mcs/class/System.Web/System.Web.UI.WebControls/GridView.cs

   1 //
   2 // System.Web.UI.WebControls.GridView.cs
   3 //
   4 // Authors:
   5 //      Lluis Sanchez Gual (lluis@novell.com)
   6 //
   7 // (C) 2005 Novell, Inc (http://www.novell.com)
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28
  29 #if NET_2_0
  30
  31 using System;
  32 using System.Collections;
  33 using System.Collections.Specialized;
  34 using System.ComponentModel;
  35 using System.Web.UI;
  36 using System.Security.Permissions;
  37 using System.Text;
  38 using System.IO;
  39 using System.Reflection;
  40
  41 namespace System.Web.UI.WebControls
  42 {
  43         [SupportsEventValidation]
  44         [DesignerAttribute ("System.Web.UI.Design.WebControls.GridViewDesigner, " + Consts.AssemblySystem_Design, "System.ComponentModel.Design.IDesigner")]
  45         [ControlValuePropertyAttribute ("SelectedValue")]
  46         [DefaultEventAttribute ("SelectedIndexChanged")]
  47         [AspNetHostingPermissionAttribute (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  48         [AspNetHostingPermissionAttribute (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  49         public class GridView: CompositeDataBoundControl, ICallbackEventHandler, ICallbackContainer, IPostBackEventHandler, IPostBackContainer
  50         {
  51                 Table table;
  52                 GridViewRowCollection rows;
  53                 GridViewRow bottomPagerRow;
  54                 GridViewRow topPagerRow;
  55
  56                 IOrderedDictionary currentEditRowKeys;
  57                 IOrderedDictionary currentEditNewValues;
  58                 IOrderedDictionary currentEditOldValues;
  59
  60                 ITemplate pagerTemplate;
  61                 ITemplate emptyDataTemplate;
  62
  63                 PropertyDescriptor[] cachedKeyProperties;
  64
  65                 // View state
  66                 DataControlFieldCollection columns;
  67                 PagerSettings pagerSettings;
  68
  69                 TableStyle style;
  70                 TableItemStyle alternatingRowStyle;
  71                 TableItemStyle editRowStyle;
  72                 TableItemStyle emptyDataRowStyle;
  73                 TableItemStyle footerStyle;
  74                 TableItemStyle headerStyle;
  75                 TableItemStyle pagerStyle;
  76                 TableItemStyle rowStyle;
  77                 TableItemStyle selectedRowStyle;
  78                 DataKeyArray keys;
  79                 DataKey oldEditValues;
  80                 AutoGeneratedFieldProperties[] autoFieldProperties;
  81                 string [] dataKeyNames = null;
  82                 readonly string[] emptyKeys = new string[0];
  83
  84                 private static readonly object PageIndexChangedEvent = new object();
  85                 private static readonly object PageIndexChangingEvent = new object();
  86                 private static readonly object RowCancelingEditEvent = new object();
  87                 private static readonly object RowCommandEvent = new object();
  88                 private static readonly object RowCreatedEvent = new object();
  89                 private static readonly object RowDataBoundEvent = new object();
  90                 private static readonly object RowDeletedEvent = new object();
  91                 private static readonly object RowDeletingEvent = new object();
  92                 private static readonly object RowEditingEvent = new object();
  93                 private static readonly object RowUpdatedEvent = new object();
  94                 private static readonly object RowUpdatingEvent = new object();
  95                 private static readonly object SelectedIndexChangedEvent = new object();
  96                 private static readonly object SelectedIndexChangingEvent = new object();
  97                 private static readonly object SortedEvent = new object();
  98                 private static readonly object SortingEvent = new object();
  99
 100                 // Control state
 101                 int pageIndex;
 102                 int pageCount = 0;
 103                 int selectedIndex = -1;
 104                 int editIndex = -1;
 105                 SortDirection sortDirection = SortDirection.Ascending;
 106                 string sortExpression = string.Empty;
 107
 108                 public GridView ()
 109                 {
 110                 }
 111
 112                 public event EventHandler PageIndexChanged {
 113                         add { Events.AddHandler (PageIndexChangedEvent, value); }
 114                         remove { Events.RemoveHandler (PageIndexChangedEvent, value); }
 115                 }
 116
 117                 public event GridViewPageEventHandler PageIndexChanging {
 118                         add { Events.AddHandler (PageIndexChangingEvent, value); }
 119                         remove { Events.RemoveHandler (PageIndexChangingEvent, value); }
 120                 }
 121
 122                 public event GridViewCancelEditEventHandler RowCancelingEdit {
 123                         add { Events.AddHandler (RowCancelingEditEvent, value); }
 124                         remove { Events.RemoveHandler (RowCancelingEditEvent, value); }
 125                 }
 126
 127                 public event GridViewCommandEventHandler RowCommand {
 128                         add { Events.AddHandler (RowCommandEvent, value); }
 129                         remove { Events.RemoveHandler (RowCommandEvent, value); }
 130                 }
 131
 132                 public event GridViewRowEventHandler RowCreated {
 133                         add { Events.AddHandler (RowCreatedEvent, value); }
 134                         remove { Events.RemoveHandler (RowCreatedEvent, value); }
 135                 }
 136
 137                 public event GridViewRowEventHandler RowDataBound {
 138                         add { Events.AddHandler (RowDataBoundEvent, value); }
 139                         remove { Events.RemoveHandler (RowDataBoundEvent, value); }
 140                 }
 141
 142                 public event GridViewDeletedEventHandler RowDeleted {
 143                         add { Events.AddHandler (RowDeletedEvent, value); }
 144                         remove { Events.RemoveHandler (RowDeletedEvent, value); }
 145                 }
 146
 147                 public event GridViewDeleteEventHandler RowDeleting {
 148                         add { Events.AddHandler (RowDeletingEvent, value); }
 149                         remove { Events.RemoveHandler (RowDeletingEvent, value); }
 150                 }
 151
 152                 public event GridViewEditEventHandler RowEditing {
 153                         add { Events.AddHandler (RowEditingEvent, value); }
 154                         remove { Events.RemoveHandler (RowEditingEvent, value); }
 155                 }
 156
 157                 public event GridViewUpdatedEventHandler RowUpdated {
 158                         add { Events.AddHandler (RowUpdatedEvent, value); }
 159                         remove { Events.RemoveHandler (RowUpdatedEvent, value); }
 160                 }
 161
 162                 public event GridViewUpdateEventHandler RowUpdating {
 163                         add { Events.AddHandler (RowUpdatingEvent, value); }
 164                         remove { Events.RemoveHandler (RowUpdatingEvent, value); }
 165                 }
 166
 167                 public event EventHandler SelectedIndexChanged {
 168                         add { Events.AddHandler (SelectedIndexChangedEvent, value); }
 169                         remove { Events.RemoveHandler (SelectedIndexChangedEvent, value); }
 170                 }
 171
 172                 public event GridViewSelectEventHandler SelectedIndexChanging {
 173                         add { Events.AddHandler (SelectedIndexChangingEvent, value); }
 174                         remove { Events.RemoveHandler (SelectedIndexChangingEvent, value); }
 175                 }
 176
 177                 public event EventHandler Sorted {
 178                         add { Events.AddHandler (SortedEvent, value); }
 179                         remove { Events.RemoveHandler (SortedEvent, value); }
 180                 }
 181
 182                 public event GridViewSortEventHandler Sorting {
 183                         add { Events.AddHandler (SortingEvent, value); }
 184                         remove { Events.RemoveHandler (SortingEvent, value); }
 185                 }
 186
 187                 protected virtual void OnPageIndexChanged (EventArgs e)
 188                 {
 189                         if (Events != null) {
 190                                 EventHandler eh = (EventHandler) Events [PageIndexChangedEvent];
 191                                 if (eh != null) eh (this, e);
 192                         }
 193                 }
 194
 195                 protected virtual void OnPageIndexChanging (GridViewPageEventArgs e)
 196                 {
 197                         if (Events != null) {
 198                                 GridViewPageEventHandler eh = (GridViewPageEventHandler) Events [PageIndexChangingEvent];
 199                                 if (eh != null) eh (this, e);
 200                         }
 201                 }
 202
 203                 protected virtual void OnRowCancelingEdit (GridViewCancelEditEventArgs e)
 204                 {
 205                         if (Events != null) {
 206                                 GridViewCancelEditEventHandler eh = (GridViewCancelEditEventHandler) Events [RowCancelingEditEvent];
 207                                 if (eh != null) eh (this, e);
 208                         }
 209                 }
 210
 211                 protected virtual void OnRowCommand (GridViewCommandEventArgs e)
 212                 {
 213                         if (Events != null) {
 214                                 GridViewCommandEventHandler eh = (GridViewCommandEventHandler) Events [RowCommandEvent];
 215                                 if (eh != null) eh (this, e);
 216                         }
 217                 }
 218
 219                 protected virtual void OnRowCreated (GridViewRowEventArgs e)
 220                 {
 221                         if (Events != null) {
 222                                 GridViewRowEventHandler eh = (GridViewRowEventHandler) Events [RowCreatedEvent];
 223                                 if (eh != null) eh (this, e);
 224                         }
 225                 }
 226
 227                 protected virtual void OnRowDataBound (GridViewRowEventArgs e)
 228                 {
 229                         if (Events != null) {
 230                                 GridViewRowEventHandler eh = (GridViewRowEventHandler) Events [RowDataBoundEvent];
 231                                 if (eh != null) eh (this, e);
 232                         }
 233                 }
 234
 235                 protected virtual void OnRowDeleted (GridViewDeletedEventArgs e)
 236                 {
 237                         if (Events != null) {
 238                                 GridViewDeletedEventHandler eh = (GridViewDeletedEventHandler) Events [RowDeletedEvent];
 239                                 if (eh != null) eh (this, e);
 240                         }
 241                 }
 242
 243                 protected virtual void OnRowDeleting (GridViewDeleteEventArgs e)
 244                 {
 245                         if (Events != null) {
 246                                 GridViewDeleteEventHandler eh = (GridViewDeleteEventHandler) Events [RowDeletingEvent];
 247                                 if (eh != null) eh (this, e);
 248                         }
 249                 }
 250
 251                 protected virtual void OnRowEditing (GridViewEditEventArgs e)
 252                 {
 253                         if (Events != null) {
 254                                 GridViewEditEventHandler eh = (GridViewEditEventHandler) Events [RowEditingEvent];
 255                                 if (eh != null) eh (this, e);
 256                         }
 257                 }
 258
 259                 protected virtual void OnRowUpdated (GridViewUpdatedEventArgs e)
 260                 {
 261                         if (Events != null) {
 262                                 GridViewUpdatedEventHandler eh = (GridViewUpdatedEventHandler) Events [RowUpdatedEvent];
 263                                 if (eh != null) eh (this, e);
 264                         }
 265                 }
 266
 267                 protected virtual void OnRowUpdating (GridViewUpdateEventArgs e)
 268                 {
 269                         if (Events != null) {
 270                                 GridViewUpdateEventHandler eh = (GridViewUpdateEventHandler) Events [RowUpdatingEvent];
 271                                 if (eh != null) eh (this, e);
 272                         }
 273                 }
 274
 275                 protected virtual void OnSelectedIndexChanged (EventArgs e)
 276                 {
 277                         if (Events != null) {
 278                                 EventHandler eh = (EventHandler) Events [SelectedIndexChangedEvent];
 279                                 if (eh != null) eh (this, e);
 280                         }
 281                 }
 282
 283                 protected virtual void OnSelectedIndexChanging (GridViewSelectEventArgs e)
 284                 {
 285                         if (Events != null) {
 286                                 GridViewSelectEventHandler eh = (GridViewSelectEventHandler) Events [SelectedIndexChangingEvent];
 287                                 if (eh != null) eh (this, e);
 288                         }
 289                 }
 290
 291                 protected virtual void OnSorted (EventArgs e)
 292                 {
 293                         if (Events != null) {
 294                                 EventHandler eh = (EventHandler) Events [SortedEvent];
 295                                 if (eh != null) eh (this, e);
 296                         }
 297                 }
 298
 299                 protected virtual void OnSorting (GridViewSortEventArgs e)
 300                 {
 301                         if (Events != null) {
 302                                 GridViewSortEventHandler eh = (GridViewSortEventHandler) Events [SortingEvent];
 303                                 if (eh != null) eh (this, e);
 304                         }
 305                 }
 306
 307
 308                 [WebCategoryAttribute ("Paging")]
 309                 [DefaultValueAttribute (false)]
 310                 public virtual bool AllowPaging {
 311                         get {
 312                                 object ob = ViewState ["AllowPaging"];
 313                                 if (ob != null) return (bool) ob;
 314                                 return false;
 315                         }
 316                         set {
 317                                 ViewState ["AllowPaging"] = value;
 318                                 RequireBinding ();
 319                         }
 320                 }
 321
 322                 [WebCategoryAttribute ("Behavior")]
 323                 [DefaultValueAttribute (false)]
 324                 public virtual bool AllowSorting {
 325                         get {
 326                                 object ob = ViewState ["AllowSorting"];
 327                                 if (ob != null) return (bool) ob;
 328                                 return false;
 329                         }
 330                         set {
 331                                 ViewState ["AllowSorting"] = value;
 332                                 RequireBinding ();
 333                         }
 334                 }
 335
 336                 [WebCategoryAttribute ("Styles")]
 337                 [PersistenceMode (PersistenceMode.InnerProperty)]
 338                 [NotifyParentProperty (true)]
 339                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
 340                 public TableItemStyle AlternatingRowStyle {
 341                         get {
 342                                 if (alternatingRowStyle == null) {
 343                                         alternatingRowStyle = new TableItemStyle ();
 344                                         if (IsTrackingViewState)
 345                                                 alternatingRowStyle.TrackViewState();
 346                                 }
 347                                 return alternatingRowStyle;
 348                         }
 349                 }
 350
 351                 [WebCategoryAttribute ("Behavior")]
 352                 [DefaultValueAttribute (false)]
 353                 public virtual bool AutoGenerateEditButton {
 354                         get {
 355                                 object ob = ViewState ["AutoGenerateEditButton"];
 356                                 if (ob != null) return (bool) ob;
 357                                 return false;
 358                         }
 359                         set {
 360                                 ViewState ["AutoGenerateEditButton"] = value;
 361                                 RequireBinding ();
 362                         }
 363                 }
 364
 365                 [WebCategoryAttribute ("Behavior")]
 366                 [DefaultValueAttribute (false)]
 367                 public virtual bool AutoGenerateDeleteButton {
 368                         get {
 369                                 object ob = ViewState ["AutoGenerateDeleteButton"];
 370                                 if (ob != null) return (bool) ob;
 371                                 return false;
 372                         }
 373                         set {
 374                                 ViewState ["AutoGenerateDeleteButton"] = value;
 375                                 RequireBinding ();
 376                         }
 377                 }
 378
 379                 [WebCategoryAttribute ("Behavior")]
 380                 [DefaultValueAttribute (false)]
 381                 public virtual bool AutoGenerateSelectButton {
 382                         get {
 383                                 object ob = ViewState ["AutoGenerateSelectButton"];
 384                                 if (ob != null) return (bool) ob;
 385                                 return false;
 386                         }
 387                         set {
 388                                 ViewState ["AutoGenerateSelectButton"] = value;
 389                                 RequireBinding ();
 390                         }
 391                 }
 392
 393                 [WebCategoryAttribute ("Behavior")]
 394                 [DefaultValueAttribute (true)]
 395                 public virtual bool AutoGenerateColumns {
 396                         get {
 397                                 object ob = ViewState ["AutoGenerateColumns"];
 398                                 if (ob != null) return (bool) ob;
 399                                 return true;
 400                         }
 401                         set {
 402                                 ViewState ["AutoGenerateColumns"] = value;
 403                                 RequireBinding ();
 404                         }
 405                 }
 406
 407                 [UrlPropertyAttribute]
 408                 [WebCategoryAttribute ("Appearance")]
 409                 [DefaultValueAttribute ("")]
 410                 [EditorAttribute ("System.Web.UI.Design.ImageUrlEditor, " + Consts.AssemblySystem_Design, "System.Drawing.Design.UITypeEditor, " + Consts.AssemblySystem_Drawing)]
 411                 public virtual string BackImageUrl {
 412                         get {
 413                                 object ob = ViewState ["BackImageUrl"];
 414                                 if (ob != null) return (string) ob;
 415                                 return string.Empty;
 416                         }
 417                         set {
 418                                 ViewState ["BackImageUrl"] = value;
 419                                 RequireBinding ();
 420                         }
 421                 }
 422
 423                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 424                 [BrowsableAttribute (false)]
 425                 public virtual GridViewRow BottomPagerRow {
 426                         get {
 427                                 EnsureDataBound ();
 428                                 return bottomPagerRow;
 429                         }
 430                 }
 431
 432                 [WebCategoryAttribute ("Accessibility")]
 433                 [DefaultValueAttribute ("")]
 434                 [LocalizableAttribute (true)]
 435                 public virtual string Caption {
 436                         get {
 437                                 object ob = ViewState ["Caption"];
 438                                 if (ob != null) return (string) ob;
 439                                 return string.Empty;
 440                         }
 441                         set {
 442                                 ViewState ["Caption"] = value;
 443                                 RequireBinding ();
 444                         }
 445                 }
 446
 447                 [WebCategoryAttribute ("Accessibility")]
 448                 [DefaultValueAttribute (TableCaptionAlign.NotSet)]
 449                 public virtual TableCaptionAlign CaptionAlign
 450                 {
 451                         get {
 452                                 object o = ViewState ["CaptionAlign"];
 453                                 if(o != null) return (TableCaptionAlign) o;
 454                                 return TableCaptionAlign.NotSet;
 455                         }
 456                         set {
 457                                 ViewState ["CaptionAlign"] = value;
 458                                 RequireBinding ();
 459                         }
 460                 }
 461
 462                 [WebCategoryAttribute ("Layout")]
 463                 [DefaultValueAttribute (-1)]
 464                 public virtual int CellPadding
 465                 {
 466                         get {
 467                                 object o = ViewState ["CellPadding"];
 468                                 if (o != null) return (int) o;
 469                                 return -1;
 470                         }
 471                         set {
 472                                 ViewState ["CellPadding"] = value;
 473                                 RequireBinding ();
 474                         }
 475                 }
 476
 477                 [WebCategoryAttribute ("Layout")]
 478                 [DefaultValueAttribute (0)]
 479                 public virtual int CellSpacing
 480                 {
 481                         get {
 482                                 object o = ViewState ["CellSpacing"];
 483                                 if (o != null) return (int) o;
 484                                 return 0;
 485                         }
 486                         set {
 487                                 ViewState ["CellSpacing"] = value;
 488                                 RequireBinding ();
 489                         }
 490                 }
 491
 492                 [EditorAttribute ("System.Web.UI.Design.WebControls.DataControlFieldTypeEditor, " + Consts.AssemblySystem_Design, "System.Drawing.Design.UITypeEditor, " + Consts.AssemblySystem_Drawing)]
 493                 [MergablePropertyAttribute (false)]
 494                 [PersistenceModeAttribute (PersistenceMode.InnerProperty)]
 495                 [DefaultValueAttribute (null)]
 496                 [WebCategoryAttribute ("Misc")]
 497                 public virtual DataControlFieldCollection Columns {
 498                         get {
 499                                 if (columns == null) {
 500                                         columns = new DataControlFieldCollection ();
 501                                         columns.FieldsChanged += new EventHandler (OnFieldsChanged);
 502                                         if (IsTrackingViewState)
 503                                                 ((IStateManager)columns).TrackViewState ();
 504                                 }
 505                                 return columns;
 506                         }
 507                 }
 508
 509                 [DefaultValueAttribute (null)]
 510                 [WebCategoryAttribute ("Data")]
 511                 [TypeConverter (typeof(StringArrayConverter))]
 512                 [EditorAttribute ("System.Web.UI.Design.WebControls.DataFieldEditor, " + Consts.AssemblySystem_Design, "System.Drawing.Design.UITypeEditor, " + Consts.AssemblySystem_Drawing)]
 513                 public virtual string[] DataKeyNames
 514                 {
 515                         get {
 516                                 if (dataKeyNames != null)
 517                                         return dataKeyNames;
 518                                 return emptyKeys;
 519                         }
 520                         set {
 521                                 dataKeyNames = value;
 522                                 RequireBinding ();
 523                         }
 524                 }
 525
 526                 [BrowsableAttribute (false)]
 527                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 528                 public virtual DataKeyArray DataKeys {
 529                         get {
 530                                 EnsureDataBound ();
 531                                 return keys;
 532                         }
 533                 }
 534
 535                 [WebCategoryAttribute ("Misc")]
 536                 [DefaultValueAttribute (-1)]
 537                 public virtual int EditIndex {
 538                         get {
 539                                 return editIndex;
 540                         }
 541                         set {
 542                                 editIndex = value;
 543                                 RequireBinding ();
 544                         }
 545                 }
 546
 547                 [WebCategoryAttribute ("Styles")]
 548                 [PersistenceMode (PersistenceMode.InnerProperty)]
 549                 [NotifyParentProperty (true)]
 550                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
 551                 public TableItemStyle EditRowStyle {
 552                         get {
 553                                 if (editRowStyle == null) {
 554                                         editRowStyle = new TableItemStyle ();
 555                                         if (IsTrackingViewState)
 556                                                 editRowStyle.TrackViewState();
 557                                 }
 558                                 return editRowStyle;
 559                         }
 560                 }
 561
 562                 [WebCategoryAttribute ("Styles")]
 563                 [PersistenceMode (PersistenceMode.InnerProperty)]
 564                 [NotifyParentProperty (true)]
 565                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
 566                 public TableItemStyle EmptyDataRowStyle {
 567                         get {
 568                                 if (emptyDataRowStyle == null) {
 569                                         emptyDataRowStyle = new TableItemStyle ();
 570                                         if (IsTrackingViewState)
 571                                                 emptyDataRowStyle.TrackViewState();
 572                                 }
 573                                 return emptyDataRowStyle;
 574                         }
 575                 }
 576
 577                 [DefaultValue (null)]
 578                 [TemplateContainer (typeof(GridViewRow), BindingDirection.OneWay)]
 579                 [PersistenceMode (PersistenceMode.InnerProperty)]
 580                 [Browsable (false)]
 581                 public virtual ITemplate EmptyDataTemplate {
 582                         get { return emptyDataTemplate; }
 583                         set { emptyDataTemplate = value; RequireBinding (); }
 584                 }
 585
 586                 [LocalizableAttribute (true)]
 587                 [WebCategoryAttribute ("Appearance")]
 588                 [DefaultValueAttribute ("")]
 589                 public virtual string EmptyDataText {
 590                         get {
 591                                 object ob = ViewState ["EmptyDataText"];
 592                                 if (ob != null) return (string) ob;
 593                                 return string.Empty;
 594                         }
 595                         set {
 596                                 ViewState ["EmptyDataText"] = value;
 597                                 RequireBinding ();
 598                         }
 599                 }
 600
 601                 [WebCategoryAttribute ("Behavior")]
 602                 [DefaultValueAttribute (false)]
 603                 public virtual bool EnableSortingAndPagingCallbacks {
 604                         get {
 605                                 object ob = ViewState ["EnableSortingAndPagingCallbacks"];
 606                                 if (ob != null) return (bool) ob;
 607                                 return false;
 608                         }
 609                         set {
 610                                 ViewState ["EnableSortingAndPagingCallbacks"] = value;
 611                                 RequireBinding ();
 612                         }
 613                 }
 614
 615                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 616                 [BrowsableAttribute (false)]
 617                 public virtual GridViewRow FooterRow {
 618                         get {
 619                                 if (table != null) {
 620                                         for (int index = table.Rows.Count - 1; index >= 0; index--) {
 621                                                 GridViewRow row = (GridViewRow) table.Rows [index];
 622                                                 switch (row.RowType) {
 623                                                 case DataControlRowType.Separator:
 624                                                 case DataControlRowType.Pager:
 625                                                         continue;
 626                                                 case DataControlRowType.Footer:
 627                                                         return row;
 628                                                 default:
 629                                                         break;
 630                                                 }
 631                                         }
 632                                 }
 633                                 return null;
 634                         }
 635                 }
 636
 637                 [WebCategoryAttribute ("Styles")]
 638                 [PersistenceMode (PersistenceMode.InnerProperty)]
 639                 [NotifyParentProperty (true)]
 640                 [DefaultValue (null)]
 641                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
 642                 public TableItemStyle FooterStyle {
 643                         get {
 644                                 if (footerStyle == null) {
 645                                         footerStyle = new TableItemStyle ();
 646                                         if (IsTrackingViewState)
 647                                                 footerStyle.TrackViewState();
 648                                 }
 649                                 return footerStyle;
 650                         }
 651                 }
 652
 653                 [WebCategoryAttribute ("Appearance")]
 654                 [DefaultValueAttribute (GridLines.Both)]
 655                 public virtual GridLines GridLines {
 656                         get {
 657                                 object ob = ViewState ["GridLines"];
 658                                 if (ob != null) return (GridLines) ob;
 659                                 return GridLines.Both;
 660                         }
 661                         set {
 662                                 ViewState ["GridLines"] = value;
 663                         }
 664                 }
 665
 666                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 667                 [BrowsableAttribute (false)]
 668                 public virtual GridViewRow HeaderRow {
 669                         get {
 670                                 if (table != null) {
 671                                         for (int index = 0, total = table.Rows.Count; index < total; index++) {
 672                                                 GridViewRow row = (GridViewRow) table.Rows [index];
 673                                                 switch (row.RowType) {
 674                                                 case DataControlRowType.Separator:
 675                                                 case DataControlRowType.Pager:
 676                                                         continue;
 677                                                 case DataControlRowType.Header:
 678                                                         return row;
 679                                                 default:
 680                                                         break;
 681                                                 }
 682                                         }
 683                                 }
 684                                 return null;
 685                         }
 686                 }
 687
 688                 [WebCategoryAttribute ("Styles")]
 689                 [PersistenceMode (PersistenceMode.InnerProperty)]
 690                 [NotifyParentProperty (true)]
 691                 [DefaultValue (null)]
 692                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
 693                 public TableItemStyle HeaderStyle {
 694                         get {
 695                                 if (headerStyle == null) {
 696                                         headerStyle = new TableItemStyle ();
 697                                         if (IsTrackingViewState)
 698                                                 headerStyle.TrackViewState();
 699                                 }
 700                                 return headerStyle;
 701                         }
 702                 }
 703
 704                 [Category ("Layout")]
 705                 [DefaultValueAttribute (HorizontalAlign.NotSet)]
 706                 public virtual HorizontalAlign HorizontalAlign {
 707                         get {
 708                                 object ob = ViewState ["HorizontalAlign"];
 709                                 if (ob != null) return (HorizontalAlign) ob;
 710                                 return HorizontalAlign.NotSet;
 711                         }
 712                         set {
 713                                 ViewState ["HorizontalAlign"] = value;
 714                                 RequireBinding ();
 715                         }
 716                 }
 717
 718                 [BrowsableAttribute (false)]
 719                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 720                 public virtual int PageCount {
 721                         get {
 722                                 if (pageCount != 0) return pageCount;
 723                                 EnsureDataBound ();
 724                                 return pageCount;
 725                         }
 726                 }
 727
 728                 [WebCategoryAttribute ("Paging")]
 729                 [BrowsableAttribute (true)]
 730                 [DefaultValueAttribute (0)]
 731                 public virtual int PageIndex {
 732                         get {
 733                                 return pageIndex;
 734                         }
 735                         set {
 736                                 pageIndex = value;
 737                                 RequireBinding ();
 738                         }
 739                 }
 740
 741                 [DefaultValueAttribute (10)]
 742                 [WebCategoryAttribute ("Paging")]
 743                 public virtual int PageSize {
 744                         get {
 745                                 object ob = ViewState ["PageSize"];
 746                                 if (ob != null) return (int) ob;
 747                                 return 10;
 748                         }
 749                         set {
 750                                 ViewState ["PageSize"] = value;
 751                                 RequireBinding ();
 752                         }
 753                 }
 754
 755                 [WebCategoryAttribute ("Paging")]
 756                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Content)]
 757                 [NotifyParentPropertyAttribute (true)]
 758                 [PersistenceModeAttribute (PersistenceMode.InnerProperty)]
 759                 public virtual PagerSettings PagerSettings {
 760                         get {
 761                                 if (pagerSettings == null) {
 762                                         pagerSettings = new PagerSettings (this);
 763                                         if (IsTrackingViewState)
 764                                                 ((IStateManager)pagerSettings).TrackViewState ();
 765                                 }
 766                                 return pagerSettings;
 767                         }
 768                 }
 769
 770                 [WebCategoryAttribute ("Styles")]
 771                 [PersistenceMode (PersistenceMode.InnerProperty)]
 772                 [NotifyParentProperty (true)]
 773                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
 774                 public TableItemStyle PagerStyle {
 775                         get {
 776                                 if (pagerStyle == null) {
 777                                         pagerStyle = new TableItemStyle ();
 778                                         if (IsTrackingViewState)
 779                                                 pagerStyle.TrackViewState();
 780                                 }
 781                                 return pagerStyle;
 782                         }
 783                 }
 784
 785
 786                 [DefaultValue (null)]
 787                 /* DataControlPagerCell isnt specified in the docs */
 788                 //[TemplateContainer (typeof(DataControlPagerCell), BindingDirection.OneWay)]
 789                 [PersistenceMode (PersistenceMode.InnerProperty)]
 790                 [Browsable (false)]
 791                 public virtual ITemplate PagerTemplate {
 792                         get { return pagerTemplate; }
 793                         set { pagerTemplate = value; RequireBinding (); }
 794                 }
 795
 796                 [DefaultValueAttribute ("")]
 797                 [WebCategoryAttribute ("Accessibility")]
 798                 //              [TypeConverterAttribute (typeof(System.Web.UI.Design.DataColumnSelectionConverter)]
 799                 public virtual string RowHeaderColumn {
 800                         get {
 801                                 object ob = ViewState ["RowHeaderColumn"];
 802                                 if (ob != null) return (string) ob;
 803                                 return string.Empty;
 804                         }
 805                         set {
 806                                 ViewState ["RowHeaderColumn"] = value;
 807                                 RequireBinding ();
 808                         }
 809                 }
 810
 811                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 812                 [BrowsableAttribute (false)]
 813                 public virtual GridViewRowCollection Rows {
 814                         get {
 815                                 EnsureDataBound ();
 816                                 return rows;
 817                         }
 818                 }
 819
 820                 [WebCategoryAttribute ("Styles")]
 821                 [PersistenceMode (PersistenceMode.InnerProperty)]
 822                 [NotifyParentProperty (true)]
 823                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
 824                 public TableItemStyle RowStyle {
 825                         get {
 826                                 if (rowStyle == null) {
 827                                         rowStyle = new TableItemStyle ();
 828                                         if (IsTrackingViewState)
 829                                                 rowStyle.TrackViewState();
 830                                 }
 831                                 return rowStyle;
 832                         }
 833                 }
 834
 835                 [BrowsableAttribute (false)]
 836                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 837                 public virtual DataKey SelectedDataKey {
 838                         get {
 839                                 if (DataKeys == null)
 840                                         throw new InvalidOperationException ("DataKeys");
 841
 842                                 if (selectedIndex >= 0 && selectedIndex < DataKeys.Count) {
 843                                         return DataKeys [selectedIndex];
 844                                 } else
 845                                         return null;
 846                         }
 847                 }
 848
 849                 [BindableAttribute (true)]
 850                 [DefaultValueAttribute (-1)]
 851                 public virtual int SelectedIndex {
 852                         get {
 853                                 return selectedIndex;
 854                         }
 855                         set {
 856                                 if (Rows != null && selectedIndex >= 0 && selectedIndex < Rows.Count) {
 857                                         int oldIndex = selectedIndex;
 858                                         selectedIndex = -1;
 859                                         Rows [oldIndex].RowState = GetRowState (oldIndex);
 860                                 }
 861                                 selectedIndex = value;
 862                                 if (Rows != null && selectedIndex >= 0 && selectedIndex < Rows.Count) {
 863                                         Rows [selectedIndex].RowState = GetRowState (selectedIndex);
 864                                 }
 865                         }
 866                 }
 867
 868                 [BrowsableAttribute (false)]
 869                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 870                 public virtual GridViewRow SelectedRow {
 871                         get {
 872                                 if (selectedIndex >= 0 && selectedIndex < Rows.Count) {
 873                                         return Rows [selectedIndex];
 874                                 } else
 875                                         return null;
 876                         }
 877                 }
 878
 879                 [WebCategoryAttribute ("Styles")]
 880                 [PersistenceMode (PersistenceMode.InnerProperty)]
 881                 [NotifyParentProperty (true)]
 882                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
 883                 public TableItemStyle SelectedRowStyle {
 884                         get {
 885                                 if (selectedRowStyle == null) {
 886                                         selectedRowStyle = new TableItemStyle ();
 887                                         if (IsTrackingViewState)
 888                                                 selectedRowStyle.TrackViewState();
 889                                 }
 890                                 return selectedRowStyle;
 891                         }
 892                 }
 893
 894                 [BrowsableAttribute (false)]
 895                 public object SelectedValue {
 896                         get {
 897                                 if (SelectedDataKey != null)
 898                                         return SelectedDataKey.Value;
 899                                 else
 900                                         return null;
 901                         }
 902                 }
 903
 904                 [WebCategoryAttribute ("Appearance")]
 905                 [DefaultValueAttribute (false)]
 906                 public virtual bool ShowFooter {
 907                         get {
 908                                 object ob = ViewState ["ShowFooter"];
 909                                 if (ob != null) return (bool) ob;
 910                                 return false;
 911                         }
 912                         set {
 913                                 ViewState ["ShowFooter"] = value;
 914                                 RequireBinding ();
 915                         }
 916                 }
 917
 918                 [WebCategoryAttribute ("Appearance")]
 919                 [DefaultValueAttribute (true)]
 920                 public virtual bool ShowHeader {
 921                         get {
 922                                 object ob = ViewState ["ShowHeader"];
 923                                 if (ob != null) return (bool) ob;
 924                                 return true;
 925                         }
 926                         set {
 927                                 ViewState ["ShowHeader"] = value;
 928                                 RequireBinding ();
 929                         }
 930                 }
 931
 932                 [PersistenceModeAttribute (PersistenceMode.InnerProperty)]
 933                 [BrowsableAttribute (false)]
 934                 [DefaultValueAttribute (SortDirection.Ascending)]
 935                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 936                 public virtual SortDirection SortDirection {
 937                         get { return sortDirection; }
 938                 }
 939
 940                 [BrowsableAttribute (false)]
 941                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 942                 public virtual string SortExpression {
 943                         get { return sortExpression; }
 944                 }
 945
 946                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 947                 [BrowsableAttribute (false)]
 948                 public virtual GridViewRow TopPagerRow {
 949                         get {
 950                                 EnsureDataBound ();
 951                                 return topPagerRow;
 952                         }
 953                 }
 954
 955                 [WebCategoryAttribute ("Accessibility")]
 956                 [DefaultValueAttribute (true)]
 957                 public virtual bool UseAccessibleHeader {
 958                         get {
 959                                 object ob = ViewState ["UseAccessibleHeader"];
 960                                 if (ob != null) return (bool) ob;
 961                                 return true;
 962                         }
 963                         set {
 964                                 ViewState ["UseAccessibleHeader"] = value;
 965                                 RequireBinding ();
 966                         }
 967                 }
 968
 969                 public virtual bool IsBindableType (Type type)
 970                 {
 971                         return type.IsPrimitive || type == typeof(string) || type == typeof(DateTime) || type == typeof(Guid);
 972                 }
 973
 974                 protected override DataSourceSelectArguments CreateDataSourceSelectArguments ()
 975                 {
 976                         return base.CreateDataSourceSelectArguments ();
 977                 }
 978
 979                 protected virtual ICollection CreateColumns (PagedDataSource dataSource, bool useDataSource)
 980                 {
 981                         ArrayList fields = new ArrayList ();
 982                         fields.AddRange (Columns);
 983
 984                         if (AutoGenerateEditButton || AutoGenerateDeleteButton || AutoGenerateSelectButton) {
 985                                 CommandField field = new CommandField ();
 986                                 field.ShowEditButton = AutoGenerateEditButton;
 987                                 field.ShowDeleteButton = AutoGenerateDeleteButton;
 988                                 field.ShowSelectButton = AutoGenerateSelectButton;
 989                                 fields.Add (field);
 990                         }
 991
 992                         if (AutoGenerateColumns) {
 993                                 if (useDataSource)
 994                                         autoFieldProperties = CreateAutoFieldProperties (dataSource);
 995
 996                                 if (autoFieldProperties != null) {
 997                                         foreach (AutoGeneratedFieldProperties props in autoFieldProperties)
 998                                                 fields.Add (CreateAutoGeneratedColumn (props));
 999                                 }
1000                         }
1001
1002                         return fields;
1003                 }
1004
1005                 protected virtual AutoGeneratedField CreateAutoGeneratedColumn (AutoGeneratedFieldProperties fieldProperties)
1006                 {
1007                         return new AutoGeneratedField (fieldProperties);
1008                 }
1009
1010                 AutoGeneratedFieldProperties[] CreateAutoFieldProperties (PagedDataSource source)
1011                 {
1012                         if(source == null) return null;
1013
1014                         PropertyDescriptorCollection props = source.GetItemProperties (new PropertyDescriptor[0]);
1015                         Type prop_type;
1016
1017                         ArrayList retVal = new ArrayList();
1018
1019                         if (props == null)
1020                         {
1021                                 object fitem = null;
1022                                 prop_type = null;
1023                                 PropertyInfo prop_item =  source.DataSource.GetType().GetProperty("Item",
1024                                                                                                   BindingFlags.Instance | BindingFlags.Static |
1025                                                                                                   BindingFlags.Public, null, null,
1026                                                                                                   new Type[] { typeof(int) }, null);
1027
1028                                 if (prop_item != null) {
1029                                         prop_type = prop_item.PropertyType;
1030                                 }
1031
1032                                 if (prop_type == null || prop_type == typeof(object)) {
1033                                         IEnumerator en = source.GetEnumerator();
1034                                         if (en.MoveNext())
1035                                                 fitem = en.Current;
1036                                         if (fitem != null)
1037                                                 prop_type = fitem.GetType();
1038                                 }
1039
1040                                 if (fitem != null && fitem is ICustomTypeDescriptor) {
1041                                         props = TypeDescriptor.GetProperties(fitem);
1042                                 } else if (prop_type != null) {
1043                                         if (IsBindableType (prop_type)) {
1044                                                 AutoGeneratedFieldProperties field = new AutoGeneratedFieldProperties ();
1045                                                 ((IStateManager)field).TrackViewState();
1046                                                 field.Name = "Item";
1047                                                 field.DataField = BoundField.ThisExpression;
1048                                                 field.Type = prop_type;
1049                                                 retVal.Add (field);
1050                                         } else {
1051                                                 props = TypeDescriptor.GetProperties (prop_type);
1052                                         }
1053                                 }
1054                         }
1055
1056                         if (props != null && props.Count > 0)
1057                         {
1058                                 foreach (PropertyDescriptor current in props) {
1059                                         if (IsBindableType (current.PropertyType)) {
1060                                                 AutoGeneratedFieldProperties field = new AutoGeneratedFieldProperties ();
1061                                                 ((IStateManager)field).TrackViewState();
1062                                                 field.Name = current.Name;
1063                                                 field.DataField = current.Name;
1064                                                 field.IsReadOnly = current.IsReadOnly;
1065                                                 field.Type = current.PropertyType;
1066                                                 retVal.Add (field);
1067                                         }
1068                                 }
1069                         }
1070
1071                         if (retVal.Count > 0)
1072                                 return (AutoGeneratedFieldProperties[]) retVal.ToArray (typeof(AutoGeneratedFieldProperties));
1073                         else
1074                                 return new AutoGeneratedFieldProperties [0];
1075                 }
1076
1077                 protected virtual GridViewRow CreateRow (int rowIndex, int dataSourceIndex, DataControlRowType rowType, DataControlRowState rowState)
1078                 {
1079                         GridViewRow row = new GridViewRow (rowIndex, dataSourceIndex, rowType, rowState);
1080                         OnRowCreated (new GridViewRowEventArgs (row));
1081                         return row;
1082                 }
1083
1084                 void RequireBinding ()
1085                 {
1086                         if (Initialized) {
1087                                 RequiresDataBinding = true;
1088                                 pageCount = -1;
1089                         }
1090                 }
1091
1092                 protected virtual Table CreateChildTable ()
1093                 {
1094                         Table table = new Table ();
1095                         table.Caption = Caption;
1096                         table.CaptionAlign = CaptionAlign;
1097                         table.CellPadding = CellPadding;
1098                         table.CellSpacing = CellSpacing;
1099                         table.HorizontalAlign = HorizontalAlign;
1100                         table.BackImageUrl = BackImageUrl;
1101                         return table;
1102                 }
1103
1104                 protected override int CreateChildControls (IEnumerable data, bool dataBinding)
1105                 {
1106                         PagedDataSource dataSource;
1107
1108                         if (dataBinding) {
1109                                 DataSourceView view = GetData ();
1110                                 dataSource = new PagedDataSource ();
1111                                 dataSource.DataSource = data;
1112
1113                                 if (AllowPaging) {
1114                                         dataSource.AllowPaging = true;
1115                                         dataSource.PageSize = PageSize;
1116                                         dataSource.CurrentPageIndex = PageIndex;
1117                                         if (view.CanPage) {
1118                                                 dataSource.AllowServerPaging = true;
1119                                                 if (view.CanRetrieveTotalRowCount)
1120                                                         dataSource.VirtualCount = SelectArguments.TotalRowCount;
1121                                         }
1122                                 }
1123
1124                                 pageCount = dataSource.PageCount;
1125                         }
1126                         else
1127                         {
1128                                 dataSource = new PagedDataSource ();
1129                                 dataSource.DataSource = data;
1130                                 if (AllowPaging) {
1131                                         dataSource.AllowPaging = true;
1132                                         dataSource.PageSize = PageSize;
1133                                         dataSource.CurrentPageIndex = PageIndex;
1134                                 }
1135                         }
1136
1137                         bool showPager = AllowPaging && (PageCount > 1);
1138
1139                         Controls.Clear ();
1140                         table = CreateChildTable ();
1141                         Controls.Add (table);
1142
1143                         ArrayList list = new ArrayList ();
1144                         ArrayList keyList = new ArrayList ();
1145
1146                         // Creates the set of fields to show
1147
1148                         ICollection fieldCollection = CreateColumns (dataSource, dataBinding);
1149                         DataControlField[] fields = new DataControlField [fieldCollection.Count];
1150                         fieldCollection.CopyTo (fields, 0);
1151
1152                         foreach (DataControlField field in fields) {
1153                                 field.Initialize (AllowSorting, this);
1154                                 if (EnableSortingAndPagingCallbacks)
1155                                         field.ValidateSupportsCallback ();
1156                         }
1157
1158                         // Main table creation
1159
1160                         if (showPager && PagerSettings.Position == PagerPosition.Top || PagerSettings.Position == PagerPosition.TopAndBottom) {
1161                                 topPagerRow = CreatePagerRow (fields.Length, dataSource);
1162                                 table.Rows.Add (topPagerRow);
1163                         }
1164
1165                         GridViewRow headerRow = CreateRow (0, 0, DataControlRowType.Header, DataControlRowState.Normal);
1166                         table.Rows.Add (headerRow);
1167                         InitializeRow (headerRow, fields);
1168
1169                         foreach (object obj in dataSource) {
1170                                 DataControlRowState rstate = GetRowState (list.Count);
1171                                 GridViewRow row = CreateRow (list.Count, list.Count, DataControlRowType.DataRow, rstate);
1172                                 row.DataItem = obj;
1173                                 list.Add (row);
1174                                 table.Rows.Add (row);
1175                                 InitializeRow (row, fields);
1176                                 if (dataBinding) {
1177                                         row.DataBind ();
1178                                         OnRowDataBound (new GridViewRowEventArgs (row));
1179                                         if (EditIndex == row.RowIndex)
1180                                                 oldEditValues = new DataKey (GetRowValues (row, false, true));
1181                                         keyList.Add (new DataKey (CreateRowDataKey (row), DataKeyNames));
1182                                 } else {
1183                                         if (EditIndex == row.RowIndex)
1184                                                 oldEditValues = new DataKey (new OrderedDictionary ());
1185                                         keyList.Add (new DataKey (new OrderedDictionary (), DataKeyNames));
1186                                 }
1187
1188                                 if (list.Count >= PageSize)
1189                                         break;
1190                         }
1191
1192                         if (list.Count == 0)
1193                                 table.Rows.Add (CreateEmptyrRow (fields.Length));
1194
1195                         GridViewRow footerRow = CreateRow (0, 0, DataControlRowType.Footer, DataControlRowState.Normal);
1196                         table.Rows.Add (footerRow);
1197                         InitializeRow (footerRow, fields);
1198
1199                         if (showPager && PagerSettings.Position == PagerPosition.Bottom || PagerSettings.Position == PagerPosition.TopAndBottom) {
1200                                 bottomPagerRow = CreatePagerRow (fields.Length, dataSource);
1201                                 table.Rows.Add (bottomPagerRow);
1202                         }
1203
1204                         rows = new GridViewRowCollection (list);
1205                         keys = new DataKeyArray (keyList);
1206
1207                         return dataSource.DataSourceCount;
1208                 }
1209
1210                 [MonoTODO]
1211                 protected override Style CreateControlStyle ()
1212                 {
1213                         style = new TableStyle (ViewState);
1214                         style.GridLines = GridLines.Both;
1215                         style.CellSpacing = 0;
1216                         return style;
1217                 }
1218
1219                 DataControlRowState GetRowState (int index)
1220                 {
1221                         DataControlRowState rstate = (index % 2) == 0 ? DataControlRowState.Normal : DataControlRowState.Alternate;
1222                         if (index == SelectedIndex) rstate |= DataControlRowState.Selected;
1223                         if (index == EditIndex) rstate |= DataControlRowState.Edit;
1224                         return rstate;
1225                 }
1226
1227                 GridViewRow CreatePagerRow (int fieldCount, PagedDataSource dataSource)
1228                 {
1229                         GridViewRow row = CreateRow (-1, -1, DataControlRowType.Pager, DataControlRowState.Normal);
1230                         InitializePager (row, fieldCount, dataSource);
1231                         return row;
1232                 }
1233
1234                 protected virtual void InitializePager (GridViewRow row, int columnSpan, PagedDataSource dataSource)
1235                 {
1236                         TableCell cell = new TableCell ();
1237                         if (columnSpan > 1)
1238                                 cell.ColumnSpan = columnSpan;
1239
1240                         if (pagerTemplate != null)
1241                                 pagerTemplate.InstantiateIn (cell);
1242                         else
1243                                 cell.Controls.Add (PagerSettings.CreatePagerControl (dataSource.CurrentPageIndex, dataSource.PageCount));
1244
1245                         row.Cells.Add (cell);
1246                 }
1247
1248                 GridViewRow CreateEmptyrRow (int fieldCount)
1249                 {
1250                         GridViewRow row = CreateRow (-1, -1, DataControlRowType.EmptyDataRow, DataControlRowState.Normal);
1251                         TableCell cell = new TableCell ();
1252                         cell.ColumnSpan = fieldCount;
1253
1254                         if (emptyDataTemplate != null)
1255                                 emptyDataTemplate.InstantiateIn (cell);
1256                         else
1257                                 cell.Text = EmptyDataText;
1258
1259                         row.Cells.Add (cell);
1260                         return row;
1261                 }
1262
1263                 protected virtual void InitializeRow (GridViewRow row, DataControlField[] fields)
1264                 {
1265                         DataControlCellType ctype;
1266                         bool accessibleHeader = false;
1267
1268                         switch (row.RowType) {
1269                         case DataControlRowType.Header:
1270                                 ctype = DataControlCellType.Header;
1271                                 accessibleHeader = UseAccessibleHeader;
1272                                 break;
1273                         case DataControlRowType.Footer:
1274                                 ctype = DataControlCellType.Footer;
1275                                 break;
1276                         default:
1277                                 ctype = DataControlCellType.DataCell;
1278                                 break;
1279                         }
1280
1281                         for (int n=0; n<fields.Length; n++) {
1282                                 DataControlField field = fields [n];
1283                                 DataControlFieldCell cell;
1284                                 if (((field is BoundField) && ((BoundField)field).DataField == RowHeaderColumn) || accessibleHeader)
1285                                         cell = new DataControlFieldHeaderCell (field, accessibleHeader ? TableHeaderScope.Column : TableHeaderScope.Row);
1286                                 else
1287                                         cell = new DataControlFieldCell (field);
1288                                 row.Cells.Add (cell);
1289                                 field.InitializeCell (cell, ctype, row.RowState, row.RowIndex);
1290                         }
1291                 }
1292
1293                 IOrderedDictionary CreateRowDataKey (GridViewRow row)
1294                 {
1295                         if (cachedKeyProperties == null) {
1296                                 PropertyDescriptorCollection props = TypeDescriptor.GetProperties (row.DataItem);
1297                                 cachedKeyProperties = new PropertyDescriptor [DataKeyNames.Length];
1298                                 for (int n=0; n<DataKeyNames.Length; n++) {
1299                                         PropertyDescriptor p = props [DataKeyNames[n]];
1300                                         if (p == null)
1301                                                 new InvalidOperationException ("Property '" + DataKeyNames[n] + "' not found in object of type " + row.DataItem.GetType());
1302                                         cachedKeyProperties [n] = p;
1303                                 }
1304                         }
1305
1306                         OrderedDictionary dic = new OrderedDictionary ();
1307                         foreach (PropertyDescriptor p in cachedKeyProperties)
1308                                 dic [p.Name] = p.GetValue (row.DataItem);
1309                         return dic;
1310                 }
1311
1312                 IOrderedDictionary GetRowValues (GridViewRow row, bool includeReadOnlyFields, bool includePrimaryKey)
1313                 {
1314                         OrderedDictionary dic = new OrderedDictionary ();
1315                         ExtractRowValues (dic, row, includeReadOnlyFields, includePrimaryKey);
1316                         return dic;
1317                 }
1318
1319                 protected virtual void ExtractRowValues (IOrderedDictionary fieldValues, GridViewRow row, bool includeReadOnlyFields, bool includePrimaryKey)
1320                 {
1321                         foreach (TableCell cell in row.Cells) {
1322                                 DataControlFieldCell c = cell as DataControlFieldCell;
1323                                 if (c != null)
1324                                         c.ContainingField.ExtractValuesFromCell (fieldValues, c, row.RowState, includeReadOnlyFields);
1325                         }
1326                         if (!includePrimaryKey && DataKeyNames != null)
1327                                 foreach (string key in DataKeyNames)
1328                                         fieldValues.Remove (key);
1329                 }
1330
1331                 protected override HtmlTextWriterTag TagKey {
1332                         get {
1333                                 if (EnableSortingAndPagingCallbacks)
1334                                         return HtmlTextWriterTag.Div;
1335                                 else
1336                                         return HtmlTextWriterTag.Table;
1337                         }
1338                 }
1339
1340                 public sealed override void DataBind ()
1341                 {
1342                         DataSourceView view = GetData ();
1343                         if (AllowPaging && view.CanPage) {
1344                                 SelectArguments.StartRowIndex = PageIndex * PageSize;
1345                                 SelectArguments.MaximumRows = PageSize;
1346                                 if (view.CanRetrieveTotalRowCount)
1347                                         SelectArguments.RetrieveTotalRowCount = true;
1348                         }
1349
1350                         if (sortExpression != "") {
1351                                 if (sortDirection == SortDirection.Ascending)
1352                                         SelectArguments.SortExpression = sortExpression;
1353                                 else
1354                                         SelectArguments.SortExpression = sortExpression + " DESC";
1355                         }
1356
1357                         cachedKeyProperties = null;
1358                         base.DataBind ();
1359                 }
1360
1361                 protected internal override void PerformDataBinding (IEnumerable data)
1362                 {
1363                         base.PerformDataBinding (data);
1364                 }
1365
1366                 [MonoTODO]
1367                 protected internal virtual void PrepareControlHierarchy ()
1368                 {
1369                         throw new NotImplementedException ();
1370                 }
1371
1372                 protected internal override void OnInit (EventArgs e)
1373                 {
1374                         Page.RegisterRequiresControlState (this);
1375                         base.OnInit (e);
1376                 }
1377
1378                 void OnFieldsChanged (object sender, EventArgs args)
1379                 {
1380                         RequireBinding ();
1381                 }
1382
1383                 protected override void OnDataPropertyChanged ()
1384                 {
1385                         base.OnDataPropertyChanged ();
1386                         RequireBinding ();
1387                 }
1388
1389                 protected override void OnDataSourceViewChanged (object sender, EventArgs e)
1390                 {
1391                         base.OnDataSourceViewChanged (sender, e);
1392                         RequireBinding ();
1393                 }
1394
1395                 protected override bool OnBubbleEvent (object source, EventArgs e)
1396                 {
1397                         GridViewCommandEventArgs args = e as GridViewCommandEventArgs;
1398                         if (args != null) {
1399                                 OnRowCommand (args);
1400                                 string param = args.CommandArgument as string;
1401                                 if (param == null || param.Length == 0) {
1402                                         GridViewRow row = args.Row;
1403                                         if (row != null)
1404                                                 param = row.RowIndex.ToString();
1405                                 }
1406                                 ProcessEvent (args.CommandName, param);
1407                         }
1408                         return base.OnBubbleEvent (source, e);
1409                 }
1410
1411                 void IPostBackEventHandler.RaisePostBackEvent (string eventArgument)
1412                 {
1413                         RaisePostBackEvent (eventArgument);
1414                 }
1415
1416                 // This is prolly obsolete
1417                 protected virtual void RaisePostBackEvent (string eventArgument)
1418                 {
1419                         int i = eventArgument.IndexOf ('$');
1420                         if (i != -1)
1421                                 ProcessEvent (eventArgument.Substring (0, i), eventArgument.Substring (i + 1));
1422                         else
1423                                 ProcessEvent (eventArgument, null);
1424                 }
1425
1426                 void ProcessEvent (string eventName, string param)
1427                 {
1428                         switch (eventName)
1429                         {
1430                         case DataControlCommands.PageCommandName:
1431                                 int newIndex = -1;
1432                                 switch (param) {
1433                                 case DataControlCommands.FirstPageCommandArgument:
1434                                         newIndex = 0;
1435                                         break;
1436                                 case DataControlCommands.LastPageCommandArgument:
1437                                         newIndex = PageCount - 1;
1438                                         break;
1439                                 case DataControlCommands.NextPageCommandArgument:
1440                                         if (PageIndex < PageCount - 1) newIndex = PageIndex + 1;
1441                                         break;
1442                                 case DataControlCommands.PreviousPageCommandArgument:
1443                                         if (PageIndex > 0) newIndex = PageIndex - 1;
1444                                         break;
1445                                 default:
1446                                         newIndex = int.Parse (param) - 1;
1447                                         break;
1448                                 }
1449                                 ShowPage (newIndex);
1450                                 break;
1451
1452                         case DataControlCommands.FirstPageCommandArgument:
1453                                 ShowPage (0);
1454                                 break;
1455
1456                         case DataControlCommands.LastPageCommandArgument:
1457                                 ShowPage (PageCount - 1);
1458                                 break;
1459
1460                         case DataControlCommands.NextPageCommandArgument:
1461                                 if (PageIndex < PageCount - 1)
1462                                         ShowPage (PageIndex + 1);
1463                                 break;
1464
1465                         case DataControlCommands.PreviousPageCommandArgument:
1466                                 if (PageIndex > 0)
1467                                         ShowPage (PageIndex - 1);
1468                                 break;
1469
1470                         case DataControlCommands.SelectCommandName:
1471                                 SelectRow (int.Parse (param));
1472                                 break;
1473
1474                         case DataControlCommands.EditCommandName:
1475                                 EditRow (int.Parse (param));
1476                                 break;
1477
1478                         case DataControlCommands.UpdateCommandName:
1479                                 UpdateRow (EditIndex, true);
1480                                 break;
1481
1482                         case DataControlCommands.CancelCommandName:
1483                                 CancelEdit ();
1484                                 break;
1485
1486                         case DataControlCommands.DeleteCommandName:
1487                                 DeleteRow (int.Parse (param));
1488                                 break;
1489
1490                         case DataControlCommands.SortCommandName:
1491                                 Sort (param);
1492                                 break;
1493                         }
1494                 }
1495
1496                 void Sort (string newSortExpression)
1497                 {
1498                         SortDirection newDirection;
1499                         if (sortExpression == newSortExpression) {
1500                                 if (sortDirection == SortDirection.Ascending)
1501                                         newDirection = SortDirection.Descending;
1502                                 else
1503                                         newDirection = SortDirection.Ascending;
1504                         } else
1505                                 newDirection = sortDirection;
1506
1507                         Sort (newSortExpression, newDirection);
1508                 }
1509
1510                 public virtual void Sort (string newSortExpression, SortDirection newSortDirection)
1511                 {
1512                         GridViewSortEventArgs args = new GridViewSortEventArgs (newSortExpression, newSortDirection);
1513                         OnSorting (args);
1514                         if (args.Cancel) return;
1515
1516                         sortExpression = args.SortExpression;
1517                         sortDirection = args.SortDirection;
1518                         RequireBinding ();
1519
1520                         OnSorted (EventArgs.Empty);
1521                 }
1522
1523                 void SelectRow (int index)
1524                 {
1525                         GridViewSelectEventArgs args = new GridViewSelectEventArgs (index);
1526                         OnSelectedIndexChanging (args);
1527                         if (!args.Cancel) {
1528                                 SelectedIndex = args.NewSelectedIndex;
1529                                 OnSelectedIndexChanged (EventArgs.Empty);
1530                         }
1531                 }
1532
1533                 void ShowPage (int newIndex)
1534                 {
1535                         GridViewPageEventArgs args = new GridViewPageEventArgs (newIndex);
1536                         OnPageIndexChanging (args);
1537                         if (!args.Cancel) {
1538                                 EndRowEdit ();
1539                                 PageIndex = args.NewPageIndex;
1540                                 OnPageIndexChanged (EventArgs.Empty);
1541                         }
1542                 }
1543
1544                 void EditRow (int index)
1545                 {
1546                         GridViewEditEventArgs args = new GridViewEditEventArgs (index);
1547                         OnRowEditing (args);
1548                         if (!args.Cancel) {
1549                                 EditIndex = args.NewEditIndex;
1550                         }
1551                 }
1552
1553                 void CancelEdit ()
1554                 {
1555                         GridViewCancelEditEventArgs args = new GridViewCancelEditEventArgs (EditIndex);
1556                         OnRowCancelingEdit (args);
1557                         if (!args.Cancel) {
1558                                 EndRowEdit ();
1559                         }
1560                 }
1561
1562                 [MonoTODO ("Support two-way binding expressions")]
1563                 public virtual void UpdateRow (int rowIndex, bool causesValidation)
1564                 {
1565                         if (causesValidation)
1566                                 Page.Validate ();
1567
1568                         if (rowIndex != EditIndex) throw new NotSupportedException ();
1569
1570                         currentEditOldValues = oldEditValues.Values;
1571
1572                         GridViewRow row = Rows [rowIndex];
1573                         currentEditRowKeys = DataKeys [rowIndex].Values;
1574                         currentEditNewValues = GetRowValues (row, false, false);
1575
1576                         GridViewUpdateEventArgs args = new GridViewUpdateEventArgs (EditIndex, currentEditRowKeys, currentEditOldValues, currentEditNewValues);
1577                         OnRowUpdating (args);
1578                         if (!args.Cancel) {
1579                                 DataSourceView view = GetData ();
1580                                 if (view == null) throw new HttpException ("The DataSourceView associated to data bound control was null");
1581                                 view.Update (currentEditRowKeys, currentEditNewValues, currentEditOldValues, new DataSourceViewOperationCallback (UpdateCallback));
1582                         } else
1583                                 EndRowEdit ();
1584                 }
1585
1586                 bool UpdateCallback (int recordsAffected, Exception exception)
1587                 {
1588                         GridViewUpdatedEventArgs dargs = new GridViewUpdatedEventArgs (recordsAffected, exception, currentEditRowKeys, currentEditOldValues, currentEditNewValues);
1589                         OnRowUpdated (dargs);
1590
1591                         if (!dargs.KeepInEditMode)
1592                                 EndRowEdit ();
1593
1594                         return dargs.ExceptionHandled;
1595                 }
1596
1597                 public virtual void DeleteRow (int rowIndex)
1598                 {
1599                         GridViewRow row = Rows [rowIndex];
1600                         currentEditRowKeys = DataKeys [rowIndex].Values;
1601                         currentEditNewValues = GetRowValues (row, true, true);
1602
1603                         GridViewDeleteEventArgs args = new GridViewDeleteEventArgs (rowIndex, currentEditRowKeys, currentEditNewValues);
1604                         OnRowDeleting (args);
1605
1606                         if (!args.Cancel) {
1607                                 RequireBinding ();
1608                                 DataSourceView view = GetData ();
1609                                 if (view != null)
1610                                         view.Delete (currentEditRowKeys, currentEditNewValues, new DataSourceViewOperationCallback (DeleteCallback));
1611                                 else {
1612                                         GridViewDeletedEventArgs dargs = new GridViewDeletedEventArgs (0, null, currentEditRowKeys, currentEditNewValues);
1613                                         OnRowDeleted (dargs);
1614                                 }
1615                         }
1616                 }
1617
1618                 bool DeleteCallback (int recordsAffected, Exception exception)
1619                 {
1620                         GridViewDeletedEventArgs dargs = new GridViewDeletedEventArgs (recordsAffected, exception, currentEditRowKeys, currentEditNewValues);
1621                         OnRowDeleted (dargs);
1622                         return dargs.ExceptionHandled;
1623                 }
1624
1625                 void EndRowEdit ()
1626                 {
1627                         EditIndex = -1;
1628                         oldEditValues = new DataKey (new OrderedDictionary ());
1629                         currentEditRowKeys = null;
1630                         currentEditOldValues = null;
1631                         currentEditNewValues = null;
1632                 }
1633
1634                 protected internal override void LoadControlState (object ob)
1635                 {
1636                         if (ob == null) return;
1637                         object[] state = (object[]) ob;
1638                         base.LoadControlState (state[0]);
1639                         pageIndex = (int) state[1];
1640                         pageCount = (int) state[2];
1641                         selectedIndex = (int) state[3];
1642                         editIndex = (int) state[4];
1643                         sortExpression = (string) state[5];
1644                         sortDirection = (SortDirection) state[6];
1645                         DataKeyNames = (string []) state [7];
1646                 }
1647
1648                 protected internal override object SaveControlState ()
1649                 {
1650                         object bstate = base.SaveControlState ();
1651                         return new object[] {
1652                                 bstate, pageIndex, pageCount, selectedIndex, editIndex, sortExpression, sortDirection, DataKeyNames
1653                                         };
1654                 }
1655
1656                 protected override void TrackViewState()
1657                 {
1658                         base.TrackViewState();
1659                         if (columns != null) ((IStateManager)columns).TrackViewState();
1660                         if (pagerSettings != null) ((IStateManager)pagerSettings).TrackViewState();
1661                         if (alternatingRowStyle != null) ((IStateManager)alternatingRowStyle).TrackViewState();
1662                         if (footerStyle != null) ((IStateManager)footerStyle).TrackViewState();
1663                         if (headerStyle != null) ((IStateManager)headerStyle).TrackViewState();
1664                         if (pagerStyle != null) ((IStateManager)pagerStyle).TrackViewState();
1665                         if (rowStyle != null) ((IStateManager)rowStyle).TrackViewState();
1666                         if (selectedRowStyle != null) ((IStateManager)selectedRowStyle).TrackViewState();
1667                         if (editRowStyle != null) ((IStateManager)editRowStyle).TrackViewState();
1668                         if (emptyDataRowStyle != null) ((IStateManager)emptyDataRowStyle).TrackViewState();
1669                         if (keys != null) ((IStateManager)keys).TrackViewState();
1670                         if (autoFieldProperties != null) {
1671                                 foreach (IStateManager sm in autoFieldProperties)
1672                                         sm.TrackViewState ();
1673                         }
1674                 }
1675
1676                 protected override object SaveViewState()
1677                 {
1678                         object[] states = new object [14];
1679                         states[0] = base.SaveViewState();
1680                         states[1] = (columns == null ? null : ((IStateManager)columns).SaveViewState());
1681                         states[2] = (pagerSettings == null ? null : ((IStateManager)pagerSettings).SaveViewState());
1682                         states[3] = (alternatingRowStyle == null ? null : ((IStateManager)alternatingRowStyle).SaveViewState());
1683                         states[4] = (footerStyle == null ? null : ((IStateManager)footerStyle).SaveViewState());
1684                         states[5] = (headerStyle == null ? null : ((IStateManager)headerStyle).SaveViewState());
1685                         states[6] = (pagerStyle == null ? null : ((IStateManager)pagerStyle).SaveViewState());
1686                         states[7] = (rowStyle == null ? null : ((IStateManager)rowStyle).SaveViewState());
1687                         states[8] = (selectedRowStyle == null ? null : ((IStateManager)selectedRowStyle).SaveViewState());
1688                         states[9] = (editRowStyle == null ? null : ((IStateManager)editRowStyle).SaveViewState());
1689                         states[10] = (emptyDataRowStyle == null ? null : ((IStateManager)emptyDataRowStyle).SaveViewState());
1690                         states[11] = (keys == null ? null : ((IStateManager)keys).SaveViewState());
1691                         states[12] = (oldEditValues == null ? null : ((IStateManager)oldEditValues).SaveViewState());
1692
1693                         if (autoFieldProperties != null) {
1694                                 object[] data = new object [autoFieldProperties.Length];
1695                                 bool allNull = true;
1696                                 for (int n=0; n<data.Length; n++) {
1697                                         data [n] = ((IStateManager)autoFieldProperties [n]).SaveViewState ();
1698                                         if (data [n] != null) allNull = false;
1699                                 }
1700                                 if (!allNull) states [13] = data;
1701                         }
1702
1703                         for (int i = states.Length - 1; i >= 0; i--) {
1704                                 if (states [i] != null)
1705                                         return states;
1706                         }
1707
1708                         return null;
1709                 }
1710
1711                 protected override void LoadViewState (object savedState)
1712                 {
1713                         if (savedState == null) {
1714                                 base.LoadViewState (null);
1715                                 return;
1716                         }
1717
1718                         object [] states = (object []) savedState;
1719
1720                         if (states[13] != null) {
1721                                 object[] data = (object[]) states [13];
1722                                 autoFieldProperties = new AutoGeneratedFieldProperties [data.Length];
1723                                 for (int n=0; n<data.Length; n++) {
1724                                         IStateManager p = new AutoGeneratedFieldProperties ();
1725                                         p.TrackViewState ();
1726                                         p.LoadViewState (data [n]);
1727                                         autoFieldProperties [n] = (AutoGeneratedFieldProperties) p;
1728                                 }
1729                         }
1730
1731                         base.LoadViewState (states[0]);
1732                         EnsureChildControls ();
1733
1734                         if (states[1] != null) ((IStateManager)Columns).LoadViewState (states[1]);
1735                         if (states[2] != null) ((IStateManager)PagerSettings).LoadViewState (states[2]);
1736                         if (states[3] != null) ((IStateManager)AlternatingRowStyle).LoadViewState (states[3]);
1737                         if (states[4] != null) ((IStateManager)FooterStyle).LoadViewState (states[4]);
1738                         if (states[5] != null) ((IStateManager)HeaderStyle).LoadViewState (states[5]);
1739                         if (states[6] != null) ((IStateManager)PagerStyle).LoadViewState (states[6]);
1740                         if (states[7] != null) ((IStateManager)RowStyle).LoadViewState (states[7]);
1741                         if (states[8] != null) ((IStateManager)SelectedRowStyle).LoadViewState (states[8]);
1742                         if (states[9] != null) ((IStateManager)EditRowStyle).LoadViewState (states[9]);
1743                         if (states[10] != null) ((IStateManager)EmptyDataRowStyle).LoadViewState (states[10]);
1744                         if (states[11] != null) ((IStateManager)DataKeys).LoadViewState (states[11]);
1745                         if (states[12] != null && oldEditValues != null) ((IStateManager)oldEditValues).LoadViewState (states[12]);
1746                 }
1747
1748                 void ICallbackEventHandler.RaiseCallbackEvent (string eventArgs)
1749                 {
1750                         RaiseCallbackEvent (eventArgs);
1751                 }
1752
1753                 string callbackResult;
1754                 protected virtual void RaiseCallbackEvent (string eventArgs)
1755                 {
1756                         string[] clientData = eventArgs.Split ('|');
1757                         pageIndex = int.Parse (clientData[0]);
1758                         sortExpression = HttpUtility.UrlDecode (clientData[1]);
1759                         if (sortExpression == "") sortExpression = null;
1760                         RequireBinding ();
1761
1762                         RaisePostBackEvent (clientData[2]);
1763                         EnsureDataBound ();
1764
1765                         StringWriter sw = new StringWriter ();
1766                         sw.Write (PageIndex.ToString() + '|' + SortExpression + '|');
1767
1768                         HtmlTextWriter writer = new HtmlTextWriter (sw);
1769                         RenderGrid (writer);
1770                         callbackResult = sw.ToString ();
1771                 }
1772
1773                 string ICallbackEventHandler.GetCallbackResult ()
1774                 {
1775                         return GetCallbackResult ();
1776                 }
1777
1778                 protected virtual string GetCallbackResult ()
1779                 {
1780                         return callbackResult;
1781                 }
1782
1783                 string ICallbackContainer.GetCallbackScript (IButtonControl control, string argument)
1784                 {
1785                         return GetCallbackScript (control, argument);
1786                 }
1787
1788                 protected virtual string GetCallbackScript (IButtonControl control, string argument)
1789                 {
1790                         if (EnableSortingAndPagingCallbacks)
1791                                 return "javascript:GridView_ClientEvent (\"" + ClientID + "\",\"" + control.CommandName + "$" + control.CommandArgument + "\"); return false;";
1792                         else
1793                                 return null;
1794                 }
1795
1796                 [MonoTODO]
1797                 protected override void OnPagePreLoad (object sender, EventArgs e)
1798                 {
1799                         base.OnPagePreLoad (sender, e);
1800                 }
1801
1802                 protected internal override void OnPreRender (EventArgs e)
1803                 {
1804                         base.OnPreRender (e);
1805
1806                         if (EnableSortingAndPagingCallbacks)
1807                         {
1808                                 if (!Page.ClientScript.IsClientScriptIncludeRegistered (typeof(GridView), "GridView.js")) {
1809                                         string url = Page.ClientScript.GetWebResourceUrl (typeof(GridView), "GridView.js");
1810                                         Page.ClientScript.RegisterClientScriptInclude (typeof(GridView), "GridView.js", url);
1811                                 }
1812
1813                                 string cgrid = ClientID + "_data";
1814                                 string script = string.Format ("var {0} = new Object ();\n", cgrid);
1815                                 script += string.Format ("{0}.pageIndex = {1};\n", cgrid, ClientScriptManager.GetScriptLiteral (PageIndex));
1816                                 script += string.Format ("{0}.sortExp = {1};\n", cgrid, ClientScriptManager.GetScriptLiteral (SortExpression == null ? "" : SortExpression));
1817                                 script += string.Format ("{0}.uid = {1};\n", cgrid, ClientScriptManager.GetScriptLiteral (UniqueID));
1818                                 Page.ClientScript.RegisterStartupScript (typeof(TreeView), this.UniqueID, script, true);
1819
1820                                 // Make sure the basic script infrastructure is rendered
1821                                 Page.ClientScript.GetCallbackEventReference (this, "null", "", "null");
1822                                 Page.ClientScript.GetPostBackClientHyperlink (this, "");
1823                         }
1824                 }
1825
1826                 protected internal override void Render (HtmlTextWriter writer)
1827                 {
1828                         if (EnableSortingAndPagingCallbacks)
1829                                 base.RenderBeginTag (writer);
1830                         else
1831                                 writer.RenderBeginTag (HtmlTextWriterTag.Div);
1832
1833                         RenderGrid (writer);
1834
1835                         if (EnableSortingAndPagingCallbacks)
1836                                 base.RenderEndTag (writer);
1837                         else
1838                                 writer.RenderEndTag ();
1839                 }
1840
1841                 void RenderGrid (HtmlTextWriter writer)
1842                 {
1843                         if (table == null)
1844                                 return;
1845
1846                         table.GridLines = GridLines;
1847                         table.RenderBeginTag (writer);
1848
1849                         foreach (GridViewRow row in table.Rows)
1850                         {
1851                                 switch (row.RowType) {
1852                                 case DataControlRowType.Header:
1853                                         if (!ShowHeader) continue;
1854                                         if (headerStyle != null)headerStyle.AddAttributesToRender (writer, row);
1855                                         break;
1856                                 case DataControlRowType.Footer:
1857                                         if (!ShowFooter) continue;
1858                                         if (footerStyle != null) footerStyle.AddAttributesToRender (writer, row);
1859                                         break;
1860                                 case DataControlRowType.Pager:
1861                                         if (pagerStyle != null) pagerStyle.AddAttributesToRender (writer, row);
1862                                         break;
1863                                 case DataControlRowType.EmptyDataRow:
1864                                         if (emptyDataRowStyle != null) emptyDataRowStyle.AddAttributesToRender (writer, row);
1865                                         break;
1866                                 default:
1867                                         break;
1868                                 }
1869
1870                                 if ((row.RowState & DataControlRowState.Normal) != 0 && rowStyle != null)
1871                                         rowStyle.AddAttributesToRender (writer, row);
1872                                 if ((row.RowState & DataControlRowState.Alternate) != 0 && alternatingRowStyle != null)
1873                                         alternatingRowStyle.AddAttributesToRender (writer, row);
1874                                 if ((row.RowState & DataControlRowState.Edit) != 0 && editRowStyle != null)
1875                                         editRowStyle.AddAttributesToRender (writer, row);
1876                                 if ((row.RowState & DataControlRowState.Selected) != 0 && selectedRowStyle != null)
1877                                         selectedRowStyle.AddAttributesToRender (writer, row);
1878
1879                                 row.RenderBeginTag (writer);
1880
1881                                 foreach (TableCell cell in row.Cells) {
1882                                         DataControlFieldCell fcell = cell as DataControlFieldCell;
1883                                         if (fcell != null) {
1884                                                 Style cellStyle = null;
1885                                                 switch (row.RowType) {
1886                                                 case DataControlRowType.Header: cellStyle = fcell.ContainingField.HeaderStyle; break;
1887                                                 case DataControlRowType.Footer: cellStyle = fcell.ContainingField.FooterStyle; break;
1888                                                 default: cellStyle = fcell.ContainingField.ItemStyle; break;
1889                                                 }
1890                                                 if (cellStyle != null)
1891                                                         cellStyle.AddAttributesToRender (writer, cell);
1892                                         }
1893                                         cell.Render (writer);
1894                                 }
1895                                 row.RenderEndTag (writer);
1896                         }
1897                         table.RenderEndTag (writer);
1898                 }
1899
1900                 [MonoTODO]
1901                 PostBackOptions IPostBackContainer.GetPostBackOptions (IButtonControl control)
1902                 {
1903                         PostBackOptions pbo = new PostBackOptions (this, control.CommandName + "$" + control.CommandArgument);
1904                         return pbo;
1905                 }
1906         }
1907 }
1908
1909 #endif