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 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.FormViewDesigner, " + Consts.AssemblySystem_Design, "System.ComponentModel.Design.IDesigner")]
  45         [ControlValuePropertyAttribute ("SelectedValue")]
  46         [DefaultEventAttribute ("PageIndexChanging")]
  47         [AspNetHostingPermissionAttribute (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  48         [AspNetHostingPermissionAttribute (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  49         public class FormView: CompositeDataBoundControl, IDataItemContainer, INamingContainer, IPostBackEventHandler, IPostBackContainer
  50         {
  51                 object dataItem;
  52
  53                 Table table;
  54                 FormViewRow headerRow;
  55                 FormViewRow footerRow;
  56                 FormViewRow bottomPagerRow;
  57                 FormViewRow topPagerRow;
  58                 FormViewRow itemRow;
  59
  60                 IOrderedDictionary currentEditRowKeys;
  61                 IOrderedDictionary currentEditNewValues;
  62                 IOrderedDictionary currentEditOldValues;
  63
  64                 ITemplate pagerTemplate;
  65                 ITemplate emptyDataTemplate;
  66                 ITemplate headerTemplate;
  67                 ITemplate footerTemplate;
  68                 ITemplate editItemTemplate;
  69                 ITemplate insertItemTemplate;
  70                 ITemplate itemTemplate;
  71
  72                 PropertyDescriptor[] cachedKeyProperties;
  73                 readonly string[] emptyKeys = new string[0];
  74
  75                 // View state
  76                 PagerSettings pagerSettings;
  77
  78                 TableItemStyle editRowStyle;
  79                 TableItemStyle insertRowStyle;
  80                 TableItemStyle emptyDataRowStyle;
  81                 TableItemStyle footerStyle;
  82                 TableItemStyle headerStyle;
  83                 TableItemStyle pagerStyle;
  84                 TableItemStyle rowStyle;
  85
  86                 DataKey key;
  87                 DataKey oldEditValues;
  88
  89                 private static readonly object PageIndexChangedEvent = new object();
  90                 private static readonly object PageIndexChangingEvent = new object();
  91                 private static readonly object ItemCommandEvent = new object();
  92                 private static readonly object ItemCreatedEvent = new object();
  93                 private static readonly object ItemDeletedEvent = new object();
  94                 private static readonly object ItemDeletingEvent = new object();
  95                 private static readonly object ItemInsertedEvent = new object();
  96                 private static readonly object ItemInsertingEvent = new object();
  97                 private static readonly object ModeChangingEvent = new object();
  98                 private static readonly object ModeChangedEvent = new object();
  99                 private static readonly object ItemUpdatedEvent = new object();
 100                 private static readonly object ItemUpdatingEvent = new object();
 101
 102                 // Control state
 103                 int pageIndex;
 104                 FormViewMode currentMode = FormViewMode.ReadOnly;
 105                 int pageCount = -1;
 106
 107                 public FormView ()
 108                 {
 109                 }
 110
 111                 public event EventHandler PageIndexChanged {
 112                         add { Events.AddHandler (PageIndexChangedEvent, value); }
 113                         remove { Events.RemoveHandler (PageIndexChangedEvent, value); }
 114                 }
 115
 116                 public event FormViewPageEventHandler PageIndexChanging {
 117                         add { Events.AddHandler (PageIndexChangingEvent, value); }
 118                         remove { Events.RemoveHandler (PageIndexChangingEvent, value); }
 119                 }
 120
 121                 public event FormViewCommandEventHandler ItemCommand {
 122                         add { Events.AddHandler (ItemCommandEvent, value); }
 123                         remove { Events.RemoveHandler (ItemCommandEvent, value); }
 124                 }
 125
 126                 public event EventHandler ItemCreated {
 127                         add { Events.AddHandler (ItemCreatedEvent, value); }
 128                         remove { Events.RemoveHandler (ItemCreatedEvent, value); }
 129                 }
 130
 131                 public event FormViewDeletedEventHandler ItemDeleted {
 132                         add { Events.AddHandler (ItemDeletedEvent, value); }
 133                         remove { Events.RemoveHandler (ItemDeletedEvent, value); }
 134                 }
 135
 136                 public event FormViewDeleteEventHandler ItemDeleting {
 137                         add { Events.AddHandler (ItemDeletingEvent, value); }
 138                         remove { Events.RemoveHandler (ItemDeletingEvent, value); }
 139                 }
 140
 141                 public event FormViewInsertedEventHandler ItemInserted {
 142                         add { Events.AddHandler (ItemInsertedEvent, value); }
 143                         remove { Events.RemoveHandler (ItemInsertedEvent, value); }
 144                 }
 145
 146                 public event FormViewInsertEventHandler ItemInserting {
 147                         add { Events.AddHandler (ItemInsertingEvent, value); }
 148                         remove { Events.RemoveHandler (ItemInsertingEvent, value); }
 149                 }
 150
 151                 public event FormViewModeEventHandler ModeChanging {
 152                         add { Events.AddHandler (ModeChangingEvent, value); }
 153                         remove { Events.RemoveHandler (ModeChangingEvent, value); }
 154                 }
 155
 156                 public event EventHandler ModeChanged {
 157                         add { Events.AddHandler (ModeChangedEvent, value); }
 158                         remove { Events.RemoveHandler (ModeChangedEvent, value); }
 159                 }
 160
 161                 public event FormViewUpdatedEventHandler ItemUpdated {
 162                         add { Events.AddHandler (ItemUpdatedEvent, value); }
 163                         remove { Events.RemoveHandler (ItemUpdatedEvent, value); }
 164                 }
 165
 166                 public event FormViewUpdateEventHandler ItemUpdating {
 167                         add { Events.AddHandler (ItemUpdatingEvent, value); }
 168                         remove { Events.RemoveHandler (ItemUpdatingEvent, value); }
 169                 }
 170
 171                 protected virtual void OnPageIndexChanged (EventArgs e)
 172                 {
 173                         if (Events != null) {
 174                                 EventHandler eh = (EventHandler) Events [PageIndexChangedEvent];
 175                                 if (eh != null) eh (this, e);
 176                         }
 177                 }
 178
 179                 protected virtual void OnPageIndexChanging (FormViewPageEventArgs e)
 180                 {
 181                         if (Events != null) {
 182                                 FormViewPageEventHandler eh = (FormViewPageEventHandler) Events [PageIndexChangingEvent];
 183                                 if (eh != null) eh (this, e);
 184                         }
 185                 }
 186
 187                 protected virtual void OnItemCommand (FormViewCommandEventArgs e)
 188                 {
 189                         if (Events != null) {
 190                                 FormViewCommandEventHandler eh = (FormViewCommandEventHandler) Events [ItemCommandEvent];
 191                                 if (eh != null) eh (this, e);
 192                         }
 193                 }
 194
 195                 protected virtual void OnItemCreated (EventArgs e)
 196                 {
 197                         if (Events != null) {
 198                                 EventHandler eh = (EventHandler) Events [ItemCreatedEvent];
 199                                 if (eh != null) eh (this, e);
 200                         }
 201                 }
 202
 203                 protected virtual void OnItemDeleted (FormViewDeletedEventArgs e)
 204                 {
 205                         if (Events != null) {
 206                                 FormViewDeletedEventHandler eh = (FormViewDeletedEventHandler) Events [ItemDeletedEvent];
 207                                 if (eh != null) eh (this, e);
 208                         }
 209                 }
 210
 211                 protected virtual void OnItemInserted (FormViewInsertedEventArgs e)
 212                 {
 213                         if (Events != null) {
 214                                 FormViewInsertedEventHandler eh = (FormViewInsertedEventHandler) Events [ItemInsertedEvent];
 215                                 if (eh != null) eh (this, e);
 216                         }
 217                 }
 218
 219                 protected virtual void OnItemInserting (FormViewInsertEventArgs e)
 220                 {
 221                         if (Events != null) {
 222                                 FormViewInsertEventHandler eh = (FormViewInsertEventHandler) Events [ItemInsertingEvent];
 223                                 if (eh != null) eh (this, e);
 224                         }
 225                 }
 226
 227                 protected virtual void OnItemDeleting (FormViewDeleteEventArgs e)
 228                 {
 229                         if (Events != null) {
 230                                 FormViewDeleteEventHandler eh = (FormViewDeleteEventHandler) Events [ItemDeletingEvent];
 231                                 if (eh != null) eh (this, e);
 232                         }
 233                 }
 234
 235                 protected virtual void OnModeChanged (EventArgs e)
 236                 {
 237                         if (Events != null) {
 238                                 EventHandler eh = (EventHandler) Events [ModeChangedEvent];
 239                                 if (eh != null) eh (this, e);
 240                         }
 241                 }
 242
 243                 protected virtual void OnModeChanging (FormViewModeEventArgs e)
 244                 {
 245                         if (Events != null) {
 246                                 FormViewModeEventHandler eh = (FormViewModeEventHandler) Events [ModeChangingEvent];
 247                                 if (eh != null) eh (this, e);
 248                         }
 249                 }
 250
 251                 protected virtual void OnItemUpdated (FormViewUpdatedEventArgs e)
 252                 {
 253                         if (Events != null) {
 254                                 FormViewUpdatedEventHandler eh = (FormViewUpdatedEventHandler) Events [ItemUpdatedEvent];
 255                                 if (eh != null) eh (this, e);
 256                         }
 257                 }
 258
 259                 protected virtual void OnItemUpdating (FormViewUpdateEventArgs e)
 260                 {
 261                         if (Events != null) {
 262                                 FormViewUpdateEventHandler eh = (FormViewUpdateEventHandler) Events [ItemUpdatingEvent];
 263                                 if (eh != null) eh (this, e);
 264                         }
 265                 }
 266
 267
 268                 [WebCategoryAttribute ("Paging")]
 269                 [DefaultValueAttribute (false)]
 270                 public virtual bool AllowPaging {
 271                         get {
 272                                 object ob = ViewState ["AllowPaging"];
 273                                 if (ob != null) return (bool) ob;
 274                                 return false;
 275                         }
 276                         set {
 277                                 ViewState ["AllowPaging"] = value;
 278                                 RequireBinding ();
 279                         }
 280                 }
 281
 282                 [UrlPropertyAttribute]
 283                 [WebCategoryAttribute ("Appearance")]
 284                 [DefaultValueAttribute ("")]
 285                 [EditorAttribute ("System.Web.UI.Design.ImageUrlEditor, " + Consts.AssemblySystem_Design, "System.Drawing.Design.UITypeEditor, " + Consts.AssemblySystem_Drawing)]
 286                 public virtual string BackImageUrl {
 287                         get {
 288                                 object ob = ViewState ["BackImageUrl"];
 289                                 if (ob != null) return (string) ob;
 290                                 return string.Empty;
 291                         }
 292                         set {
 293                                 ViewState ["BackImageUrl"] = value;
 294                                 RequireBinding ();
 295                         }
 296                 }
 297
 298                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 299                 [BrowsableAttribute (false)]
 300                 public virtual FormViewRow BottomPagerRow {
 301                         get {
 302                                 EnsureDataBound ();
 303                                 return bottomPagerRow;
 304                         }
 305                 }
 306
 307                 [WebCategoryAttribute ("Accessibility")]
 308                 [DefaultValueAttribute ("")]
 309                 [LocalizableAttribute (true)]
 310                 public virtual string Caption {
 311                         get {
 312                                 object ob = ViewState ["Caption"];
 313                                 if (ob != null) return (string) ob;
 314                                 return string.Empty;
 315                         }
 316                         set {
 317                                 ViewState ["Caption"] = value;
 318                                 RequireBinding ();
 319                         }
 320                 }
 321
 322                 [WebCategoryAttribute ("Accessibility")]
 323                 [DefaultValueAttribute (TableCaptionAlign.NotSet)]
 324                 public virtual TableCaptionAlign CaptionAlign
 325                 {
 326                         get {
 327                                 object o = ViewState ["CaptionAlign"];
 328                                 if(o != null) return (TableCaptionAlign) o;
 329                                 return TableCaptionAlign.NotSet;
 330                         }
 331                         set {
 332                                 ViewState ["CaptionAlign"] = value;
 333                                 RequireBinding ();
 334                         }
 335                 }
 336
 337                 [WebCategoryAttribute ("Layout")]
 338                 [DefaultValueAttribute (-1)]
 339                 public virtual int CellPadding
 340                 {
 341                         get {
 342                                 object o = ViewState ["CellPadding"];
 343                                 if (o != null) return (int) o;
 344                                 return -1;
 345                         }
 346                         set {
 347                                 ViewState ["CellPadding"] = value;
 348                                 RequireBinding ();
 349                         }
 350                 }
 351
 352                 [WebCategoryAttribute ("Layout")]
 353                 [DefaultValueAttribute (0)]
 354                 public virtual int CellSpacing
 355                 {
 356                         get {
 357                                 object o = ViewState ["CellSpacing"];
 358                                 if (o != null) return (int) o;
 359                                 return 0;
 360                         }
 361                         set {
 362                                 ViewState ["CellSpacing"] = value;
 363                                 RequireBinding ();
 364                         }
 365                 }
 366
 367                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 368                 [BrowsableAttribute (false)]
 369                 public FormViewMode CurrentMode {
 370                         get {
 371                                 return currentMode;
 372                         }
 373                 }
 374
 375                 [DefaultValueAttribute (FormViewMode.ReadOnly)]
 376                 [WebCategoryAttribute ("Behavior")]
 377                 public virtual FormViewMode DefaultMode {
 378                         get {
 379                                 object o = ViewState ["DefaultMode"];
 380                                 if (o != null) return (FormViewMode) o;
 381                                 return FormViewMode.ReadOnly;
 382                         }
 383                         set {
 384                                 ViewState ["DefaultMode"] = value;
 385                                 RequireBinding ();
 386                         }
 387                 }
 388
 389                 [DefaultValueAttribute (null)]
 390                 [WebCategoryAttribute ("Data")]
 391                 [TypeConverter (typeof(StringArrayConverter))]
 392                 [EditorAttribute ("System.Web.UI.Design.WebControls.DataFieldEditor, " + Consts.AssemblySystem_Design, "System.Drawing.Design.UITypeEditor, " + Consts.AssemblySystem_Drawing)]
 393                 public virtual string[] DataKeyNames
 394                 {
 395                         get {
 396                                 object o = ViewState ["DataKeyNames"];
 397                                 if (o != null) return (string[]) o;
 398                                 return emptyKeys;
 399                         }
 400                         set {
 401                                 ViewState ["DataKeyNames"] = value;
 402                                 RequireBinding ();
 403                         }
 404                 }
 405
 406                 [BrowsableAttribute (false)]
 407                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 408                 public virtual DataKey DataKey {
 409                         get {
 410                                 EnsureDataBound ();
 411                                 return key;
 412                         }
 413                 }
 414
 415                 [DefaultValue (null)]
 416                 [TemplateContainer (typeof(FormView), BindingDirection.TwoWay)]
 417                 [PersistenceMode (PersistenceMode.InnerProperty)]
 418                 [Browsable (false)]
 419                 public virtual ITemplate EditItemTemplate {
 420                         get { return editItemTemplate; }
 421                         set { editItemTemplate = value; RequireBinding (); }
 422                 }
 423
 424                 [WebCategoryAttribute ("Styles")]
 425                 [PersistenceMode (PersistenceMode.InnerProperty)]
 426                 [NotifyParentProperty (true)]
 427                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
 428                 [DefaultValueAttribute (null)]
 429                 public TableItemStyle EditRowStyle {
 430                         get {
 431                                 if (editRowStyle == null) {
 432                                         editRowStyle = new TableItemStyle ();
 433                                         if (IsTrackingViewState)
 434                                                 editRowStyle.TrackViewState();
 435                                 }
 436                                 return editRowStyle;
 437                         }
 438                 }
 439
 440                 [WebCategoryAttribute ("Styles")]
 441                 [PersistenceMode (PersistenceMode.InnerProperty)]
 442                 [NotifyParentProperty (true)]
 443                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
 444                 [DefaultValueAttribute (null)]
 445                 public TableItemStyle EmptyDataRowStyle {
 446                         get {
 447                                 if (emptyDataRowStyle == null) {
 448                                         emptyDataRowStyle = new TableItemStyle ();
 449                                         if (IsTrackingViewState)
 450                                                 emptyDataRowStyle.TrackViewState();
 451                                 }
 452                                 return emptyDataRowStyle;
 453                         }
 454                 }
 455
 456                 [DefaultValue (null)]
 457                 [TemplateContainer (typeof(FormView), BindingDirection.OneWay)]
 458                 [PersistenceMode (PersistenceMode.InnerProperty)]
 459                 [Browsable (false)]
 460                 public virtual ITemplate EmptyDataTemplate {
 461                         get { return emptyDataTemplate; }
 462                         set { emptyDataTemplate = value; RequireBinding (); }
 463                 }
 464
 465                 [LocalizableAttribute (true)]
 466                 [WebCategoryAttribute ("Appearance")]
 467                 [DefaultValueAttribute ("")]
 468                 public virtual string EmptyDataText {
 469                         get {
 470                                 object ob = ViewState ["EmptyDataText"];
 471                                 if (ob != null) return (string) ob;
 472                                 return string.Empty;
 473                         }
 474                         set {
 475                                 ViewState ["EmptyDataText"] = value;
 476                                 RequireBinding ();
 477                         }
 478                 }
 479
 480                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 481                 [BrowsableAttribute (false)]
 482                 public virtual FormViewRow FooterRow {
 483                         get {
 484                                 EnsureChildControls ();
 485                                 return footerRow;
 486                         }
 487                 }
 488
 489                 [DefaultValue (null)]
 490                 [TemplateContainer (typeof(FormView), BindingDirection.OneWay)]
 491                 [PersistenceMode (PersistenceMode.InnerProperty)]
 492                 [Browsable (false)]
 493                 public virtual ITemplate FooterTemplate {
 494                         get { return footerTemplate; }
 495                         set { footerTemplate = value; RequireBinding (); }
 496                 }
 497
 498                 [LocalizableAttribute (true)]
 499                 [WebCategoryAttribute ("Appearance")]
 500                 [DefaultValueAttribute ("")]
 501                 public virtual string FooterText {
 502                         get {
 503                                 object ob = ViewState ["FooterText"];
 504                                 if (ob != null) return (string) ob;
 505                                 return string.Empty;
 506                         }
 507                         set {
 508                                 ViewState ["FooterText"] = value;
 509                                 RequireBinding ();
 510                         }
 511                 }
 512
 513                 [WebCategoryAttribute ("Styles")]
 514                 [PersistenceMode (PersistenceMode.InnerProperty)]
 515                 [NotifyParentProperty (true)]
 516                 [DefaultValue (null)]
 517                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
 518                 public TableItemStyle FooterStyle {
 519                         get {
 520                                 if (footerStyle == null) {
 521                                         footerStyle = new TableItemStyle ();
 522                                         if (IsTrackingViewState)
 523                                                 footerStyle.TrackViewState();
 524                                 }
 525                                 return footerStyle;
 526                         }
 527                 }
 528
 529                 [WebCategoryAttribute ("Appearance")]
 530                 [DefaultValueAttribute (GridLines.None)]
 531                 public virtual GridLines GridLines {
 532                         get {
 533                                 object ob = ViewState ["GridLines"];
 534                                 if (ob != null) return (GridLines) ob;
 535                                 return GridLines.None;
 536                         }
 537                         set {
 538                                 ViewState ["GridLines"] = value;
 539                         }
 540                 }
 541
 542                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 543                 [BrowsableAttribute (false)]
 544                 public virtual FormViewRow HeaderRow {
 545                         get {
 546                                 EnsureChildControls ();
 547                                 return headerRow;
 548                         }
 549                 }
 550
 551                 [WebCategoryAttribute ("Styles")]
 552                 [PersistenceMode (PersistenceMode.InnerProperty)]
 553                 [NotifyParentProperty (true)]
 554                 [DefaultValue (null)]
 555                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
 556                 public TableItemStyle HeaderStyle {
 557                         get {
 558                                 if (headerStyle == null) {
 559                                         headerStyle = new TableItemStyle ();
 560                                         if (IsTrackingViewState)
 561                                                 headerStyle.TrackViewState();
 562                                 }
 563                                 return headerStyle;
 564                         }
 565                 }
 566
 567                 [DefaultValue (null)]
 568                 [TemplateContainer (typeof(FormView), BindingDirection.OneWay)]
 569                 [PersistenceMode (PersistenceMode.InnerProperty)]
 570                 [Browsable (false)]
 571                 public virtual ITemplate HeaderTemplate {
 572                         get { return headerTemplate; }
 573                         set { headerTemplate = value; RequireBinding (); }
 574                 }
 575
 576                 [LocalizableAttribute (true)]
 577                 [WebCategoryAttribute ("Appearance")]
 578                 [DefaultValueAttribute ("")]
 579                 public virtual string HeaderText {
 580                         get {
 581                                 object ob = ViewState ["HeaderText"];
 582                                 if (ob != null) return (string) ob;
 583                                 return string.Empty;
 584                         }
 585                         set {
 586                                 ViewState ["HeaderText"] = value;
 587                                 RequireBinding ();
 588                         }
 589                 }
 590
 591                 [Category ("Layout")]
 592                 [DefaultValueAttribute (HorizontalAlign.NotSet)]
 593                 public virtual HorizontalAlign HorizontalAlign {
 594                         get {
 595                                 object ob = ViewState ["HorizontalAlign"];
 596                                 if (ob != null) return (HorizontalAlign) ob;
 597                                 return HorizontalAlign.NotSet;
 598                         }
 599                         set {
 600                                 ViewState ["HorizontalAlign"] = value;
 601                                 RequireBinding ();
 602                         }
 603                 }
 604
 605                 [DefaultValue (null)]
 606                 [TemplateContainer (typeof(FormView), BindingDirection.TwoWay)]
 607                 [PersistenceMode (PersistenceMode.InnerProperty)]
 608                 [Browsable (false)]
 609                 public virtual ITemplate InsertItemTemplate {
 610                         get { return insertItemTemplate; }
 611                         set { insertItemTemplate = value; RequireBinding (); }
 612                 }
 613
 614                 [WebCategoryAttribute ("Styles")]
 615                 [PersistenceMode (PersistenceMode.InnerProperty)]
 616                 [NotifyParentProperty (true)]
 617                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
 618                 [DefaultValueAttribute (null)]
 619                 public TableItemStyle InsertRowStyle {
 620                         get {
 621                                 if (insertRowStyle == null) {
 622                                         insertRowStyle = new TableItemStyle ();
 623                                         if (IsTrackingViewState)
 624                                                 insertRowStyle.TrackViewState();
 625                                 }
 626                                 return insertRowStyle;
 627                         }
 628                 }
 629
 630                 [DefaultValue (null)]
 631                 [TemplateContainer (typeof(FormView), BindingDirection.TwoWay)]
 632                 [PersistenceMode (PersistenceMode.InnerProperty)]
 633                 [Browsable (false)]
 634                 public virtual ITemplate ItemTemplate {
 635                         get { return itemTemplate; }
 636                         set { itemTemplate = value; RequireBinding (); }
 637                 }
 638
 639                 [BrowsableAttribute (false)]
 640                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 641                 public virtual int PageCount {
 642                         get {
 643                                 if (pageCount != -1) return pageCount;
 644                                 EnsureDataBound ();
 645                                 return pageCount;
 646                         }
 647                 }
 648
 649                 [WebCategoryAttribute ("Paging")]
 650                 [BindableAttribute (true, BindingDirection.OneWay)]
 651                 [DefaultValueAttribute (0)]
 652                 public virtual int PageIndex {
 653                         get {
 654                                 return pageIndex;
 655                         }
 656                         set {
 657                                 if (pageIndex == value)
 658                                         return;
 659                                 pageIndex = value;
 660                                 RequireBinding ();
 661                         }
 662                 }
 663
 664                 [WebCategoryAttribute ("Paging")]
 665                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Content)]
 666                 [NotifyParentPropertyAttribute (true)]
 667                 [PersistenceModeAttribute (PersistenceMode.InnerProperty)]
 668                 public virtual PagerSettings PagerSettings {
 669                         get {
 670                                 if (pagerSettings == null) {
 671                                         pagerSettings = new PagerSettings (this);
 672                                         if (IsTrackingViewState)
 673                                                 ((IStateManager)pagerSettings).TrackViewState ();
 674                                 }
 675                                 return pagerSettings;
 676                         }
 677                 }
 678
 679                 [WebCategoryAttribute ("Styles")]
 680                 [PersistenceMode (PersistenceMode.InnerProperty)]
 681                 [NotifyParentProperty (true)]
 682                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
 683                 public TableItemStyle PagerStyle {
 684                         get {
 685                                 if (pagerStyle == null) {
 686                                         pagerStyle = new TableItemStyle ();
 687                                         if (IsTrackingViewState)
 688                                                 pagerStyle.TrackViewState();
 689                                 }
 690                                 return pagerStyle;
 691                         }
 692                 }
 693
 694
 695                 [DefaultValue (null)]
 696                 /* DataControlPagerCell isnt specified in the docs */
 697                 //[TemplateContainer (typeof(DataControlPagerCell), BindingDirection.OneWay)]
 698                 [PersistenceMode (PersistenceMode.InnerProperty)]
 699                 [Browsable (false)]
 700                 public virtual ITemplate PagerTemplate {
 701                         get { return pagerTemplate; }
 702                         set { pagerTemplate = value; RequireBinding (); }
 703                 }
 704
 705                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 706                 [BrowsableAttribute (false)]
 707                 public virtual FormViewRow Row {
 708                         get {
 709                                 EnsureDataBound ();
 710                                 return itemRow;
 711                         }
 712                 }
 713
 714                 [WebCategoryAttribute ("Styles")]
 715                 [PersistenceMode (PersistenceMode.InnerProperty)]
 716                 [NotifyParentProperty (true)]
 717                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
 718                 [DefaultValue (null)]
 719                 public TableItemStyle RowStyle {
 720                         get {
 721                                 if (rowStyle == null) {
 722                                         rowStyle = new TableItemStyle ();
 723                                         if (IsTrackingViewState)
 724                                                 rowStyle.TrackViewState();
 725                                 }
 726                                 return rowStyle;
 727                         }
 728                 }
 729
 730                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 731                 [BrowsableAttribute (false)]
 732                 public object SelectedValue {
 733                         get { return DataKey.Value; }
 734                 }
 735
 736                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 737                 [BrowsableAttribute (false)]
 738                 public virtual FormViewRow TopPagerRow {
 739                         get {
 740                                 EnsureDataBound ();
 741                                 return topPagerRow;
 742                         }
 743                 }
 744
 745                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 746                 [BrowsableAttribute (false)]
 747                 public virtual object DataItem {
 748                         get {
 749                                 EnsureDataBound ();
 750                                 return dataItem;
 751                         }
 752                 }
 753
 754                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 755                 [BrowsableAttribute (false)]
 756                 public int DataItemCount {
 757                         get { return PageCount; }
 758                 }
 759
 760                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 761                 [BrowsableAttribute (false)]
 762                 public virtual int DataItemIndex {
 763                         get { return PageIndex; }
 764                 }
 765
 766                 int IDataItemContainer.DisplayIndex {
 767                         get { return PageIndex; }
 768                 }
 769
 770                 public virtual bool IsBindableType (Type type)
 771                 {
 772                         return type.IsPrimitive || type == typeof(string) || type == typeof(DateTime) || type == typeof(Guid);
 773                 }
 774
 775                 protected override DataSourceSelectArguments CreateDataSourceSelectArguments ()
 776                 {
 777                         return base.CreateDataSourceSelectArguments ();
 778                 }
 779
 780                 protected virtual FormViewRow CreateRow (int rowIndex, DataControlRowType rowType, DataControlRowState rowState)
 781                 {
 782                         FormViewRow row = new FormViewRow (rowIndex, rowType, rowState);
 783                         OnItemCreated (EventArgs.Empty);
 784                         return row;
 785                 }
 786
 787                 void RequireBinding ()
 788                 {
 789                         if (Initialized) {
 790                                 pageCount = -1;
 791                                 RequiresDataBinding = true;
 792                         }
 793                 }
 794
 795                 protected virtual Table CreateTable ()
 796                 {
 797                         Table table = new Table ();
 798                         table.Caption = Caption;
 799                         table.CaptionAlign = CaptionAlign;
 800                         table.CellPadding = CellPadding;
 801                         table.CellSpacing = CellSpacing;
 802                         table.HorizontalAlign = HorizontalAlign;
 803                         table.BackImageUrl = BackImageUrl;
 804                         return table;
 805                 }
 806
 807                 [MonoTODO]
 808                 protected override void EnsureDataBound ()
 809                 {
 810                         base.EnsureDataBound ();
 811                 }
 812
 813                 [MonoTODO]
 814                 protected override Style CreateControlStyle ()
 815                 {
 816                         return base.CreateControlStyle ();
 817                 }
 818
 819                 protected override int CreateChildControls (IEnumerable data, bool dataBinding)
 820                 {
 821                         PagedDataSource dataSource = new PagedDataSource ();
 822                         dataSource.DataSource = data;
 823                         dataSource.AllowPaging = AllowPaging;
 824                         dataSource.PageSize = 1;
 825                         dataSource.CurrentPageIndex = PageIndex;
 826
 827                         if (dataBinding) {
 828                                 DataSourceView view = GetData ();
 829                                 if (view.CanPage) {
 830                                         dataSource.AllowServerPaging = true;
 831                                         if (view.CanRetrieveTotalRowCount)
 832                                                 dataSource.VirtualCount = SelectArguments.TotalRowCount;
 833                                         else {
 834                                                 dataSource.DataSourceView = view;
 835                                                 dataSource.DataSourceSelectArguments = SelectArguments;
 836                                                 dataSource.SetItemCountFromPageIndex (PageIndex + PagerSettings.PageButtonCount);
 837                                         }
 838                                 }
 839                         }
 840
 841                         pageCount = dataSource.DataSourceCount;
 842                         bool showPager = AllowPaging && (dataSource.Count > 1);
 843
 844                         Controls.Clear ();
 845                         table = CreateTable ();
 846                         Controls.Add (table);
 847
 848                         if (!Page.IsPostBack)
 849                                 currentMode = DefaultMode;
 850
 851                         // Gets the current data item
 852
 853                         IEnumerator e = dataSource.GetEnumerator ();
 854                         dataItem = null;
 855
 856                         if (AllowPaging) {
 857                                 if (e.MoveNext ())
 858                                         dataItem = e.Current;
 859                         }
 860                         else
 861                         for (int page = 0; e.MoveNext (); page++ )
 862                                 if (page == PageIndex)
 863                                         dataItem = e.Current;
 864
 865                         // Main table creation
 866
 867                         if (HeaderText.Length != 0 || headerTemplate != null) {
 868                                 headerRow = CreateRow (-1, DataControlRowType.Header, DataControlRowState.Normal);
 869                                 InitializeRow (headerRow);
 870                                 table.Rows.Add (headerRow);
 871                         }
 872
 873                         if (showPager && PagerSettings.Position == PagerPosition.Top || PagerSettings.Position == PagerPosition.TopAndBottom) {
 874                                 topPagerRow = CreateRow (-1, DataControlRowType.Pager, DataControlRowState.Normal);
 875                                 InitializePager (topPagerRow, dataSource);
 876                                 table.Rows.Add (topPagerRow);
 877                         }
 878
 879                         if (pageCount > 0) {
 880                                 DataControlRowState rstate = GetRowState ();
 881                                 itemRow = CreateRow (0, DataControlRowType.DataRow, rstate);
 882                                 InitializeRow (itemRow);
 883                                 table.Rows.Add (itemRow);
 884
 885                                 if (!dataBinding) {
 886                                         if (CurrentMode == FormViewMode.Edit)
 887                                                 oldEditValues = new DataKey (new OrderedDictionary ());
 888                                         key = new DataKey (new OrderedDictionary (), DataKeyNames);
 889                                 }
 890                         } else {
 891                                 switch (CurrentMode) {
 892                                 case FormViewMode.Edit:
 893                                         itemRow = CreateRow (-1, DataControlRowType.DataRow, DataControlRowState.Edit);
 894                                         break;
 895                                 case FormViewMode.Insert:
 896                                         itemRow = CreateRow (-1, DataControlRowType.DataRow, DataControlRowState.Insert);
 897                                         break;
 898                                 default:
 899                                         itemRow = CreateRow (-1, DataControlRowType.EmptyDataRow, DataControlRowState.Normal);
 900                                         break;
 901                                 }
 902                                 table.Rows.Add (itemRow);
 903                                 InitializeRow (itemRow);
 904                         }
 905
 906                         if (showPager && PagerSettings.Position == PagerPosition.Bottom || PagerSettings.Position == PagerPosition.TopAndBottom) {
 907                                 bottomPagerRow = CreateRow (-1, DataControlRowType.Pager, DataControlRowState.Normal);
 908                                 InitializePager (bottomPagerRow, dataSource);
 909                                 table.Rows.Add (bottomPagerRow);
 910                         }
 911
 912                         if (FooterText.Length != 0 || footerTemplate != null) {
 913                                 footerRow = CreateRow (-1, DataControlRowType.Footer, DataControlRowState.Normal);
 914                                 InitializeRow (footerRow);
 915                                 table.Rows.Add (footerRow);
 916                         }
 917
 918                         if (dataBinding)
 919                                 DataBind (false);
 920
 921                         return dataSource.DataSourceCount;
 922                 }
 923
 924                 DataControlRowState GetRowState ()
 925                 {
 926                         DataControlRowState rstate = DataControlRowState.Normal;
 927                         if (CurrentMode == FormViewMode.Edit) rstate |= DataControlRowState.Edit;
 928                         else if (CurrentMode == FormViewMode.Insert) rstate |= DataControlRowState.Insert;
 929                         return rstate;
 930                 }
 931
 932                 protected virtual void InitializePager (FormViewRow row, PagedDataSource dataSource)
 933                 {
 934                         TableCell cell = new TableCell ();
 935
 936                         if (pagerTemplate != null)
 937                                 pagerTemplate.InstantiateIn (cell);
 938                         else
 939                                 cell.Controls.Add (PagerSettings.CreatePagerControl (dataSource.CurrentPageIndex, dataSource.PageCount));
 940
 941                         row.Cells.Add (cell);
 942                 }
 943
 944                 protected virtual void InitializeRow (FormViewRow row)
 945                 {
 946                         TableCell cell = new TableCell ();
 947
 948                         if (row.RowType == DataControlRowType.DataRow)
 949                         {
 950                                 if ((row.RowState & DataControlRowState.Edit) != 0) {
 951                                         if (editItemTemplate != null)
 952                                                 editItemTemplate.InstantiateIn (cell);
 953                                 } else if ((row.RowState & DataControlRowState.Insert) != 0) {
 954                                         if (insertItemTemplate != null)
 955                                                 insertItemTemplate.InstantiateIn (cell);
 956                                 } else if (itemTemplate != null)
 957                                         itemTemplate.InstantiateIn (cell);
 958                         }
 959                         else if (row.RowType == DataControlRowType.EmptyDataRow)
 960                         {
 961                                 if (emptyDataTemplate != null)
 962                                         emptyDataTemplate.InstantiateIn (cell);
 963                                 else
 964                                         cell.Text = EmptyDataText;
 965                         }
 966                         else if (row.RowType == DataControlRowType.Footer)
 967                         {
 968                                 if (footerTemplate != null)
 969                                         footerTemplate.InstantiateIn (cell);
 970                                 else
 971                                         cell.Text = FooterText;
 972                         }
 973                         else if (row.RowType == DataControlRowType.Header)
 974                         {
 975                                 if (headerTemplate != null)
 976                                         headerTemplate.InstantiateIn (cell);
 977                                 else
 978                                         cell.Text = HeaderText;
 979                         }
 980                         row.Cells.Add (cell);
 981                 }
 982
 983                 IOrderedDictionary CreateRowDataKey (object dataItem)
 984                 {
 985                         if (cachedKeyProperties == null) {
 986                                 PropertyDescriptorCollection props = TypeDescriptor.GetProperties (dataItem);
 987                                 cachedKeyProperties = new PropertyDescriptor [DataKeyNames.Length];
 988                                 for (int n=0; n<DataKeyNames.Length; n++) {
 989                                         PropertyDescriptor p = props [DataKeyNames[n]];
 990                                         if (p == null)
 991                                                 new InvalidOperationException ("Property '" + DataKeyNames[n] + "' not found in object of type " + dataItem.GetType());
 992                                         cachedKeyProperties [n] = p;
 993                                 }
 994                         }
 995
 996                         OrderedDictionary dic = new OrderedDictionary ();
 997                         foreach (PropertyDescriptor p in cachedKeyProperties)
 998                                 dic [p.Name] = p.GetValue (dataItem);
 999                         return dic;
1000                 }
1001
1002                 IOrderedDictionary GetRowValues (bool includePrimaryKey)
1003                 {
1004                         OrderedDictionary dic = new OrderedDictionary ();
1005                         ExtractRowValues (dic, includePrimaryKey);
1006                         return dic;
1007                 }
1008
1009                 protected virtual void ExtractRowValues (IOrderedDictionary fieldValues, bool includeKeys)
1010                 {
1011                         DataControlRowState rowState = Row.RowState;
1012                         IBindableTemplate bt;
1013
1014                         if ((rowState & DataControlRowState.Insert) != 0)
1015                                 bt = insertItemTemplate as IBindableTemplate;
1016                         else if ((rowState & DataControlRowState.Edit) != 0)
1017                                 bt = editItemTemplate as IBindableTemplate;
1018                         else
1019                                 return;
1020
1021                         if (bt != null) {
1022                                 IOrderedDictionary values = bt.ExtractValues (Row.Cells [0]);
1023                                 foreach (DictionaryEntry e in values) {
1024                                         if (includeKeys || Array.IndexOf (DataKeyNames, e.Key) == -1)
1025                                                 fieldValues [e.Key] = e.Value;
1026                                 }
1027                         }
1028                 }
1029
1030                 protected override HtmlTextWriterTag TagKey {
1031                         get {
1032                                 return HtmlTextWriterTag.Table;
1033                         }
1034                 }
1035
1036                 public sealed override void DataBind ()
1037                 {
1038                         DataSourceView view = GetData ();
1039                         if (AllowPaging && view.CanPage) {
1040                                 SelectArguments.StartRowIndex = PageIndex;
1041                                 SelectArguments.MaximumRows = 1;
1042                                 if (view.CanRetrieveTotalRowCount)
1043                                         SelectArguments.RetrieveTotalRowCount = true;
1044                         }
1045
1046                         cachedKeyProperties = null;
1047                         base.DataBind ();
1048
1049                         if (pageCount > 0) {
1050                                 if (CurrentMode == FormViewMode.Edit)
1051                                         oldEditValues = new DataKey (GetRowValues (true));
1052                                 key = new DataKey (CreateRowDataKey (dataItem), DataKeyNames);
1053                         }
1054                 }
1055
1056                 protected internal override void PerformDataBinding (IEnumerable data)
1057                 {
1058                         base.PerformDataBinding (data);
1059                 }
1060
1061                 [MonoTODO]
1062                 protected internal virtual void PrepareControlHierarchy ()
1063                 {
1064                         throw new NotImplementedException ();
1065                 }
1066
1067                 protected internal override void OnInit (EventArgs e)
1068                 {
1069                         Page.RegisterRequiresControlState (this);
1070                         base.OnInit (e);
1071                 }
1072
1073                 protected override bool OnBubbleEvent (object source, EventArgs e)
1074                 {
1075                         FormViewCommandEventArgs args = e as FormViewCommandEventArgs;
1076                         if (args != null) {
1077                                 OnItemCommand (args);
1078                                 ProcessEvent (args.CommandName, args.CommandArgument as string);
1079                         }
1080                         return base.OnBubbleEvent (source, e);
1081                 }
1082
1083                 void IPostBackEventHandler.RaisePostBackEvent(string eventArgument)
1084                 {
1085                         RaisePostBackEvent (eventArgument);
1086                 }
1087
1088                 protected virtual void RaisePostBackEvent (string eventArgument)
1089                 {
1090                         int i = eventArgument.IndexOf ('$');
1091                         if (i != -1)
1092                                 ProcessEvent (eventArgument.Substring (0, i), eventArgument.Substring (i + 1));
1093                         else
1094                                 ProcessEvent (eventArgument, null);
1095                 }
1096
1097                 void ProcessEvent (string eventName, string param)
1098                 {
1099                         switch (eventName)
1100                         {
1101                         case DataControlCommands.PageCommandName:
1102                                 int newIndex = -1;
1103                                 switch (param) {
1104                                 case DataControlCommands.FirstPageCommandArgument:
1105                                         newIndex = 0;
1106                                         break;
1107                                 case DataControlCommands.LastPageCommandArgument:
1108                                         newIndex = PageCount - 1;
1109                                         break;
1110                                 case DataControlCommands.NextPageCommandArgument:
1111                                         if (PageIndex < PageCount - 1) newIndex = PageIndex + 1;
1112                                         break;
1113                                 case DataControlCommands.PreviousPageCommandArgument:
1114                                         if (PageIndex > 0) newIndex = PageIndex - 1;
1115                                         break;
1116                                 default:
1117                                         newIndex = int.Parse (param) - 1;
1118                                         break;
1119                                 }
1120                                 ShowPage (newIndex);
1121                                 break;
1122
1123                         case DataControlCommands.FirstPageCommandArgument:
1124                                 ShowPage (0);
1125                                 break;
1126
1127                         case DataControlCommands.LastPageCommandArgument:
1128                                 ShowPage (PageCount - 1);
1129                                 break;
1130
1131                         case DataControlCommands.NextPageCommandArgument:
1132                                 if (PageIndex < PageCount - 1)
1133                                         ShowPage (PageIndex + 1);
1134                                 break;
1135
1136                         case DataControlCommands.PreviousPageCommandArgument:
1137                                 if (PageIndex > 0)
1138                                         ShowPage (PageIndex - 1);
1139                                 break;
1140
1141                         case DataControlCommands.EditCommandName:
1142                                 ChangeMode (FormViewMode.Edit);
1143                                 break;
1144
1145                         case DataControlCommands.NewCommandName:
1146                                 ChangeMode (FormViewMode.Insert);
1147                                 break;
1148
1149                         case DataControlCommands.UpdateCommandName:
1150                                 UpdateItem (param, true);
1151                                 break;
1152
1153                         case DataControlCommands.CancelCommandName:
1154                                 CancelEdit ();
1155                                 break;
1156
1157                         case DataControlCommands.DeleteCommandName:
1158                                 DeleteItem ();
1159                                 break;
1160
1161                         case DataControlCommands.InsertCommandName:
1162                                 InsertItem (true);
1163                                 break;
1164                         }
1165                 }
1166
1167                 void ShowPage (int newIndex)
1168                 {
1169                         FormViewPageEventArgs args = new FormViewPageEventArgs (newIndex);
1170                         OnPageIndexChanging (args);
1171                         if (!args.Cancel) {
1172                                 newIndex = args.NewPageIndex;
1173                                 if (newIndex < 0 || newIndex >= PageCount)
1174                                         return;
1175                                 EndRowEdit ();
1176                                 PageIndex = newIndex;
1177                                 OnPageIndexChanged (EventArgs.Empty);
1178                         }
1179                 }
1180
1181                 public void ChangeMode (FormViewMode newMode)
1182                 {
1183                         FormViewModeEventArgs args = new FormViewModeEventArgs (newMode, false);
1184                         OnModeChanging (args);
1185                         if (!args.Cancel) {
1186                                 currentMode = args.NewMode;
1187                                 OnModeChanged (EventArgs.Empty);
1188                                 RequireBinding ();
1189                         }
1190                 }
1191
1192                 void CancelEdit ()
1193                 {
1194                         FormViewModeEventArgs args = new FormViewModeEventArgs (FormViewMode.ReadOnly, true);
1195                         OnModeChanging (args);
1196                         if (!args.Cancel) {
1197                                 EndRowEdit ();
1198                         }
1199                 }
1200
1201                 public virtual void UpdateItem (bool causesValidation)
1202                 {
1203                         UpdateItem (null, causesValidation);
1204                 }
1205
1206                 void UpdateItem (string param, bool causesValidation)
1207                 {
1208                         if (causesValidation)
1209                                 Page.Validate ();
1210
1211                         if (currentMode != FormViewMode.Edit) throw new NotSupportedException ();
1212
1213                         currentEditOldValues = oldEditValues.Values;
1214                         currentEditRowKeys = DataKey.Values;
1215                         currentEditNewValues = GetRowValues (false);
1216
1217                         FormViewUpdateEventArgs args = new FormViewUpdateEventArgs (param, currentEditRowKeys, currentEditOldValues, currentEditNewValues);
1218                         OnItemUpdating (args);
1219                         if (!args.Cancel) {
1220                                 DataSourceView view = GetData ();
1221                                 if (view == null) throw new HttpException ("The DataSourceView associated to data bound control was null");
1222                                 view.Update (currentEditRowKeys, currentEditNewValues, currentEditOldValues, new DataSourceViewOperationCallback (UpdateCallback));
1223                         } else
1224                                 EndRowEdit ();
1225                 }
1226
1227                 bool UpdateCallback (int recordsAffected, Exception exception)
1228                 {
1229                         FormViewUpdatedEventArgs dargs = new FormViewUpdatedEventArgs (recordsAffected, exception, currentEditRowKeys, currentEditOldValues, currentEditNewValues);
1230                         OnItemUpdated (dargs);
1231
1232                         if (!dargs.KeepInEditMode)
1233                                 EndRowEdit ();
1234
1235                         return dargs.ExceptionHandled;
1236                 }
1237
1238                 public virtual void InsertItem (bool causesValidation)
1239                 {
1240                         InsertItem (null, causesValidation);
1241                 }
1242
1243                 void InsertItem (string param, bool causesValidation)
1244                 {
1245                         if (causesValidation)
1246                                 Page.Validate ();
1247
1248                         if (currentMode != FormViewMode.Insert) throw new NotSupportedException ();
1249
1250                         currentEditNewValues = GetRowValues (true);
1251                         FormViewInsertEventArgs args = new FormViewInsertEventArgs (param, currentEditNewValues);
1252                         OnItemInserting (args);
1253                         if (!args.Cancel) {
1254                                 DataSourceView view = GetData ();
1255                                 if (view == null) throw new HttpException ("The DataSourceView associated to data bound control was null");
1256                                 view.Insert (currentEditNewValues, new DataSourceViewOperationCallback (InsertCallback));
1257                         } else
1258                                 EndRowEdit ();
1259                 }
1260
1261                 bool InsertCallback (int recordsAffected, Exception exception)
1262                 {
1263                         FormViewInsertedEventArgs dargs = new FormViewInsertedEventArgs (recordsAffected, exception, currentEditNewValues);
1264                         OnItemInserted (dargs);
1265
1266                         if (!dargs.KeepInInsertMode)
1267                                 EndRowEdit ();
1268
1269                         return dargs.ExceptionHandled;
1270                 }
1271
1272                 public virtual void DeleteItem ()
1273                 {
1274                         currentEditRowKeys = DataKey.Values;
1275                         currentEditNewValues = GetRowValues (true);
1276
1277                         FormViewDeleteEventArgs args = new FormViewDeleteEventArgs (PageIndex, currentEditRowKeys, currentEditNewValues);
1278                         OnItemDeleting (args);
1279
1280                         if (!args.Cancel) {
1281                                 if (PageIndex == PageCount - 1)
1282                                         PageIndex --;
1283
1284                                 RequireBinding ();
1285
1286                                 DataSourceView view = GetData ();
1287                                 if (view != null)
1288                                         view.Delete (currentEditRowKeys, currentEditNewValues, new DataSourceViewOperationCallback (DeleteCallback));
1289                                 else {
1290                                         FormViewDeletedEventArgs dargs = new FormViewDeletedEventArgs (0, null, currentEditRowKeys, currentEditNewValues);
1291                                         OnItemDeleted (dargs);
1292                                 }
1293                         }
1294                 }
1295
1296                 bool DeleteCallback (int recordsAffected, Exception exception)
1297                 {
1298                         FormViewDeletedEventArgs dargs = new FormViewDeletedEventArgs (recordsAffected, exception, currentEditRowKeys, currentEditNewValues);
1299                         OnItemDeleted (dargs);
1300                         return dargs.ExceptionHandled;
1301                 }
1302
1303                 void EndRowEdit ()
1304                 {
1305                         ChangeMode (DefaultMode);
1306                         oldEditValues = new DataKey (new OrderedDictionary ());
1307                         currentEditRowKeys = null;
1308                         currentEditOldValues = null;
1309                         currentEditNewValues = null;
1310                         RequireBinding ();
1311                 }
1312
1313                 protected internal override void LoadControlState (object ob)
1314                 {
1315                         if (ob == null) return;
1316                         object[] state = (object[]) ob;
1317                         base.LoadControlState (state[0]);
1318                         pageIndex = (int) state[1];
1319                         pageCount = (int) state[2];
1320                         currentMode = (FormViewMode) state[3];
1321                 }
1322
1323                 protected internal override object SaveControlState ()
1324                 {
1325                         object bstate = base.SaveControlState ();
1326                         return new object[] {
1327                                 bstate, pageIndex, pageCount, currentMode
1328                                         };
1329                 }
1330
1331                 protected override void TrackViewState()
1332                 {
1333                         base.TrackViewState();
1334                         if (pagerSettings != null) ((IStateManager)pagerSettings).TrackViewState();
1335                         if (footerStyle != null) ((IStateManager)footerStyle).TrackViewState();
1336                         if (headerStyle != null) ((IStateManager)headerStyle).TrackViewState();
1337                         if (pagerStyle != null) ((IStateManager)pagerStyle).TrackViewState();
1338                         if (rowStyle != null) ((IStateManager)rowStyle).TrackViewState();
1339                         if (editRowStyle != null) ((IStateManager)editRowStyle).TrackViewState();
1340                         if (insertRowStyle != null) ((IStateManager)insertRowStyle).TrackViewState();
1341                         if (emptyDataRowStyle != null) ((IStateManager)emptyDataRowStyle).TrackViewState();
1342                         if (key != null) ((IStateManager)key).TrackViewState();
1343                 }
1344
1345                 protected override object SaveViewState()
1346                 {
1347                         object[] states = new object [14];
1348                         states[0] = base.SaveViewState();
1349                         states[2] = (pagerSettings == null ? null : ((IStateManager)pagerSettings).SaveViewState());
1350                         states[4] = (footerStyle == null ? null : ((IStateManager)footerStyle).SaveViewState());
1351                         states[5] = (headerStyle == null ? null : ((IStateManager)headerStyle).SaveViewState());
1352                         states[6] = (pagerStyle == null ? null : ((IStateManager)pagerStyle).SaveViewState());
1353                         states[7] = (rowStyle == null ? null : ((IStateManager)rowStyle).SaveViewState());
1354                         states[8] = (insertRowStyle == null ? null : ((IStateManager)insertRowStyle).SaveViewState());
1355                         states[9] = (editRowStyle == null ? null : ((IStateManager)editRowStyle).SaveViewState());
1356                         states[10] = (emptyDataRowStyle == null ? null : ((IStateManager)emptyDataRowStyle).SaveViewState());
1357                         states[11] = (key == null ? null : ((IStateManager)key).SaveViewState());
1358                         states[12] = (oldEditValues == null ? null : ((IStateManager)oldEditValues).SaveViewState());
1359
1360                         for (int i = states.Length - 1; i >= 0; i--) {
1361                                 if (states [i] != null)
1362                                         return states;
1363                         }
1364
1365                         return null;
1366                 }
1367
1368                 protected override void LoadViewState (object savedState)
1369                 {
1370                         if (savedState == null) {
1371                                 base.LoadViewState (null);
1372                                 return;
1373                         }
1374
1375                         object [] states = (object []) savedState;
1376
1377                         base.LoadViewState (states[0]);
1378                         EnsureChildControls ();
1379
1380                         if (states[2] != null) ((IStateManager)PagerSettings).LoadViewState (states[2]);
1381                         if (states[4] != null) ((IStateManager)FooterStyle).LoadViewState (states[4]);
1382                         if (states[5] != null) ((IStateManager)HeaderStyle).LoadViewState (states[5]);
1383                         if (states[6] != null) ((IStateManager)PagerStyle).LoadViewState (states[6]);
1384                         if (states[7] != null) ((IStateManager)RowStyle).LoadViewState (states[7]);
1385                         if (states[8] != null) ((IStateManager)InsertRowStyle).LoadViewState (states[8]);
1386                         if (states[9] != null) ((IStateManager)EditRowStyle).LoadViewState (states[9]);
1387                         if (states[10] != null) ((IStateManager)EmptyDataRowStyle).LoadViewState (states[10]);
1388                         if (states[11] != null && DataKey != null) ((IStateManager)DataKey).LoadViewState (states[11]);
1389                         if (states[12] != null && oldEditValues != null) ((IStateManager)oldEditValues).LoadViewState (states[12]);
1390                 }
1391
1392                 protected internal override void Render (HtmlTextWriter writer)
1393                 {
1394                         switch (GridLines) {
1395                         case GridLines.Horizontal:
1396                                 writer.AddAttribute (HtmlTextWriterAttribute.Rules, "rows");
1397                                 writer.AddAttribute (HtmlTextWriterAttribute.Border, "1");
1398                                 break;
1399                         case GridLines.Vertical:
1400                                 writer.AddAttribute (HtmlTextWriterAttribute.Rules, "cols");
1401                                 writer.AddAttribute (HtmlTextWriterAttribute.Border, "1");
1402                                 break;
1403                         case GridLines.Both:
1404                                 writer.AddAttribute (HtmlTextWriterAttribute.Rules, "all");
1405                                 writer.AddAttribute (HtmlTextWriterAttribute.Border, "1");
1406                                 break;
1407                         default:
1408                                 writer.AddAttribute (HtmlTextWriterAttribute.Border, "0");
1409                                 break;
1410                         }
1411
1412                         writer.AddAttribute (HtmlTextWriterAttribute.Cellspacing, "0");
1413                         writer.AddStyleAttribute (HtmlTextWriterStyle.BorderCollapse, "collapse");
1414                         if (!string.IsNullOrEmpty (ControlStyle.CssClass))
1415                                 writer.AddAttribute (HtmlTextWriterAttribute.Class, ControlStyle.CssClass);
1416                         table.RenderBeginTag (writer);
1417
1418                         foreach (FormViewRow row in table.Rows)
1419                         {
1420                                 switch (row.RowType) {
1421                                 case DataControlRowType.Header:
1422                                         if (headerStyle != null)headerStyle.AddAttributesToRender (writer, row);
1423                                         break;
1424                                 case DataControlRowType.Footer:
1425                                         if (footerStyle != null) footerStyle.AddAttributesToRender (writer, row);
1426                                         break;
1427                                 case DataControlRowType.Pager:
1428                                         if (pagerStyle != null) pagerStyle.AddAttributesToRender (writer, row);
1429                                         break;
1430                                 case DataControlRowType.EmptyDataRow:
1431                                         if (emptyDataRowStyle != null) emptyDataRowStyle.AddAttributesToRender (writer, row);
1432                                         break;
1433                                 default:
1434                                         if (rowStyle != null) rowStyle.AddAttributesToRender (writer, row);
1435                                         break;
1436                                 }
1437
1438                                 if ((row.RowState & DataControlRowState.Edit) != 0 && editRowStyle != null)
1439                                         editRowStyle.AddAttributesToRender (writer, row);
1440                                 if ((row.RowState & DataControlRowState.Insert) != 0 && insertRowStyle != null)
1441                                         insertRowStyle.AddAttributesToRender (writer, row);
1442
1443                                 row.RenderBeginTag (writer);
1444
1445                                 for (int n=0; n<row.Cells.Count; n++)
1446                                         row.Cells[n].Render (writer);
1447
1448                                 row.RenderEndTag (writer);
1449                         }
1450                         table.RenderEndTag (writer);
1451                 }
1452
1453                 [MonoTODO]
1454                 PostBackOptions IPostBackContainer.GetPostBackOptions (IButtonControl control)
1455                 {
1456                         throw new NotImplementedException ();
1457                 }
1458
1459         }
1460 }
1461
1462 #endif