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

   1 //
   2 // System.Web.UI.WebControls.FormView.cs
   3 //
   4 // Authors:
   5 //      Lluis Sanchez Gual (lluis@novell.com)
   6 //
   7 // (C) 2005-2010 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 using System;
  30 using System.Collections;
  31 using System.Collections.Specialized;
  32 using System.ComponentModel;
  33 using System.Web.UI;
  34 using System.Security.Permissions;
  35 using System.Text;
  36 using System.IO;
  37 using System.Reflection;
  38
  39 namespace System.Web.UI.WebControls
  40 {
  41         [SupportsEventValidation]
  42         [DesignerAttribute ("System.Web.UI.Design.WebControls.FormViewDesigner, " + Consts.AssemblySystem_Design, "System.ComponentModel.Design.IDesigner")]
  43         [ControlValuePropertyAttribute ("SelectedValue")]
  44         [DefaultEventAttribute ("PageIndexChanging")]
  45 #if NET_4_0
  46         [DataKeyProperty ("DataKey")]
  47 #endif
  48         [AspNetHostingPermissionAttribute (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  49         [AspNetHostingPermissionAttribute (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  50         public class FormView: CompositeDataBoundControl, IDataItemContainer, INamingContainer, IPostBackEventHandler, IPostBackContainer
  51 #if NET_4_0
  52                 , IDataBoundItemControl, IDataBoundControl, IRenderOuterTable
  53 #endif
  54         {
  55                 object dataItem;
  56
  57                 Table table;
  58                 FormViewRow headerRow;
  59                 FormViewRow footerRow;
  60                 FormViewRow bottomPagerRow;
  61                 FormViewRow topPagerRow;
  62                 FormViewRow itemRow;
  63
  64                 IOrderedDictionary currentEditRowKeys;
  65                 IOrderedDictionary currentEditNewValues;
  66                 IOrderedDictionary currentEditOldValues;
  67
  68                 ITemplate pagerTemplate;
  69                 ITemplate emptyDataTemplate;
  70                 ITemplate headerTemplate;
  71                 ITemplate footerTemplate;
  72                 ITemplate editItemTemplate;
  73                 ITemplate insertItemTemplate;
  74                 ITemplate itemTemplate;
  75
  76                 PropertyDescriptor[] cachedKeyProperties;
  77                 readonly string[] emptyKeys = new string[0];
  78                 readonly string unhandledEventExceptionMessage = "The FormView '{0}' fired event {1} which wasn't handled.";
  79
  80                 // View state
  81                 PagerSettings pagerSettings;
  82
  83                 TableItemStyle editRowStyle;
  84                 TableItemStyle insertRowStyle;
  85                 TableItemStyle emptyDataRowStyle;
  86                 TableItemStyle footerStyle;
  87                 TableItemStyle headerStyle;
  88                 TableItemStyle pagerStyle;
  89                 TableItemStyle rowStyle;
  90
  91                 IOrderedDictionary _keyTable;
  92                 DataKey key;
  93                 DataKey oldEditValues;
  94 #if NET_4_0
  95                 bool renderOuterTable = true;
  96 #endif
  97                 static readonly object PageIndexChangedEvent = new object();
  98                 static readonly object PageIndexChangingEvent = new object();
  99                 static readonly object ItemCommandEvent = new object();
 100                 static readonly object ItemCreatedEvent = new object();
 101                 static readonly object ItemDeletedEvent = new object();
 102                 static readonly object ItemDeletingEvent = new object();
 103                 static readonly object ItemInsertedEvent = new object();
 104                 static readonly object ItemInsertingEvent = new object();
 105                 static readonly object ModeChangingEvent = new object();
 106                 static readonly object ModeChangedEvent = new object();
 107                 static readonly object ItemUpdatedEvent = new object();
 108                 static readonly object ItemUpdatingEvent = new object();
 109
 110                 // Control state
 111                 int pageIndex;
 112                 FormViewMode currentMode = FormViewMode.ReadOnly;
 113                 bool hasCurrentMode;
 114                 int pageCount;
 115
 116                 public event EventHandler PageIndexChanged {
 117                         add { Events.AddHandler (PageIndexChangedEvent, value); }
 118                         remove { Events.RemoveHandler (PageIndexChangedEvent, value); }
 119                 }
 120
 121                 public event FormViewPageEventHandler PageIndexChanging {
 122                         add { Events.AddHandler (PageIndexChangingEvent, value); }
 123                         remove { Events.RemoveHandler (PageIndexChangingEvent, value); }
 124                 }
 125
 126                 public event FormViewCommandEventHandler ItemCommand {
 127                         add { Events.AddHandler (ItemCommandEvent, value); }
 128                         remove { Events.RemoveHandler (ItemCommandEvent, value); }
 129                 }
 130
 131                 public event EventHandler ItemCreated {
 132                         add { Events.AddHandler (ItemCreatedEvent, value); }
 133                         remove { Events.RemoveHandler (ItemCreatedEvent, value); }
 134                 }
 135
 136                 public event FormViewDeletedEventHandler ItemDeleted {
 137                         add { Events.AddHandler (ItemDeletedEvent, value); }
 138                         remove { Events.RemoveHandler (ItemDeletedEvent, value); }
 139                 }
 140
 141                 public event FormViewDeleteEventHandler ItemDeleting {
 142                         add { Events.AddHandler (ItemDeletingEvent, value); }
 143                         remove { Events.RemoveHandler (ItemDeletingEvent, value); }
 144                 }
 145
 146                 public event FormViewInsertedEventHandler ItemInserted {
 147                         add { Events.AddHandler (ItemInsertedEvent, value); }
 148                         remove { Events.RemoveHandler (ItemInsertedEvent, value); }
 149                 }
 150
 151                 public event FormViewInsertEventHandler ItemInserting {
 152                         add { Events.AddHandler (ItemInsertingEvent, value); }
 153                         remove { Events.RemoveHandler (ItemInsertingEvent, value); }
 154                 }
 155
 156                 public event FormViewModeEventHandler ModeChanging {
 157                         add { Events.AddHandler (ModeChangingEvent, value); }
 158                         remove { Events.RemoveHandler (ModeChangingEvent, value); }
 159                 }
 160
 161                 public event EventHandler ModeChanged {
 162                         add { Events.AddHandler (ModeChangedEvent, value); }
 163                         remove { Events.RemoveHandler (ModeChangedEvent, value); }
 164                 }
 165
 166                 public event FormViewUpdatedEventHandler ItemUpdated {
 167                         add { Events.AddHandler (ItemUpdatedEvent, value); }
 168                         remove { Events.RemoveHandler (ItemUpdatedEvent, value); }
 169                 }
 170
 171                 public event FormViewUpdateEventHandler ItemUpdating {
 172                         add { Events.AddHandler (ItemUpdatingEvent, value); }
 173                         remove { Events.RemoveHandler (ItemUpdatingEvent, value); }
 174                 }
 175
 176                 protected virtual void OnPageIndexChanged (EventArgs e)
 177                 {
 178                         if (Events != null) {
 179                                 EventHandler eh = (EventHandler) Events [PageIndexChangedEvent];
 180                                 if (eh != null) eh (this, e);
 181                         }
 182                 }
 183
 184                 protected virtual void OnPageIndexChanging (FormViewPageEventArgs e)
 185                 {
 186                         if (Events != null) {
 187                                 FormViewPageEventHandler eh = (FormViewPageEventHandler) Events [PageIndexChangingEvent];
 188                                 if (eh != null) {
 189                                         eh (this, e);
 190                                         return;
 191                                 }
 192                         }
 193                         if (!IsBoundUsingDataSourceID)
 194                                 throw new HttpException (String.Format (unhandledEventExceptionMessage, ID, "PageIndexChanging"));
 195                 }
 196
 197                 protected virtual void OnItemCommand (FormViewCommandEventArgs e)
 198                 {
 199                         if (Events != null) {
 200                                 FormViewCommandEventHandler eh = (FormViewCommandEventHandler) Events [ItemCommandEvent];
 201                                 if (eh != null) eh (this, e);
 202                         }
 203                 }
 204
 205                 protected virtual void OnItemCreated (EventArgs e)
 206                 {
 207                         if (Events != null) {
 208                                 EventHandler eh = (EventHandler) Events [ItemCreatedEvent];
 209                                 if (eh != null) eh (this, e);
 210                         }
 211                 }
 212
 213                 protected virtual void OnItemDeleted (FormViewDeletedEventArgs e)
 214                 {
 215                         if (Events != null) {
 216                                 FormViewDeletedEventHandler eh = (FormViewDeletedEventHandler) Events [ItemDeletedEvent];
 217                                 if (eh != null) eh (this, e);
 218                         }
 219                 }
 220
 221                 protected virtual void OnItemInserted (FormViewInsertedEventArgs e)
 222                 {
 223                         if (Events != null) {
 224                                 FormViewInsertedEventHandler eh = (FormViewInsertedEventHandler) Events [ItemInsertedEvent];
 225                                 if (eh != null) eh (this, e);
 226                         }
 227                 }
 228
 229                 protected virtual void OnItemInserting (FormViewInsertEventArgs e)
 230                 {
 231                         if (Events != null) {
 232                                 FormViewInsertEventHandler eh = (FormViewInsertEventHandler) Events [ItemInsertingEvent];
 233                                 if (eh != null) {
 234                                         eh (this, e);
 235                                         return;
 236                                 }
 237                         }
 238                         if (!IsBoundUsingDataSourceID)
 239                                 throw new HttpException (String.Format (unhandledEventExceptionMessage, ID, "ItemInserting"));
 240                 }
 241
 242                 protected virtual void OnItemDeleting (FormViewDeleteEventArgs e)
 243                 {
 244                         if (Events != null) {
 245                                 FormViewDeleteEventHandler eh = (FormViewDeleteEventHandler) Events [ItemDeletingEvent];
 246                                 if (eh != null) {
 247                                         eh (this, e);
 248                                         return;
 249                                 }
 250                         }
 251                         if (!IsBoundUsingDataSourceID)
 252                                 throw new HttpException (String.Format (unhandledEventExceptionMessage, ID, "ItemDeleting"));
 253                 }
 254
 255                 protected virtual void OnModeChanged (EventArgs e)
 256                 {
 257                         if (Events != null) {
 258                                 EventHandler eh = (EventHandler) Events [ModeChangedEvent];
 259                                 if (eh != null) eh (this, e);
 260                         }
 261                 }
 262
 263                 protected virtual void OnModeChanging (FormViewModeEventArgs e)
 264                 {
 265                         if (Events != null) {
 266                                 FormViewModeEventHandler eh = (FormViewModeEventHandler) Events [ModeChangingEvent];
 267                                 if (eh != null) {
 268                                         eh (this, e);
 269                                         return;
 270                                 }
 271                         }
 272                         if (!IsBoundUsingDataSourceID)
 273                                 throw new HttpException (String.Format (unhandledEventExceptionMessage, ID, "ModeChanging"));
 274                 }
 275
 276                 protected virtual void OnItemUpdated (FormViewUpdatedEventArgs e)
 277                 {
 278                         if (Events != null) {
 279                                 FormViewUpdatedEventHandler eh = (FormViewUpdatedEventHandler) Events [ItemUpdatedEvent];
 280                                 if (eh != null) eh (this, e);
 281                         }
 282                 }
 283
 284                 protected virtual void OnItemUpdating (FormViewUpdateEventArgs e)
 285                 {
 286                         if (Events != null) {
 287                                 FormViewUpdateEventHandler eh = (FormViewUpdateEventHandler) Events [ItemUpdatingEvent];
 288                                 if (eh != null) {
 289                                         eh (this, e);
 290                                         return;
 291                                 }
 292                         }
 293                         if (!IsBoundUsingDataSourceID)
 294                                 throw new HttpException (String.Format (unhandledEventExceptionMessage, ID, "ItemUpdating"));
 295                 }
 296
 297
 298                 [WebCategoryAttribute ("Paging")]
 299                 [DefaultValueAttribute (false)]
 300                 public virtual bool AllowPaging {
 301                         get {
 302                                 object ob = ViewState ["AllowPaging"];
 303                                 if (ob != null)
 304                                         return (bool) ob;
 305                                 return false;
 306                         }
 307                         set {
 308                                 ViewState ["AllowPaging"] = value;
 309                                 RequireBinding ();
 310                         }
 311                 }
 312
 313                 [UrlPropertyAttribute]
 314                 [WebCategoryAttribute ("Appearance")]
 315                 [DefaultValueAttribute ("")]
 316                 [EditorAttribute ("System.Web.UI.Design.ImageUrlEditor, " + Consts.AssemblySystem_Design, "System.Drawing.Design.UITypeEditor, " + Consts.AssemblySystem_Drawing)]
 317                 public virtual string BackImageUrl {
 318                         get {
 319                                 if (ControlStyleCreated)
 320                                         return ((TableStyle) ControlStyle).BackImageUrl;
 321                                 return String.Empty;
 322                         }
 323                         set {
 324                                 ((TableStyle) ControlStyle).BackImageUrl = value;
 325                         }
 326                 }
 327
 328                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 329                 [BrowsableAttribute (false)]
 330                 public virtual FormViewRow BottomPagerRow {
 331                         get {
 332                                 EnsureChildControls ();
 333                                 return bottomPagerRow;
 334                         }
 335                 }
 336
 337                 [WebCategoryAttribute ("Accessibility")]
 338                 [DefaultValueAttribute ("")]
 339                 [LocalizableAttribute (true)]
 340                 public virtual string Caption {
 341                         get {
 342                                 object ob = ViewState ["Caption"];
 343                                 if (ob != null)
 344                                         return (string) ob;
 345                                 return String.Empty;
 346                         }
 347                         set {
 348                                 ViewState ["Caption"] = value;
 349                                 RequireBinding ();
 350                         }
 351                 }
 352
 353                 [WebCategoryAttribute ("Accessibility")]
 354                 [DefaultValueAttribute (TableCaptionAlign.NotSet)]
 355                 public virtual TableCaptionAlign CaptionAlign {
 356                         get {
 357                                 object o = ViewState ["CaptionAlign"];
 358                                 if(o != null)
 359                                         return (TableCaptionAlign) o;
 360                                 return TableCaptionAlign.NotSet;
 361                         }
 362                         set {
 363                                 ViewState ["CaptionAlign"] = value;
 364                                 RequireBinding ();
 365                         }
 366                 }
 367
 368                 [WebCategoryAttribute ("Layout")]
 369                 [DefaultValueAttribute (-1)]
 370                 public virtual int CellPadding {
 371                         get {
 372                                 if (ControlStyleCreated)
 373                                         return ((TableStyle) ControlStyle).CellPadding;
 374                                 return -1;
 375                         }
 376                         set { ((TableStyle) ControlStyle).CellPadding = value; }
 377                 }
 378
 379                 [WebCategoryAttribute ("Layout")]
 380                 [DefaultValueAttribute (0)]
 381                 public virtual int CellSpacing {
 382                         get {
 383                                 if (ControlStyleCreated)
 384                                         return ((TableStyle) ControlStyle).CellSpacing;
 385                                 return 0;
 386                         }
 387
 388                         set { ((TableStyle) ControlStyle).CellSpacing = value; }
 389                 }
 390
 391                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 392                 [BrowsableAttribute (false)]
 393                 public FormViewMode CurrentMode {
 394                         get { return hasCurrentMode ? currentMode : DefaultMode; }
 395                         private set {
 396                                 hasCurrentMode = true;
 397                                 currentMode = value;
 398                         }
 399                 }
 400
 401                 FormViewMode defaultMode;
 402
 403                 [DefaultValueAttribute (FormViewMode.ReadOnly)]
 404                 [WebCategoryAttribute ("Behavior")]
 405                 public virtual FormViewMode DefaultMode {
 406                         get { return defaultMode; }
 407                         set {
 408                                 defaultMode = value;
 409                                 RequireBinding ();
 410                         }
 411                 }
 412
 413                 string[] dataKeyNames;
 414                 [DefaultValueAttribute (null)]
 415                 [WebCategoryAttribute ("Data")]
 416                 [TypeConverter (typeof(StringArrayConverter))]
 417                 [EditorAttribute ("System.Web.UI.Design.WebControls.DataFieldEditor, " + Consts.AssemblySystem_Design, "System.Drawing.Design.UITypeEditor, " + Consts.AssemblySystem_Drawing)]
 418                 public virtual string[] DataKeyNames {
 419                         get {
 420                                 if (dataKeyNames == null)
 421                                         return emptyKeys;
 422                                 return dataKeyNames;
 423                         }
 424                         set {
 425                                 dataKeyNames = value;
 426                                 RequireBinding ();
 427                         }
 428                 }
 429
 430                 IOrderedDictionary KeyTable {
 431                         get {
 432                                 if (_keyTable == null)
 433                                         _keyTable = new OrderedDictionary (DataKeyNames.Length);
 434                                 return _keyTable;
 435                         }
 436                 }
 437
 438                 [BrowsableAttribute (false)]
 439                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 440                 public virtual DataKey DataKey {
 441                         get {
 442                                 if (key == null)
 443                                         key= new DataKey (KeyTable);
 444                                 return key;
 445                         }
 446                 }
 447
 448                 DataKey OldEditValues {
 449                         get {
 450                                 if (oldEditValues == null)
 451                                         oldEditValues = new DataKey (new OrderedDictionary ());
 452                                 return oldEditValues;
 453                         }
 454                 }
 455
 456                 [DefaultValue (null)]
 457                 [TemplateContainer (typeof(FormView), BindingDirection.TwoWay)]
 458                 [PersistenceMode (PersistenceMode.InnerProperty)]
 459                 [Browsable (false)]
 460                 public virtual ITemplate EditItemTemplate {
 461                         get { return editItemTemplate; }
 462                         set { editItemTemplate = value; }
 463                 }
 464
 465                 [WebCategoryAttribute ("Styles")]
 466                 [PersistenceMode (PersistenceMode.InnerProperty)]
 467                 [NotifyParentProperty (true)]
 468                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
 469                 [DefaultValueAttribute (null)]
 470                 public TableItemStyle EditRowStyle {
 471                         get {
 472                                 if (editRowStyle == null) {
 473                                         editRowStyle = new TableItemStyle ();
 474                                         if (IsTrackingViewState)
 475                                                 editRowStyle.TrackViewState();
 476                                 }
 477                                 return editRowStyle;
 478                         }
 479                 }
 480
 481                 [WebCategoryAttribute ("Styles")]
 482                 [PersistenceMode (PersistenceMode.InnerProperty)]
 483                 [NotifyParentProperty (true)]
 484                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
 485                 [DefaultValueAttribute (null)]
 486                 public TableItemStyle EmptyDataRowStyle {
 487                         get {
 488                                 if (emptyDataRowStyle == null) {
 489                                         emptyDataRowStyle = new TableItemStyle ();
 490                                         if (IsTrackingViewState)
 491                                                 emptyDataRowStyle.TrackViewState();
 492                                 }
 493                                 return emptyDataRowStyle;
 494                         }
 495                 }
 496
 497                 [DefaultValue (null)]
 498                 [TemplateContainer (typeof(FormView), BindingDirection.OneWay)]
 499                 [PersistenceMode (PersistenceMode.InnerProperty)]
 500                 [Browsable (false)]
 501                 public virtual ITemplate EmptyDataTemplate {
 502                         get { return emptyDataTemplate; }
 503                         set { emptyDataTemplate = value; }
 504                 }
 505
 506                 [LocalizableAttribute (true)]
 507                 [WebCategoryAttribute ("Appearance")]
 508                 [DefaultValueAttribute ("")]
 509                 public virtual string EmptyDataText {
 510                         get {
 511                                 object ob = ViewState ["EmptyDataText"];
 512                                 if (ob != null)
 513                                         return (string) ob;
 514                                 return String.Empty;
 515                         }
 516                         set {
 517                                 ViewState ["EmptyDataText"] = value;
 518                                 RequireBinding ();
 519                         }
 520                 }
 521
 522                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 523                 [BrowsableAttribute (false)]
 524                 public virtual FormViewRow FooterRow {
 525                         get {
 526                                 EnsureChildControls ();
 527                                 return footerRow;
 528                         }
 529                 }
 530
 531                 [DefaultValue (null)]
 532                 [TemplateContainer (typeof(FormView), BindingDirection.OneWay)]
 533                 [PersistenceMode (PersistenceMode.InnerProperty)]
 534                 [Browsable (false)]
 535                 public virtual ITemplate FooterTemplate {
 536                         get { return footerTemplate; }
 537                         set { footerTemplate = value; }
 538                 }
 539
 540                 [LocalizableAttribute (true)]
 541                 [WebCategoryAttribute ("Appearance")]
 542                 [DefaultValueAttribute ("")]
 543                 public virtual string FooterText {
 544                         get {
 545                                 object ob = ViewState ["FooterText"];
 546                                 if (ob != null)
 547                                         return (string) ob;
 548                                 return String.Empty;
 549                         }
 550                         set {
 551                                 ViewState ["FooterText"] = value;
 552                                 RequireBinding ();
 553                         }
 554                 }
 555
 556                 [WebCategoryAttribute ("Styles")]
 557                 [PersistenceMode (PersistenceMode.InnerProperty)]
 558                 [NotifyParentProperty (true)]
 559                 [DefaultValue (null)]
 560                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
 561                 public TableItemStyle FooterStyle {
 562                         get {
 563                                 if (footerStyle == null) {
 564                                         footerStyle = new TableItemStyle ();
 565                                         if (IsTrackingViewState)
 566                                                 footerStyle.TrackViewState();
 567                                 }
 568                                 return footerStyle;
 569                         }
 570                 }
 571
 572                 [WebCategoryAttribute ("Appearance")]
 573                 [DefaultValueAttribute (GridLines.None)]
 574                 public virtual GridLines GridLines {
 575                         get {
 576                                 if (ControlStyleCreated)
 577                                         return ((TableStyle) ControlStyle).GridLines;
 578                                 return GridLines.None;
 579                         }
 580                         set { ((TableStyle) ControlStyle).GridLines = value; }
 581                 }
 582
 583                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 584                 [BrowsableAttribute (false)]
 585                 public virtual FormViewRow HeaderRow {
 586                         get {
 587                                 EnsureChildControls ();
 588                                 return headerRow;
 589                         }
 590                 }
 591
 592                 [WebCategoryAttribute ("Styles")]
 593                 [PersistenceMode (PersistenceMode.InnerProperty)]
 594                 [NotifyParentProperty (true)]
 595                 [DefaultValue (null)]
 596                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
 597                 public TableItemStyle HeaderStyle {
 598                         get {
 599                                 if (headerStyle == null) {
 600                                         headerStyle = new TableItemStyle ();
 601                                         if (IsTrackingViewState)
 602                                                 headerStyle.TrackViewState();
 603                                 }
 604                                 return headerStyle;
 605                         }
 606                 }
 607
 608                 [DefaultValue (null)]
 609                 [TemplateContainer (typeof(FormView), BindingDirection.OneWay)]
 610                 [PersistenceMode (PersistenceMode.InnerProperty)]
 611                 [Browsable (false)]
 612                 public virtual ITemplate HeaderTemplate {
 613                         get { return headerTemplate; }
 614                         set { headerTemplate = value; }
 615                 }
 616
 617                 [LocalizableAttribute (true)]
 618                 [WebCategoryAttribute ("Appearance")]
 619                 [DefaultValueAttribute ("")]
 620                 public virtual string HeaderText {
 621                         get {
 622                                 object ob = ViewState ["HeaderText"];
 623                                 if (ob != null)
 624                                         return (string) ob;
 625                                 return String.Empty;
 626                         }
 627                         set {
 628                                 ViewState ["HeaderText"] = value;
 629                                 RequireBinding ();
 630                         }
 631                 }
 632
 633                 [Category ("Layout")]
 634                 [DefaultValueAttribute (HorizontalAlign.NotSet)]
 635                 public virtual HorizontalAlign HorizontalAlign {
 636                         get {
 637                                 if (ControlStyleCreated)
 638                                         return ((TableStyle) ControlStyle).HorizontalAlign;
 639                                 return HorizontalAlign.NotSet;
 640                         }
 641                         set { ((TableStyle) ControlStyle).HorizontalAlign = value; }
 642                 }
 643
 644                 [DefaultValue (null)]
 645                 [TemplateContainer (typeof(FormView), BindingDirection.TwoWay)]
 646                 [PersistenceMode (PersistenceMode.InnerProperty)]
 647                 [Browsable (false)]
 648                 public virtual ITemplate InsertItemTemplate {
 649                         get { return insertItemTemplate; }
 650                         set { insertItemTemplate = value; }
 651                 }
 652
 653                 [WebCategoryAttribute ("Styles")]
 654                 [PersistenceMode (PersistenceMode.InnerProperty)]
 655                 [NotifyParentProperty (true)]
 656                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
 657                 [DefaultValueAttribute (null)]
 658                 public TableItemStyle InsertRowStyle {
 659                         get {
 660                                 if (insertRowStyle == null) {
 661                                         insertRowStyle = new TableItemStyle ();
 662                                         if (IsTrackingViewState)
 663                                                 insertRowStyle.TrackViewState();
 664                                 }
 665                                 return insertRowStyle;
 666                         }
 667                 }
 668
 669                 [DefaultValue (null)]
 670                 [TemplateContainer (typeof(FormView), BindingDirection.TwoWay)]
 671                 [PersistenceMode (PersistenceMode.InnerProperty)]
 672                 [Browsable (false)]
 673                 public virtual ITemplate ItemTemplate {
 674                         get { return itemTemplate; }
 675                         set { itemTemplate = value; }
 676                 }
 677
 678                 [BrowsableAttribute (false)]
 679                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 680                 public virtual int PageCount {
 681                         get { return pageCount; }
 682                         private set { pageCount = value; }
 683                 }
 684
 685                 [WebCategoryAttribute ("Paging")]
 686                 [BindableAttribute (true, BindingDirection.OneWay)]
 687                 [DefaultValueAttribute (0)]
 688                 public virtual int PageIndex {
 689                         get { return pageIndex; }
 690                         set {
 691                                 if (value < -1)
 692                                         throw new ArgumentOutOfRangeException ("PageIndex must be non-negative");
 693                                 if (pageIndex == value || value == -1)
 694                                         return;
 695                                 pageIndex = value;
 696                                 RequireBinding ();
 697                         }
 698                 }
 699
 700                 [WebCategoryAttribute ("Paging")]
 701                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Content)]
 702                 [NotifyParentPropertyAttribute (true)]
 703                 [PersistenceModeAttribute (PersistenceMode.InnerProperty)]
 704                 public virtual PagerSettings PagerSettings {
 705                         get {
 706                                 if (pagerSettings == null) {
 707                                         pagerSettings = new PagerSettings (this);
 708                                         if (IsTrackingViewState)
 709                                                 ((IStateManager)pagerSettings).TrackViewState ();
 710                                 }
 711                                 return pagerSettings;
 712                         }
 713                 }
 714
 715                 [WebCategoryAttribute ("Styles")]
 716                 [PersistenceMode (PersistenceMode.InnerProperty)]
 717                 [NotifyParentProperty (true)]
 718                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
 719                 public TableItemStyle PagerStyle {
 720                         get {
 721                                 if (pagerStyle == null) {
 722                                         pagerStyle = new TableItemStyle ();
 723                                         if (IsTrackingViewState)
 724                                                 pagerStyle.TrackViewState();
 725                                 }
 726                                 return pagerStyle;
 727                         }
 728                 }
 729
 730
 731                 [DefaultValue (null)]
 732                 [TemplateContainerAttribute (typeof (FormView))]
 733                 [PersistenceMode (PersistenceMode.InnerProperty)]
 734                 [Browsable (false)]
 735                 public virtual ITemplate PagerTemplate {
 736                         get { return pagerTemplate; }
 737                         set { pagerTemplate = value; }
 738                 }
 739
 740                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 741                 [BrowsableAttribute (false)]
 742                 public virtual FormViewRow Row {
 743                         get {
 744                                 EnsureChildControls ();
 745                                 return itemRow;
 746                         }
 747                 }
 748
 749                 [WebCategoryAttribute ("Styles")]
 750                 [PersistenceMode (PersistenceMode.InnerProperty)]
 751                 [NotifyParentProperty (true)]
 752                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
 753                 [DefaultValue (null)]
 754                 public TableItemStyle RowStyle {
 755                         get {
 756                                 if (rowStyle == null) {
 757                                         rowStyle = new TableItemStyle ();
 758                                         if (IsTrackingViewState)
 759                                                 rowStyle.TrackViewState();
 760                                 }
 761                                 return rowStyle;
 762                         }
 763                 }
 764
 765                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 766                 [BrowsableAttribute (false)]
 767                 public object SelectedValue {
 768                         get { return DataKey.Value; }
 769                 }
 770
 771                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 772                 [BrowsableAttribute (false)]
 773                 public virtual FormViewRow TopPagerRow {
 774                         get {
 775                                 EnsureChildControls ();
 776                                 return topPagerRow;
 777                         }
 778                 }
 779
 780                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 781                 [BrowsableAttribute (false)]
 782                 public virtual object DataItem {
 783                         get { return dataItem; }
 784                 }
 785
 786                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 787                 [BrowsableAttribute (false)]
 788                 public int DataItemCount {
 789                         get { return PageCount; }
 790                 }
 791
 792                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 793                 [BrowsableAttribute (false)]
 794                 public virtual int DataItemIndex {
 795                         get { return PageIndex; }
 796                 }
 797
 798                 int IDataItemContainer.DataItemIndex {
 799                         get { return DataItemIndex; }
 800                 }
 801
 802                 int IDataItemContainer.DisplayIndex {
 803                         get { return PageIndex; }
 804                 }
 805
 806                 [MonoTODO ("Make use of it in the code")]
 807                 [DefaultValue (true)]
 808                 public virtual bool EnableModelValidation {
 809                         get;
 810                         set;
 811                 }
 812 #if NET_4_0
 813                 [DefaultValue (true)]
 814                 public virtual bool RenderOuterTable {
 815                         get { return renderOuterTable; }
 816                         set { renderOuterTable = value; }
 817                 }
 818
 819                 DataBoundControlMode IDataBoundItemControl.Mode {
 820                         get {
 821                                 switch (CurrentMode) {
 822                                         case FormViewMode.ReadOnly:
 823                                                 return DataBoundControlMode.ReadOnly;
 824
 825                                         case FormViewMode.Edit:
 826                                                 return DataBoundControlMode.Edit;
 827
 828                                         case FormViewMode.Insert:
 829                                                 return DataBoundControlMode.Insert;
 830
 831                                         default:
 832                                                 throw new InvalidOperationException ("Unsupported mode value.");
 833                                 }
 834                         }
 835                 }
 836
 837                 protected internal virtual string ModifiedOuterTableStylePropertyName ()
 838                 {
 839                         if (BackImageUrl != String.Empty)
 840                                 return "BackImageUrl";
 841
 842                         if (CellPadding != -1)
 843                                 return "CellPadding";
 844
 845                         if (CellSpacing != 0)
 846                                 return "CellSpacing";
 847
 848                         if (GridLines != GridLines.None)
 849                                 return "GridLines";
 850
 851                         if (HorizontalAlign != HorizontalAlign.NotSet)
 852                                 return "HorizontalAlign";
 853
 854                         if (ControlStyle.CheckBit ((int)global::System.Web.UI.WebControls.Style.Styles.FontAll))
 855                                 return "Font";
 856
 857                         return String.Empty;
 858                 }
 859
 860                 internal override string InlinePropertiesSet ()
 861                 {
 862                         string baseProps = base.InlinePropertiesSet ();
 863                         string props = ModifiedOuterTableStylePropertyName ();
 864                         if (String.IsNullOrEmpty (props))
 865                                 return baseProps;
 866
 867                         if (String.IsNullOrEmpty (baseProps))
 868                                 return props;
 869
 870                         return baseProps + ", " + props;
 871                 }
 872 #endif
 873                 public virtual bool IsBindableType (Type type)
 874                 {
 875                         return type.IsPrimitive || type == typeof (string) || type == typeof (DateTime) || type == typeof (Guid) || type == typeof (Decimal);
 876                 }
 877
 878                 protected override DataSourceSelectArguments CreateDataSourceSelectArguments ()
 879                 {
 880                         DataSourceSelectArguments arg = new DataSourceSelectArguments ();
 881                         DataSourceView view = GetData ();
 882                         if (AllowPaging && view.CanPage) {
 883                                 arg.StartRowIndex = PageIndex;
 884                                 if (view.CanRetrieveTotalRowCount) {
 885                                         arg.RetrieveTotalRowCount = true;
 886                                         arg.MaximumRows = 1;
 887                                 } else
 888                                         arg.MaximumRows = -1;
 889                         }
 890                         return arg;
 891                 }
 892
 893                 protected virtual FormViewRow CreateRow (int rowIndex, DataControlRowType rowType, DataControlRowState rowState)
 894                 {
 895                         if (rowType == DataControlRowType.Pager)
 896                                 return new FormViewPagerRow (rowIndex, rowType, rowState);
 897                         else
 898                                 return new FormViewRow (rowIndex, rowType, rowState);
 899                 }
 900
 901                 void RequireBinding ()
 902                 {
 903                         if (Initialized)
 904                                 RequiresDataBinding = true;
 905                 }
 906
 907                 protected virtual Table CreateTable ()
 908                 {
 909                         return new ContainedTable (this);
 910                 }
 911
 912                 protected override void EnsureDataBound ()
 913                 {
 914                         if (CurrentMode == FormViewMode.Insert) {
 915                                 if (RequiresDataBinding) {
 916                                         OnDataBinding (EventArgs.Empty);
 917                                         RequiresDataBinding = false;
 918                                         InternalPerformDataBinding (null);
 919                                         MarkAsDataBound ();
 920                                         OnDataBound (EventArgs.Empty);
 921                                 }
 922                         } else
 923                                 base.EnsureDataBound ();
 924                 }
 925
 926                 protected override Style CreateControlStyle ()
 927                 {
 928                         TableStyle style = new TableStyle (ViewState);
 929                         style.CellSpacing = 0;
 930                         return style;
 931                 }
 932
 933                 protected override int CreateChildControls (IEnumerable data, bool dataBinding)
 934                 {
 935                         PagedDataSource dataSource = new PagedDataSource ();
 936                         dataSource.DataSource = CurrentMode != FormViewMode.Insert ? data : null;
 937                         dataSource.AllowPaging = AllowPaging;
 938                         dataSource.PageSize = 1;
 939                         dataSource.CurrentPageIndex = PageIndex;
 940
 941                         if (dataBinding && CurrentMode != FormViewMode.Insert) {
 942                                 DataSourceView view = GetData ();
 943                                 if (view != null && view.CanPage) {
 944                                         dataSource.AllowServerPaging = true;
 945                                         if (SelectArguments.RetrieveTotalRowCount)
 946                                                 dataSource.VirtualCount = SelectArguments.TotalRowCount;
 947                                 }
 948                         }
 949
 950                         PagerSettings pagerSettings = PagerSettings;
 951                         bool showPager = AllowPaging && pagerSettings.Visible && (dataSource.PageCount > 1);
 952
 953                         Controls.Clear ();
 954                         table = CreateTable ();
 955                         Controls.Add (table);
 956                         headerRow = null;
 957                         footerRow = null;
 958                         topPagerRow = null;
 959                         bottomPagerRow = null;
 960
 961                         // Gets the current data item
 962
 963                         if (AllowPaging) {
 964                                 PageCount = dataSource.DataSourceCount;
 965                                 if (PageIndex >= PageCount && PageCount > 0)
 966                                         pageIndex = dataSource.CurrentPageIndex = PageCount - 1;
 967
 968                                 if (dataSource.DataSource != null) {
 969                                         IEnumerator e = dataSource.GetEnumerator ();
 970                                         if (e.MoveNext ())
 971                                                 dataItem = e.Current;
 972                                 }
 973                         } else {
 974                                 int page = 0;
 975                                 object lastItem = null;
 976                                 if (dataSource.DataSource != null) {
 977                                         IEnumerator e = dataSource.GetEnumerator ();
 978                                         for (; e.MoveNext (); page++) {
 979                                                 lastItem = e.Current;
 980                                                 if (page == PageIndex)
 981                                                         dataItem = e.Current;
 982                                         }
 983                                 }
 984                                 PageCount = page;
 985                                 if (PageIndex >= PageCount && PageCount > 0) {
 986                                         pageIndex = PageCount - 1;
 987                                         dataItem = lastItem;
 988                                 }
 989                         }
 990
 991                         // Main table creation
 992                         bool emptyRow = PageCount == 0 && CurrentMode != FormViewMode.Insert;
 993
 994                         if (!emptyRow) {
 995                                 headerRow = CreateRow (-1, DataControlRowType.Header, DataControlRowState.Normal);
 996                                 InitializeRow (headerRow);
 997                                 table.Rows.Add (headerRow);
 998                         }
 999
1000                         if (showPager && pagerSettings.Position == PagerPosition.Top || pagerSettings.Position == PagerPosition.TopAndBottom) {
1001                                 topPagerRow = CreateRow (-1, DataControlRowType.Pager, DataControlRowState.Normal);
1002                                 InitializePager (topPagerRow, dataSource);
1003                                 table.Rows.Add (topPagerRow);
1004                         }
1005
1006                         if (PageCount > 0) {
1007                                 DataControlRowState rstate = GetRowState ();
1008                                 itemRow = CreateRow (0, DataControlRowType.DataRow, rstate);
1009                                 InitializeRow (itemRow);
1010                                 table.Rows.Add (itemRow);
1011                         } else {
1012                                 switch (CurrentMode) {
1013                                         case FormViewMode.Edit:
1014                                                 itemRow = CreateRow (-1, DataControlRowType.EmptyDataRow, DataControlRowState.Edit);
1015                                                 break;
1016                                         case FormViewMode.Insert:
1017                                                 itemRow = CreateRow (-1, DataControlRowType.DataRow, DataControlRowState.Insert);
1018                                                 break;
1019                                         default:
1020                                                 itemRow = CreateRow (-1, DataControlRowType.EmptyDataRow, DataControlRowState.Normal);
1021                                                 break;
1022                                 }
1023                                 InitializeRow (itemRow);
1024                                 table.Rows.Add (itemRow);
1025                         }
1026
1027                         if (!emptyRow) {
1028                                 footerRow = CreateRow (-1, DataControlRowType.Footer, DataControlRowState.Normal);
1029                                 InitializeRow (footerRow);
1030                                 table.Rows.Add (footerRow);
1031                         }
1032
1033                         if (showPager && pagerSettings.Position == PagerPosition.Bottom || pagerSettings.Position == PagerPosition.TopAndBottom) {
1034                                 bottomPagerRow = CreateRow (0, DataControlRowType.Pager, DataControlRowState.Normal);
1035                                 InitializePager (bottomPagerRow, dataSource);
1036                                 table.Rows.Add (bottomPagerRow);
1037                         }
1038
1039                         OnItemCreated (EventArgs.Empty);
1040
1041                         if (dataBinding)
1042                                 DataBind (false);
1043
1044                         return PageCount;
1045                 }
1046
1047                 DataControlRowState GetRowState ()
1048                 {
1049                         DataControlRowState rstate = DataControlRowState.Normal;
1050                         if (CurrentMode == FormViewMode.Edit)
1051                                 rstate |= DataControlRowState.Edit;
1052                         else if (CurrentMode == FormViewMode.Insert)
1053                                 rstate |= DataControlRowState.Insert;
1054                         return rstate;
1055                 }
1056
1057                 protected virtual void InitializePager (FormViewRow row, PagedDataSource dataSource)
1058                 {
1059                         TableCell cell = new TableCell ();
1060                         cell.ColumnSpan = 2;
1061
1062                         if (pagerTemplate != null)
1063                                 pagerTemplate.InstantiateIn (cell);
1064                         else
1065                                 cell.Controls.Add (PagerSettings.CreatePagerControl (dataSource.CurrentPageIndex, dataSource.PageCount));
1066
1067                         row.Cells.Add (cell);
1068                 }
1069
1070                 protected virtual void InitializeRow (FormViewRow row)
1071                 {
1072                         TableCell cell = new TableCell ();
1073                         if (row.RowType == DataControlRowType.DataRow) {
1074                                 if ((row.RowState & DataControlRowState.Edit) != 0) {
1075                                         if (editItemTemplate != null)
1076                                                 editItemTemplate.InstantiateIn (cell);
1077                                         else
1078                                                 row.Visible = false;
1079                                 } else if ((row.RowState & DataControlRowState.Insert) != 0) {
1080                                         if (insertItemTemplate != null)
1081                                                 insertItemTemplate.InstantiateIn (cell);
1082                                         else
1083                                                 row.Visible = false;
1084                                 } else if (itemTemplate != null)
1085                                         itemTemplate.InstantiateIn (cell);
1086                                 else
1087                                         row.Visible = false;
1088                         } else if (row.RowType == DataControlRowType.EmptyDataRow) {
1089                                 if (emptyDataTemplate != null)
1090                                         emptyDataTemplate.InstantiateIn (cell);
1091                                 else if (!String.IsNullOrEmpty (EmptyDataText))
1092                                         cell.Text = EmptyDataText;
1093                                 else
1094                                         row.Visible = false;
1095                         } else if (row.RowType == DataControlRowType.Footer)
1096                         {
1097                                 if (footerTemplate != null)
1098                                         footerTemplate.InstantiateIn (cell);
1099                                 else if (!String.IsNullOrEmpty (FooterText))
1100                                         cell.Text = FooterText;
1101                                 else
1102                                         row.Visible = false;
1103                         } else if (row.RowType == DataControlRowType.Header)
1104                         {
1105                                 if (headerTemplate != null)
1106                                         headerTemplate.InstantiateIn (cell);
1107                                 else if (!String.IsNullOrEmpty (HeaderText))
1108                                         cell.Text = HeaderText;
1109                                 else
1110                                         row.Visible = false;
1111                         }
1112                         cell.ColumnSpan = 2;
1113                         row.Cells.Add (cell);
1114 #if NET_4_0
1115                         row.RenderJustCellContents = !RenderOuterTable;
1116 #endif
1117                 }
1118
1119                 void FillRowDataKey (object dataItem)
1120                 {
1121                         KeyTable.Clear ();
1122
1123                         if (cachedKeyProperties == null) {
1124                                 PropertyDescriptorCollection props = TypeDescriptor.GetProperties (dataItem);
1125                                 cachedKeyProperties = new PropertyDescriptor [DataKeyNames.Length];
1126                                 for (int n=0; n<DataKeyNames.Length; n++) {
1127                                         PropertyDescriptor p = props.Find (DataKeyNames [n], true);
1128                                         if (p == null)
1129                                                 throw new InvalidOperationException ("Property '" + DataKeyNames[n] + "' not found in object of type " + dataItem.GetType());
1130                                         cachedKeyProperties [n] = p;
1131                                 }
1132                         }
1133                         foreach (PropertyDescriptor p in cachedKeyProperties)
1134                                 KeyTable [p.Name] = p.GetValue (dataItem);
1135                 }
1136
1137                 IOrderedDictionary GetRowValues (bool includePrimaryKey)
1138                 {
1139                         OrderedDictionary dic = new OrderedDictionary ();
1140                         ExtractRowValues (dic, includePrimaryKey);
1141                         return dic;
1142                 }
1143
1144                 protected virtual void ExtractRowValues (IOrderedDictionary fieldValues, bool includeKeys)
1145                 {
1146                         FormViewRow row = Row;
1147                         if (row == null)
1148                                 return;
1149
1150                         DataControlRowState rowState = row.RowState;
1151                         IBindableTemplate bt;
1152
1153                         if ((rowState & DataControlRowState.Insert) != 0)
1154                                 bt = insertItemTemplate as IBindableTemplate;
1155                         else if ((rowState & DataControlRowState.Edit) != 0)
1156                                 bt = editItemTemplate as IBindableTemplate;
1157                         else
1158                                 return;
1159
1160                         if (bt != null) {
1161                                 IOrderedDictionary values = bt.ExtractValues (row.Cells [0]);
1162                                 if (values != null) {
1163                                         foreach (DictionaryEntry e in values) {
1164                                                 if (includeKeys || Array.IndexOf (DataKeyNames, e.Key) == -1)
1165                                                         fieldValues [e.Key] = e.Value;
1166                                         }
1167                                 }
1168                         }
1169                 }
1170
1171                 protected override HtmlTextWriterTag TagKey {
1172                         get { return HtmlTextWriterTag.Table; }
1173                 }
1174
1175                 public sealed override void DataBind ()
1176                 {
1177                         cachedKeyProperties = null;
1178                         base.DataBind ();
1179
1180                         if (pageCount > 0) {
1181                                 if (CurrentMode == FormViewMode.Edit)
1182                                         oldEditValues = new DataKey (GetRowValues (true));
1183                                 FillRowDataKey (dataItem);
1184                                 key = new DataKey (KeyTable);
1185                         }
1186                 }
1187
1188                 protected internal override void PerformDataBinding (IEnumerable data)
1189                 {
1190                         base.PerformDataBinding (data);
1191                 }
1192
1193                 protected internal virtual void PrepareControlHierarchy ()
1194                 {
1195                         if (table == null)
1196                                 return;
1197
1198                         table.Caption = Caption;
1199                         table.CaptionAlign = CaptionAlign;
1200
1201                         foreach (FormViewRow row in table.Rows) {
1202                                 switch (row.RowType) {
1203                                         case DataControlRowType.Header:
1204                                                 if (headerStyle != null && !headerStyle.IsEmpty)
1205                                                         row.ControlStyle.CopyFrom (headerStyle);
1206                                                 break;
1207                                         case DataControlRowType.Footer:
1208                                                 if (footerStyle != null && !footerStyle.IsEmpty)
1209                                                         row.ControlStyle.CopyFrom (footerStyle);
1210                                                 break;
1211                                         case DataControlRowType.Pager:
1212                                                 if (pagerStyle != null && !pagerStyle.IsEmpty)
1213                                                         row.ControlStyle.CopyFrom (pagerStyle);
1214                                                 break;
1215                                         case DataControlRowType.EmptyDataRow:
1216                                                 if (emptyDataRowStyle != null && !emptyDataRowStyle.IsEmpty)
1217                                                         row.ControlStyle.CopyFrom (emptyDataRowStyle);
1218                                                 break;
1219                                         case DataControlRowType.DataRow:
1220                                                 if (rowStyle != null && !rowStyle.IsEmpty)
1221                                                         row.ControlStyle.CopyFrom (rowStyle);
1222                                                 if ((row.RowState & (DataControlRowState.Edit | DataControlRowState.Insert)) != 0 && editRowStyle != null && !editRowStyle.IsEmpty)
1223                                                         row.ControlStyle.CopyFrom (editRowStyle);
1224                                                 if ((row.RowState & DataControlRowState.Insert) != 0 && insertRowStyle != null && !insertRowStyle.IsEmpty)
1225                                                         row.ControlStyle.CopyFrom (insertRowStyle);
1226                                                 break;
1227                                         default:
1228                                                 break;
1229                                 }
1230                         }
1231                 }
1232
1233                 protected internal override void OnInit (EventArgs e)
1234                 {
1235                         Page.RegisterRequiresControlState (this);
1236                         base.OnInit (e);
1237                 }
1238
1239                 protected override bool OnBubbleEvent (object source, EventArgs e)
1240                 {
1241                         FormViewCommandEventArgs args = e as FormViewCommandEventArgs;
1242                         if (args != null) {
1243                                 bool causesValidation = false;
1244                                 IButtonControl button = args.CommandSource as IButtonControl;
1245                                 if (button != null && button.CausesValidation) {
1246                                         Page.Validate (button.ValidationGroup);
1247                                         causesValidation = true;
1248                                 }
1249                                 ProcessCommand (args, causesValidation);
1250                                 return true;
1251                         }
1252                         return base.OnBubbleEvent (source, e);
1253                 }
1254
1255                 void ProcessCommand (FormViewCommandEventArgs args, bool causesValidation)
1256                 {
1257                         OnItemCommand (args);
1258                         ProcessEvent (args.CommandName, args.CommandArgument as string, causesValidation);
1259                 }
1260
1261                 void IPostBackEventHandler.RaisePostBackEvent (string eventArgument)
1262                 {
1263                         RaisePostBackEvent (eventArgument);
1264                 }
1265
1266                 protected virtual void RaisePostBackEvent (string eventArgument)
1267                 {
1268                         int i = eventArgument.IndexOf ('$');
1269                         CommandEventArgs arg;
1270                         if (i != -1)
1271                                 arg = new CommandEventArgs (eventArgument.Substring (0, i), eventArgument.Substring (i + 1));
1272                         else
1273                                 arg = new CommandEventArgs (eventArgument, null);
1274                         ProcessCommand (new FormViewCommandEventArgs (this, arg), false);
1275                 }
1276
1277                 void ProcessEvent (string eventName, string param, bool causesValidation)
1278                 {
1279                         switch (eventName) {
1280                                 case DataControlCommands.PageCommandName:
1281                                         int newIndex = -1;
1282                                         switch (param) {
1283                                                 case DataControlCommands.FirstPageCommandArgument:
1284                                                         newIndex = 0;
1285                                                         break;
1286                                                 case DataControlCommands.LastPageCommandArgument:
1287                                                         newIndex = PageCount - 1;
1288                                                         break;
1289                                                 case DataControlCommands.NextPageCommandArgument:
1290                                                         newIndex = PageIndex + 1;
1291                                                         break;
1292                                                 case DataControlCommands.PreviousPageCommandArgument:
1293                                                         newIndex = PageIndex - 1;
1294                                                         break;
1295                                                 default:
1296                                                         int paramIndex = 0;
1297                                                         int.TryParse (param, out paramIndex);
1298                                                         newIndex = paramIndex - 1;
1299                                                         break;
1300                                         }
1301                                         SetPageIndex (newIndex);
1302                                         break;
1303
1304                                 case DataControlCommands.FirstPageCommandArgument:
1305                                         SetPageIndex (0);
1306                                         break;
1307
1308                                 case DataControlCommands.LastPageCommandArgument:
1309                                         SetPageIndex (PageCount - 1);
1310                                         break;
1311
1312                                 case DataControlCommands.NextPageCommandArgument:
1313                                         if (PageIndex < PageCount - 1)
1314                                                 SetPageIndex (PageIndex + 1);
1315                                         break;
1316
1317                                 case DataControlCommands.PreviousPageCommandArgument:
1318                                         if (PageIndex > 0)
1319                                                 SetPageIndex (PageIndex - 1);
1320                                         break;
1321
1322                                 case DataControlCommands.EditCommandName:
1323                                         ProcessChangeMode (FormViewMode.Edit, false);
1324                                         break;
1325
1326                                 case DataControlCommands.NewCommandName:
1327                                         ProcessChangeMode (FormViewMode.Insert, false);
1328                                         break;
1329
1330                                 case DataControlCommands.UpdateCommandName:
1331                                         UpdateItem (param, causesValidation);
1332                                         break;
1333
1334                                 case DataControlCommands.CancelCommandName:
1335                                         CancelEdit ();
1336                                         break;
1337
1338                                 case DataControlCommands.DeleteCommandName:
1339                                         DeleteItem ();
1340                                         break;
1341
1342                                 case DataControlCommands.InsertCommandName:
1343                                         InsertItem (causesValidation);
1344                                         break;
1345                         }
1346                 }
1347 #if NET_4_0
1348                 public
1349 #endif
1350                 void SetPageIndex (int index)
1351                 {
1352                         FormViewPageEventArgs args = new FormViewPageEventArgs (index);
1353                         OnPageIndexChanging (args);
1354
1355                         if (args.Cancel || !IsBoundUsingDataSourceID)
1356                                 return;
1357
1358                         int newIndex = args.NewPageIndex;
1359                         if (newIndex < 0 || newIndex >= PageCount)
1360                                 return;
1361                         EndRowEdit (false, false);
1362                         PageIndex = newIndex;
1363                         OnPageIndexChanged (EventArgs.Empty);
1364                 }
1365
1366                 public void ChangeMode (FormViewMode newMode)
1367                 {
1368                         if (CurrentMode == newMode)
1369                                 return;
1370                         CurrentMode = newMode;
1371                         RequireBinding ();
1372                 }
1373
1374                 void ProcessChangeMode (FormViewMode newMode, bool cancelingEdit)
1375                 {
1376                         FormViewModeEventArgs args = new FormViewModeEventArgs (newMode, cancelingEdit);
1377                         OnModeChanging (args);
1378
1379                         if (args.Cancel || !IsBoundUsingDataSourceID)
1380                                 return;
1381
1382                         ChangeMode (args.NewMode);
1383
1384                         OnModeChanged (EventArgs.Empty);
1385                 }
1386
1387                 void CancelEdit ()
1388                 {
1389                         EndRowEdit (true, true);
1390                 }
1391
1392                 public virtual void UpdateItem (bool causesValidation)
1393                 {
1394                         UpdateItem (null, causesValidation);
1395                 }
1396
1397                 void UpdateItem (string param, bool causesValidation)
1398                 {
1399                         if (causesValidation && Page != null && !Page.IsValid)
1400                                 return;
1401
1402                         if (currentMode != FormViewMode.Edit)
1403                                 throw new HttpException ("Must be in Edit mode");
1404
1405                         currentEditOldValues = OldEditValues.Values;
1406                         currentEditRowKeys = DataKey.Values;
1407                         currentEditNewValues = GetRowValues (true);
1408
1409                         FormViewUpdateEventArgs args = new FormViewUpdateEventArgs (param, currentEditRowKeys, currentEditOldValues, currentEditNewValues);
1410                         OnItemUpdating (args);
1411
1412                         if (args.Cancel || !IsBoundUsingDataSourceID)
1413                                 return;
1414
1415                         DataSourceView view = GetData ();
1416                         if (view == null)
1417                                 throw new HttpException ("The DataSourceView associated to data bound control was null");
1418                         view.Update (currentEditRowKeys, currentEditNewValues, currentEditOldValues, new DataSourceViewOperationCallback (UpdateCallback));
1419                 }
1420
1421                 bool UpdateCallback (int recordsAffected, Exception exception)
1422                 {
1423                         FormViewUpdatedEventArgs dargs = new FormViewUpdatedEventArgs (recordsAffected, exception, currentEditRowKeys, currentEditOldValues, currentEditNewValues);
1424                         OnItemUpdated (dargs);
1425
1426                         if (!dargs.KeepInEditMode)
1427                                 EndRowEdit (true, false);
1428
1429                         return dargs.ExceptionHandled;
1430                 }
1431
1432                 public virtual void InsertItem (bool causesValidation)
1433                 {
1434                         InsertItem (null, causesValidation);
1435                 }
1436
1437                 void InsertItem (string param, bool causesValidation)
1438                 {
1439                         if (causesValidation && Page != null && !Page.IsValid)
1440                                 return;
1441
1442                         if (currentMode != FormViewMode.Insert)
1443                                 throw new HttpException ("Must be in Insert mode");
1444
1445                         currentEditNewValues = GetRowValues (true);
1446                         FormViewInsertEventArgs args = new FormViewInsertEventArgs (param, currentEditNewValues);
1447                         OnItemInserting (args);
1448
1449                         if (args.Cancel || !IsBoundUsingDataSourceID)
1450                                 return;
1451
1452                         DataSourceView view = GetData ();
1453                         if (view == null)
1454                                 throw new HttpException ("The DataSourceView associated to data bound control was null");
1455                         view.Insert (currentEditNewValues, new DataSourceViewOperationCallback (InsertCallback));
1456                 }
1457
1458                 bool InsertCallback (int recordsAffected, Exception exception)
1459                 {
1460                         FormViewInsertedEventArgs dargs = new FormViewInsertedEventArgs (recordsAffected, exception, currentEditNewValues);
1461                         OnItemInserted (dargs);
1462
1463                         if (!dargs.KeepInInsertMode)
1464                                 EndRowEdit (true, false);
1465
1466                         return dargs.ExceptionHandled;
1467                 }
1468
1469                 public virtual void DeleteItem ()
1470                 {
1471                         currentEditRowKeys = DataKey.Values;
1472                         currentEditNewValues = GetRowValues (true);
1473
1474                         FormViewDeleteEventArgs args = new FormViewDeleteEventArgs (PageIndex, currentEditRowKeys, currentEditNewValues);
1475                         OnItemDeleting (args);
1476
1477                         if (args.Cancel || !IsBoundUsingDataSourceID)
1478                                 return;
1479
1480                         if (PageIndex > 0 && PageIndex == PageCount - 1)
1481                                 PageIndex--;
1482
1483                         RequireBinding ();
1484
1485                         DataSourceView view = GetData ();
1486                         if (view != null)
1487                                 view.Delete (currentEditRowKeys, currentEditNewValues, new DataSourceViewOperationCallback (DeleteCallback));
1488                         else {
1489                                 FormViewDeletedEventArgs dargs = new FormViewDeletedEventArgs (0, null, currentEditRowKeys, currentEditNewValues);
1490                                 OnItemDeleted (dargs);
1491                         }
1492                 }
1493
1494                 bool DeleteCallback (int recordsAffected, Exception exception)
1495                 {
1496                         FormViewDeletedEventArgs dargs = new FormViewDeletedEventArgs (recordsAffected, exception, currentEditRowKeys, currentEditNewValues);
1497                         OnItemDeleted (dargs);
1498                         return dargs.ExceptionHandled;
1499                 }
1500
1501                 void EndRowEdit (bool switchToDefaultMode, bool cancelingEdit)
1502                 {
1503                         if (switchToDefaultMode)
1504                                 ProcessChangeMode (DefaultMode, cancelingEdit);
1505                         oldEditValues = new DataKey (new OrderedDictionary ());
1506                         currentEditRowKeys = null;
1507                         currentEditOldValues = null;
1508                         currentEditNewValues = null;
1509                         RequireBinding ();
1510                 }
1511
1512                 protected internal override void LoadControlState (object ob)
1513                 {
1514                         if (ob == null) return;
1515                         object[] state = (object[]) ob;
1516                         base.LoadControlState (state[0]);
1517                         pageIndex = (int) state[1];
1518                         pageCount = (int) state[2];
1519                         CurrentMode = (FormViewMode) state[3];
1520                         defaultMode = (FormViewMode) state[4];
1521                         dataKeyNames = (string[]) state[5];
1522                         if (state [6] != null)
1523                                 ((IStateManager) DataKey).LoadViewState (state [6]);
1524                         if (state [7] != null)
1525                                 ((IStateManager) OldEditValues).LoadViewState (state [7]);
1526                 }
1527
1528                 protected internal override object SaveControlState ()
1529                 {
1530                         object bstate = base.SaveControlState ();
1531                         return new object [] {
1532                                 bstate,
1533                                 pageIndex,
1534                                 pageCount,
1535                                 CurrentMode,
1536                                 defaultMode,
1537                                 dataKeyNames,
1538                                 (key == null ? null : ((IStateManager)key).SaveViewState()),
1539                                 (oldEditValues == null ? null : ((IStateManager) oldEditValues).SaveViewState ())
1540                         };
1541                 }
1542
1543                 protected override void TrackViewState()
1544                 {
1545                         base.TrackViewState();
1546                         if (pagerSettings != null)
1547                                 ((IStateManager)pagerSettings).TrackViewState();
1548                         if (footerStyle != null)
1549                                 ((IStateManager)footerStyle).TrackViewState();
1550                         if (headerStyle != null)
1551                                 ((IStateManager)headerStyle).TrackViewState();
1552                         if (pagerStyle != null)
1553                                 ((IStateManager)pagerStyle).TrackViewState();
1554                         if (rowStyle != null)
1555                                 ((IStateManager)rowStyle).TrackViewState();
1556                         if (editRowStyle != null)
1557                                 ((IStateManager)editRowStyle).TrackViewState();
1558                         if (insertRowStyle != null)
1559                                 ((IStateManager)insertRowStyle).TrackViewState();
1560                         if (emptyDataRowStyle != null)
1561                                 ((IStateManager)emptyDataRowStyle).TrackViewState();
1562                 }
1563
1564                 protected override object SaveViewState()
1565                 {
1566                         object[] states = new object [10];
1567                         states[0] = base.SaveViewState();
1568                         states[1] = (pagerSettings == null ? null : ((IStateManager)pagerSettings).SaveViewState());
1569                         states[2] = (footerStyle == null ? null : ((IStateManager)footerStyle).SaveViewState());
1570                         states[3] = (headerStyle == null ? null : ((IStateManager)headerStyle).SaveViewState());
1571                         states[4] = (pagerStyle == null ? null : ((IStateManager)pagerStyle).SaveViewState());
1572                         states[5] = (rowStyle == null ? null : ((IStateManager)rowStyle).SaveViewState());
1573                         states[6] = (insertRowStyle == null ? null : ((IStateManager)insertRowStyle).SaveViewState());
1574                         states[7] = (editRowStyle == null ? null : ((IStateManager)editRowStyle).SaveViewState());
1575                         states[8] = (emptyDataRowStyle == null ? null : ((IStateManager)emptyDataRowStyle).SaveViewState());
1576
1577                         for (int i = states.Length - 1; i >= 0; i--) {
1578                                 if (states [i] != null)
1579                                         return states;
1580                         }
1581
1582                         return null;
1583                 }
1584
1585                 protected override void LoadViewState (object savedState)
1586                 {
1587                         if (savedState == null) {
1588                                 base.LoadViewState (null);
1589                                 return;
1590                         }
1591
1592                         object [] states = (object []) savedState;
1593
1594                         base.LoadViewState (states[0]);
1595
1596                         if (states[1] != null)
1597                                 ((IStateManager)PagerSettings).LoadViewState (states[1]);
1598                         if (states[2] != null)
1599                                 ((IStateManager)FooterStyle).LoadViewState (states[2]);
1600                         if (states[3] != null)
1601                                 ((IStateManager)HeaderStyle).LoadViewState (states[3]);
1602                         if (states[4] != null)
1603                                 ((IStateManager)PagerStyle).LoadViewState (states[4]);
1604                         if (states[5] != null)
1605                                 ((IStateManager)RowStyle).LoadViewState (states[5]);
1606                         if (states[6] != null)
1607                                 ((IStateManager)InsertRowStyle).LoadViewState (states[6]);
1608                         if (states[7] != null)
1609                                 ((IStateManager)EditRowStyle).LoadViewState (states[7]);
1610                         if (states[8] != null)
1611                                 ((IStateManager)EmptyDataRowStyle).LoadViewState (states[8]);
1612                 }
1613
1614                 protected internal override void Render (HtmlTextWriter writer)
1615                 {
1616 #if NET_4_0
1617                         VerifyInlinePropertiesNotSet ();
1618                         if (RenderOuterTable) {
1619 #endif
1620                                 PrepareControlHierarchy ();
1621                                 if (table != null)
1622                                         table.Render (writer);
1623 #if NET_4_0
1624                         } else if (table != null)
1625                                 table.RenderChildren (writer);
1626 #endif
1627                 }
1628
1629                 PostBackOptions IPostBackContainer.GetPostBackOptions (IButtonControl control)
1630                 {
1631                         if (control == null)
1632                                 throw new ArgumentNullException ("control");
1633
1634                         if (control.CausesValidation)
1635                                 throw new InvalidOperationException ("A button that causes validation in FormView '" + ID + "' is attempting to use the container GridView as the post back target.  The button should either turn off validation or use itself as the post back container.");
1636
1637                         PostBackOptions options = new PostBackOptions (this);
1638                         options.Argument = control.CommandName + "$" + control.CommandArgument;
1639                         options.RequiresJavaScriptProtocol = true;
1640
1641                         return options;
1642                 }
1643
1644         }
1645 }
1646