2817                         if (columnIndex < 0 || columnIndex >= columns.Count)
2818                                 throw new ArgumentOutOfRangeException ("Column index is out of range.");
2819
2820                         if (rowIndex < 0 || rowIndex >= rows.Count)
2821                                 throw new ArgumentOutOfRangeException ("Row index is out of range.");
2822
2823                         Invalidate (GetCellDisplayRectangle (columnIndex, rowIndex, true));
2824                 }
2825
2826                 [MonoTODO ("Invalidates whole grid")]
2827                 public void InvalidateColumn (int columnIndex)
2828                 {
2829                         if (columnIndex < 0 || columnIndex >= columns.Count)
2830                                 throw new ArgumentOutOfRangeException ("Column index is out of range.");
2831
2832                         Invalidate (GetColumnDisplayRectangle (columnIndex, true));
2833                 }
2834
2835                 [MonoTODO ("Invalidates whole grid")]
2836                 public void InvalidateRow (int rowIndex)
2837                 {
2838                         if (rowIndex < 0 || rowIndex >= rows.Count)
2839                                 throw new ArgumentOutOfRangeException ("Row index is out of range.");
2840
2841                         Invalidate (GetRowDisplayRectangle (rowIndex, true));
2842                 }
2843
2844                 public virtual void NotifyCurrentCellDirty (bool dirty) {
2845                         throw new NotImplementedException();
2846                 }
2847
2848                 public bool RefreshEdit ()
2849                 {
2850                         if (IsCurrentCellInEditMode) {
2851                                 currentCell.InitializeEditingControl (currentCell.RowIndex, currentCell.FormattedValue, currentCell.InheritedStyle);
2852                                 return true;
2853                         }
2854
2855                         return false;
2856                 }
2857
2858                 [EditorBrowsable (EditorBrowsableState.Never)]
2859                 public override void ResetText ()
2860                 {
2861                         Text = string.Empty;
2862                 }
2863
2864                 public void SelectAll () {
2865                         switch (selectionMode) {
2866                                 case DataGridViewSelectionMode.FullRowSelect:
2867                                         foreach (DataGridViewRow row in rows) {
2868                                                 (row as DataGridViewBand).Selected = true;
2869                                         }
2870                                         break;
2871                                 case DataGridViewSelectionMode.FullColumnSelect:
2872                                         foreach (DataGridViewColumn col in columns) {
2873                                                 (col as DataGridViewBand).Selected = true;
2874                                         }
2875                                         break;
2876                                 default:
2877                                         foreach (DataGridViewRow row in rows) {
2878                                                 foreach (DataGridViewCell cell in row.Cells) {
2879                                                         cell.Selected = true;
2880                                                 }
2881                                         }
2882                                         break;
2883                         }
2884
2885                         Invalidate ();
2886                 }
2887
2888                 public virtual void Sort (IComparer comparer)
2889                 {
2890                         if (comparer == null)
2891                                 throw new ArgumentNullException ("comparer");
2892                         if (VirtualMode || DataSource != null)
2893                                 throw new InvalidOperationException ();
2894
2895                         if (SortedColumn != null)
2896                                 SortedColumn.HeaderCell.SortGlyphDirection = SortOrder.None;
2897
2898                         EndEdit ();
2899
2900                         Rows.Sort (comparer);
2901
2902                         sortedColumn = null;
2903                         sortOrder = SortOrder.None;
2904
2905                         currentCell = null;
2906
2907                         Invalidate ();
2908
2909                         OnSorted (EventArgs.Empty);
2910                 }
2911
2912                 public virtual void Sort (DataGridViewColumn dataGridViewColumn, ListSortDirection direction)
2913                 {
2914                         if (dataGridViewColumn == null)
2915                                 throw new ArgumentNullException ("dataGridViewColumn");
2916                         if (dataGridViewColumn.DataGridView != this)
2917                                 throw new ArgumentException ("dataGridViewColumn");
2918                         // XXX: This is thrown too much, disable for now..
2919                         //if (DataSource != null && !dataGridViewColumn.IsDataBound)
2920                         //        throw new ArgumentException ("dataGridViewColumn");
2921                         //if (VirtualMode && !dataGridViewColumn.IsDataBound)
2922                         //        throw new InvalidOperationException ();
2923
2924                         if (SortedColumn != null)
2925                                 SortedColumn.HeaderCell.SortGlyphDirection = SortOrder.None;
2926
2927                         EndEdit ();
2928
2929                         // Figure out if this is a numeric sort or text sort
2930                         bool is_numeric = true;
2931                         double n;
2932
2933                         foreach (DataGridViewRow row in Rows) {
2934                                 object val = row.Cells[dataGridViewColumn.Index].Value;
2935
2936                                 if (val != null && !double.TryParse (val.ToString (), out n)) {
2937                                         is_numeric = false;
2938                                         break;
2939                                 }
2940                         }
2941
2942                         ColumnSorter sorter = new ColumnSorter (dataGridViewColumn, direction, is_numeric);
2943                         Rows.Sort (sorter);
2944
2945                         sortedColumn = dataGridViewColumn;
2946                         sortOrder = (SortOrder)direction + 1;
2947
2948                         dataGridViewColumn.HeaderCell.SortGlyphDirection = (SortOrder)direction + 1;
2949
2950                         Invalidate ();
2951
2952                         OnSorted (EventArgs.Empty);
2953                 }
2954
2955                 public void UpdateCellErrorText (int columnIndex, int rowIndex)
2956                 {
2957                         if (columnIndex < 0 || columnIndex > Columns.Count - 1)
2958                                 throw new ArgumentOutOfRangeException ("columnIndex");
2959                         if (rowIndex < 0 || rowIndex > Rows.Count - 1)
2960                                 throw new ArgumentOutOfRangeException ("rowIndex");
2961
2962                         InvalidateCell (columnIndex, rowIndex);
2963                 }
2964
2965                 public void UpdateCellValue (int columnIndex, int rowIndex)
2966                 {
2967                         if (columnIndex < 0 || columnIndex > Columns.Count - 1)
2968                                 throw new ArgumentOutOfRangeException ("columnIndex");
2969                         if (rowIndex < 0 || rowIndex > Rows.Count - 1)
2970                                 throw new ArgumentOutOfRangeException ("rowIndex");
2971
2972                         InvalidateCell (columnIndex, rowIndex);
2973                 }
2974
2975                 public void UpdateRowErrorText (int rowIndex)
2976                 {
2977                         if (rowIndex < 0 || rowIndex > Rows.Count - 1)
2978                                 throw new ArgumentOutOfRangeException ("rowIndex");
2979
2980                         InvalidateRow (rowIndex);
2981                 }
2982
2983                 public void UpdateRowErrorText (int rowIndexStart, int rowIndexEnd)
2984                 {
2985                         if (rowIndexStart < 0 || rowIndexStart > Rows.Count - 1)
2986                                 throw new ArgumentOutOfRangeException ("rowIndexStart");
2987                         if (rowIndexEnd < 0 || rowIndexEnd > Rows.Count - 1)
2988                                 throw new ArgumentOutOfRangeException ("rowIndexEnd");
2989                         if (rowIndexEnd < rowIndexStart)
2990                                 throw new ArgumentOutOfRangeException ("rowIndexEnd", "rowIndexEnd must be greater than rowIndexStart");
2991
2992                         for (int i = rowIndexStart; i <= rowIndexEnd; i++)
2993                                 InvalidateRow (i);
2994                 }
2995
2996                 public void UpdateRowHeightInfo (int rowIndex, bool updateToEnd) {
2997                         throw new NotImplementedException();
2998                 }
2999
3000                 protected override bool CanEnableIme {
3001                         get {
3002                                 if (CurrentCell != null && CurrentCell.EditType != null)
3003                                         return true;
3004
3005                                 return false;
3006                         }
3007                 }
3008
3009                 protected override Size DefaultSize {
3010                         get { return new Size (240, 150); }
3011                 }
3012
3013                 protected ScrollBar HorizontalScrollBar {
3014                         get { return horizontalScrollBar; }
3015                 }
3016
3017                 protected ScrollBar VerticalScrollBar {
3018                         get { return verticalScrollBar; }
3019                 }
3020
3021                 protected virtual void AccessibilityNotifyCurrentCellChanged (Point cellAddress)
3022                 {
3023                         throw new NotImplementedException ();
3024                 }
3025
3026                 [MonoTODO ("Does not use fixedHeight parameter")]
3027                 protected void AutoResizeColumn (int columnIndex, DataGridViewAutoSizeColumnMode autoSizeColumnMode, bool fixedHeight)
3028                 {
3029                         AutoResizeColumn (columnIndex, autoSizeColumnMode);
3030                 }
3031
3032                 [MonoTODO ("Does not use fixedRowHeadersWidth or fixedColumnsWidth parameters")]
3033                 protected void AutoResizeColumnHeadersHeight (bool fixedRowHeadersWidth, bool fixedColumnsWidth)
3034                 {
3035                         AutoResizeColumnHeadersHeight ();
3036                 }
3037
3038                 [MonoTODO ("Does not use columnIndex or fixedRowHeadersWidth or fixedColumnsWidth parameters")]
3039                 protected void AutoResizeColumnHeadersHeight (int columnIndex, bool fixedRowHeadersWidth, bool fixedColumnWidth)
3040                 {
3041                         AutoResizeColumnHeadersHeight (columnIndex);
3042                 }
3043
3044                 protected void AutoResizeColumns (DataGridViewAutoSizeColumnsMode autoSizeColumnsMode, bool fixedHeight) {
3045                         for (int i = 0; i < Columns.Count; i++) {
3046                                 AutoResizeColumn (i, (DataGridViewAutoSizeColumnMode) autoSizeColumnsMode, fixedHeight);
3047                         }
3048                 }
3049
3050                 [MonoTODO ("Does not use fixedWidth parameter")]
3051                 protected void AutoResizeRow (int rowIndex, DataGridViewAutoSizeRowMode autoSizeRowMode, bool fixedWidth)
3052                 {
3053                         if (autoSizeRowMode == DataGridViewAutoSizeRowMode.RowHeader && !rowHeadersVisible)
3054                                 throw new InvalidOperationException ("row headers are not visible");
3055                         if (rowIndex < 0 || rowIndex > Rows.Count - 1)
3056                                 throw new ArgumentOutOfRangeException ("rowIndex");
3057
3058                         DataGridViewRow row = GetRowInternal (rowIndex);
3059
3060                         int new_height = row.GetPreferredHeight (rowIndex, autoSizeRowMode, true);
3061
3062                         if (row.Height != new_height)
3063                                 row.SetAutoSizeHeight (new_height);
3064                 }
3065
3066                 [MonoTODO ("Does not use fixedColumnHeadersHeight or fixedRowsHeight parameter")]
3067                 protected void AutoResizeRowHeadersWidth (DataGridViewRowHeadersWidthSizeMode rowHeadersWidthSizeMode, bool fixedColumnHeadersHeight, bool fixedRowsHeight)
3068                 {
3069                         AutoResizeRowHeadersWidth (rowHeadersWidthSizeMode);
3070                 }
3071
3072                 [MonoTODO ("Does not use rowIndex or fixedColumnHeadersHeight or fixedRowsHeight parameter")]
3073                 protected void AutoResizeRowHeadersWidth (int rowIndex, DataGridViewRowHeadersWidthSizeMode rowHeadersWidthSizeMode, bool fixedColumnHeadersHeight, bool fixedRowHeight)
3074                 {
3075                         AutoResizeRowHeadersWidth (rowHeadersWidthSizeMode);
3076                 }
3077
3078                 [MonoTODO ("Does not use fixedWidth parameter")]
3079                 protected void AutoResizeRows (DataGridViewAutoSizeRowsMode autoSizeRowsMode, bool fixedWidth)
3080                 {
3081                         if (autoSizeRowsMode == DataGridViewAutoSizeRowsMode.None)
3082                                 return;
3083
3084                         bool displayed_only = false;
3085                         DataGridViewAutoSizeRowMode mode = DataGridViewAutoSizeRowMode.AllCells;
3086
3087                         switch (autoSizeRowsMode) {
3088                                 case DataGridViewAutoSizeRowsMode.AllHeaders:
3089                                         mode = DataGridViewAutoSizeRowMode.RowHeader;
3090                                         break;
3091                                 case DataGridViewAutoSizeRowsMode.AllCellsExceptHeaders:
3092                                         mode = DataGridViewAutoSizeRowMode.AllCellsExceptHeader;
3093                                         break;
3094                                 case DataGridViewAutoSizeRowsMode.AllCells:
3095                                         mode = DataGridViewAutoSizeRowMode.AllCells;
3096                                         break;
3097                                 case DataGridViewAutoSizeRowsMode.DisplayedHeaders:
3098                                         mode = DataGridViewAutoSizeRowMode.RowHeader;
3099                                         displayed_only = true;
3100                                         break;
3101                                 case DataGridViewAutoSizeRowsMode.DisplayedCellsExceptHeaders:
3102                                         mode = DataGridViewAutoSizeRowMode.AllCellsExceptHeader;
3103                                         displayed_only = true;
3104                                         break;
3105                                 case DataGridViewAutoSizeRowsMode.DisplayedCells:
3106                                         mode = DataGridViewAutoSizeRowMode.AllCells;
3107                                         displayed_only = true;
3108                                         break;
3109                         }
3110
3111                         foreach (DataGridViewRow row in Rows) {
3112                                 if (!displayed_only || row.Displayed) {
3113                                         int new_height = row.GetPreferredHeight (row.Index, mode, fixedWidth);
3114
3115                                         if (row.Height != new_height)
3116                                                 row.SetAutoSizeHeight (new_height);
3117                                 }
3118                         }
3119                 }
3120
3121                 [MonoTODO ("Does not use fixedMode parameter")]
3122                 protected void AutoResizeRows (int rowIndexStart, int rowsCount, DataGridViewAutoSizeRowMode autoSizeRowMode, bool fixedWidth)
3123                 {
3124                         for (int i = rowIndexStart; i < rowIndexStart + rowsCount; i++)
3125                                 AutoResizeRow (i, autoSizeRowMode, fixedWidth);
3126                 }
3127
3128                 protected void ClearSelection (int columnIndexException, int rowIndexException, bool selectExceptionElement) {
3129                         if (columnIndexException >= columns.Count) {
3130                                 throw new ArgumentOutOfRangeException("ColumnIndexException is greater than the highest column index.");
3131                         }
3132                         if (selectionMode == DataGridViewSelectionMode.FullRowSelect) {
3133                                 if (columnIndexException < -1) {
3134                                         throw new ArgumentOutOfRangeException("ColumnIndexException is less than -1.");
3135                                 }
3136                         }
3137                         else {
3138                                 if (columnIndexException < 0) {
3139                                         throw new ArgumentOutOfRangeException("ColumnIndexException is less than 0.");
3140                                 }
3141                         }
3142                         if (rowIndexException >= rows.Count) {
3143                                 throw new ArgumentOutOfRangeException("RowIndexException is greater than the highest row index.");
3144                         }
3145                         if (selectionMode == DataGridViewSelectionMode.FullColumnSelect) {
3146                                 if (rowIndexException < -1) {
3147                                         throw new ArgumentOutOfRangeException("RowIndexException is less than -1.");
3148                                 }
3149                         }
3150                         else {
3151                                 if (rowIndexException < 0) {
3152                                         throw new ArgumentOutOfRangeException("RowIndexException is less than 0.");
3153                                 }
3154                         }
3155                         switch (selectionMode) {
3156                                 case DataGridViewSelectionMode.FullRowSelect:
3157                                         foreach (DataGridViewRow row in rows) {
3158                                                 if (selectExceptionElement && row.Index == rowIndexException) {
3159                                                         continue;
3160                                                 }
3161                                                 SetSelectedRowCore (row.Index, false);
3162                                         }
3163                                         break;
3164                                 case DataGridViewSelectionMode.FullColumnSelect:
3165                                         foreach (DataGridViewColumn col in columns) {
3166                                                 if (selectExceptionElement && col.Index == columnIndexException) {
3167                                                         continue;
3168                                                 }
3169                                                 SetSelectedColumnCore (col.Index, false);
3170                                         }
3171                                         break;
3172                                 default:
3173                                         foreach (DataGridViewCell cell in SelectedCells) {
3174                                                 if (selectExceptionElement && cell.RowIndex == rowIndexException && cell.ColumnIndex == columnIndexException) {
3175                                                         continue;
3176                                                 }
3177                                                 SetSelectedCellCore (cell.ColumnIndex, cell.RowIndex, false);
3178                                         }
3179                                         break;
3180                         }
3181                 }
3182
3183                 protected override AccessibleObject CreateAccessibilityInstance ()
3184                 {
3185                         return new DataGridViewAccessibleObject(this);
3186                 }
3187
3188                 [EditorBrowsable (EditorBrowsableState.Advanced)]
3189                 protected virtual DataGridViewColumnCollection CreateColumnsInstance ()
3190                 {
3191                         return new DataGridViewColumnCollection(this);
3192                 }
3193
3194                 protected override Control.ControlCollection CreateControlsInstance ()
3195                 {
3196                         return new DataGridViewControlCollection (this);
3197                 }
3198
3199                 [EditorBrowsable (EditorBrowsableState.Advanced)]
3200                 protected virtual DataGridViewRowCollection CreateRowsInstance ()
3201                 {
3202                         return new DataGridViewRowCollection(this);
3203                 }
3204
3205                 protected override void Dispose (bool disposing) {
3206                 }
3207
3208                 protected override AccessibleObject GetAccessibilityObjectById (int objectId)
3209                 {
3210                         throw new NotImplementedException();
3211                 }
3212
3213                 protected override bool IsInputChar (char charCode)
3214                 {
3215                         return true;
3216                 }
3217
3218                 protected override bool IsInputKey (Keys keyData)
3219                 {
3220                         // Don't look at the modifiers
3221                         keyData = keyData & ~Keys.Modifiers;
3222
3223                         switch (keyData) {
3224                                 case Keys.Return:
3225                                 case Keys.PageUp:
3226                                 case Keys.Next:
3227                                 case Keys.End:
3228                                 case Keys.Home:
3229                                 case Keys.Left:
3230                                 case Keys.Up:
3231                                 case Keys.Right:
3232                                 case Keys.Down:
3233                                 case Keys.Delete:
3234                                 case Keys.D0:
3235                                 case Keys.NumPad0:
3236                                 case Keys.F2:
3237                                         return true;
3238                         }
3239
3240                         return false;
3241                 }
3242
3243                 protected virtual void OnAllowUserToAddRowsChanged (EventArgs e)
3244                 {
3245                         EventHandler eh = (EventHandler)(Events [AllowUserToAddRowsChangedEvent]);
3246                         if (eh != null)
3247                                 eh (this, e);
3248                 }
3249
3250                 protected virtual void OnAllowUserToDeleteRowsChanged (EventArgs e)
3251                 {
3252                         EventHandler eh = (EventHandler)(Events [AllowUserToDeleteRowsChangedEvent]);
3253                         if (eh != null)
3254                                 eh (this, e);
3255                 }
3256
3257                 protected virtual void OnAllowUserToOrderColumnsChanged (EventArgs e)
3258                 {
3259                         EventHandler eh = (EventHandler)(Events [AllowUserToOrderColumnsChangedEvent]);
3260                         if (eh != null)
3261                                 eh (this, e);
3262                 }
3263
3264                 protected virtual void OnAllowUserToResizeColumnsChanged (EventArgs e)
3265                 {
3266                         EventHandler eh = (EventHandler)(Events [AllowUserToResizeColumnsChangedEvent]);
3267                         if (eh != null)
3268                                 eh (this, e);
3269                 }
3270
3271                 protected virtual void OnAllowUserToResizeRowsChanged (EventArgs e)
3272                 {
3273                         EventHandler eh = (EventHandler)(Events [AllowUserToResizeRowsChangedEvent]);
3274                         if (eh != null)
3275                                 eh (this, e);
3276                 }
3277
3278                 protected virtual void OnAlternatingRowsDefaultCellStyleChanged (EventArgs e)
3279                 {
3280                         EventHandler eh = (EventHandler)(Events [AlternatingRowsDefaultCellStyleChangedEvent]);
3281                         if (eh != null)
3282                                 eh (this, e);
3283                 }
3284
3285                 protected virtual void OnAutoGenerateColumnsChanged (EventArgs e)
3286                 {
3287                         EventHandler eh = (EventHandler)(Events [AutoGenerateColumnsChangedEvent]);
3288                         if (eh != null)
3289                                 eh (this, e);
3290                 }
3291
3292                 protected internal virtual void OnAutoSizeColumnModeChanged (DataGridViewAutoSizeColumnModeEventArgs e)
3293                 {
3294                         DataGridViewAutoSizeColumnModeEventHandler eh = (DataGridViewAutoSizeColumnModeEventHandler)(Events [AutoSizeColumnModeChangedEvent]);
3295                         if (eh != null)
3296                                 eh (this, e);
3297                 }
3298
3299                 protected virtual void OnAutoSizeColumnsModeChanged (DataGridViewAutoSizeColumnsModeEventArgs e)
3300                 {
3301                         DataGridViewAutoSizeColumnsModeEventHandler eh = (DataGridViewAutoSizeColumnsModeEventHandler)(Events [AutoSizeColumnsModeChangedEvent]);
3302                         if (eh != null)
3303                                 eh (this, e);
3304                 }
3305
3306                 protected virtual void OnAutoSizeRowsModeChanged (DataGridViewAutoSizeModeEventArgs e)
3307                 {
3308                         DataGridViewAutoSizeModeEventHandler eh = (DataGridViewAutoSizeModeEventHandler)(Events [AutoSizeRowsModeChangedEvent]);
3309                         if (eh != null)
3310                                 eh (this, e);
3311                 }
3312
3313                 protected virtual void OnBackgroundColorChanged (EventArgs e)
3314                 {
3315                         EventHandler eh = (EventHandler)(Events [BackgroundColorChangedEvent]);
3316                         if (eh != null)
3317                                 eh (this, e);
3318                 }
3319
3320                 protected override void OnBindingContextChanged (EventArgs e)
3321                 {
3322                         base.OnBindingContextChanged(e);
3323                 }
3324
3325                 protected virtual void OnBorderStyleChanged (EventArgs e)
3326                 {
3327                         EventHandler eh = (EventHandler)(Events [BorderStyleChangedEvent]);
3328                         if (eh != null)
3329                                 eh (this, e);
3330                 }
3331
3332                 protected virtual void OnCancelRowEdit (QuestionEventArgs e) {
3333                         QuestionEventHandler eh = (QuestionEventHandler)(Events [CancelRowEditEvent]);
3334                         if (eh != null)
3335                                 eh (this, e);
3336                 }
3337
3338                 protected virtual void OnCellBeginEdit (DataGridViewCellCancelEventArgs e)
3339                 {
3340                         DataGridViewCellCancelEventHandler eh = (DataGridViewCellCancelEventHandler)(Events [CellBeginEditEvent]);
3341                         if (eh != null)
3342                                 eh (this, e);
3343                 }
3344
3345                 protected virtual void OnCellBorderStyleChanged (EventArgs e)
3346                 {
3347                         EventHandler eh = (EventHandler)(Events [CellBorderStyleChangedEvent]);
3348                         if (eh != null)
3349                                 eh (this, e);
3350                 }
3351
3352                 protected virtual void OnCellClick (DataGridViewCellEventArgs e)
3353                 {
3354                         DataGridViewCell cell = GetCellInternal (e.ColumnIndex, e.RowIndex);
3355
3356                         cell.OnClickInternal (e);
3357
3358                         DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [CellClickEvent]);
3359                         if (eh != null)
3360                                 eh (this, e);
3361                 }
3362
3363                 protected virtual void OnCellContentClick (DataGridViewCellEventArgs e)
3364                 {
3365                         DataGridViewCell cell = GetCellInternal (e.ColumnIndex, e.RowIndex);
3366
3367                         cell.OnContentClickInternal (e);
3368
3369                         DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [CellContentClickEvent]);
3370                         if (eh != null)
3371                                 eh (this, e);
3372                 }
3373
3374                 protected virtual void OnCellContentDoubleClick (DataGridViewCellEventArgs e)
3375                 {
3376                         DataGridViewCell cell = GetCellInternal (e.ColumnIndex, e.RowIndex);
3377
3378                         cell.OnContentDoubleClickInternal (e);
3379
3380                         DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [CellContentDoubleClickEvent]);
3381                         if (eh != null)
3382                                 eh (this, e);
3383                 }
3384
3385                 protected virtual void OnCellContextMenuStripChanged (DataGridViewCellEventArgs e)
3386                 {
3387                         DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [CellContextMenuStripChangedEvent]);
3388                         if (eh != null)
3389                                 eh (this, e);
3390                 }
3391
3392                 protected virtual void OnCellContextMenuStripNeeded (DataGridViewCellContextMenuStripNeededEventArgs e)
3393                 {
3394                         DataGridViewCellContextMenuStripNeededEventHandler eh = (DataGridViewCellContextMenuStripNeededEventHandler)(Events [CellContextMenuStripNeededEvent]);
3395                         if (eh != null)
3396                                 eh (this, e);
3397                 }
3398
3399                 protected virtual void OnCellDoubleClick (DataGridViewCellEventArgs e)
3400                 {
3401                         DataGridViewCell cell = GetCellInternal (e.ColumnIndex, e.RowIndex);
3402
3403                         cell.OnDoubleClickInternal (e);
3404                         DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [CellDoubleClickEvent]);
3405                         if (eh != null)
3406                                 eh (this, e);
3407                 }
3408
3409                 protected virtual void OnCellEndEdit (DataGridViewCellEventArgs e)
3410                 {
3411                         DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [CellEndEditEvent]);
3412                         if (eh != null)
3413                                 eh (this, e);
3414                 }
3415
3416                 protected virtual void OnCellEnter (DataGridViewCellEventArgs e)
3417                 {
3418                         DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [CellEnterEvent]);
3419                         if (eh != null)
3420                                 eh (this, e);
3421                 }
3422
3423                 protected internal virtual void OnCellErrorTextChanged (DataGridViewCellEventArgs e)
3424                 {
3425                         DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [CellErrorTextChangedEvent]);
3426                         if (eh != null)
3427                                 eh (this, e);
3428                 }
3429
3430                 protected virtual void OnCellErrorTextNeeded (DataGridViewCellErrorTextNeededEventArgs e)
3431                 {
3432                         DataGridViewCellErrorTextNeededEventHandler eh = (DataGridViewCellErrorTextNeededEventHandler)(Events [CellErrorTextNeededEvent]);
3433                         if (eh != null)
3434                                 eh (this, e);
3435                 }
3436
3437                 internal void OnCellFormattingInternal (DataGridViewCellFormattingEventArgs e)
3438                 {
3439                         OnCellFormatting (e);
3440                 }
3441
3442                 protected virtual void OnCellFormatting (DataGridViewCellFormattingEventArgs e)
3443                 {
3444                         DataGridViewCellFormattingEventHandler eh = (DataGridViewCellFormattingEventHandler)(Events [CellFormattingEvent]);
3445                         if (eh != null)
3446                                 eh (this, e);
3447                 }
3448
3449                 protected virtual void OnCellLeave (DataGridViewCellEventArgs e)
3450                 {
3451                         DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [CellLeaveEvent]);
3452                         if (eh != null)
3453                                 eh (this, e);
3454                 }
3455
3456                 protected virtual void OnCellMouseClick (DataGridViewCellMouseEventArgs e)
3457                 {
3458                         DataGridViewCell cell = GetCellInternal (e.ColumnIndex, e.RowIndex);
3459
3460                         cell.OnMouseClickInternal (e);
3461
3462                         DataGridViewCellMouseEventHandler eh = (DataGridViewCellMouseEventHandler)(Events [CellMouseClickEvent]);
3463                         if (eh != null)
3464                                 eh (this, e);
3465                 }
3466
3467                 protected virtual void OnCellMouseDoubleClick (DataGridViewCellMouseEventArgs e)
3468                 {
3469                         DataGridViewCell cell = GetCellInternal (e.ColumnIndex, e.RowIndex);
3470
3471                         cell.OnMouseDoubleClickInternal (e);
3472
3473                         DataGridViewCellMouseEventHandler eh = (DataGridViewCellMouseEventHandler)(Events [CellMouseDoubleClickEvent]);
3474                         if (eh != null)
3475                                 eh (this, e);
3476                 }
3477
3478                 protected virtual void OnCellMouseDown (DataGridViewCellMouseEventArgs e)
3479                 {
3480
3481                         DataGridViewCell cell = GetCellInternal (e.ColumnIndex, e.RowIndex);
3482
3483                         cell.OnMouseDownInternal (e);
3484
3485                         DataGridViewCellMouseEventHandler eh = (DataGridViewCellMouseEventHandler)(Events [CellMouseDownEvent]);
3486                         if (eh != null)
3487                                 eh (this, e);
3488                 }
3489
3490                 protected virtual void OnCellMouseEnter (DataGridViewCellEventArgs e)
3491                 {
3492                         DataGridViewCell cell = GetCellInternal (e.ColumnIndex, e.RowIndex);
3493
3494                         cell.OnMouseEnterInternal (e.RowIndex);
3495
3496                         DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [CellMouseEnterEvent]);
3497                         if (eh != null)
3498                                 eh (this, e);
3499                 }
3500
3501                 protected virtual void OnCellMouseLeave (DataGridViewCellEventArgs e)
3502                 {
3503                         DataGridViewCell cell = GetCellInternal (e.ColumnIndex, e.RowIndex);
3504
3505                         cell.OnMouseLeaveInternal (e.RowIndex);
3506
3507                         DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [CellMouseLeaveEvent]);
3508                         if (eh != null)
3509                                 eh (this, e);
3510                 }
3511
3512                 protected virtual void OnCellMouseMove (DataGridViewCellMouseEventArgs e)
3513                 {
3514                         DataGridViewCell cell = GetCellInternal (e.ColumnIndex, e.RowIndex);
3515
3516                         cell.OnMouseMoveInternal (e);
3517
3518                         DataGridViewCellMouseEventHandler eh = (DataGridViewCellMouseEventHandler)(Events [CellMouseMoveEvent]);
3519                         if (eh != null)
3520                                 eh (this, e);
3521                 }
3522
3523                 protected virtual void OnCellMouseUp (DataGridViewCellMouseEventArgs e)
3524                 {
3525                         DataGridViewCell cell = GetCellInternal (e.ColumnIndex, e.RowIndex);
3526
3527                         cell.OnMouseUpInternal (e);
3528
3529                         DataGridViewCellMouseEventHandler eh = (DataGridViewCellMouseEventHandler)(Events [CellMouseUpEvent]);
3530                         if (eh != null)
3531                                 eh (this, e);
3532                 }
3533
3534                 internal void OnCellPaintingInternal (DataGridViewCellPaintingEventArgs e)
3535                 {
3536                         OnCellPainting (e);
3537                 }
3538
3539                 protected virtual void OnCellPainting (DataGridViewCellPaintingEventArgs e)
3540                 {
3541                         DataGridViewCellPaintingEventHandler eh = (DataGridViewCellPaintingEventHandler)(Events [CellPaintingEvent]);
3542                         if (eh != null)
3543                                 eh (this, e);
3544                 }
3545
3546                 protected internal virtual void OnCellParsing (DataGridViewCellParsingEventArgs e)
3547                 {
3548                         DataGridViewCellParsingEventHandler eh = (DataGridViewCellParsingEventHandler)(Events [CellParsingEvent]);
3549                         if (eh != null)
3550                                 eh (this, e);
3551                 }
3552
3553                 internal void OnCellStateChangedInternal (DataGridViewCellStateChangedEventArgs e) {
3554                         this.OnCellStateChanged (e);
3555                 }
3556
3557                 protected virtual void OnCellStateChanged (DataGridViewCellStateChangedEventArgs e)
3558                 {
3559                         DataGridViewCellStateChangedEventHandler eh = (DataGridViewCellStateChangedEventHandler)(Events [CellStateChangedEvent]);
3560                         if (eh != null)
3561                                 eh (this, e);
3562                 }
3563
3564                 protected virtual void OnCellStyleChanged (DataGridViewCellEventArgs e)
3565                 {
3566                         DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [CellStyleChangedEvent]);
3567                         if (eh != null)
3568                                 eh (this, e);
3569                 }
3570
3571                 protected virtual void OnCellStyleContentChanged (DataGridViewCellStyleContentChangedEventArgs e) {
3572                         DataGridViewCellStyleContentChangedEventHandler eh = (DataGridViewCellStyleContentChangedEventHandler)(Events [CellStyleContentChangedEvent]);
3573                         if (eh != null)
3574                                 eh (this, e);
3575                 }
3576
3577                 protected virtual void OnCellToolTipTextChanged (DataGridViewCellEventArgs e) {
3578                         DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [CellToolTipTextChangedEvent]);
3579                         if (eh != null)
3580                                 eh (this, e);
3581                 }
3582
3583                 protected virtual void OnCellToolTipTextNeeded (DataGridViewCellToolTipTextNeededEventArgs e)
3584                 {
3585                         DataGridViewCellToolTipTextNeededEventHandler eh = (DataGridViewCellToolTipTextNeededEventHandler)(Events [CellToolTipTextNeededEvent]);
3586                         if (eh != null)
3587                                 eh (this, e);
3588                 }
3589
3590                 protected virtual void OnCellValidated (DataGridViewCellEventArgs e)
3591                 {
3592                         DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [CellValidatedEvent]);
3593                         if (eh != null)
3594                                 eh (this, e);
3595                 }
3596
3597                 protected virtual void OnCellValidating (DataGridViewCellValidatingEventArgs e)
3598                 {
3599                         DataGridViewCellValidatingEventHandler eh = (DataGridViewCellValidatingEventHandler)(Events [CellValidatingEvent]);
3600                         if (eh != null)
3601                                 eh (this, e);
3602                 }
3603
3604                 protected virtual void OnCellValueChanged (DataGridViewCellEventArgs e)
3605                 {
3606                         DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [CellValueChangedEvent]);
3607                         if (eh != null)
3608                                 eh (this, e);
3609                 }
3610
3611                 protected internal virtual void OnCellValueNeeded (DataGridViewCellValueEventArgs e)
3612                 {
3613                         DataGridViewCellValueEventHandler eh = (DataGridViewCellValueEventHandler)(Events [CellValueNeededEvent]);
3614                         if (eh != null)
3615                                 eh (this, e);
3616                 }
3617
3618                 protected virtual void OnCellValuePushed (DataGridViewCellValueEventArgs e)
3619                 {
3620                         DataGridViewCellValueEventHandler eh = (DataGridViewCellValueEventHandler)(Events [CellValuePushedEvent]);
3621                         if (eh != null)
3622                                 eh (this, e);
3623                 }
3624
3625                 internal void OnColumnAddedInternal (DataGridViewColumnEventArgs e)
3626                 {
3627                         if (e.Column.CellTemplate != null) {
3628                                 foreach (DataGridViewRow row in Rows)
3629                                         row.Cells.Add ((DataGridViewCell)e.Column.CellTemplate.Clone ());
3630                         }
3631
3632                         AutoResizeColumnsInternal ();
3633                         OnColumnAdded (e);
3634                         PrepareEditingRow (false, true);
3635                 }
3636
3637                 protected virtual void OnColumnAdded (DataGridViewColumnEventArgs e)
3638                 {
3639                         DataGridViewColumnEventHandler eh = (DataGridViewColumnEventHandler)(Events [ColumnAddedEvent]);
3640                         if (eh != null)
3641                                 eh (this, e);
3642                 }
3643
3644                 protected internal virtual void OnColumnContextMenuStripChanged (DataGridViewColumnEventArgs e)
3645                 {
3646                         DataGridViewColumnEventHandler eh = (DataGridViewColumnEventHandler)(Events [ColumnContextMenuStripChangedEvent]);
3647                         if (eh != null)
3648                                 eh (this, e);
3649                 }
3650
3651                 protected internal virtual void OnColumnDataPropertyNameChanged (DataGridViewColumnEventArgs e)
3652                 {
3653                         DataGridViewColumnEventHandler eh = (DataGridViewColumnEventHandler)(Events [ColumnDataPropertyNameChangedEvent]);
3654                         if (eh != null)
3655                                 eh (this, e);
3656                 }
3657
3658                 protected internal virtual void OnColumnDefaultCellStyleChanged (DataGridViewColumnEventArgs e)
3659                 {
3660                         DataGridViewColumnEventHandler eh = (DataGridViewColumnEventHandler)(Events [ColumnDefaultCellStyleChangedEvent]);
3661                         if (eh != null)
3662                                 eh (this, e);
3663                 }
3664
3665                 protected internal virtual void OnColumnDisplayIndexChanged (DataGridViewColumnEventArgs e)
3666                 {
3667                         DataGridViewColumnEventHandler eh = (DataGridViewColumnEventHandler)(Events [ColumnDisplayIndexChangedEvent]);
3668                         if (eh != null)
3669                                 eh (this, e);
3670                 }
3671
3672                 protected virtual void OnColumnDividerDoubleClick (DataGridViewColumnDividerDoubleClickEventArgs e)
3673                 {
3674                         DataGridViewColumnDividerDoubleClickEventHandler eh = (DataGridViewColumnDividerDoubleClickEventHandler)(Events [ColumnDividerDoubleClickEvent]);
3675                         if (eh != null)
3676                                 eh (this, e);
3677                 }
3678
3679                 protected internal virtual void OnColumnDividerWidthChanged (DataGridViewColumnEventArgs e)
3680                 {
3681                         DataGridViewColumnEventHandler eh = (DataGridViewColumnEventHandler)(Events [ColumnDividerWidthChangedEvent]);
3682                         if (eh != null)
3683                                 eh (this, e);
3684                 }
3685
3686                 protected internal virtual void OnColumnHeaderCellChanged (DataGridViewColumnEventArgs e)
3687                 {
3688                         DataGridViewColumnEventHandler eh = (DataGridViewColumnEventHandler)(Events [ColumnHeaderCellChangedEvent]);
3689                         if (eh != null)
3690                                 eh (this, e);
3691                 }
3692
3693                 protected virtual void OnColumnHeaderMouseClick (DataGridViewCellMouseEventArgs e)
3694                 {
3695                         DataGridViewColumn col = Columns[e.ColumnIndex];
3696
3697                         if (col.SortMode == DataGridViewColumnSortMode.Automatic) {
3698                                 ListSortDirection new_order;
3699
3700                                 // Always use ascending unless we are clicking on a
3701                                 // column that is already sorted ascending.
3702                                 if (SortedColumn != col || sortOrder != SortOrder.Ascending)
3703                                         new_order = ListSortDirection.Ascending;
3704                                 else
3705                                         new_order = ListSortDirection.Descending;
3706
3707                                 Sort (col, new_order);
3708                         }
3709
3710                         DataGridViewCellMouseEventHandler eh = (DataGridViewCellMouseEventHandler)(Events [ColumnHeaderMouseClickEvent]);
3711                         if (eh != null)
3712                                 eh (this, e);
3713                 }
3714
3715                 protected virtual void OnColumnHeaderMouseDoubleClick (DataGridViewCellMouseEventArgs e)
3716                 {
3717                         DataGridViewCellMouseEventHandler eh = (DataGridViewCellMouseEventHandler)(Events [ColumnHeaderMouseDoubleClickEvent]);
3718                         if (eh != null)
3719                                 eh (this, e);
3720                 }
3721
3722                 protected virtual void OnColumnHeadersBorderStyleChanged (EventArgs e)
3723                 {
3724                         EventHandler eh = (EventHandler)(Events [ColumnHeadersBorderStyleChangedEvent]);
3725                         if (eh != null)
3726                                 eh (this, e);
3727                 }
3728
3729                 protected virtual void OnColumnHeadersDefaultCellStyleChanged (EventArgs e)
3730                 {
3731                         EventHandler eh = (EventHandler)(Events [ColumnHeadersDefaultCellStyleChangedEvent]);
3732                         if (eh != null)
3733                                 eh (this, e);
3734                 }
3735
3736                 protected virtual void OnColumnHeadersHeightChanged (EventArgs e)
3737                 {
3738                         EventHandler eh = (EventHandler)(Events [ColumnHeadersHeightChangedEvent]);
3739                         if (eh != null)
3740                                 eh (this, e);
3741                 }
3742
3743                 protected virtual void OnColumnHeadersHeightSizeModeChanged (DataGridViewAutoSizeModeEventArgs e)
3744                 {
3745                         DataGridViewAutoSizeModeEventHandler eh = (DataGridViewAutoSizeModeEventHandler)(Events [ColumnHeadersHeightSizeModeChangedEvent]);
3746                         if (eh != null)
3747                                 eh (this, e);
3748                 }
3749
3750                 protected internal virtual void OnColumnMinimumWidthChanged (DataGridViewColumnEventArgs e)
3751                 {
3752                         DataGridViewColumnEventHandler eh = (DataGridViewColumnEventHandler)(Events [ColumnMinimumWidthChangedEvent]);
3753                         if (eh != null)
3754                                 eh (this, e);
3755                 }
3756
3757                 protected internal virtual void OnColumnNameChanged (DataGridViewColumnEventArgs e)
3758                 {
3759                         DataGridViewColumnEventHandler eh = (DataGridViewColumnEventHandler)(Events [ColumnNameChangedEvent]);
3760                         if (eh != null)
3761                                 eh (this, e);
3762                 }
3763
3764                 internal void OnColumnRemovedInternal (DataGridViewColumnEventArgs e)
3765                 {
3766                         if (e.Column.CellTemplate != null) {
3767                                 int index = e.Column.Index;
3768
3769                                 foreach (DataGridViewRow row in Rows)
3770                                         row.Cells.RemoveAt (index);
3771                         }
3772
3773                         AutoResizeColumnsInternal ();
3774                         OnColumnRemoved (e);
3775                         PrepareEditingRow (false, true);
3776                 }
3777
3778                 protected virtual void OnColumnRemoved (DataGridViewColumnEventArgs e)
3779                 {
3780                         DataGridViewColumnEventHandler eh = (DataGridViewColumnEventHandler)(Events [ColumnRemovedEvent]);
3781                         if (eh != null)
3782                                 eh (this, e);
3783                 }
3784
3785                 protected internal virtual void OnColumnSortModeChanged (DataGridViewColumnEventArgs e)
3786                 {
3787                         DataGridViewColumnEventHandler eh = (DataGridViewColumnEventHandler)(Events [ColumnSortModeChangedEvent]);
3788                         if (eh != null)
3789                                 eh (this, e);
3790                 }
3791
3792                 protected internal virtual void OnColumnStateChanged (DataGridViewColumnStateChangedEventArgs e)
3793                 {
3794                         DataGridViewColumnStateChangedEventHandler eh = (DataGridViewColumnStateChangedEventHandler)(Events [ColumnStateChangedEvent]);
3795                         if (eh != null)
3796                                 eh (this, e);
3797                 }
3798
3799                 protected internal virtual void OnColumnToolTipTextChanged (DataGridViewColumnEventArgs e)
3800                 {
3801                         DataGridViewColumnEventHandler eh = (DataGridViewColumnEventHandler)(Events [ColumnToolTipTextChangedEvent]);
3802                         if (eh != null)
3803                                 eh (this, e);
3804                 }
3805
3806                 protected internal virtual void OnColumnWidthChanged (DataGridViewColumnEventArgs e)
3807                 {
3808                         DataGridViewColumnEventHandler eh = (DataGridViewColumnEventHandler)(Events [ColumnWidthChangedEvent]);
3809                         if (eh != null)
3810                                 eh (this, e);
3811                 }
3812
3813                 protected virtual void OnCurrentCellChanged (EventArgs e)
3814                 {
3815                         EventHandler eh = (EventHandler)(Events [CurrentCellChangedEvent]);
3816                         if (eh != null)
3817                                 eh (this, e);
3818                 }
3819
3820                 protected virtual void OnCurrentCellDirtyStateChanged (EventArgs e)
3821                 {
3822                         EventHandler eh = (EventHandler)(Events [CurrentCellDirtyStateChangedEvent]);
3823                         if (eh != null)
3824                                 eh (this, e);
3825                 }
3826
3827                 protected override void OnCursorChanged (EventArgs e)
3828                 {
3829                         base.OnCursorChanged (e);
3830                 }
3831
3832                 protected virtual void OnDataBindingComplete (DataGridViewBindingCompleteEventArgs e)
3833                 {
3834                         DataGridViewBindingCompleteEventHandler eh = (DataGridViewBindingCompleteEventHandler)(Events [DataBindingCompleteEvent]);
3835                         if (eh != null)
3836                                 eh (this, e);
3837                 }
3838
3839                 protected virtual void OnDataError (bool displayErrorDialogIfNoHandler, DataGridViewDataErrorEventArgs e)
3840                 {
3841                         DataGridViewDataErrorEventHandler eh = (DataGridViewDataErrorEventHandler)(Events [DataErrorEvent]);
3842
3843                         if (eh != null)
3844                                 eh (this, e);
3845                         else if (displayErrorDialogIfNoHandler)
3846                                 MessageBox.Show (e.ToString ());
3847                 }
3848                 protected virtual void OnDataMemberChanged (EventArgs e) {
3849                         EventHandler eh = (EventHandler)(Events [DataMemberChangedEvent]);
3850                         if (eh != null)
3851                                 eh (this, e);
3852                 }
3853
3854                 protected virtual void OnDataSourceChanged (EventArgs e) {
3855                         EventHandler eh = (EventHandler)(Events [DataSourceChangedEvent]);
3856                         if (eh != null)
3857                                 eh (this, e);
3858                 }
3859
3860                 protected virtual void OnDefaultCellStyleChanged (EventArgs e) {
3861                         EventHandler eh = (EventHandler)(Events [DefaultCellStyleChangedEvent]);
3862                         if (eh != null)
3863                                 eh (this, e);
3864                 }
3865
3866                 protected virtual void OnDefaultValuesNeeded (DataGridViewRowEventArgs e) {
3867                         DataGridViewRowEventHandler eh = (DataGridViewRowEventHandler)(Events [DefaultValuesNeededEvent]);
3868                         if (eh != null)
3869                                 eh (this, e);
3870                 }
3871
3872                 protected override void OnDoubleClick (EventArgs e) {
3873                         base.OnDoubleClick(e);
3874                 }
3875
3876                 protected virtual void OnEditingControlShowing (DataGridViewEditingControlShowingEventArgs e) {
3877                         DataGridViewEditingControlShowingEventHandler eh = (DataGridViewEditingControlShowingEventHandler)(Events [EditingControlShowingEvent]);
3878                         if (eh != null)
3879                                 eh (this, e);
3880                 }
3881
3882                 protected virtual void OnEditModeChanged (EventArgs e)
3883                 {
3884                         EventHandler eh = (EventHandler)(Events [EditModeChangedEvent]);
3885                         if (eh != null)
3886                                 eh (this, e);
3887                 }
3888
3889                 protected override void OnEnabledChanged (EventArgs e)
3890                 {
3891                         base.OnEnabledChanged(e);
3892                 }
3893
3894                 protected override void OnEnter (EventArgs e )
3895                 {
3896                         base.OnEnter(e);
3897                 }
3898
3899                 protected override void OnGotFocus(EventArgs e)
3900                 {
3901                         base.OnGotFocus (e);
3902
3903                         // To add focus rectangle if needed
3904                         if (currentCell != null && ShowFocusCues)
3905                                 InvalidateCell (currentCell);
3906                 }
3907
3908                 protected override void OnFontChanged (EventArgs e)
3909                 {
3910                         base.OnFontChanged(e);
3911                 }
3912
3913                 protected override void OnForeColorChanged (EventArgs e)
3914                 {
3915                         base.OnForeColorChanged(e);
3916                 }
3917
3918                 protected virtual void OnGridColorChanged (EventArgs e)
3919                 {
3920                         EventHandler eh = (EventHandler)(Events [GridColorChangedEvent]);
3921                         if (eh != null)
3922                                 eh (this, e);
3923                 }
3924
3925                 protected override void OnHandleCreated (EventArgs e)
3926                 {
3927                         base.OnHandleCreated(e);
3928
3929                         if (CurrentCell == null && Rows.Count > 0 && Columns.Count > 0)
3930                                 MoveCurrentCell (ColumnDisplayIndexToIndex (0), 0, true, false, false, false);
3931                 }
3932
3933                 protected override void OnHandleDestroyed(EventArgs e)
3934                 {
3935                         base.OnHandleDestroyed (e);
3936                 }
3937
3938                 [EditorBrowsable (EditorBrowsableState.Advanced)]
3939                 protected override void OnKeyDown (KeyEventArgs e)
3940                 {
3941                         base.OnKeyDown (e);
3942
3943                         e.Handled = ProcessDataGridViewKey (e);
3944                 }
3945
3946                 [EditorBrowsable (EditorBrowsableState.Advanced)]
3947                 protected override void OnKeyPress (KeyPressEventArgs e)
3948                 {
3949                         base.OnKeyPress(e);
3950                 }
3951
3952                 [EditorBrowsable (EditorBrowsableState.Advanced)]
3953                 protected override void OnKeyUp (KeyEventArgs e)
3954                 {
3955                         base.OnKeyUp(e);
3956                 }
3957
3958                 protected override void OnLayout (LayoutEventArgs e)
3959                 {
3960                         if (horizontalScrollBar.Visible && verticalScrollBar.Visible) {
3961                                 horizontalScrollBar.Bounds = new Rectangle (BorderWidth, Height - BorderWidth - horizontalScrollBar.Height, Width - (2 * BorderWidth) - verticalScrollBar.Width, horizontalScrollBar.Height);
3962                                 verticalScrollBar.Bounds = new Rectangle (Width - BorderWidth - verticalScrollBar.Width, BorderWidth, verticalScrollBar.Width, Height - (2 * BorderWidth) - horizontalScrollBar.Height);
3963                         } else if (horizontalScrollBar.Visible)
3964                                 horizontalScrollBar.Bounds = new Rectangle (BorderWidth, Height - BorderWidth - horizontalScrollBar.Height, Width - (2 * BorderWidth), horizontalScrollBar.Height);
3965                         else if (verticalScrollBar.Visible)
3966                                 verticalScrollBar.Bounds = new Rectangle (Width - BorderWidth - verticalScrollBar.Width, BorderWidth, verticalScrollBar.Width,  Height - (2 * BorderWidth));
3967
3968                         AutoResizeColumnsInternal ();
3969                         Invalidate ();
3970                 }
3971
3972                 protected override void OnLeave (EventArgs e)
3973                 {
3974                         base.OnLeave(e);
3975                 }
3976
3977                 protected override void OnLostFocus(EventArgs e)
3978                 {
3979                         base.OnLostFocus (e);
3980
3981                         // To remove focus rectangle if needed
3982                         if (currentCell != null && ShowFocusCues)
3983                                 InvalidateCell (currentCell);
3984                 }
3985
3986                 protected override void OnMouseClick (MouseEventArgs e)
3987                 {
3988                         base.OnMouseClick(e);
3989
3990                         if (column_resize_active || row_resize_active)
3991                                 return;
3992
3993                         //Console.WriteLine("Mouse: Clicks: {0}; Delta: {1}; X: {2}; Y: {3};", e.Clicks, e.Delta, e.X, e.Y);
3994                         HitTestInfo hit = HitTest (e.X, e.Y);
3995
3996                         switch (hit.Type) {
3997                                 case DataGridViewHitTestType.Cell:
3998                                         Rectangle display = GetCellDisplayRectangle (hit.ColumnIndex, hit.RowIndex, false);
3999                                         Point cellpoint = new Point (e.X - display.X, e.Y - display.Y);
4000
4001                                         OnCellMouseClick (new DataGridViewCellMouseEventArgs (hit.ColumnIndex, hit.RowIndex, cellpoint.X, cellpoint.Y, e));
4002
4003                                         DataGridViewCell cell = GetCellInternal (hit.ColumnIndex, hit.RowIndex);
4004
4005                                         if (cell.GetContentBounds (hit.RowIndex).Contains (cellpoint)) {
4006                                                 DataGridViewCellEventArgs dgvcea = new DataGridViewCellEventArgs (hit.ColumnIndex, hit.RowIndex);
4007                                                 OnCellContentClick (dgvcea);
4008                                         }
4009
4010                                         break;
4011                                 case DataGridViewHitTestType.ColumnHeader:
4012                                         Rectangle display2 = GetCellDisplayRectangle (hit.ColumnIndex, hit.RowIndex, false);
4013                                         Point cellpoint2 = new Point (e.X - display2.X, e.Y - display2.Y);
4014
4015                                         OnColumnHeaderMouseClick (new DataGridViewCellMouseEventArgs (hit.ColumnIndex, hit.RowIndex, cellpoint2.X, cellpoint2.Y, e));
4016                                         break;
4017                         }
4018                 }
4019
4020                 protected override void OnMouseDoubleClick (MouseEventArgs e)
4021                 {
4022                         base.OnMouseDoubleClick(e);
4023                 }
4024
4025                 private void DoSelectionOnMouseDown (HitTestInfo hitTest)
4026                 {
4027                         Keys modifiers = Control.ModifierKeys;
4028                         bool isControl = (modifiers & Keys.Control) != 0;
4029                         bool isShift = (modifiers & Keys.Shift) != 0;
4030                         //bool isRowHeader = hitTest.Type == DataGridViewHitTestType.RowHeader;
4031                         //bool isColHeader = hitTest.Type == DataGridViewHitTestType.ColumnHeader;
4032                         DataGridViewSelectionMode mode;
4033
4034                         switch (hitTest.Type) {
4035                         case DataGridViewHitTestType.Cell:
4036                                 mode = selectionMode;
4037                                 break;
4038                         case DataGridViewHitTestType.ColumnHeader:
4039                                 mode = selectionMode == DataGridViewSelectionMode.ColumnHeaderSelect ? DataGridViewSelectionMode.FullColumnSelect : selectionMode;
4040
4041                                 if (mode != DataGridViewSelectionMode.FullColumnSelect)
4042                                         return;
4043                                 break;
4044                         case DataGridViewHitTestType.RowHeader:
4045                                 mode = selectionMode == DataGridViewSelectionMode.RowHeaderSelect ?  DataGridViewSelectionMode.FullRowSelect : selectionMode;
4046
4047                                 if (mode != DataGridViewSelectionMode.FullRowSelect)
4048                                         return;
4049                                 break; // Handled below
4050                         default:
4051                                 return;
4052                         }
4053
4054                         if (!isControl) {
4055                                 // If SHIFT is pressed:
4056                                 //      Select all from selected_row/column/cell to current row/column/cell, unselect everything else
4057                                 // otherwise:
4058                                 //      Unselect all rows/columns/cells, select the clicked one
4059                                 int min_row, max_row;
4060                                 int min_col, max_col;
4061                                 if (!isShift) {
4062                                         selected_row = hitTest.RowIndex;
4063                                         selected_column = hitTest.ColumnIndex;
4064                                 }
4065                                 if (!isShift) {
4066                                         if (selected_row != -1)
4067                                                 selected_row = hitTest.RowIndex;
4068                                         if (selected_column != -1)
4069                                                 selected_column = hitTest.ColumnIndex;
4070                                 }
4071                                 if (selected_row >= hitTest.RowIndex) {
4072                                         min_row = hitTest.RowIndex;
4073                                         max_row = isShift ? selected_row : min_row;
4074                                 } else {
4075                                         max_row = hitTest.RowIndex;
4076                                         min_row = isShift ? selected_row : max_row;
4077                                 }
4078                                 if (selected_column >= hitTest.ColumnIndex) {
4079                                         min_col = hitTest.ColumnIndex;
4080                                         max_col = isShift ? selected_column : min_col;
4081                                 } else {
4082                                         max_col = hitTest.ColumnIndex;
4083                                         min_col = isShift ? selected_column : max_col;
4084                                 }
4085
4086                                 switch (mode) {
4087                                 case DataGridViewSelectionMode.FullRowSelect:
4088                                         for (int i = 0; i < RowCount; i++) {
4089                                                 bool select = i >= min_row && i <= max_row;
4090                                                 if (!select) {
4091                                                         for (int c = 0; c < ColumnCount; c++) {
4092                                                                 if (Rows [i].Cells [c].Selected) {
4093                                                                         SetSelectedCellCore (c, i, false);
4094                                                                 }
4095                                                         }
4096                                                 }
4097                                                 if (select != Rows [i].Selected) {
4098                                                         SetSelectedRowCore (i, select);
4099                                                 }
4100                                         }
4101                                         break;
4102                                 case DataGridViewSelectionMode.FullColumnSelect:
4103                                         for (int i = 0; i < ColumnCount; i++) {
4104                                                 bool select = i >= min_col && i <= max_col;
4105                                                 if (!select) {
4106                                                         for (int r = 0; r < RowCount; r++) {
4107                                                                 if (Rows [r].Cells [i].Selected) {
4108                                                                         SetSelectedCellCore (i, r, false);
4109                                                                 }
4110                                                         }
4111                                                 }
4112                                                 if (select != Columns [i].Selected) {
4113                                                         SetSelectedColumnCore (i, select);
4114                                                 }
4115                                         }
4116                                         break;
4117                                 case DataGridViewSelectionMode.ColumnHeaderSelect:
4118                                 case DataGridViewSelectionMode.RowHeaderSelect:
4119                                         //break;
4120                                 case DataGridViewSelectionMode.CellSelect:
4121                                         if (!isShift) {
4122                                                 for (int c = 0; c < ColumnCount; c++) {
4123                                                         if (columns [c].Selected)
4124                                                                 SetSelectedColumnCore (c, false);
4125                                                 }
4126
4127                                                 for (int r = 0; r < RowCount; r++) {
4128                                                         if (rows [r].Selected)
4129                                                                 SetSelectedRowCore (r, false);
4130                                                 }
4131                                         }
4132                                         for (int r = 0; r < RowCount; r++) {
4133                                                 for (int c = 0; c < ColumnCount; c++) {
4134                                                         bool select = (r >= min_row && r <= max_row) && (c >= min_col && c <= max_col);
4135                                                         if (select != Rows [r].Cells [c].Selected)
4136                                                                 SetSelectedCellCore (c, r, select);
4137                                                 }
4138                                         }
4139                                         break;
4140                                 }
4141
4142                         } else if (isControl) {
4143                                 // Switch the selected state of the row.
4144                                 switch (mode) {
4145                                 case DataGridViewSelectionMode.FullRowSelect:
4146                                         SetSelectedRowCore (hitTest.RowIndex, !rows [hitTest.RowIndex].Selected);
4147                                         break;
4148                                 case DataGridViewSelectionMode.FullColumnSelect:
4149                                         SetSelectedColumnCore (hitTest.ColumnIndex, !columns [hitTest.ColumnIndex].Selected);
4150                                         break;
4151                                 case DataGridViewSelectionMode.ColumnHeaderSelect:
4152                                 case DataGridViewSelectionMode.RowHeaderSelect:
4153                                         //break;
4154                                 case DataGridViewSelectionMode.CellSelect:
4155                                         if (hitTest.ColumnIndex >= 0 && hitTest.RowIndex >= 0) {
4156                                                 SetSelectedCellCore (hitTest.ColumnIndex, hitTest.RowIndex, !Rows [hitTest.RowIndex].Cells [hitTest.ColumnIndex].Selected);
4157                                         }
4158                                         break;
4159                                 }
4160                         }
4161
4162                 }
4163
4164                 protected override void OnMouseDown (MouseEventArgs e)
4165                 {
4166                         base.OnMouseDown(e);
4167
4168                         HitTestInfo hitTest = HitTest(e.X, e.Y);
4169
4170                         DataGridViewCell cell = null;
4171                         DataGridViewRow row = null;
4172                         Rectangle cellBounds;
4173
4174                         if (hitTest.Type == DataGridViewHitTestType.ColumnHeader && MouseOverColumnResize (hitTest.ColumnIndex, e.X)) {
4175                                 if (e.Clicks == 2) {
4176                                         EndEdit ();
4177                                         AutoResizeColumn (hitTest.ColumnIndex);
4178                                         return;
4179                                 }
4180
4181                                 resize_band = hitTest.ColumnIndex;
4182                                 column_resize_active = true;
4183                                 resize_band_start = e.X;
4184                                 resize_band_delta = 0;
4185                                 EndEdit ();
4186                                 DrawVerticalResizeLine (resize_band_start);
4187                                 return;
4188                         }
4189
4190                         if (hitTest.Type == DataGridViewHitTestType.RowHeader && MouseOverRowResize (hitTest.RowIndex, e.Y)) {
4191                                 if (e.Clicks == 2) {
4192                                         EndEdit ();
4193                                         AutoResizeRow (hitTest.RowIndex);
4194                                         return;
4195                                 }
4196
4197                                 resize_band = hitTest.RowIndex;
4198                                 row_resize_active = true;
4199                                 resize_band_start = e.Y;
4200                                 resize_band_delta = 0;
4201                                 EndEdit ();
4202                                 DrawHorizontalResizeLine (resize_band_start);
4203                                 return;
4204                         }
4205
4206                         if (hitTest.Type == DataGridViewHitTestType.Cell) {
4207                                 row = rows [hitTest.RowIndex];
4208                                 cell = row.Cells [hitTest.ColumnIndex];
4209                                 SetCurrentCellAddressCore (cell.ColumnIndex, cell.RowIndex, false, true, true);
4210                                 cellBounds = GetCellDisplayRectangle (hitTest.ColumnIndex, hitTest.RowIndex, false);
4211                                 OnCellMouseDown (new DataGridViewCellMouseEventArgs (hitTest.ColumnIndex, hitTest.RowIndex, e.X - cellBounds.X, e.Y - cellBounds.Y, e));
4212                                 OnCellClick (new DataGridViewCellEventArgs (hitTest.ColumnIndex, hitTest.RowIndex));
4213                         }
4214
4215                         DoSelectionOnMouseDown (hitTest);
4216
4217                         if (hitTest.Type != DataGridViewHitTestType.Cell) {
4218                                 if (hitTest.Type == DataGridViewHitTestType.ColumnHeader)
4219                                         pressed_header_cell = columns [hitTest.ColumnIndex].HeaderCell;
4220                                 else if (hitTest.Type == DataGridViewHitTestType.RowHeader)
4221                                         pressed_header_cell = rows [hitTest.RowIndex].HeaderCell;
4222                                 Invalidate ();
4223                                 return;
4224                         }
4225
4226                         Invalidate();
4227                         return;
4228                 }
4229
4230                 private void UpdateBindingPosition (int position)
4231                 {
4232                         BindingSource source = dataSource as BindingSource;
4233                         if (source != null && source.CurrencyManager != null)
4234                                 source.CurrencyManager.Position = position;
4235                 }
4236
4237                 protected override void OnMouseEnter (EventArgs e)
4238                 {
4239                         base.OnMouseEnter(e);
4240                 }
4241
4242                 protected override void OnMouseLeave (EventArgs e)
4243                 {
4244                         base.OnMouseLeave (e);
4245
4246                         if (hover_cell != null) {
4247                                 OnCellMouseLeave (new DataGridViewCellEventArgs (hover_cell.ColumnIndex, hover_cell.RowIndex));
4248                                 hover_cell = null;
4249                         }
4250
4251                         EnteredHeaderCell = null;
4252                 }
4253
4254                 protected override void OnMouseMove (MouseEventArgs e)
4255                 {
4256                         base.OnMouseMove (e);
4257
4258                         if (column_resize_active) {
4259                                 // Erase the old line
4260                                 DrawVerticalResizeLine (resize_band_start + resize_band_delta);
4261
4262                                 resize_band_delta = e.X - resize_band_start;
4263
4264                                 // Draw the new line
4265                                 DrawVerticalResizeLine (resize_band_start + resize_band_delta);
4266                                 return;
4267                         }
4268
4269                         if (row_resize_active) {
4270                                 // Erase the old line
4271                                 DrawHorizontalResizeLine (resize_band_start + resize_band_delta);
4272
4273                                 resize_band_delta = e.Y - resize_band_start;
4274
4275                                 // Draw the new line
4276                                 DrawHorizontalResizeLine (resize_band_start + resize_band_delta);
4277                                 return;
4278                         }
4279
4280                         Cursor new_cursor = Cursors.Default;
4281                         HitTestInfo hit = this.HitTest (e.X, e.Y);
4282
4283                         if (hit.Type == DataGridViewHitTestType.Cell) {
4284                                 EnteredHeaderCell = null;
4285
4286                                 DataGridViewCell new_cell = GetCellInternal (hit.ColumnIndex, hit.RowIndex);
4287
4288                                 // Check if we have moved into an error icon area
4289                                 Rectangle icon = new_cell.ErrorIconBounds;
4290
4291                                 if (!icon.IsEmpty) {
4292                                         Point loc = GetCellDisplayRectangle (hit.ColumnIndex, hit.RowIndex, false).Location;
4293
4294                                         icon.X += loc.X;
4295                                         icon.Y += loc.Y;
4296
4297                                         if (icon.Contains (e.X, e.Y)) {
4298                                                 if (tooltip_currently_showing != new_cell)
4299                                                         MouseEnteredErrorIcon (new_cell);
4300                                         } else
4301                                                 MouseLeftErrorIcon (new_cell);
4302                                 }
4303
4304                                 // We have never been in a cell before
4305                                 if (hover_cell == null) {
4306                                         hover_cell = new_cell;
4307                                         OnCellMouseEnter (new DataGridViewCellEventArgs (hit.ColumnIndex, hit.RowIndex));
4308
4309                                         Rectangle display = GetCellDisplayRectangle (hit.ColumnIndex, hit.RowIndex, false);
4310                                         OnCellMouseMove (new DataGridViewCellMouseEventArgs (hit.ColumnIndex, hit.RowIndex, e.X - display.X, e.Y - display.Y, e));
4311
4312                                         return;
4313                                 }
4314
4315                                 // Were we already in this cell?
4316                                 if (hover_cell.RowIndex == hit.RowIndex && hover_cell.ColumnIndex == hit.ColumnIndex) {
4317                                         Rectangle display = GetCellDisplayRectangle (hit.ColumnIndex, hit.RowIndex, false);
4318                                         OnCellMouseMove (new DataGridViewCellMouseEventArgs (hit.ColumnIndex, hit.RowIndex, e.X - display.X, e.Y - display.Y, e));
4319
4320                                         return;
4321                                 }
4322
4323                                 // We are changing cells
4324                                 OnCellMouseLeave (new DataGridViewCellEventArgs (hover_cell.ColumnIndex, hover_cell.RowIndex));
4325
4326                                 hover_cell = new_cell;
4327
4328                                 OnCellMouseEnter (new DataGridViewCellEventArgs (hit.ColumnIndex, hit.RowIndex));
4329
4330                                 Rectangle display2 = GetCellDisplayRectangle (hit.ColumnIndex, hit.RowIndex, false);
4331                                 OnCellMouseMove (new DataGridViewCellMouseEventArgs (hit.ColumnIndex, hit.RowIndex, e.X - display2.X, e.Y - display2.Y, e));
4332
4333                                 return;
4334                         } else if (hit.Type == DataGridViewHitTestType.RowHeader) {
4335                                 DataGridViewRowHeaderCell new_cell = Rows[hit.RowIndex].HeaderCell;
4336
4337                                 EnteredHeaderCell = new_cell;
4338
4339                                 if (MouseOverRowResize (hit.RowIndex, e.Y))
4340                                         new_cursor = Cursors.HSplit;
4341
4342                                 // Check if we have moved into an error icon area
4343                                 Rectangle icon = new_cell.InternalErrorIconsBounds;
4344
4345                                 if (!icon.IsEmpty) {
4346                                         Point loc = GetCellDisplayRectangle (0, hit.RowIndex, false).Location;
4347
4348                                         icon.X += BorderWidth;
4349                                         icon.Y += loc.Y;
4350
4351                                         if (icon.Contains (e.X, e.Y)) {
4352                                                 if (tooltip_currently_showing != new_cell)
4353                                                         MouseEnteredErrorIcon (new_cell);
4354                                         } else
4355                                                 MouseLeftErrorIcon (new_cell);
4356                                 }
4357                         } else if (hit.Type == DataGridViewHitTestType.TopLeftHeader) {
4358                                 EnteredHeaderCell = null;
4359
4360                                 DataGridViewTopLeftHeaderCell new_cell = (DataGridViewTopLeftHeaderCell)TopLeftHeaderCell;
4361
4362                                 // Check if we have moved into an error icon area
4363                                 Rectangle icon = new_cell.InternalErrorIconsBounds;
4364
4365                                 if (!icon.IsEmpty) {
4366                                         Point loc = Point.Empty;
4367
4368                                         icon.X += BorderWidth;
4369                                         icon.Y += loc.Y;
4370
4371                                         if (icon.Contains (e.X, e.Y)) {
4372                                                 if (tooltip_currently_showing != new_cell)
4373                                                         MouseEnteredErrorIcon (new_cell);
4374                                         } else
4375                                                 MouseLeftErrorIcon (new_cell);
4376                                 }
4377
4378                         } else {
4379                                 if (hit.Type == DataGridViewHitTestType.ColumnHeader) {
4380                                         EnteredHeaderCell = Columns [hit.ColumnIndex].HeaderCell;
4381
4382                                         if (MouseOverColumnResize (hit.ColumnIndex, e.X))
4383                                                 new_cursor = Cursors.VSplit;
4384                                 } else
4385                                         EnteredHeaderCell = null;
4386
4387                                 // We have left the cell area
4388                                 if (hover_cell != null) {
4389                                         OnCellMouseLeave (new DataGridViewCellEventArgs (hover_cell.ColumnIndex, hover_cell.RowIndex));
4390                                         hover_cell = null;
4391                                 }
4392                         }
4393
4394                         Cursor = new_cursor;
4395                 }
4396
4397                 protected override void OnMouseUp (MouseEventArgs e)
4398                 {
4399                         base.OnMouseUp(e);
4400
4401                         if (column_resize_active) {
4402                                 column_resize_active = false;
4403
4404                                 if (resize_band_delta + Columns[resize_band].Width < 0)
4405                                         resize_band_delta = -Columns[resize_band].Width;
4406
4407                                 Columns[resize_band].Width = Math.Max (resize_band_delta + Columns[resize_band].Width, Columns[resize_band].MinimumWidth);
4408                                 Invalidate ();
4409                                 return;
4410                         }
4411
4412                         if (row_resize_active) {
4413                                 row_resize_active = false;
4414
4415                                 if (resize_band_delta + Rows[resize_band].Height < 0)
4416                                         resize_band_delta = -Rows[resize_band].Height;
4417
4418                                 Rows[resize_band].Height = Math.Max (resize_band_delta + Rows[resize_band].Height, Rows[resize_band].MinimumHeight);
4419                                 Invalidate ();
4420                                 return;
4421                         }
4422
4423                         HitTestInfo hit = this.HitTest (e.X, e.Y);
4424
4425                         if (hit.Type == DataGridViewHitTestType.Cell) {
4426                                 Rectangle display = GetCellDisplayRectangle (hit.ColumnIndex, hit.RowIndex, false);
4427                                 OnCellMouseUp (new DataGridViewCellMouseEventArgs (hit.ColumnIndex, hit.RowIndex, e.X - display.X, e.Y - display.Y, e));
4428                         }
4429
4430                         if (pressed_header_cell != null) {
4431                                 DataGridViewHeaderCell cell = pressed_header_cell;
4432                                 pressed_header_cell = null;
4433                                 if (ThemeEngine.Current.DataGridViewHeaderCellHasPressedStyle (this))
4434                                         Invalidate (GetHeaderCellBounds (cell));
4435                         }
4436                 }
4437
4438                 protected override void OnMouseWheel (MouseEventArgs e)
4439                 {
4440                         base.OnMouseWheel(e);
4441                 }
4442
4443                 protected virtual void OnMultiSelectChanged (EventArgs e)
4444                 {
4445                         EventHandler eh = (EventHandler)(Events [MultiSelectChangedEvent]);
4446                         if (eh != null) eh (this, e);
4447                 }
4448
4449                 protected virtual void OnNewRowNeeded (DataGridViewRowEventArgs e) {
4450                         DataGridViewRowEventHandler eh = (DataGridViewRowEventHandler)(Events [NewRowNeededEvent]);
4451                         if (eh != null) eh (this, e);
4452                 }
4453
4454                 int first_row_index = 0;
4455                 internal int first_col_index = 0;
4456
4457                 protected override void OnPaint (PaintEventArgs e)
4458                 {
4459                         base.OnPaint(e);
4460
4461                         Graphics g = e.Graphics;
4462                         Rectangle bounds = ClientRectangle;
4463
4464                         // Paint the background
4465                         PaintBackground (g, e.ClipRectangle, bounds);
4466
4467                         List<DataGridViewColumn> sortedColumns = columns.ColumnDisplayIndexSortedArrayList;
4468
4469                         // Take borders into account
4470                         bounds.Inflate (-BorderWidth, -BorderWidth);
4471
4472                         // Paint the top left cell
4473                         if (rowHeadersVisible && columnHeadersVisible && ColumnCount > 0) {
4474                                 Rectangle topleftbounds = new Rectangle (bounds.X, bounds.Y, rowHeadersWidth, columnHeadersHeight);
4475
4476                                 TopLeftHeaderCell.PaintWork (g, e.ClipRectangle, topleftbounds, -1, TopLeftHeaderCell.State, ColumnHeadersDefaultCellStyle, AdvancedColumnHeadersBorderStyle, DataGridViewPaintParts.All);
4477                         }
4478
4479                         // Paint the column headers
4480                         if (columnHeadersVisible) {
4481                                 Rectangle headerBounds = bounds;
4482                                 headerBounds.Height = columnHeadersHeight;
4483
4484                                 if (rowHeadersVisible)
4485                                         headerBounds.X += rowHeadersWidth;
4486
4487                                 for (int index = first_col_index; index < sortedColumns.Count; index++) {
4488                                         DataGridViewColumn col = sortedColumns[index];
4489
4490                                         if (!col.Visible)
4491                                                 continue;
4492
4493                                         headerBounds.Width = col.Width;
4494                                         DataGridViewCell cell = col.HeaderCell;
4495
4496                                         DataGridViewAdvancedBorderStyle intermediateBorderStyle = (DataGridViewAdvancedBorderStyle)((ICloneable)this.AdvancedColumnHeadersBorderStyle).Clone ();
4497                                         DataGridViewAdvancedBorderStyle borderStyle = AdjustColumnHeaderBorderStyle (this.AdvancedColumnHeadersBorderStyle, intermediateBorderStyle, cell.ColumnIndex == 0, cell.ColumnIndex == columns.Count - 1);
4498
4499                                         cell.PaintWork (g, e.ClipRectangle, headerBounds, -1, cell.State, cell.InheritedStyle, borderStyle, DataGridViewPaintParts.All);
4500
4501                                         headerBounds.X += col.Width;
4502                                 }
4503
4504                                 bounds.Y += columnHeadersHeight;
4505                         }
4506
4507                         gridWidth = rowHeadersVisible ? rowHeadersWidth : 0;
4508                         gridHeight = 0;
4509
4510                         int first_row_height = Rows.Count > 0 ? Rows[Math.Min (Rows.Count - 1, first_row_index)].Height : 0;
4511 //                      int room_left = this.Height;
4512
4513                         // Reset all columns to !Displayed
4514                         for (int i = 0; i < Columns.Count; i++)
4515                                 Columns[i].DisplayedInternal = false;
4516
4517                         // Set Displayed columns
4518                         for (int i = first_col_index; i < Columns.Count; i++) {
4519                                 DataGridViewColumn col = Columns.ColumnDisplayIndexSortedArrayList[i];
4520
4521                                 if (!col.Visible)
4522                                         continue;
4523
4524                                 col.DisplayedInternal = true;
4525                                 gridWidth += col.Width;
4526
4527                                 if (gridWidth >= Width)
4528                                         break;
4529                         }
4530
4531                         // Reset all rows to !Displayed
4532                         for (int i = 0; i < Rows.Count; i++)
4533                                 GetRowInternal (i).DisplayedInternal = false;
4534
4535                         // Draw rows
4536                         for (int index = first_row_index; index < Rows.Count; index++) {
4537                                 DataGridViewRow row = Rows[index];
4538                                 GetRowInternal (index).DisplayedInternal = true;
4539
4540                                 bounds.Height = row.Height;
4541                                 bool is_first = row.Index == 0;
4542                                 bool is_last = row.Index == rows.Count - 1;
4543
4544                                 row.Paint (g, e.ClipRectangle, bounds, row.Index, row.GetState (row.Index), is_first, is_last);
4545
4546                                 bounds.Y += bounds.Height;
4547                                 bounds.X = BorderWidth;
4548
4549                                 if (bounds.Y >= ClientSize.Height - (horizontalScrollBar.Visible ? horizontalScrollBar.Height : 0))
4550                                         break;
4551
4552                                 gridHeight += row.Height;
4553                         }
4554
4555                         gridWidth = 0;
4556
4557                         foreach (DataGridViewColumn col in sortedColumns)
4558                                 if (col.Visible)
4559                                         gridWidth += col.Width;
4560
4561                         gridHeight = 0;
4562
4563                         foreach (DataGridViewRow row in Rows)
4564                                 gridHeight += row.Height;
4565
4566                         if (rowHeadersVisible)
4567                                 gridWidth += rowHeadersWidth;
4568
4569                         if (columnHeadersVisible)
4570                                 gridHeight += columnHeadersHeight;
4571
4572                         bool horizontalVisible = false;
4573                         bool verticalVisible = false;
4574
4575                         if (AutoSize) {
4576                                 if (gridWidth > Size.Width || gridHeight > Size.Height) {
4577                                         Size = new Size(gridWidth, gridHeight);
4578                                 }
4579                         }
4580                         else {
4581                                 if (gridWidth > Size.Width) {
4582                                         horizontalVisible = true;
4583                                 }
4584                                 if (gridHeight > Size.Height) {
4585                                         verticalVisible = true;
4586                                 }
4587                                 if (horizontalScrollBar.Visible && (gridHeight + horizontalScrollBar.Height) > Size.Height) {
4588                                         verticalVisible = true;
4589                                 }
4590                                 if (verticalScrollBar.Visible && (gridWidth + verticalScrollBar.Width) > Size.Width) {
4591                                         horizontalVisible = true;
4592                                 }
4593                                 if (horizontalVisible) {
4594                                         horizontalScrollBar.Minimum = 0;
4595                                         horizontalScrollBar.Maximum = gridWidth;
4596                                         horizontalScrollBar.SmallChange = Columns[first_col_index].Width;
4597                                         horizontalScrollBar.LargeChange = ClientSize.Width - rowHeadersWidth;
4598                                 }
4599                                 if (verticalVisible) {
4600                                         verticalScrollBar.Minimum = 0;
4601                                         verticalScrollBar.Maximum = gridHeight;
4602                                         verticalScrollBar.SmallChange = first_row_height + 1;
4603                                         verticalScrollBar.LargeChange = ClientSize.Height - columnHeadersHeight;
4604                                 }
4605                         }
4606
4607                         horizontalScrollBar.Visible = horizontalVisible;
4608                         verticalScrollBar.Visible = verticalVisible;
4609
4610                         // Paint the bottom right square if both scrollbars are displayed
4611                         if (horizontalScrollBar.Visible && verticalScrollBar.Visible)
4612                                 g.FillRectangle (SystemBrushes.Control, new Rectangle (horizontalScrollBar.Right, verticalScrollBar.Bottom, verticalScrollBar.Width, horizontalScrollBar.Height));
4613
4614                         // Paint the border
4615                         bounds = ClientRectangle;
4616
4617                         switch (BorderStyle) {
4618                                 case BorderStyle.FixedSingle:
4619                                         g.DrawRectangle (Pens.Black, new Rectangle (bounds.Left, bounds.Top, bounds.Width - 1, bounds.Height - 1));
4620                                         break;
4621                                 case BorderStyle.Fixed3D:
4622                                         ControlPaint.DrawBorder3D (g, bounds, Border3DStyle.Sunken);
4623                                         break;
4624                         }
4625                 }
4626
4627                 protected virtual void OnReadOnlyChanged (EventArgs e) {
4628                         EventHandler eh = (EventHandler)(Events [ReadOnlyChangedEvent]);
4629                         if (eh != null)
4630                                 eh (this, e);
4631                 }
4632
4633                 protected override void OnResize (EventArgs e) {
4634                         base.OnResize(e);
4635                         AutoResizeColumnsInternal ();
4636
4637                         OnVScrollBarScroll (this, new ScrollEventArgs (ScrollEventType.ThumbPosition, verticalScrollBar.Value));
4638                         OnHScrollBarScroll (this, new ScrollEventArgs (ScrollEventType.ThumbPosition, horizontalScrollBar.Value));
4639                 }
4640
4641                 protected override void OnRightToLeftChanged (EventArgs e) {
4642                         base.OnRightToLeftChanged(e);
4643                 }
4644
4645                 // In MSDN2 documentation there's no internal here
4646                 protected internal virtual void OnRowContextMenuStripChanged (DataGridViewRowEventArgs e)
4647                 {
4648                         DataGridViewRowEventHandler eh = (DataGridViewRowEventHandler)(Events [RowContextMenuStripChangedEvent]);
4649                         if (eh != null) eh (this, e);
4650                 }
4651
4652                 protected virtual void OnRowContextMenuStripNeeded (DataGridViewRowContextMenuStripNeededEventArgs e)
4653                 {
4654                         DataGridViewRowContextMenuStripNeededEventHandler eh = (DataGridViewRowContextMenuStripNeededEventHandler)(Events [RowContextMenuStripNeededEvent]);
4655                         if (eh != null) eh (this, e);
4656                 }
4657
4658                 protected internal virtual void OnRowDefaultCellStyleChanged (DataGridViewRowEventArgs e)
4659                 {
4660                         DataGridViewRowEventHandler eh = (DataGridViewRowEventHandler)(Events [RowDefaultCellStyleChangedEvent]);
4661                         if (eh != null) eh (this, e);
4662                 }
4663
4664                 protected virtual void OnRowDirtyStateNeeded (QuestionEventArgs e)
4665                 {
4666                         QuestionEventHandler eh = (QuestionEventHandler)(Events [RowDirtyStateNeededEvent]);
4667                         if (eh != null) eh (this, e);
4668                 }
4669
4670                 protected virtual void OnRowDividerDoubleClick (DataGridViewRowDividerDoubleClickEventArgs e)
4671                 {
4672                         DataGridViewRowDividerDoubleClickEventHandler eh = (DataGridViewRowDividerDoubleClickEventHandler)(Events [RowDividerDoubleClickEvent]);
4673                         if (eh != null) eh (this, e);
4674                 }
4675
4676                 protected virtual void OnRowDividerHeightChanged (DataGridViewRowEventArgs e)
4677                 {
4678                         DataGridViewRowEventHandler eh = (DataGridViewRowEventHandler)(Events [RowDividerHeightChangedEvent]);
4679                         if (eh != null) eh (this, e);
4680                 }
4681
4682                 protected virtual void OnRowEnter (DataGridViewCellEventArgs e)
4683                 {
4684                         DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [RowEnterEvent]);
4685                         if (eh != null) eh (this, e);
4686                 }
4687
4688                 protected internal virtual void OnRowErrorTextChanged (DataGridViewRowEventArgs e)
4689                 {
4690                         DataGridViewRowEventHandler eh = (DataGridViewRowEventHandler)(Events [RowErrorTextChangedEvent]);
4691                         if (eh != null) eh (this, e);
4692                 }
4693
4694                 protected virtual void OnRowErrorTextNeeded (DataGridViewRowErrorTextNeededEventArgs e)
4695                 {
4696                         DataGridViewRowErrorTextNeededEventHandler eh = (DataGridViewRowErrorTextNeededEventHandler)(Events [RowErrorTextNeededEvent]);
4697                         if (eh != null) eh (this, e);
4698                 }
4699
4700                 protected internal virtual void OnRowHeaderCellChanged (DataGridViewRowEventArgs e)
4701                 {
4702                         DataGridViewRowEventHandler eh = (DataGridViewRowEventHandler)(Events [RowHeaderCellChangedEvent]);
4703                         if (eh != null) eh (this, e);
4704                 }
4705
4706                 protected virtual void OnRowHeaderMouseClick (DataGridViewCellMouseEventArgs e)
4707                 {
4708                         DataGridViewCellMouseEventHandler eh = (DataGridViewCellMouseEventHandler)(Events [RowHeaderMouseClickEvent]);
4709                         if (eh != null) eh (this, e);
4710                 }
4711
4712                 protected virtual void OnRowHeaderMouseDoubleClick (DataGridViewCellMouseEventArgs e)
4713                 {
4714                         DataGridViewCellMouseEventHandler eh = (DataGridViewCellMouseEventHandler)(Events [RowHeaderMouseDoubleClickEvent]);
4715                         if (eh != null) eh (this, e);
4716                 }
4717
4718                 protected virtual void OnRowHeadersBorderStyleChanged (EventArgs e)
4719                 {
4720                         EventHandler eh = (EventHandler)(Events [RowHeadersBorderStyleChangedEvent]);
4721                         if (eh != null) eh (this, e);
4722                 }
4723
4724                 protected virtual void OnRowHeadersDefaultCellStyleChanged (EventArgs e)
4725                 {
4726                         EventHandler eh = (EventHandler)(Events [RowHeadersDefaultCellStyleChangedEvent]);
4727                         if (eh != null) eh (this, e);
4728                 }
4729
4730                 protected virtual void OnRowHeadersWidthChanged (EventArgs e)
4731                 {
4732                         EventHandler eh = (EventHandler)(Events [RowHeadersWidthChangedEvent]);
4733                         if (eh != null) eh (this, e);
4734                 }
4735
4736                 protected virtual void OnRowHeadersWidthSizeModeChanged (DataGridViewAutoSizeModeEventArgs e)
4737                 {
4738                         DataGridViewAutoSizeModeEventHandler eh = (DataGridViewAutoSizeModeEventHandler)(Events [RowHeadersWidthSizeModeChangedEvent]);
4739                         if (eh != null) eh (this, e);
4740                 }
4741
4742                 protected internal virtual void OnRowHeightChanged (DataGridViewRowEventArgs e)
4743                 {
4744                         DataGridViewRowEventHandler eh = (DataGridViewRowEventHandler)(Events [RowHeightChangedEvent]);
4745                         if (eh != null) eh (this, e);
4746                 }
4747
4748                 protected virtual void OnRowHeightInfoNeeded (DataGridViewRowHeightInfoNeededEventArgs e)
4749                 {
4750                         DataGridViewRowHeightInfoNeededEventHandler eh = (DataGridViewRowHeightInfoNeededEventHandler)(Events [RowHeightInfoNeededEvent]);
4751                         if (eh != null) eh (this, e);
4752                 }
4753
4754                 protected virtual void OnRowHeightInfoPushed (DataGridViewRowHeightInfoPushedEventArgs e)
4755                 {
4756                         DataGridViewRowHeightInfoPushedEventHandler eh = (DataGridViewRowHeightInfoPushedEventHandler)(Events [RowHeightInfoPushedEvent]);
4757                         if (eh != null) eh (this, e);
4758                 }
4759
4760                 protected virtual void OnRowLeave (DataGridViewCellEventArgs e)
4761                 {
4762                         DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [RowLeaveEvent]);
4763                         if (eh != null) eh (this, e);
4764                 }
4765
4766                 protected internal virtual void OnRowMinimumHeightChanged (DataGridViewRowEventArgs e)
4767                 {
4768                         DataGridViewRowEventHandler eh = (DataGridViewRowEventHandler)(Events [RowMinimumHeightChangedEvent]);
4769                         if (eh != null) eh (this, e);
4770                 }
4771
4772                 protected internal virtual void OnRowPostPaint (DataGridViewRowPostPaintEventArgs e)
4773                 {
4774                         DataGridViewRowPostPaintEventHandler eh = (DataGridViewRowPostPaintEventHandler)(Events [RowPostPaintEvent]);
4775                         if (eh != null) eh (this, e);
4776                 }
4777
4778                 protected internal virtual void OnRowPrePaint (DataGridViewRowPrePaintEventArgs e)
4779                 {
4780                         DataGridViewRowPrePaintEventHandler eh = (DataGridViewRowPrePaintEventHandler)(Events [RowPrePaintEvent]);
4781                         if (eh != null) eh (this, e);
4782                 }
4783
4784                 internal void OnRowsAddedInternal (DataGridViewRowsAddedEventArgs e)
4785                 {
4786                         Invalidate ();
4787                         OnRowsAdded (e);
4788                 }
4789
4790                 protected internal virtual void OnRowsAdded (DataGridViewRowsAddedEventArgs e)
4791                 {
4792                         DataGridViewRowsAddedEventHandler eh = (DataGridViewRowsAddedEventHandler)(Events [RowsAddedEvent]);
4793                         if (eh != null) eh (this, e);
4794                 }
4795
4796                 protected virtual void OnRowsDefaultCellStyleChanged (EventArgs e)
4797                 {
4798                         EventHandler eh = (EventHandler)(Events [RowsDefaultCellStyleChangedEvent]);
4799                         if (eh != null) eh (this, e);
4800                 }
4801
4802                 internal void OnRowsRemovedInternal (DataGridViewRowsRemovedEventArgs e)
4803                 {
4804                         if (selected_rows != null)
4805                                 selected_rows.InternalClear ();
4806                         if (selected_columns != null)
4807                                 selected_columns.InternalClear ();
4808
4809                         if (Rows.Count > 0 && Columns.Count > 0 && currentCell != null &&
4810                             currentCell.RowIndex >= e.RowIndex)
4811                                 MoveCurrentCell (0, Math.Min (e.RowIndex, Rows.Count - 2), true, false, false, true);
4812                         Invalidate ();
4813                         OnRowsRemoved (e);
4814                 }
4815
4816                 protected virtual void OnRowsRemoved (DataGridViewRowsRemovedEventArgs e)
4817                 {
4818                         DataGridViewRowsRemovedEventHandler eh = (DataGridViewRowsRemovedEventHandler)(Events [RowsRemovedEvent]);
4819                         if (eh != null) eh (this, e);
4820                 }
4821
4822                 protected internal virtual void OnRowStateChanged (int rowIndex, DataGridViewRowStateChangedEventArgs e)
4823                 {
4824                         DataGridViewRowStateChangedEventHandler eh = (DataGridViewRowStateChangedEventHandler)(Events [RowStateChangedEvent]);
4825                         if (eh != null) eh (this, e);
4826                 }
4827
4828                 protected virtual void OnRowUnshared (DataGridViewRowEventArgs e)
4829                 {
4830                         DataGridViewRowEventHandler eh = (DataGridViewRowEventHandler)(Events [RowUnsharedEvent]);
4831                         if (eh != null) eh (this, e);
4832                 }
4833
4834                 protected virtual void OnRowValidated (DataGridViewCellEventArgs e)
4835                 {
4836                         DataGridViewCellEventHandler eh = (DataGridViewCellEventHandler)(Events [RowValidatedEvent]);
4837                         if (eh != null) eh (this, e);
4838                 }
4839
4840                 protected virtual void OnRowValidating (DataGridViewCellCancelEventArgs e)
4841                 {
4842                         DataGridViewCellCancelEventHandler eh = (DataGridViewCellCancelEventHandler)(Events [RowValidatingEvent]);
4843                         if (eh != null) eh (this, e);
4844                 }
4845
4846                 protected virtual void OnScroll (ScrollEventArgs e)
4847                 {
4848                         ScrollEventHandler eh = (ScrollEventHandler)(Events [ScrollEvent]);
4849                         if (eh != null) eh (this, e);
4850                 }
4851
4852                 protected virtual void OnSelectionChanged (EventArgs e)
4853                 {
4854                         EventHandler eh = (EventHandler)(Events [SelectionChangedEvent]);
4855                         if (eh != null) eh (this, e);
4856                 }
4857
4858                 protected virtual void OnSortCompare (DataGridViewSortCompareEventArgs e) {
4859                         DataGridViewSortCompareEventHandler eh = (DataGridViewSortCompareEventHandler)(Events [SortCompareEvent]);
4860                         if (eh != null) eh (this, e);
4861                 }
4862
4863                 protected virtual void OnSorted (EventArgs e)
4864                 {
4865                         EventHandler eh = (EventHandler)(Events [SortedEvent]);
4866                         if (eh != null) eh (this, e);
4867                 }
4868
4869                 protected virtual void OnUserAddedRow (DataGridViewRowEventArgs e)
4870                 {
4871                         editing_row = null;
4872                         PrepareEditingRow (false, false);
4873
4874                         e = new DataGridViewRowEventArgs (editing_row);
4875
4876                         DataGridViewRowEventHandler eh = (DataGridViewRowEventHandler)(Events [UserAddedRowEvent]);
4877                         if (eh != null) eh (this, e);
4878                 }
4879
4880                 protected virtual void OnUserDeletedRow (DataGridViewRowEventArgs e)
4881                 {
4882                         DataGridViewRowEventHandler eh = (DataGridViewRowEventHandler)(Events [UserDeletedRowEvent]);
4883                         if (eh != null) eh (this, e);
4884
4885                 }
4886
4887                 protected virtual void OnUserDeletingRow (DataGridViewRowCancelEventArgs e)
4888                 {
4889                         DataGridViewRowCancelEventHandler eh = (DataGridViewRowCancelEventHandler)(Events [UserDeletingRowEvent]);
4890                         if (eh != null) eh (this, e);
4891                 }
4892
4893                 protected override void OnValidating (CancelEventArgs e)
4894                 {
4895                         base.OnValidating(e);
4896                 }
4897
4898                 protected override void OnVisibleChanged (EventArgs e)
4899                 {
4900                         base.OnVisibleChanged(e);
4901                 }
4902
4903                 protected virtual void PaintBackground (Graphics graphics, Rectangle clipBounds, Rectangle gridBounds)
4904                 {
4905                         graphics.FillRectangle (ThemeEngine.Current.ResPool.GetSolidBrush (backgroundColor), gridBounds);
4906                 }
4907
4908                 protected bool ProcessAKey (Keys keyData)
4909                 {
4910                         if (!MultiSelect)
4911                                 return false;
4912
4913                         if ((keyData & Keys.Control) == Keys.Control) {
4914                                 SelectAll ();
4915                                 return true;
4916                         }
4917
4918                         return false;
4919                 }
4920
4921                 protected virtual bool ProcessDataGridViewKey (KeyEventArgs e)
4922                 {
4923                         switch (e.KeyData & ~Keys.Modifiers) {
4924                                 case Keys.A:
4925                                         return ProcessAKey (e.KeyData);
4926                                 case Keys.Delete:
4927                                         return ProcessDeleteKey (e.KeyData);
4928                                 case Keys.Down:
4929                                         return ProcessDownKey (e.KeyData);
4930                                 case Keys.Escape:
4931                                         return ProcessEscapeKey (e.KeyData);
4932                                 case Keys.End:
4933                                         return ProcessEndKey (e.KeyData);
4934                                 case Keys.Enter:
4935                                         return ProcessEnterKey (e.KeyData);
4936                                 case Keys.F2:
4937                                         return ProcessF2Key (e.KeyData);
4938                                 case Keys.Home:
4939                                         return ProcessHomeKey (e.KeyData);
4940                                 case Keys.Left:
4941                                         return ProcessLeftKey (e.KeyData);
4942                                 case Keys.Next:
4943                                         return ProcessNextKey (e.KeyData);
4944                                 case Keys.Prior:
4945                                         return ProcessPriorKey (e.KeyData);
4946                                 case Keys.Right:
4947                                         return ProcessRightKey (e.KeyData);
4948                                 case Keys.Space:
4949                                         return ProcessSpaceKey (e.KeyData);
4950                                 case Keys.Tab:
4951                                         return ProcessTabKey (e.KeyData);
4952                                 case Keys.Up:
4953                                         return ProcessUpKey (e.KeyData);
4954                                 case Keys.D0:
4955                                 case Keys.NumPad0:
4956                                         return ProcessZeroKey (e.KeyData);
4957                         }
4958
4959                         return false;
4960                 }
4961
4962                 protected bool ProcessDeleteKey (Keys keyData)
4963                 {
4964                         if (!allowUserToDeleteRows || SelectedRows.Count == 0)
4965                                 return false;
4966
4967                         int index = Math.Max (selected_row - SelectedRows.Count + 1, 0);
4968
4969                         for (int i = SelectedRows.Count - 1; i >= 0; i--) {
4970                                 DataGridViewRow row = SelectedRows[i];
4971
4972                                 if (row.IsNewRow)
4973                                         continue;
4974
4975                                 if (hover_cell != null && hover_cell.OwningRow == row)
4976                                         hover_cell = null;
4977
4978                                 if (DataSource != null && DataSource is DataSet)
4979                                         (DataSource as DataSet).Tables[dataMember].Rows.RemoveAt (row.Index);
4980                                 else
4981                                         Rows.RemoveAt (row.Index);
4982                         }
4983
4984                         return true;
4985                 }
4986
4987                 protected override bool ProcessDialogKey (Keys keyData)
4988                 {
4989                         switch (keyData) {
4990                                 case Keys.Tab:
4991                                 case Keys.Shift | Keys.Tab:
4992                                         if (standardTab)
4993                                                 return base.ProcessDialogKey (keyData & ~Keys.Control);
4994
4995                                         if (ProcessDataGridViewKey (new KeyEventArgs (keyData)))
4996                                                 return true;
4997
4998                                         break;
4999                                 case Keys.Control | Keys.Tab:
5000                                 case Keys.Control | Keys.Shift | Keys.Tab:
5001                                         if (!standardTab)
5002                                                 return base.ProcessDialogKey (keyData & ~Keys.Control);
5003
5004                                         if (ProcessDataGridViewKey (new KeyEventArgs (keyData)))
5005                                                 return true;
5006
5007                                         break;
5008                                 case Keys.Enter:
5009                                 case Keys.Escape:
5010                                         if (ProcessDataGridViewKey (new KeyEventArgs (keyData)))
5011                                                 return true;
5012
5013                                         break;
5014                         }
5015
5016                         return base.ProcessDialogKey(keyData);
5017                 }
5018
5019                 protected bool ProcessDownKey (Keys keyData)
5020                 {
5021                         int current_row = CurrentCellAddress.Y;
5022
5023                         if (current_row < Rows.Count - 1) {
5024                                 // Move to the last cell in the column
5025                                 if ((keyData & Keys.Control) == Keys.Control)
5026                                         MoveCurrentCell (CurrentCellAddress.X, Rows.Count - 1, true, (keyData & Keys.Control) == Keys.Control, (keyData & Keys.Shift) == Keys.Shift, true);
5027                                 // Move one cell down
5028                                 else
5029                                         MoveCurrentCell (CurrentCellAddress.X, current_row + 1, true, (keyData & Keys.Control) == Keys.Control, (keyData & Keys.Shift) == Keys.Shift, true);
5030
5031                                 return true;
5032                         }
5033
5034                         return false;
5035                 }
5036
5037                 protected bool ProcessEndKey (Keys keyData)
5038                 {
5039                         int disp_index = ColumnIndexToDisplayIndex (currentCellAddress.X);
5040
5041                         // Move to the last cell in the control
5042                         if ((keyData & Keys.Control) == Keys.Control) {
5043                                 MoveCurrentCell (ColumnDisplayIndexToIndex (Columns.Count - 1), Rows.Count - 1, true, (keyData & Keys.Control) == Keys.Control, (keyData & Keys.Shift) == Keys.Shift, true);
5044                                 return true;
5045                         }
5046
5047                         // Move to the last cell in the row
5048                         if (disp_index < Columns.Count - 1) {
5049                                 MoveCurrentCell (ColumnDisplayIndexToIndex (Columns.Count - 1), currentCellAddress.Y, true, (keyData & Keys.Control) == Keys.Control, (keyData & Keys.Shift) == Keys.Shift, true);
5050                                 return true;
5051                         }
5052
5053                         return false;
5054                 }
5055
5056                 protected bool ProcessEnterKey (Keys keyData)
5057                 {
5058                         if (ProcessDownKey (keyData))
5059                                 return true;
5060
5061                         // ProcessDown may fail if we are on the last row,
5062                         // but Enter should still EndEdit if this is the last row
5063                         EndEdit ();
5064                         return true;
5065                 }
5066
5067                 protected bool ProcessEscapeKey (Keys keyData)
5068                 {
5069                         if (!IsCurrentCellInEditMode)
5070                                 return false;
5071
5072                         CancelEdit ();
5073                         return true;
5074                 }
5075
5076                 protected bool ProcessF2Key (Keys keyData)
5077                 {
5078                         if (editMode == DataGridViewEditMode.EditOnF2 || editMode == DataGridViewEditMode.EditOnKeystrokeOrF2) {
5079                                 BeginEdit (true);
5080                                 return true;
5081                         }
5082
5083                         return false;
5084                 }
5085
5086                 protected bool ProcessHomeKey (Keys keyData)
5087                 {
5088                         int disp_index = ColumnIndexToDisplayIndex (currentCellAddress.X);
5089
5090                         // Move to the first cell in the control
5091                         if ((keyData & Keys.Control) == Keys.Control) {
5092                                 MoveCurrentCell (ColumnDisplayIndexToIndex (0), 0, true, (keyData & Keys.Control) == Keys.Control, (keyData & Keys.Shift) == Keys.Shift, true);
5093                                 return true;
5094                         }
5095
5096                         // Move to the first cell in the row
5097                         if (disp_index > 0) {
5098                                 MoveCurrentCell (ColumnDisplayIndexToIndex (0), currentCellAddress.Y, true, (keyData & Keys.Control) == Keys.Control, (keyData & Keys.Shift) == Keys.Shift, true);
5099                                 return true;
5100                         }
5101
5102                         return false;
5103                 }
5104
5105                 [MonoTODO ("What does insert do?")]
5106                 protected bool ProcessInsertKey (Keys keyData)
5107                 {
5108                         return false;
5109                 }
5110
5111                 protected override bool ProcessKeyEventArgs (ref Message m)
5112                 {
5113                         DataGridViewCell cell = CurrentCell;
5114
5115                         if (cell != null)
5116                                 if (cell.KeyEntersEditMode (new KeyEventArgs ((Keys)m.WParam.ToInt32 ())))
5117                                         BeginEdit (true);
5118
5119                         return base.ProcessKeyEventArgs (ref m);
5120                 }
5121
5122                 protected override bool ProcessKeyPreview (ref Message m)
5123                 {
5124                         if ((Msg)m.Msg == Msg.WM_KEYDOWN && (IsCurrentCellInEditMode || m.HWnd == horizontalScrollBar.Handle || m.HWnd == verticalScrollBar.Handle)) {
5125                                 KeyEventArgs e = new KeyEventArgs ((Keys)m.WParam.ToInt32 ());
5126
5127                                 IDataGridViewEditingControl ctrl = (IDataGridViewEditingControl)EditingControlInternal;
5128
5129                                 if (ctrl != null)
5130                                         if (ctrl.EditingControlWantsInputKey (e.KeyData, false))
5131                                                 return false;
5132
5133                                 switch (e.KeyData) {
5134                                         case Keys.Escape:
5135                                         case Keys.Down:
5136                                         case Keys.Up:
5137                                         case Keys.Left:
5138                                         case Keys.Right:
5139                                         case Keys.Tab:
5140                                         case Keys.Prior:
5141                                         case Keys.Next:
5142                                                 return ProcessDataGridViewKey (e);
5143                                 }
5144                         }
5145
5146                         return base.ProcessKeyPreview (ref m);
5147                 }
5148
5149                 protected bool ProcessLeftKey (Keys keyData)
5150                 {
5151                         int disp_index = ColumnIndexToDisplayIndex (currentCellAddress.X);
5152
5153                         if (disp_index > 0) {
5154                                 // Move to the first cell in the row
5155                                 if ((keyData & Keys.Control) == Keys.Control)
5156                                         MoveCurrentCell (ColumnDisplayIndexToIndex (0), currentCellAddress.Y, true, (keyData & Keys.Control) == Keys.Control, (keyData & Keys.Shift) == Keys.Shift, true);
5157                                 // Move one cell to the left
5158                                 else
5159                                         MoveCurrentCell (ColumnDisplayIndexToIndex (disp_index - 1), currentCellAddress.Y, true, (keyData & Keys.Control) == Keys.Control, (keyData & Keys.Shift) == Keys.Shift, true);
5160
5161                                 return true;
5162                         }
5163
5164                         return false;
5165                 }
5166
5167                 // Page Down
5168                 protected bool ProcessNextKey (Keys keyData)
5169                 {
5170                         int current_row = CurrentCellAddress.Y;
5171
5172                         if (current_row < Rows.Count - 1) {
5173                                 // Move one "page" of cells down
5174                                 int new_row = Math.Min (Rows.Count - 1, current_row + DisplayedRowCount (false));
5175
5176                                 MoveCurrentCell (CurrentCellAddress.X, new_row, true, (keyData & Keys.Control) == Keys.Control, (keyData & Keys.Shift) == Keys.Shift, true);
5177
5178                                 return true;
5179                         }
5180
5181                         return false;
5182                 }
5183
5184                 // Page Up
5185                 protected bool ProcessPriorKey (Keys keyData)
5186                 {
5187                         int current_row = CurrentCellAddress.Y;
5188
5189                         if (current_row > 0) {
5190                                 // Move one "page" of cells up
5191                                 int new_row = Math.Max (0, current_row - DisplayedRowCount (false));
5192
5193                                 MoveCurrentCell (CurrentCellAddress.X, new_row, true, (keyData & Keys.Control) == Keys.Control, (keyData & Keys.Shift) == Keys.Shift, true);
5194
5195                                 return true;
5196                         }
5197
5198                         return false;
5199                 }
5200
5201                 protected bool ProcessRightKey (Keys keyData)
5202                 {
5203                         int disp_index = ColumnIndexToDisplayIndex (currentCellAddress.X);
5204
5205                         if (disp_index < Columns.Count - 1) {
5206                                 // Move to the last cell in the row
5207                                 if ((keyData & Keys.Control) == Keys.Control)
5208                                         MoveCurrentCell (ColumnDisplayIndexToIndex (Columns.Count - 1), currentCellAddress.Y, true, (keyData & Keys.Control) == Keys.Control, (keyData & Keys.Shift) == Keys.Shift, true);
5209                                 // Move one cell to the right
5210                                 else
5211                                         MoveCurrentCell (ColumnDisplayIndexToIndex (disp_index + 1), currentCellAddress.Y, true, (keyData & Keys.Control) == Keys.Control, (keyData & Keys.Shift) == Keys.Shift, true);
5212
5213                                 return true;
5214                         }
5215
5216                         return false;
5217                 }
5218
5219                 protected bool ProcessSpaceKey (Keys keyData)
5220                 {
5221                         if ((keyData & Keys.Shift) == Keys.Shift) {
5222                                 if (selectionMode == DataGridViewSelectionMode.RowHeaderSelect) {
5223                                         SetSelectedRowCore (CurrentCellAddress.Y, true);
5224                                         InvalidateRow (CurrentCellAddress.Y);
5225                                         return true;
5226                                 }
5227                                 if (selectionMode == DataGridViewSelectionMode.ColumnHeaderSelect) {
5228                                         SetSelectedColumnCore (CurrentCellAddress.X, true);
5229                                         InvalidateColumn (CurrentCellAddress.X);
5230                                         return true;
5231                                 }
5232                         }
5233
5234                         if (CurrentCell is DataGridViewButtonCell || CurrentCell is DataGridViewLinkCell || CurrentCell is DataGridViewCheckBoxCell) {
5235                                 DataGridViewCellEventArgs e = new DataGridViewCellEventArgs (CurrentCell.ColumnIndex, CurrentCell.RowIndex);
5236
5237                                 OnCellClick (e);
5238                                 OnCellContentClick (e);
5239
5240                                 if (CurrentCell is DataGridViewButtonCell)
5241                                         (CurrentCell as DataGridViewButtonCell).OnClickInternal (e);
5242                                 if (CurrentCell is DataGridViewCheckBoxCell)
5243                                         (CurrentCell as DataGridViewCheckBoxCell).OnClickInternal (e);
5244
5245                                 return true;
5246                         }
5247
5248                         return false;
5249                 }
5250
5251                 protected bool ProcessTabKey (Keys keyData)
5252                 {
5253                         Form f = FindForm ();
5254
5255                         if (f != null)
5256                                 f.ActivateFocusCues ();
5257
5258                         int disp_index = ColumnIndexToDisplayIndex (currentCellAddress.X);
5259
5260                         // Tab goes forward
5261                         // Shift-tab goes backwards
5262                         if ((keyData & Keys.Shift) == Keys.Shift) {
5263                                 if (disp_index > 0) {
5264                                         // Move one cell to the left
5265                                         MoveCurrentCell (ColumnDisplayIndexToIndex (disp_index - 1), currentCellAddress.Y, true, (keyData & Keys.Control) == Keys.Control, false, true);
5266                                         return true;
5267                                 } else if (currentCellAddress.Y > 0) {
5268                                         // Move to the last cell in the previous row
5269                                         MoveCurrentCell (ColumnDisplayIndexToIndex (Columns.Count - 1), currentCellAddress.Y - 1, true, false, false, true);
5270                                         return true;
5271                                 }
5272
5273                         } else {
5274                                 if (disp_index < Columns.Count - 1) {
5275                                         // Move one cell to the right
5276                                         MoveCurrentCell (ColumnDisplayIndexToIndex (disp_index + 1), currentCellAddress.Y, true, (keyData & Keys.Control) == Keys.Control, false, true);
5277
5278                                         return true;
5279                                 } else if (currentCellAddress.Y < Rows.Count - 1) {
5280                                         // Move to the first cell in the next row
5281                                         MoveCurrentCell (ColumnDisplayIndexToIndex (0), currentCellAddress.Y + 1, true, false, false, true);
5282                                         return true;
5283                                 }
5284
5285
5286                         }
5287
5288                         return false;
5289                 }
5290
5291                 protected bool ProcessUpKey (Keys keyData)
5292                 {
5293                         int current_row = CurrentCellAddress.Y;
5294
5295                         if (current_row > 0) {
5296                                 // Move to the first cell in the column
5297                                 if ((keyData & Keys.Control) == Keys.Control)
5298                                         MoveCurrentCell (CurrentCellAddress.X, 0, true, (keyData & Keys.Control) == Keys.Control, (keyData & Keys.Shift) == Keys.Shift, true);
5299                                 // Move one cell up
5300                                 else
5301                                         MoveCurrentCell (CurrentCellAddress.X, current_row - 1, true, (keyData & Keys.Control) == Keys.Control, (keyData & Keys.Shift) == Keys.Shift, true);
5302
5303                                 return true;
5304                         }
5305
5306                         return false;
5307                 }
5308
5309                 protected bool ProcessZeroKey (Keys keyData)
5310                 {
5311                         if ((keyData & Keys.Control) == Keys.Control && CurrentCell.EditType != null) {
5312                                 CurrentCell.Value = DBNull.Value;
5313                                 InvalidateCell (CurrentCell);
5314                                 return true;
5315                         }
5316
5317                         return false;
5318                 }
5319
5320                 protected override void SetBoundsCore (int x, int y, int width, int height, BoundsSpecified specified) {
5321                         base.SetBoundsCore(x, y, width, height, specified);
5322                 }
5323
5324                 [MonoTODO ("Does not use validateCurrentCell")]
5325                 protected virtual bool SetCurrentCellAddressCore (int columnIndex, int rowIndex, bool setAnchorCellAddress, bool validateCurrentCell, bool throughMouseClick)
5326                 {
5327                         if ((columnIndex < 0 || columnIndex > Columns.Count - 1) && rowIndex != -1)
5328                                 throw new ArgumentOutOfRangeException ("columnIndex");
5329                         if ((rowIndex < 0 || rowIndex > Rows.Count - 1) && columnIndex != -1)
5330                                 throw new ArgumentOutOfRangeException ("rowIndex");
5331
5332                         DataGridViewCell cell;
5333
5334                         if (columnIndex == -1 && rowIndex == -1)
5335                                 cell = null;
5336                         else
5337                                 cell = Rows.SharedRow (rowIndex).Cells[columnIndex];
5338
5339                         if (cell != null && !cell.Visible)
5340                                 throw new InvalidOperationException ("cell is not visible");
5341
5342                         if (setAnchorCellAddress)
5343                                 anchor_cell = new Point (columnIndex, rowIndex);
5344
5345                         if (cell != currentCell) {
5346                                 if (currentCell != null) {
5347                                         if (currentCell.IsInEditMode)
5348                                                 EndEdit ();
5349                                         OnCellLeave (new DataGridViewCellEventArgs(currentCell.ColumnIndex, currentCell.RowIndex));
5350                                         OnRowLeave (new DataGridViewCellEventArgs (currentCell.ColumnIndex, currentCell.RowIndex));
5351                                 }
5352
5353                                 currentCell = cell;
5354                                 currentCellAddress = new Point (columnIndex, rowIndex);
5355
5356                                 UpdateBindingPosition (currentCell.RowIndex);
5357                                 OnRowEnter (new DataGridViewCellEventArgs (cell.ColumnIndex, cell.RowIndex));
5358                                 OnCellEnter (new DataGridViewCellEventArgs(cell.ColumnIndex, cell.RowIndex));
5359                                 OnCurrentCellChanged (EventArgs.Empty);
5360                                 if (throughMouseClick && editMode == DataGridViewEditMode.EditOnEnter)
5361                                         BeginEdit (true);
5362                         } else {
5363                                 if (throughMouseClick)
5364                                         BeginEdit (true);
5365                         }
5366
5367                         return true;
5368                 }
5369
5370                 protected virtual void SetSelectedCellCore (int columnIndex, int rowIndex, bool selected) {
5371                         rows [rowIndex].Cells [columnIndex].Selected = selected;
5372
5373                         OnSelectionChanged (EventArgs.Empty);
5374                 }
5375
5376                 internal void SetSelectedColumnCoreInternal (int columnIndex, bool selected) {
5377                         SetSelectedColumnCore (columnIndex, selected);
5378                 }
5379
5380                 protected virtual void SetSelectedColumnCore (int columnIndex, bool selected) {
5381                         if (selectionMode != DataGridViewSelectionMode.ColumnHeaderSelect && selectionMode != DataGridViewSelectionMode.FullColumnSelect)
5382                                 return;
5383
5384                         DataGridViewColumn col = columns [columnIndex];
5385
5386                         col.SelectedInternal = selected;
5387
5388                         if (selected_columns == null)
5389                                 selected_columns = new DataGridViewSelectedColumnCollection ();
5390
5391                         if (!selected && selected_columns.Contains (col)) {
5392                                 selected_columns.InternalRemove (col);
5393                         } else if (selected && !selected_columns.Contains (col)) {
5394                                 selected_columns.InternalAdd (col);
5395                         }
5396
5397                         Invalidate();
5398                 }
5399
5400                 internal void SetSelectedRowCoreInternal (int rowIndex, bool selected) {
5401                         SetSelectedRowCore (rowIndex, selected);
5402                 }
5403
5404                 protected virtual void SetSelectedRowCore (int rowIndex, bool selected) {
5405                         DataGridViewRow row = rows [rowIndex];
5406
5407                         row.SelectedInternal = selected;
5408
5409                         if (selected_rows == null)
5410                                 selected_rows = new DataGridViewSelectedRowCollection (this);
5411
5412                         if (!selected && selected_rows.Contains (row)) {
5413                                 selected_rows.InternalRemove (row);
5414                         } else if (selected && !selected_rows.Contains (row)) {
5415                                 selected_rows.InternalAdd (row);
5416                         }
5417
5418                         Invalidate();
5419                 }
5420
5421                 protected override void WndProc (ref Message m)
5422                 {
5423                         base.WndProc (ref m);
5424                 }
5425
5426                 internal void InternalOnCellClick (DataGridViewCellEventArgs e)
5427                 {
5428                         OnCellClick (e);
5429                 }
5430
5431                 internal void InternalOnCellContentClick (DataGridViewCellEventArgs e)
5432                 {
5433                         OnCellContentClick (e);
5434                 }
5435
5436                 internal void InternalOnCellContentDoubleClick (DataGridViewCellEventArgs e)
5437                 {
5438                         OnCellContentDoubleClick (e);
5439                 }
5440
5441                 internal void InternalOnCellValueChanged (DataGridViewCellEventArgs e)
5442                 {
5443                         OnCellValueChanged (e);
5444                 }
5445
5446                 internal void InternalOnDataError (DataGridViewDataErrorEventArgs e)
5447                 {
5448                         /////////////// false? ////////////
5449                         OnDataError (false, e);
5450                 }
5451
5452                 internal void InternalOnMouseWheel (MouseEventArgs e)
5453                 {
5454                         OnMouseWheel (e);
5455                 }
5456
5457                 internal void OnHScrollBarScroll (object sender, ScrollEventArgs e)
5458                 {
5459                         horizontalScrollingOffset = e.NewValue;
5460                         int left = 0;
5461
5462                         for (int index = 0; index < Columns.Count; index++) {
5463                                 DataGridViewColumn col = Columns[index];
5464
5465                                 if (e.NewValue < left + col.Width) {
5466                                         if (first_col_index != index) {
5467                                                 first_col_index = index;
5468                                                 Invalidate ();
5469                                                 OnScroll (e);
5470                                         }
5471
5472                                         return;
5473                                 }
5474
5475                                 left += col.Width;
5476                         }
5477                 }
5478
5479                 internal void OnVScrollBarScroll (object sender, ScrollEventArgs e)
5480                 {
5481                         verticalScrollingOffset = e.NewValue;
5482                         if (Rows.Count == 0)
5483                                 return;
5484
5485                         int top = 0;
5486
5487                         for (int index = 0; index < Rows.Count; index++) {
5488                                 DataGridViewRow row = Rows[index];
5489                                 if (e.NewValue < top + row.Height) {
5490                                         if (first_row_index != index) {
5491                                                 first_row_index = index;
5492                                                 Invalidate ();
5493                                                 OnScroll (e);
5494                                         }
5495
5496                                         return;
5497                                 }
5498
5499                                 top += row.Height;
5500                         }
5501
5502                         first_row_index = Rows.Count - DisplayedRowCount (false);
5503                         Invalidate ();
5504                         OnScroll (e);
5505                 }
5506
5507                 internal void RaiseCellStyleChanged (DataGridViewCellEventArgs e) {
5508                         OnCellStyleChanged(e);
5509                 }
5510
5511                 internal void OnColumnCollectionChanged (object sender, CollectionChangeEventArgs e) {
5512                         switch (e.Action) {
5513                                 case CollectionChangeAction.Add:
5514                                         OnColumnAddedInternal(new DataGridViewColumnEventArgs(e.Element as DataGridViewColumn));
5515                                         break;
5516                                 case CollectionChangeAction.Remove:
5517                                         OnColumnRemovedInternal(new DataGridViewColumnEventArgs(e.Element as DataGridViewColumn));
5518                                         break;
5519                                 case CollectionChangeAction.Refresh:
5520                                         break;
5521                         }
5522                 }
5523
5524                 // Resizes all columns according to their AutoResizeMode property.
5525                 // First all the columns that aren't Filled are resized, then we resize all the Filled columns.
5526                 internal void AutoResizeColumnsInternal ()
5527                 {
5528                         for (int i = 0; i < Columns.Count; i++)
5529                                 AutoResizeColumnInternal (i, Columns [i].InheritedAutoSizeMode);
5530
5531                         AutoFillColumnsInternal ();
5532                 }
5533
5534                 internal void AutoFillColumnsInternal ()
5535                 {
5536                         float totalFillWeight = 0;
5537                         int FillCount = 0; // The number of columns that has AutoSizeMode.Fill set
5538                         int spaceLeft = ClientSize.Width - (verticalScrollBar.VisibleInternal ? verticalScrollBar.Width : 0);
5539
5540                         if (RowHeadersVisible) {
5541                                 spaceLeft -= RowHeadersWidth;
5542                         }
5543                         spaceLeft -= BorderWidth * 2;
5544
5545                         int [] fixed_widths = new int [Columns.Count];
5546                         int [] new_widths = new int [Columns.Count];
5547                         bool fixed_any = false;
5548
5549                         for (int i = 0; i < Columns.Count; i++) {
5550                                 DataGridViewColumn col = Columns [i];
5551
5552                                 switch (col.InheritedAutoSizeMode) {
5553                                 case DataGridViewAutoSizeColumnMode.Fill:
5554                                         FillCount++;
5555                                         totalFillWeight += col.FillWeight;
5556                                         break;
5557                                 case DataGridViewAutoSizeColumnMode.AllCellsExceptHeader:
5558                                 case DataGridViewAutoSizeColumnMode.AllCells:
5559                                 case DataGridViewAutoSizeColumnMode.DisplayedCells:
5560                                 case DataGridViewAutoSizeColumnMode.DisplayedCellsExceptHeader:
5561                                 case DataGridViewAutoSizeColumnMode.None:
5562                                 case DataGridViewAutoSizeColumnMode.NotSet:
5563                                         spaceLeft -= Columns [i].Width;
5564                                         break;
5565                                 }
5566                         }
5567
5568                         spaceLeft = Math.Max (0, spaceLeft);
5569
5570                         do {
5571                                 fixed_any = false;
5572                                 for (int i = 0; i < columns.Count; i++) {
5573                                         DataGridViewColumn col = Columns [i];
5574                                         int width;
5575
5576                                         if (col.InheritedAutoSizeMode != DataGridViewAutoSizeColumnMode.Fill)
5577                                                 continue;
5578
5579                                         if (fixed_widths [i] != 0)
5580                                                 continue;
5581
5582                                         width = (totalFillWeight == 0) ? 0 : (int) Math.Round (spaceLeft * (col.FillWeight / totalFillWeight), 0);
5583
5584                                         if (width < 0)
5585                                                 width = 0;
5586
5587                                         if (width < col.MinimumWidth) {
5588                                                 width = col.MinimumWidth;
5589                                                 fixed_widths [i] = width;
5590                                                 fixed_any = true;
5591                                                 spaceLeft -= width;
5592                                                 totalFillWeight -= col.FillWeight;
5593                                         }
5594
5595                                         new_widths [i] = width;
5596                                 }
5597                         } while (fixed_any);
5598
5599                         for (int i = 0; i < columns.Count; i++) {
5600                                 if (Columns [i].InheritedAutoSizeMode != DataGridViewAutoSizeColumnMode.Fill)
5601                                         continue;
5602
5603                                 Columns [i].Width = new_widths [i];
5604                         }
5605                 }
5606
5607                 internal void AutoResizeColumnInternal (int columnIndex, DataGridViewAutoSizeColumnMode mode)
5608                 {
5609                         // http://msdn2.microsoft.com/en-us/library/ms171605.aspx
5610                         int size = 0;
5611
5612                         DataGridViewColumn col = Columns [columnIndex];
5613
5614                         switch (mode) {
5615                         case DataGridViewAutoSizeColumnMode.Fill:
5616                                 return;
5617                         case DataGridViewAutoSizeColumnMode.AllCellsExceptHeader:
5618                         case DataGridViewAutoSizeColumnMode.AllCells:
5619                         case DataGridViewAutoSizeColumnMode.DisplayedCells:
5620                         case DataGridViewAutoSizeColumnMode.DisplayedCellsExceptHeader:
5621                                 size  = Math.Max (CalculateColumnCellWidth (columnIndex, col.InheritedAutoSizeMode),
5622                                                   col.HeaderCell.ContentBounds.Width);
5623                                 break;
5624                         case DataGridViewAutoSizeColumnMode.ColumnHeader:
5625                                 size = col.HeaderCell.ContentBounds.Width;
5626                                 break;
5627                         default:
5628                                 size = col.Width;
5629                                 break;
5630                         }
5631
5632                         if (size < 0)
5633                                 size = 0;
5634                         if (size < col.MinimumWidth)
5635                                 size = col.MinimumWidth;
5636
5637                         col.Width = size;
5638                 }
5639
5640                 internal int CalculateColumnCellWidth (int index, DataGridViewAutoSizeColumnMode mode)
5641                 {
5642                         int first_row = 0;
5643                         int result = 0;
5644                         bool only_visible = false;
5645
5646                         if (mode == DataGridViewAutoSizeColumnMode.DisplayedCellsExceptHeader ||
5647                                 mode == DataGridViewAutoSizeColumnMode.AllCellsExceptHeader)
5648                                 first_row++;
5649
5650                         only_visible = (mode == DataGridViewAutoSizeColumnMode.DisplayedCells || mode == DataGridViewAutoSizeColumnMode.DisplayedCellsExceptHeader);
5651
5652                         for (int i = first_row; i < Rows.Count; i++) {
5653                                 if (only_visible) {
5654                                         Rectangle row_rect = this.GetRowDisplayRectangle (i, false);
5655                                         if (!ClientRectangle.IntersectsWith (row_rect))
5656                                                 continue;
5657                                 }
5658
5659                                 int cell_width = Rows[i].Cells[index].PreferredSize.Width;
5660
5661                                 result = Math.Max (result, cell_width);
5662                         }
5663
5664                         return result;
5665                 }
5666
5667                 Rectangle GetHeaderCellBounds (DataGridViewHeaderCell cell)
5668                 {
5669                         Rectangle bounds = new Rectangle (ClientRectangle.Location, cell.Size);
5670                         if (cell is DataGridViewColumnHeaderCell) {
5671                                 if (RowHeadersVisible)
5672                                         bounds.X += RowHeadersWidth;
5673                                 List<DataGridViewColumn> sortedColumns = columns.ColumnDisplayIndexSortedArrayList;
5674                                 for (int index = first_col_index; index < sortedColumns.Count; index++) {
5675                                         DataGridViewColumn column = sortedColumns [index];
5676                                         if (column.Index == cell.ColumnIndex)
5677                                                 break;
5678                                         bounds.X += column.Width;
5679                                 }
5680                         } else {
5681                                 if (ColumnHeadersVisible)
5682                                         bounds.Y += ColumnHeadersHeight;
5683                                 for (int index = first_row_index; index < Rows.Count; index++) {
5684                                         DataGridViewRow row = GetRowInternal (index);
5685                                         if (row.HeaderCell == cell)
5686                                                 break;
5687                                         bounds.Y += row.Height;
5688                                 }
5689                         }
5690                         return bounds;
5691                 }
5692
5693                 internal void PrepareEditingRow (bool cell_changed, bool column_changed)
5694                 {
5695                         bool show = false;
5696
5697                         show = ColumnCount > 0 && AllowUserToAddRows;
5698
5699                         if (!show && editing_row != null) {
5700                                 Rows.RemoveInternal (editing_row);
5701                                 editing_row = null;
5702                         } else if (show) {
5703                                 if (editing_row != null) {
5704                                         if (cell_changed) {
5705                                                 // The row changed, it's no longer an editing row.
5706                                                 editing_row = null;
5707                                         } else if (column_changed) {
5708                                                 // The number of columns has changed, we need a new editing row.
5709                                                 Rows.RemoveInternal (editing_row);
5710                                                 editing_row = null;
5711                                         }
5712                                 }
5713                                 if (editing_row == null) {
5714                                         editing_row = RowTemplateFull;
5715                                         Rows.AddInternal (editing_row, false);
5716                                 }
5717                         }
5718
5719
5720                 }
5721
5722                 internal DataGridViewRow EditingRow {
5723                         get { return editing_row; }
5724                 }
5725
5726                 private void BindIList (IList list) {
5727                         if (autoGenerateColumns) {
5728                                 // Stuff from a DataSet
5729                                 if (list is DataView) {
5730                                         DataView dataView = (DataView) list;
5731                                         DataTable table = dataView.Table;
5732
5733                                         foreach (DataColumn dataColumn in table.Columns) {
5734                                                 DataGridViewColumn col = CreateColumnByType (dataColumn.DataType);
5735
5736                                                 col.Name = dataColumn.ColumnName;
5737                                                 col.DataPropertyName = dataColumn.ColumnName;
5738                                                 col.SetIsDataBound (true);
5739                                                 col.ValueType = dataColumn.DataType;
5740                                                 col.AutoGenerated = true;
5741
5742                                                 columns.Add (col);
5743                                         }
5744                                 }
5745                                 // Its a generic something or other, like a BindingList<T>, so
5746                                 // we can figure out the type from the generic type
5747                                 else if (list.GetType ().GetGenericArguments ().Length > 0) {
5748                                         GenerateColumnsFromType (list.GetType ().GetGenericArguments ()[0]);
5749                                 }
5750                                 // Its a normal array/collection type thing
5751                                 else if (list.GetType ().IsArray) {
5752                                         GenerateColumnsFromType (list.GetType ().GetElementType ());
5753                                 } else if (list is BindingSource && (list as BindingSource).item_type != null) {
5754                                         foreach (PropertyDescriptor property in TypeDescriptor.GetProperties ((list as BindingSource).item_type)) {
5755                                                 DataGridViewColumn col = CreateColumnByType (property.PropertyType);
5756                                                 col.Name = property.DisplayName;
5757                                                 col.ReadOnly = property.IsReadOnly;
5758                                                 col.AutoGenerated = true;
5759                                                 columns.Add (col);
5760                                         }
5761
5762                                         AllowUserToAddRows = (list as BindingSource).AllowNew;
5763                                 }
5764                         }
5765
5766                         // Subscribe to the dataset's change notification
5767                         if (list is DataView) {
5768                                 (list as DataView).ListChanged += OnListChanged;
5769                                 (list as DataView).Table.ColumnChanged += OnTableColumnChanged;
5770                                 (list as DataView).Table.TableCleared += OnTableCleared;
5771                         }
5772
5773                         // Add the rows
5774                         foreach (object element in list)
5775                                 AddBoundRow (element);
5776                 }
5777
5778                 private void OnBindingSourceDataSourceChanged (object sender, EventArgs args)
5779                 {
5780                         ClearBinding();
5781                         DoBinding();
5782                 }
5783
5784                 private void AddBoundRow (object element)
5785                 {
5786                         // Don't add rows if there are no columns
5787                         if (ColumnCount == 0)
5788                                 return;
5789
5790                         DataGridViewRow row = (DataGridViewRow)RowTemplateFull;
5791                         rows.InternalAdd (row);
5792
5793                         PropertyDescriptorCollection properties = TypeDescriptor.GetProperties (element);
5794
5795                         foreach (PropertyDescriptor property in properties) {
5796                                 if (property.PropertyType == typeof (IBindingList))
5797                                         continue;
5798
5799                                 // We do it this way because there may not be a column
5800                                 // for every cell, ignore cells with no column
5801                                 DataGridViewCell cell = row.Cells.GetBoundCell (property.Name);
5802
5803                                 if (cell == null)
5804                                         continue;
5805
5806                                 cell.valuex = property.GetValue (element);
5807                                 cell.valueType = property.PropertyType;
5808                         }
5809                 }
5810
5811                 private void GenerateColumnsFromType (Type type)
5812                 {
5813                         foreach (PropertyDescriptor property in TypeDescriptor.GetProperties (type)) {
5814                                 // This keeps out things like arrays
5815                                 if ((typeof(ICollection).IsAssignableFrom (property.PropertyType)))
5816                                         continue;
5817
5818                                 DataGridViewColumn col = CreateColumnByType (property.PropertyType);
5819                                 col.Name = property.DisplayName;
5820                                 col.DataPropertyName = property.DisplayName;
5821                                 col.ReadOnly = property.IsReadOnly;
5822                                 col.SetIsDataBound (true);
5823                                 col.ValueType = property.PropertyType;
5824                                 col.AutoGenerated = true;
5825                                 columns.Add (col);
5826                         }
5827                 }
5828
5829                 private DataGridViewColumn CreateColumnByType (Type type)
5830                 {
5831                         if (type == typeof (bool))
5832                                 return new DataGridViewCheckBoxColumn ();
5833
5834                         return new DataGridViewTextBoxColumn ();
5835                 }
5836
5837                 private void ClearBinding ()
5838                 {
5839                         columns.ClearAutoGeneratedColumns ();
5840                         rows.Clear ();
5841                         PrepareEditingRow (false, true);
5842
5843                         if (dataSource != null) {
5844                                 if (dataSource is DataSet) {
5845                                         (dataSource as DataSet).Tables.CollectionChanged -= OnDataSetTableChanged;
5846
5847                                         DataTable dt = (dataSource as DataSet).Tables[dataMember];
5848
5849                                         if (dt != null) {
5850                                                 DataView dv = dt.DefaultView;
5851
5852                                                 if (dv != null) {
5853                                                         (dv as DataView).Table.ColumnChanged -= OnTableColumnChanged;
5854                                                         (dv as DataView).ListChanged -= OnListChanged;
5855                                                 }
5856                                         }
5857                                 } else if (dataSource is DataView) {
5858                                         (dataSource as DataView).ListChanged -= OnListChanged;
5859                                         (dataSource as DataView).Table.ColumnChanged -= OnTableColumnChanged;
5860                                 } else if (dataSource is DataTable)
5861                                         ((dataSource as IListSource).GetList () as DataView).ListChanged -= OnListChanged;
5862
5863                                 if (dataSource is IBindingList)
5864                                         (dataSource as IBindingList).ListChanged -= OnListChanged;
5865                                 if (dataSource is BindingSource)
5866                                         (dataSource as BindingSource).DataSourceChanged -= OnBindingSourceDataSourceChanged;
5867                         }
5868                 }
5869
5870                 private void DoBinding ()
5871                 {
5872                         /* 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:
5873                          - the System.Collections.IList interface, including one-dimensional arrays.
5874                          - the System.ComponentModel.IListSource interface, such as the System.Data.DataTable and System.Data.DataSet classes.
5875                          - the System.ComponentModel.IBindingList interface, such as the System.ComponentModel.Collections.BindingList<> class.
5876                          - the System.ComponentModel.IBindingListView interface, such as the System.Windows.Forms.BindingSource class.
5877                         */
5878
5879                         if (dataSource != null) {
5880                                 object value = dataSource;
5881
5882                                 // DataBinding
5883                                 if (value is DataSet && string.IsNullOrEmpty (dataMember)) {
5884                                         Invalidate ();
5885                                         return;
5886                                 }
5887                                 if (value is DataSet) {
5888                                         (value as DataSet).Tables.CollectionChanged += OnDataSetTableChanged;
5889                                         value = (value as DataSet).Tables[dataMember];
5890                                 }
5891
5892                                 if (value is BindingSource)
5893                                         BindBindingSource (value as BindingSource);
5894                                 else if (value is IBindingListView)
5895                                         BindIBindingListView (value as IBindingListView);
5896                                 else if (value is IBindingList)
5897                                         BindIBindingList (value as IBindingList);
5898                                 else if (value is IList)
5899                                         BindIList (value as IList);
5900                                 else if (value is IListSource)
5901                                         BindIListSource (value as IListSource);
5902
5903                                 OnDataBindingComplete (new DataGridViewBindingCompleteEventArgs (ListChangedType.Reset));
5904                         }
5905
5906                         if (Rows.Count > 0 && Columns.Count > 0)
5907                                 MoveCurrentCell (0, 0, true, false, false, false);
5908                         PerformLayout();
5909                         Invalidate ();
5910                 }
5911
5912                 private void BindBindingSource (BindingSource bindingSource)
5913                 {
5914                         BindIList (bindingSource.List);
5915                         bindingSource.ListChanged += OnBindingSourceDataSourceChanged;
5916                         bindingSource.DataSourceChanged += OnBindingSourceDataSourceChanged;
5917                 }
5918
5919                 private void BindIListSource (IListSource list) {
5920                         BindIList (list.GetList());
5921                 }
5922
5923                 private void BindIBindingList (IBindingList list) {
5924                         BindIList (list);
5925                         list.ListChanged += OnListChanged;
5926                 }
5927
5928                 private void BindIBindingListView (IBindingListView list) {
5929                         BindIList(list);
5930                 }
5931
5932                 private void MoveCurrentCell (int x, int y, bool select, bool isControl, bool isShift, bool scroll)
5933                 {
5934                         SetCurrentCellAddressCore (x, y, true, false, false);
5935
5936                         bool full_row_selected = Rows.SharedRow(CurrentCellAddress.Y).Selected;
5937                         bool full_col_selected = Columns[CurrentCellAddress.X].Selected;
5938
5939                         // Move Selection
5940                         DataGridViewSelectionMode mode = selectionMode;
5941
5942                         // If we are row header select and we clicked a row header, use full row
5943                         if (mode == DataGridViewSelectionMode.RowHeaderSelect && (x == -1 || (full_row_selected && CurrentCellAddress.X == x)))
5944                                 mode = DataGridViewSelectionMode.FullRowSelect;
5945                         else if (mode == DataGridViewSelectionMode.RowHeaderSelect)
5946                                 mode = DataGridViewSelectionMode.CellSelect;
5947
5948                         // If we are col header select and we clicked a col header, use full col
5949                         if (mode == DataGridViewSelectionMode.ColumnHeaderSelect && (y == -1 || (full_col_selected && CurrentCellAddress.Y == y)))
5950                                 mode = DataGridViewSelectionMode.FullColumnSelect;
5951                         else if (mode == DataGridViewSelectionMode.ColumnHeaderSelect)
5952                                 mode = DataGridViewSelectionMode.CellSelect;
5953
5954                         // If the current cell isn't visible, scroll to it
5955                         if (scroll) {
5956                                 int disp_x = ColumnIndexToDisplayIndex (x);
5957
5958                                 if (disp_x < first_col_index) {
5959                                         int delta_x = 0;
5960
5961                                         if (disp_x == 0)
5962                                                 delta_x = horizontalScrollBar.Value;
5963                                         else
5964                                                 for (int i = disp_x; i < first_col_index; i++)
5965                                                         delta_x += Columns[ColumnDisplayIndexToIndex (i)].Width;
5966
5967                                         horizontalScrollBar.SafeValueSet (horizontalScrollBar.Value - delta_x);
5968                                         OnHScrollBarScroll (this, new ScrollEventArgs (ScrollEventType.ThumbPosition, horizontalScrollBar.Value));
5969                                 }
5970
5971                                 int disp_y = y;
5972                                 int displayedRowsCount = DisplayedRowCount (false);
5973                                 int delta_y = 0;
5974
5975                                 if (disp_y < first_row_index) {
5976                                         if (disp_y == 0)
5977                                                 delta_y = verticalScrollBar.Value;
5978                                         else
5979                                                 for (int i = disp_y; i < first_row_index; i++)
5980                                                         delta_y += GetRowInternal (i).Height;
5981
5982                                         verticalScrollBar.SafeValueSet (verticalScrollBar.Value - delta_y);
5983                                         OnVScrollBarScroll (this, new ScrollEventArgs (ScrollEventType.ThumbPosition, verticalScrollBar.Value));
5984                                 } else if (disp_y > first_row_index + displayedRowsCount - 1) {
5985                                         if (disp_y == Rows.Count - 1)
5986                                                 delta_y = verticalScrollBar.Maximum - verticalScrollBar.Value;
5987                                         else
5988                                                 for (int i = first_row_index + displayedRowsCount - 1; i < disp_y; i++)
5989                                                         delta_y += GetRowInternal (i).Height;
5990
5991                                         verticalScrollBar.SafeValueSet (verticalScrollBar.Value + delta_y);
5992                                         OnVScrollBarScroll (this, new ScrollEventArgs (ScrollEventType.ThumbPosition, verticalScrollBar.Value));
5993                                 }
5994                         }
5995
5996                         if (!select)
5997                                 return;
5998
5999                         // Clear old selection unless multi-selecting
6000                         if (!isShift)
6001                                 ClearSelection ();
6002
6003                         switch (mode) {
6004                                 case DataGridViewSelectionMode.CellSelect:
6005                                         SetSelectedCellCore (x, y, true);
6006                                         break;
6007                                 case DataGridViewSelectionMode.FullRowSelect:
6008                                         SetSelectedRowCore (y, true);
6009                                         break;
6010                                 case DataGridViewSelectionMode.FullColumnSelect:
6011                                         SetSelectedColumnCore (x, true);
6012                                         break;
6013                         }
6014
6015                         Invalidate ();
6016                 }
6017
6018                 private int ColumnIndexToDisplayIndex (int index)
6019                 {
6020                         return Columns[index].DisplayIndex;
6021                 }
6022
6023                 private int ColumnDisplayIndexToIndex (int index)
6024                 {
6025                         return Columns.ColumnDisplayIndexSortedArrayList[index].Index;
6026                 }
6027
6028                 private void OnListChanged (object sender, ListChangedEventArgs args)
6029                 {
6030                         switch (args.ListChangedType) {
6031                                 case ListChangedType.ItemAdded:
6032                                         AddBoundRow ((sender as IBindingList)[args.NewIndex]);
6033                                         break;
6034                                 case ListChangedType.ItemDeleted:
6035                                         Rows.RemoveAt (args.NewIndex);
6036                                         break;
6037                                 default:
6038                                         ClearBinding ();
6039                                         DoBinding ();
6040                                         break;
6041                         }
6042
6043                         Invalidate ();
6044                 }
6045
6046                 private void OnTableColumnChanged (object sender, DataColumnChangeEventArgs e)
6047                 {
6048                         ClearBinding ();
6049                         DoBinding ();
6050                 }
6051
6052                 private void OnDataSetTableChanged (object sender, CollectionChangeEventArgs e)
6053                 {
6054                         ClearBinding ();
6055                         DoBinding ();
6056                 }
6057
6058                 private void OnTableCleared (object sender, DataTableClearEventArgs e)
6059                 {
6060                         ClearBinding ();
6061                         DoBinding ();
6062                 }
6063
6064                 private bool MouseOverColumnResize (int col, int mousex)
6065                 {
6066                         if (!allowUserToResizeColumns)
6067                                 return false;
6068
6069                         Rectangle col_bounds = GetCellDisplayRectangle (col, 0, false);
6070
6071                         if (mousex >= col_bounds.Right - 4 && mousex <= col_bounds.Right)
6072                                 return true;
6073
6074                         return false;
6075                 }
6076
6077                 private bool MouseOverRowResize (int row, int mousey)
6078                 {
6079                         if (!allowUserToResizeRows)
6080                                 return false;
6081
6082                         Rectangle row_bounds = GetCellDisplayRectangle (0, row, false);
6083
6084                         if (mousey >= row_bounds.Bottom - 4 && mousey <= row_bounds.Bottom)
6085                                 return true;
6086
6087                         return false;
6088                 }
6089
6090                 private void DrawVerticalResizeLine (int x)
6091                 {
6092                         Rectangle splitter = new Rectangle (x, Bounds.Y + 3 + (ColumnHeadersVisible ? ColumnHeadersHeight : 0), 1, Bounds.Height - 3 - (ColumnHeadersVisible ? ColumnHeadersHeight : 0));
6093                         XplatUI.DrawReversibleRectangle (Handle, splitter, 2);
6094                 }
6095
6096                 private void DrawHorizontalResizeLine (int y)
6097                 {
6098                         Rectangle splitter = new Rectangle (Bounds.X + 3 + (RowHeadersVisible ? RowHeadersWidth : 0), y, Bounds.Width - 3 + (RowHeadersVisible ? RowHeadersWidth : 0), 1);
6099                         XplatUI.DrawReversibleRectangle (Handle, splitter, 2);
6100                 }
6101
6102                 #region Stuff for ToolTips
6103                 private void MouseEnteredErrorIcon (DataGridViewCell item)
6104                 {
6105                         tooltip_currently_showing = item;
6106                         ToolTipTimer.Start ();
6107                 }
6108
6109                 private void MouseLeftErrorIcon (DataGridViewCell item)
6110                 {
6111                         ToolTipTimer.Stop ();
6112                         ToolTipWindow.Hide (this);
6113                         tooltip_currently_showing = null;
6114                 }
6115
6116                 private Timer ToolTipTimer {
6117                         get {
6118                                 if (tooltip_timer == null) {
6119                                         tooltip_timer = new Timer ();
6120                                         tooltip_timer.Enabled = false;
6121                                         tooltip_timer.Interval = 500;
6122                                         tooltip_timer.Tick += new EventHandler (ToolTipTimer_Tick);
6123                                 }
6124
6125                                 return tooltip_timer;
6126                         }
6127                 }
6128
6129                 private ToolTip ToolTipWindow {
6130                         get {
6131                                 if (tooltip_window == null)
6132                                         tooltip_window = new ToolTip ();
6133
6134                                 return tooltip_window;
6135                         }
6136                 }
6137
6138                 private void ToolTipTimer_Tick (object o, EventArgs args)
6139                 {
6140                         string tooltip = tooltip_currently_showing.ErrorText;
6141
6142                         if (!string.IsNullOrEmpty (tooltip))
6143                                 ToolTipWindow.Present (this, tooltip);
6144
6145                         ToolTipTimer.Stop ();
6146                 }
6147                 #endregion
6148
6149                 private class ColumnSorter : IComparer
6150                 {
6151                         int column;
6152                         int direction = 1;
6153                         bool numeric_sort;
6154
6155                         public ColumnSorter (DataGridViewColumn column, ListSortDirection direction, bool numeric)
6156                         {
6157                                 this.column = column.Index;
6158                                 this.numeric_sort = numeric;
6159
6160                                 if (direction == ListSortDirection.Descending)
6161                                         this.direction = -1;
6162                         }
6163
6164                         #region IComparer Members
6165                         public int Compare (object x, object y)
6166                         {
6167                                 DataGridViewRow row1 = (DataGridViewRow)x;
6168                                 DataGridViewRow row2 = (DataGridViewRow)y;
6169
6170                                 if (row1.Cells[column].ValueType == typeof (DateTime) && row2.Cells[column].ValueType == typeof (DateTime))
6171                                         return DateTime.Compare ((DateTime)row1.Cells[column].valuex, (DateTime)row2.Cells[column].valuex) * direction;
6172
6173                                 object val1 = row1.Cells[column].FormattedValue;
6174                                 object val2 = row2.Cells[column].FormattedValue;
6175
6176                                 if (val1 == null && val2 == null)
6177                                         return 0;
6178                                 if (val1 == null)
6179                                         return direction;
6180                                 if (val2 == null)
6181                                         return -1 * direction;
6182
6183                                 if (numeric_sort)
6184                                         return (int)(double.Parse (val1.ToString ()) - double.Parse (val2.ToString ())) * direction;
6185                                 else
6186                                         return string.Compare (val1.ToString (), val2.ToString ()) * direction;
6187                         }
6188                         #endregion
6189                 }
6190
6191                 public sealed class HitTestInfo {
6192
6193                         public static readonly HitTestInfo Nowhere = new HitTestInfo(-1, -1, -1, -1, DataGridViewHitTestType.None);
6194
6195                         private int columnIndex;
6196                         private int columnX;
6197                         private int rowIndex;
6198                         private int rowY;
6199                         private DataGridViewHitTestType type;
6200
6201                         internal HitTestInfo (int columnIndex, int columnX, int rowIndex, int rowY, DataGridViewHitTestType type) {
6202                                 this.columnIndex = columnIndex;
6203                                 this.columnX = columnX;
6204                                 this.rowIndex = rowIndex;
6205                                 this.rowY = rowY;
6206                                 this.type = type;
6207                         }
6208
6209                         public int ColumnIndex {
6210                                 get { return columnIndex; }
6211                         }
6212
6213                         public int ColumnX {
6214                                 get { return columnX; }
6215                         }
6216
6217                         public int RowIndex {
6218                                 get { return rowIndex; }
6219                         }
6220
6221                         public int RowY {
6222                                 get { return rowY; }
6223                         }
6224
6225                         public DataGridViewHitTestType Type {
6226                                 get { return type; }
6227                         }
6228
6229                         public override bool Equals (object value) {
6230                                 if (value is HitTestInfo) {
6231                                         HitTestInfo aux = (HitTestInfo) value;
6232                                         if (aux.columnIndex == columnIndex && aux.columnX == columnX && aux.rowIndex == rowIndex && aux.rowY == rowY && aux.type == type) {
6233                                                 return true;
6234                                         }
6235                                 }
6236                                 return false;
6237                         }
6238
6239                         public override int GetHashCode () {
6240                                 return base.GetHashCode();
6241                         }
6242
6243                         public override string ToString () {
6244                                 return string.Format ("Type:{0}, Column:{1}, Row:{2}", type, columnIndex, rowIndex);
6245                         }
6246
6247                 }
6248
6249                 [ComVisible (false)]
6250                 public class DataGridViewControlCollection : Control.ControlCollection
6251                 {
6252                         private DataGridView owner;
6253
6254                         public DataGridViewControlCollection (DataGridView owner) : base (owner)
6255                         {
6256                                 this.owner = owner;
6257                         }
6258
6259                         public override void Clear ()
6260                         {
6261                                 //
6262                                 // This is severely buggy, just as MS' implementation is.
6263                                 //
6264                                 for (int i = 0; i < Count; i++) {
6265                                         Remove (this [i]);
6266                                 }
6267                         }
6268
6269                         public void CopyTo (Control [] array, int index)
6270                         {
6271                                 base.CopyTo (array, index);
6272                         }
6273
6274                         public void Insert (int index, Control value)
6275                         {
6276                                 throw new NotSupportedException ();
6277                         }
6278
6279                         public override void Remove (Control value)
6280                         {
6281                                 if (value == owner.horizontalScrollBar)
6282                                         return;
6283
6284                                 if (value == owner.verticalScrollBar)
6285                                         return;
6286
6287                                 if (value == owner.editingControl)
6288                                         return;
6289
6290                                 base.Remove (value);
6291                         }
6292
6293                         internal void RemoveInternal (Control value)
6294                         {
6295                                 base.Remove (value);
6296                         }
6297
6298
6299                 }
6300
6301                 [ComVisibleAttribute(true)]
6302                 protected class DataGridViewAccessibleObject : ControlAccessibleObject {
6303
6304                         public DataGridViewAccessibleObject (DataGridView owner) : base (owner){
6305                         }
6306
6307                         public override AccessibleRole Role {
6308                                 get { return base.Role; }
6309                         }
6310
6311                         public override string Name {
6312                                 get { return base.Name; }
6313                         }
6314
6315                         public override AccessibleObject GetChild (int index) {
6316                                 return base.GetChild(index);
6317                         }
6318
6319                         public override int GetChildCount () {
6320                                 return base.GetChildCount();
6321                         }
6322
6323                         public override AccessibleObject GetFocused () {
6324                                 return base.GetFocused();
6325                         }
6326
6327                         public override AccessibleObject GetSelected () {
6328                                 return base.GetSelected();
6329                         }
6330
6331                         public override AccessibleObject HitTest (int x, int y) {
6332                                 return base.HitTest(x, y);
6333                         }
6334
6335                         public override AccessibleObject Navigate( AccessibleNavigation navigationDirection) {
6336                                 return base.Navigate(navigationDirection);
6337                         }
6338
6339                 }
6340
6341                 [ComVisible (true)]
6342                 protected class DataGridViewTopRowAccessibleObject : AccessibleObject
6343                 {
6344                         #region Constructors
6345                         public DataGridViewTopRowAccessibleObject ()
6346                         {
6347                         }
6348
6349                         public DataGridViewTopRowAccessibleObject (DataGridView owner)
6350                         {
6351                                 this.owner = owner;
6352                         }
6353                         #endregion
6354
6355                         #region Public Methods
6356                         public override AccessibleObject GetChild (int index)
6357                         {
6358                                 return base.GetChild (index);
6359                         }
6360
6361                         public override int GetChildCount ()
6362                         {
6363                                 return base.GetChildCount ();
6364                         }
6365
6366                         public override AccessibleObject Navigate (AccessibleNavigation navigationDirection)
6367                         {
6368                                 return base.Navigate (navigationDirection);
6369                         }
6370                         #endregion
6371
6372                         #region Public Properties
6373                         public override Rectangle Bounds {
6374                                 get { return base.Bounds; }
6375                         }
6376
6377                         public override string Name {
6378                                 get { return base.Name; }
6379                         }
6380
6381                         public DataGridView Owner {
6382                                 get { return (DataGridView)owner; }
6383                                 set {
6384                                         if (owner != null)
6385                                                 throw new InvalidOperationException ("owner has already been set");
6386
6387                                         owner = value;
6388                                 }
6389                         }
6390
6391                         public override AccessibleObject Parent {
6392                                 get { return base.Parent; }
6393                         }
6394
6395                         public override AccessibleRole Role {
6396                                 get { return base.Role; }
6397                         }
6398
6399                         public override string Value {
6400                                 get { return base.Value; }
6401                         }
6402                         #endregion
6403                 }
6404         }
6405 }
6406
6407 #endif