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         [DesignerAttribute ("System.Web.UI.Design.WebControls.FormViewDesigner, System.Design, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a", "System.ComponentModel.Design.IDesigner")]
  44         [ControlValuePropertyAttribute ("SelectedValue")]
  45         [DefaultEventAttribute ("PageIndexChanging")]
  46         [AspNetHostingPermissionAttribute (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  47         [AspNetHostingPermissionAttribute (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  48         public class FormView: CompositeDataBoundControl, IDataItemContainer
  49         {
  50                 object dataItem;
  51
  52                 Table table;
  53                 FormViewRow headerRow;
  54                 FormViewRow footerRow;
  55                 FormViewRow bottomPagerRow;
  56                 FormViewRow topPagerRow;
  57                 FormViewRow itemRow;
  58
  59                 IOrderedDictionary currentEditRowKeys;
  60                 IOrderedDictionary currentEditNewValues;
  61                 IOrderedDictionary currentEditOldValues;
  62
  63                 ITemplate pagerTemplate;
  64                 ITemplate emptyDataTemplate;
  65                 ITemplate headerTemplate;
  66                 ITemplate footerTemplate;
  67                 ITemplate editItemTemplate;
  68                 ITemplate insertItemTemplate;
  69                 ITemplate itemTemplate;
  70
  71                 PropertyDescriptor[] cachedKeyProperties;
  72                 readonly string[] emptyKeys = new string[0];
  73
  74                 // View state
  75                 PagerSettings pagerSettings;
  76
  77                 TableItemStyle editRowStyle;
  78                 TableItemStyle insertRowStyle;
  79                 TableItemStyle emptyDataRowStyle;
  80                 TableItemStyle footerStyle;
  81                 TableItemStyle headerStyle;
  82                 TableItemStyle pagerStyle;
  83                 TableItemStyle rowStyle;
  84
  85                 DataKey key;
  86                 DataKey oldEditValues;
  87                 int dataSourceCount;
  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 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, System.Design, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a", "System.Drawing.Design.UITypeEditor, System.Drawing, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")]
 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 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)]\r
 368             [BrowsableAttribute (false)]\r
 369                 public FormViewMode CurrentMode {
 370                         get {
 371                                 return currentMode;
 372                         }
 373                 }
 374
 375             [DefaultValueAttribute (FormViewMode.ReadOnly)]\r
 376             [WebCategoryAttribute ("Behavior")]\r
 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, System.Design, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a", "System.Drawing.Design.UITypeEditor, System.Drawing, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")]
 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 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)]\r
 429                 public virtual 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)]\r
 445                 public virtual 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 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 ITemplate FooterTemplate {
 494                         get { return footerTemplate; }
 495                         set { footerTemplate = value; RequireBinding (); }
 496                 }
 497
 498             [LocalizableAttribute (true)]\r
 499             [WebCategoryAttribute ("Appearance")]\r
 500             [DefaultValueAttribute ("")]\r
 501                 public 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 virtual 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 virtual 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 ITemplate HeaderTemplate {
 572                         get { return headerTemplate; }
 573                         set { headerTemplate = value; RequireBinding (); }
 574                 }
 575
 576             [LocalizableAttribute (true)]\r
 577             [WebCategoryAttribute ("Appearance")]\r
 578             [DefaultValueAttribute ("")]\r
 579                 public 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                 [DefaultValueAttribute (HorizontalAlign.NotSet)]
 592                 public virtual HorizontalAlign HorizontalAlign {
 593                         get {
 594                                 object ob = ViewState ["HorizontalAlign"];
 595                                 if (ob != null) return (HorizontalAlign) ob;
 596                                 return HorizontalAlign.NotSet;
 597                         }
 598                         set {
 599                                 ViewState ["HorizontalAlign"] = value;
 600                                 RequireBinding ();
 601                         }
 602                 }
 603
 604                 [DefaultValue (null)]
 605                 [TemplateContainer (typeof(FormView), BindingDirection.TwoWay)]
 606                 [PersistenceMode (PersistenceMode.InnerProperty)]
 607             [Browsable (false)]
 608                 public ITemplate InsertItemTemplate {
 609                         get { return insertItemTemplate; }
 610                         set { insertItemTemplate = value; RequireBinding (); }
 611                 }
 612
 613             [WebCategoryAttribute ("Styles")]
 614                 [PersistenceMode (PersistenceMode.InnerProperty)]
 615                 [NotifyParentProperty (true)]
 616                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
 617             [DefaultValueAttribute (null)]\r
 618                 public virtual TableItemStyle InsertRowStyle {
 619                         get {
 620                                 if (insertRowStyle == null) {
 621                                         insertRowStyle = new TableItemStyle ();
 622                                         if (IsTrackingViewState)
 623                                                 insertRowStyle.TrackViewState();
 624                                 }
 625                                 return insertRowStyle;
 626                         }
 627                 }
 628
 629                 [DefaultValue (null)]
 630                 [TemplateContainer (typeof(FormView), BindingDirection.TwoWay)]
 631                 [PersistenceMode (PersistenceMode.InnerProperty)]
 632             [Browsable (false)]
 633                 public ITemplate ItemTemplate {
 634                         get { return itemTemplate; }
 635                         set { itemTemplate = value; RequireBinding (); }
 636                 }
 637
 638                 [BrowsableAttribute (false)]
 639                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 640                 public int PageCount {
 641                         get {
 642                                 if (pageCount != -1) return pageCount;
 643                                 EnsureDataBound ();
 644                                 return pageCount;
 645                         }
 646                 }
 647
 648                 [WebCategoryAttribute ("Paging")]
 649             [BindableAttribute (true, BindingDirection.OneWay)]\r
 650                 [DefaultValueAttribute (0)]
 651                 public int PageIndex {
 652                         get {
 653                                 return pageIndex;
 654                         }
 655                         set {
 656                                 pageIndex = value;
 657                                 RequireBinding ();
 658                         }
 659                 }
 660
 661                 [WebCategoryAttribute ("Paging")]
 662                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Content)]
 663                 [NotifyParentPropertyAttribute (true)]
 664                 [PersistenceModeAttribute (PersistenceMode.InnerProperty)]
 665                 public PagerSettings PagerSettings {
 666                         get {
 667                                 if (pagerSettings == null) {
 668                                         pagerSettings = new PagerSettings (this);
 669                                         if (IsTrackingViewState)
 670                                                 ((IStateManager)pagerSettings).TrackViewState ();
 671                                 }
 672                                 return pagerSettings;
 673                         }
 674                 }
 675
 676             [WebCategoryAttribute ("Styles")]
 677                 [PersistenceMode (PersistenceMode.InnerProperty)]
 678                 [NotifyParentProperty (true)]
 679                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
 680                 public virtual TableItemStyle PagerStyle {
 681                         get {
 682                                 if (pagerStyle == null) {
 683                                         pagerStyle = new TableItemStyle ();
 684                                         if (IsTrackingViewState)
 685                                                 pagerStyle.TrackViewState();
 686                                 }
 687                                 return pagerStyle;
 688                         }
 689                 }
 690
 691
 692                 [DefaultValue (null)]
 693                 [TemplateContainer (typeof(FormView), BindingDirection.OneWay)]
 694                 [PersistenceMode (PersistenceMode.InnerProperty)]
 695             [Browsable (false)]
 696                 public ITemplate PagerTemplate {
 697                         get { return pagerTemplate; }
 698                         set { pagerTemplate = value; RequireBinding (); }
 699                 }
 700
 701                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]\r
 702                 [BrowsableAttribute (false)]\r
 703                 public FormViewRow Row {
 704                         get {
 705                                 EnsureDataBound ();
 706                                 return itemRow;
 707                         }
 708                 }
 709             \r
 710             [WebCategoryAttribute ("Styles")]
 711                 [PersistenceMode (PersistenceMode.InnerProperty)]
 712                 [NotifyParentProperty (true)]
 713                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
 714                 [DefaultValue (null)]
 715                 public virtual TableItemStyle RowStyle {
 716                         get {
 717                                 if (rowStyle == null) {
 718                                         rowStyle = new TableItemStyle ();
 719                                         if (IsTrackingViewState)
 720                                                 rowStyle.TrackViewState();
 721                                 }
 722                                 return rowStyle;
 723                         }
 724                 }
 725
 726             [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]\r
 727                 [BrowsableAttribute (false)]
 728                 public virtual object SelectedValue {
 729                         get { return DataKey.Value; }
 730                 }
 731
 732                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 733                 [BrowsableAttribute (false)]
 734                 public virtual FormViewRow TopPagerRow {
 735                         get {
 736                                 EnsureDataBound ();
 737                                 return topPagerRow;
 738                         }
 739                 }
 740
 741                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 742                 [BrowsableAttribute (false)]
 743                 public object DataItem {
 744                         get {
 745                                 EnsureDataBound ();
 746                                 return dataItem;
 747                         }
 748                 }
 749
 750                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 751                 [BrowsableAttribute (false)]
 752                 public int DataItemCount {
 753                         get { return PageCount; }
 754                 }
 755
 756                 [DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
 757                 [BrowsableAttribute (false)]
 758                 public int DataItemIndex {
 759                         get { return PageIndex; }
 760                 }
 761
 762                 public virtual bool IsBindableType (Type type)
 763                 {
 764                         return type.IsPrimitive || type == typeof(string) || type == typeof(DateTime) || type == typeof(Guid);
 765                 }
 766
 767                 protected override DataSourceSelectArguments CreateDataSourceSelectArguments ()
 768                 {
 769                         return base.CreateDataSourceSelectArguments ();
 770                 }
 771
 772                 protected virtual FormViewRow CreateRow (int rowIndex, DataControlRowType rowType, DataControlRowState rowState)
 773                 {
 774                         FormViewRow row = new FormViewRow (rowIndex, rowType, rowState);
 775                         OnItemCreated (EventArgs.Empty);
 776                         return row;
 777                 }
 778
 779                 void RequireBinding ()
 780                 {
 781                         if (Initialized) {
 782                                 RequiresDataBinding = true;
 783                                 pageCount = -1;
 784                         }
 785                 }
 786
 787                 protected virtual Table CreateTable ()
 788                 {
 789                         Table table = new Table ();
 790                         table.Caption = Caption;
 791                         table.CaptionAlign = CaptionAlign;
 792                         table.CellPadding = CellPadding;
 793                         table.CellSpacing = CellSpacing;
 794                         table.HorizontalAlign = HorizontalAlign;
 795                         table.BackImageUrl = BackImageUrl;
 796                         return table;
 797                 }
 798
 799                 protected override int CreateChildControls (IEnumerable data, bool dataBinding)
 800                 {
 801                         PagedDataSource dataSource;
 802
 803                         if (dataBinding) {
 804                                 DataSourceView view = GetData ();
 805                                 dataSource = new PagedDataSource ();
 806                                 dataSource.DataSource = data;
 807
 808                                 if (AllowPaging) {
 809                                         dataSource.AllowPaging = true;
 810                                         dataSource.PageSize = 1;
 811                                         dataSource.CurrentPageIndex = PageIndex;
 812                                         if (view.CanPage) {
 813                                                 dataSource.AllowServerPaging = true;
 814                                                 if (view.CanRetrieveTotalRowCount)
 815                                                         dataSource.VirtualCount = SelectArguments.TotalRowCount;
 816                                                 else {
 817                                                         dataSource.DataSourceView = view;
 818                                                         dataSource.DataSourceSelectArguments = SelectArguments;
 819                                                         dataSource.SetItemCountFromPageIndex (PageIndex + PagerSettings.PageButtonCount);
 820                                                 }
 821                                         }
 822                                 }
 823
 824                                 pageCount = dataSource.PageCount;
 825                         }
 826                         else
 827                         {
 828                                 dataSource = new PagedDataSource ();
 829                                 dataSource.DataSource = data;
 830                                 if (AllowPaging) {
 831                                         dataSource.AllowPaging = true;
 832                                         dataSource.PageSize = 1;
 833                                         dataSource.CurrentPageIndex = PageIndex;
 834                                 }
 835                         }
 836
 837                         bool showPager = AllowPaging && (PageCount > 1);
 838                         dataSourceCount = dataSource.Count;
 839
 840                         Controls.Clear ();
 841                         table = CreateTable ();
 842                         Controls.Add (table);
 843
 844                         if (!Page.IsPostBack)
 845                                 currentMode = DefaultMode;
 846
 847                         // Gets the current data item
 848
 849                         IEnumerator e = dataSource.GetEnumerator ();
 850                         if (e.MoveNext ())
 851                                 dataItem = e.Current;
 852                         else
 853                                 dataItem = null;
 854
 855                         // Main table creation
 856
 857                         if (HeaderText.Length != 0 || headerTemplate != null) {
 858                                 headerRow = CreateRow (-1, DataControlRowType.Header, DataControlRowState.Normal);
 859                                 InitializeRow (headerRow);
 860                                 table.Rows.Add (headerRow);
 861                         }
 862
 863                         if (showPager && PagerSettings.Position == PagerPosition.Top || PagerSettings.Position == PagerPosition.TopAndBottom) {
 864                                 topPagerRow = CreateRow (-1, DataControlRowType.Pager, DataControlRowState.Normal);
 865                                 InitializePager (topPagerRow, dataSource);
 866                                 table.Rows.Add (topPagerRow);
 867                         }
 868
 869                         if (dataSourceCount > 0) {
 870                                 DataControlRowState rstate = GetRowState ();
 871                                 itemRow = CreateRow (0, DataControlRowType.DataRow, rstate);
 872                                 InitializeRow (itemRow);
 873                                 table.Rows.Add (itemRow);
 874
 875                                 if (!dataBinding) {
 876                                         if (CurrentMode == FormViewMode.Edit)
 877                                                 oldEditValues = new DataKey (new OrderedDictionary ());
 878                                         key = new DataKey (new OrderedDictionary (), DataKeyNames);
 879                                 }
 880                         } else {
 881                                 itemRow = CreateRow (-1, DataControlRowType.EmptyDataRow, DataControlRowState.Normal);
 882                                 table.Rows.Add (itemRow);
 883                                 InitializeRow (itemRow);
 884                         }
 885
 886                         if (showPager && PagerSettings.Position == PagerPosition.Bottom || PagerSettings.Position == PagerPosition.TopAndBottom) {
 887                                 bottomPagerRow = CreateRow (-1, DataControlRowType.Pager, DataControlRowState.Normal);
 888                                 InitializePager (bottomPagerRow, dataSource);
 889                                 table.Rows.Add (bottomPagerRow);
 890                         }
 891
 892                         if (FooterText.Length != 0 || footerTemplate != null) {
 893                                 footerRow = CreateRow (-1, DataControlRowType.Footer, DataControlRowState.Normal);
 894                                 InitializeRow (footerRow);
 895                                 table.Rows.Add (footerRow);
 896                         }
 897
 898                         return dataSource.DataSourceCount;
 899                 }
 900
 901                 DataControlRowState GetRowState ()
 902                 {
 903                         DataControlRowState rstate = DataControlRowState.Normal;
 904                         if (CurrentMode == FormViewMode.Edit) rstate |= DataControlRowState.Edit;
 905                         else if (CurrentMode == FormViewMode.Insert) rstate |= DataControlRowState.Insert;
 906                         return rstate;
 907                 }
 908
 909                 protected virtual void InitializePager (FormViewRow row, PagedDataSource dataSource)
 910                 {
 911                         TableCell cell = new TableCell ();
 912
 913                         if (pagerTemplate != null)
 914                                 pagerTemplate.InstantiateIn (cell);
 915                         else
 916                                 cell.Controls.Add (PagerSettings.CreatePagerControl (dataSource.CurrentPageIndex, dataSource.PageCount));
 917
 918                         row.Cells.Add (cell);
 919                 }
 920
 921                 protected virtual void InitializeRow (FormViewRow row)
 922                 {
 923                         TableCell cell = new TableCell ();
 924
 925                         if (row.RowType == DataControlRowType.DataRow)
 926                         {
 927                                 if ((row.RowState & DataControlRowState.Edit) != 0) {
 928                                         if (editItemTemplate != null)
 929                                                 editItemTemplate.InstantiateIn (cell);
 930                                 } else if ((row.RowState & DataControlRowState.Insert) != 0) {
 931                                         if (insertItemTemplate != null)
 932                                                 insertItemTemplate.InstantiateIn (cell);
 933                                 } else if (itemTemplate != null)
 934                                         itemTemplate.InstantiateIn (cell);
 935                         }
 936                         else if (row.RowType == DataControlRowType.EmptyDataRow)
 937                         {
 938                                 if (emptyDataTemplate != null)
 939                                         emptyDataTemplate.InstantiateIn (cell);
 940                                 else
 941                                         cell.Text = EmptyDataText;
 942                         }
 943                         else if (row.RowType == DataControlRowType.Footer)
 944                         {
 945                                 if (footerTemplate != null)
 946                                         footerTemplate.InstantiateIn (cell);
 947                                 else
 948                                         cell.Text = FooterText;
 949                         }
 950                         else if (row.RowType == DataControlRowType.Header)
 951                         {
 952                                 if (headerTemplate != null)
 953                                         headerTemplate.InstantiateIn (cell);
 954                                 else
 955                                         cell.Text = HeaderText;
 956                         }
 957                         row.Cells.Add (cell);
 958                 }
 959
 960                 IOrderedDictionary CreateRowDataKey (object dataItem)
 961                 {
 962                         if (cachedKeyProperties == null) {
 963                                 PropertyDescriptorCollection props = TypeDescriptor.GetProperties (dataItem);
 964                                 cachedKeyProperties = new PropertyDescriptor [DataKeyNames.Length];
 965                                 for (int n=0; n<DataKeyNames.Length; n++) {
 966                                         PropertyDescriptor p = props [DataKeyNames[n]];
 967                                         if (p == null)
 968                                                 new InvalidOperationException ("Property '" + DataKeyNames[n] + "' not found in object of type " + dataItem.GetType());
 969                                         cachedKeyProperties [n] = p;
 970                                 }
 971                         }
 972
 973                         OrderedDictionary dic = new OrderedDictionary ();
 974                         foreach (PropertyDescriptor p in cachedKeyProperties)
 975                                 dic [p.Name] = p.GetValue (dataItem);
 976                         return dic;
 977                 }
 978
 979                 IOrderedDictionary GetRowValues (bool includePrimaryKey)
 980                 {
 981                         OrderedDictionary dic = new OrderedDictionary ();
 982                         ExtractRowValues (dic, includePrimaryKey);
 983                         return dic;
 984                 }
 985
 986                 protected virtual void ExtractRowValues (IOrderedDictionary fieldValues, bool includeKeys)
 987                 {
 988                         DataControlRowState rowState = Row.RowState;
 989                         IBindableTemplate bt;
 990
 991                         if ((rowState & DataControlRowState.Insert) != 0)
 992                                 bt = insertItemTemplate as IBindableTemplate;
 993                         else if ((rowState & DataControlRowState.Edit) != 0)
 994                                 bt = editItemTemplate as IBindableTemplate;
 995                         else
 996                                 return;
 997
 998                         if (bt != null) {
 999                                 IOrderedDictionary values = bt.ExtractValues (Row.Cells [0]);
1000                                 foreach (DictionaryEntry e in values) {
1001                                         if (includeKeys || Array.IndexOf (DataKeyNames, e.Key) == -1)
1002                                                 fieldValues [e.Key] = e.Value;
1003                                 }
1004                         }
1005                 }
1006
1007                 protected override HtmlTextWriterTag TagKey {
1008                         get {
1009                                 return HtmlTextWriterTag.Table;
1010                         }
1011                 }
1012
1013                 public sealed override void DataBind ()
1014                 {
1015                         DataSourceView view = GetData ();
1016                         if (AllowPaging && view.CanPage) {
1017                                 SelectArguments.StartRowIndex = PageIndex;
1018                                 SelectArguments.MaximumRows = 1;
1019                                 if (view.CanRetrieveTotalRowCount)
1020                                         SelectArguments.RetrieveTotalRowCount = true;
1021                         }
1022
1023                         cachedKeyProperties = null;
1024                         base.DataBind ();
1025
1026                         if (dataSourceCount > 0) {
1027                                 if (CurrentMode == FormViewMode.Edit)
1028                                         oldEditValues = new DataKey (GetRowValues (true));
1029                                 key = new DataKey (CreateRowDataKey (dataItem), DataKeyNames);
1030                         }
1031                 }
1032
1033                 protected override void PerformDataBinding (IEnumerable data)
1034                 {
1035                         base.PerformDataBinding (data);
1036                 }
1037
1038                 protected override void OnInit (EventArgs e)
1039                 {
1040                         Page.RegisterRequiresControlState (this);
1041                         base.OnInit (e);
1042                 }
1043
1044                 protected override void OnDataSourceViewChanged (object sender, EventArgs e)
1045                 {
1046                         base.OnDataSourceViewChanged (sender, e);
1047                         RequireBinding ();
1048                 }
1049
1050                 protected override bool OnBubbleEvent (object source, EventArgs e)
1051                 {
1052                         FormViewCommandEventArgs args = e as FormViewCommandEventArgs;
1053                         if (args != null) {
1054                                 OnItemCommand (args);
1055                                 ProcessEvent (args.CommandName, args.CommandArgument as string);
1056                         }
1057                         return base.OnBubbleEvent (source, e);
1058                 }
1059
1060                 // This is prolly obsolete
1061                 protected virtual void RaisePostBackEvent (string eventArgument)
1062                 {
1063                         int i = eventArgument.IndexOf ('$');
1064                         if (i != -1)
1065                                 ProcessEvent (eventArgument.Substring (0, i), eventArgument.Substring (i + 1));
1066                         else
1067                                 ProcessEvent (eventArgument, null);
1068                 }
1069
1070                 void ProcessEvent (string eventName, string param)
1071                 {
1072                         switch (eventName)
1073                         {
1074                                 case "Page":
1075                                         int newIndex = -1;
1076                                         switch (param) {
1077                                                 case "First":
1078                                                         newIndex = 0;
1079                                                         break;
1080                                                 case "Last":
1081                                                         newIndex = PageCount - 1;
1082                                                         break;
1083                                                 case "Next":
1084                                                         if (PageIndex < PageCount - 1) newIndex = PageIndex + 1;
1085                                                         break;
1086                                                 case "Prev":
1087                                                         if (PageIndex > 0) newIndex = PageIndex - 1;
1088                                                         break;
1089                                                 default:
1090                                                         newIndex = int.Parse (param) - 1;
1091                                                         break;
1092                                         }
1093                                         ShowPage (newIndex);
1094                                         break;
1095
1096                                 case "First":
1097                                         ShowPage (0);
1098                                         break;
1099
1100                                 case "Last":
1101                                         ShowPage (PageCount - 1);
1102                                         break;
1103
1104                                 case "Next":
1105                                         if (PageIndex < PageCount - 1)
1106                                                 ShowPage (PageIndex + 1);
1107                                         break;
1108
1109                                 case "Prev":
1110                                         if (PageIndex > 0)
1111                                                 ShowPage (PageIndex - 1);
1112                                         break;
1113
1114                                 case "Edit":
1115                                         ChangeMode (FormViewMode.Edit);
1116                                         break;
1117
1118                                 case "New":
1119                                         ChangeMode (FormViewMode.Insert);
1120                                         break;
1121
1122                                 case "Update":
1123                                         UpdateItem (param, true);
1124                                         break;
1125
1126                                 case "Cancel":
1127                                         CancelEdit ();
1128                                         break;
1129
1130                                 case "Delete":
1131                                         DeleteItem ();
1132                                         break;
1133
1134                                 case "Insert":
1135                                         InsertItem (true);
1136                                         break;
1137                         }
1138                 }
1139
1140                 void ShowPage (int newIndex)
1141                 {
1142                         FormViewPageEventArgs args = new FormViewPageEventArgs (newIndex);
1143                         OnPageIndexChanging (args);
1144                         if (!args.Cancel) {
1145                                 EndRowEdit ();
1146                                 PageIndex = args.NewPageIndex;
1147                                 OnPageIndexChanged (EventArgs.Empty);
1148                         }
1149                 }
1150
1151                 public void ChangeMode (FormViewMode newMode)
1152                 {
1153                         FormViewModeEventArgs args = new FormViewModeEventArgs (newMode, false);
1154                         OnModeChanging (args);
1155                         if (!args.Cancel) {
1156                                 currentMode = args.NewMode;
1157                                 OnModeChanged (EventArgs.Empty);
1158                                 RequireBinding ();
1159                         }
1160                 }
1161
1162                 void CancelEdit ()
1163                 {
1164                         FormViewModeEventArgs args = new FormViewModeEventArgs (FormViewMode.ReadOnly, true);
1165                         OnModeChanging (args);
1166                         if (!args.Cancel) {
1167                                 EndRowEdit ();
1168                         }
1169                 }
1170
1171                 public virtual void UpdateItem (bool causesValidation)
1172                 {
1173                         UpdateItem (null, causesValidation);
1174                 }
1175
1176                 void UpdateItem (string param, bool causesValidation)
1177                 {
1178                         if (causesValidation)
1179                                 Page.Validate ();
1180
1181                         if (currentMode != FormViewMode.Edit) throw new NotSupportedException ();
1182
1183                         currentEditOldValues = oldEditValues.Values;
1184                         currentEditRowKeys = DataKey.Values;
1185                         currentEditNewValues = GetRowValues (false);
1186
1187                         FormViewUpdateEventArgs args = new FormViewUpdateEventArgs (param, currentEditRowKeys, currentEditOldValues, currentEditNewValues);
1188                         OnItemUpdating (args);
1189                         if (!args.Cancel) {
1190                                 DataSourceView view = GetData ();
1191                                 if (view == null) throw new HttpException ("The DataSourceView associated to data bound control was null");
1192                                 view.Update (currentEditRowKeys, currentEditNewValues, currentEditOldValues, new DataSourceViewOperationCallback (UpdateCallback));
1193                         } else
1194                                 EndRowEdit ();
1195                 }
1196
1197         bool UpdateCallback (int recordsAffected, Exception exception)
1198                 {
1199                         FormViewUpdatedEventArgs dargs = new FormViewUpdatedEventArgs (recordsAffected, exception, currentEditRowKeys, currentEditOldValues, currentEditNewValues);
1200                         OnItemUpdated (dargs);
1201
1202                         if (!dargs.KeepInEditMode)
1203                                 EndRowEdit ();
1204
1205                         return dargs.ExceptionHandled;
1206                 }
1207
1208                 public virtual void InsertItem (bool causesValidation)
1209                 {
1210                         InsertItem (null, causesValidation);
1211                 }
1212
1213                 void InsertItem (string param, bool causesValidation)
1214                 {
1215                         if (causesValidation)
1216                                 Page.Validate ();
1217
1218                         if (currentMode != FormViewMode.Insert) throw new NotSupportedException ();
1219
1220                         currentEditNewValues = GetRowValues (true);
1221                         FormViewInsertEventArgs args = new FormViewInsertEventArgs (param, currentEditNewValues);
1222                         OnItemInserting (args);
1223                         if (!args.Cancel) {
1224                                 DataSourceView view = GetData ();
1225                                 if (view == null) throw new HttpException ("The DataSourceView associated to data bound control was null");
1226                                 view.Insert (currentEditNewValues, new DataSourceViewOperationCallback (InsertCallback));
1227                         } else
1228                                 EndRowEdit ();
1229                 }
1230
1231         bool InsertCallback (int recordsAffected, Exception exception)
1232                 {
1233                         FormViewInsertedEventArgs dargs = new FormViewInsertedEventArgs (recordsAffected, exception, currentEditNewValues);
1234                         OnItemInserted (dargs);
1235
1236                         if (!dargs.KeepInInsertMode)
1237                                 EndRowEdit ();
1238
1239                         return dargs.ExceptionHandled;
1240                 }
1241
1242                 public void DeleteItem ()
1243                 {
1244                         currentEditRowKeys = DataKey.Values;
1245                         currentEditNewValues = GetRowValues (true);
1246
1247                         FormViewDeleteEventArgs args = new FormViewDeleteEventArgs (PageIndex, currentEditRowKeys, currentEditNewValues);
1248                         OnItemDeleting (args);
1249
1250                         if (!args.Cancel) {
1251                                 if (PageIndex == PageCount - 1)
1252                                         PageIndex --;
1253
1254                                 RequireBinding ();
1255
1256                                 DataSourceView view = GetData ();
1257                                 if (view != null)
1258                                         view.Delete (currentEditRowKeys, currentEditNewValues, new DataSourceViewOperationCallback (DeleteCallback));
1259                                 else {
1260                                         FormViewDeletedEventArgs dargs = new FormViewDeletedEventArgs (0, null, currentEditRowKeys, currentEditNewValues);
1261                                         OnItemDeleted (dargs);
1262                                 }
1263                         }
1264                 }
1265
1266         bool DeleteCallback (int recordsAffected, Exception exception)
1267                 {
1268                         FormViewDeletedEventArgs dargs = new FormViewDeletedEventArgs (recordsAffected, exception, currentEditRowKeys, currentEditNewValues);
1269                         OnItemDeleted (dargs);
1270                         return dargs.ExceptionHandled;
1271                 }
1272
1273                 void EndRowEdit ()
1274                 {
1275                         ChangeMode (DefaultMode);
1276                         oldEditValues = new DataKey (new OrderedDictionary ());
1277                         currentEditRowKeys = null;
1278                         currentEditOldValues = null;
1279                         currentEditNewValues = null;
1280                         RequireBinding ();
1281                 }
1282
1283                 protected internal override void LoadControlState (object ob)
1284                 {
1285                         if (ob == null) return;
1286                         object[] state = (object[]) ob;
1287                         base.LoadControlState (state[0]);
1288                         pageIndex = (int) state[1];
1289                         pageCount = (int) state[2];
1290                         currentMode = (FormViewMode) state[3];
1291                 }
1292
1293                 protected internal override object SaveControlState ()
1294                 {
1295                         object bstate = base.SaveControlState ();
1296                         return new object[] {
1297                                 bstate, pageIndex, pageCount, currentMode
1298                         };
1299                 }
1300
1301                 protected override void TrackViewState()
1302                 {
1303                         base.TrackViewState();
1304                         if (pagerSettings != null) ((IStateManager)pagerSettings).TrackViewState();
1305                         if (footerStyle != null) ((IStateManager)footerStyle).TrackViewState();
1306                         if (headerStyle != null) ((IStateManager)headerStyle).TrackViewState();
1307                         if (pagerStyle != null) ((IStateManager)pagerStyle).TrackViewState();
1308                         if (rowStyle != null) ((IStateManager)rowStyle).TrackViewState();
1309                         if (editRowStyle != null) ((IStateManager)editRowStyle).TrackViewState();
1310                         if (insertRowStyle != null) ((IStateManager)insertRowStyle).TrackViewState();
1311                         if (emptyDataRowStyle != null) ((IStateManager)emptyDataRowStyle).TrackViewState();
1312                         if (key != null) ((IStateManager)key).TrackViewState();
1313                 }
1314
1315                 protected override object SaveViewState()
1316                 {
1317                         object[] states = new object [14];
1318                         states[0] = base.SaveViewState();
1319                         states[2] = (pagerSettings == null ? null : ((IStateManager)pagerSettings).SaveViewState());
1320                         states[4] = (footerStyle == null ? null : ((IStateManager)footerStyle).SaveViewState());
1321                         states[5] = (headerStyle == null ? null : ((IStateManager)headerStyle).SaveViewState());
1322                         states[6] = (pagerStyle == null ? null : ((IStateManager)pagerStyle).SaveViewState());
1323                         states[7] = (rowStyle == null ? null : ((IStateManager)rowStyle).SaveViewState());
1324                         states[8] = (insertRowStyle == null ? null : ((IStateManager)insertRowStyle).SaveViewState());
1325                         states[9] = (editRowStyle == null ? null : ((IStateManager)editRowStyle).SaveViewState());
1326                         states[10] = (emptyDataRowStyle == null ? null : ((IStateManager)emptyDataRowStyle).SaveViewState());
1327                         states[11] = (key == null ? null : ((IStateManager)key).SaveViewState());
1328                         states[12] = (oldEditValues == null ? null : ((IStateManager)oldEditValues).SaveViewState());
1329
1330                         for (int i = states.Length - 1; i >= 0; i--) {
1331                                 if (states [i] != null)
1332                                         return states;
1333                         }
1334
1335                         return null;
1336                 }
1337
1338                 protected override void LoadViewState (object savedState)
1339                 {
1340                         if (savedState == null) {
1341                                 base.LoadViewState (null);
1342                                 return;
1343                         }
1344
1345                         object [] states = (object []) savedState;
1346
1347                         base.LoadViewState (states[0]);
1348                         EnsureChildControls ();
1349
1350                         if (states[2] != null) ((IStateManager)PagerSettings).LoadViewState (states[2]);
1351                         if (states[4] != null) ((IStateManager)FooterStyle).LoadViewState (states[4]);
1352                         if (states[5] != null) ((IStateManager)HeaderStyle).LoadViewState (states[5]);
1353                         if (states[6] != null) ((IStateManager)PagerStyle).LoadViewState (states[6]);
1354                         if (states[7] != null) ((IStateManager)RowStyle).LoadViewState (states[7]);
1355                         if (states[8] != null) ((IStateManager)InsertRowStyle).LoadViewState (states[8]);
1356                         if (states[9] != null) ((IStateManager)EditRowStyle).LoadViewState (states[9]);
1357                         if (states[10] != null) ((IStateManager)EmptyDataRowStyle).LoadViewState (states[10]);
1358                         if (states[11] != null && DataKey != null) ((IStateManager)DataKey).LoadViewState (states[11]);
1359                         if (states[12] != null && oldEditValues != null) ((IStateManager)oldEditValues).LoadViewState (states[12]);
1360                 }
1361
1362                 protected override void Render (HtmlTextWriter writer)
1363                 {
1364                         switch (GridLines) {
1365                                 case GridLines.Horizontal:
1366                                         writer.AddAttribute (HtmlTextWriterAttribute.Rules, "rows");
1367                                         writer.AddAttribute (HtmlTextWriterAttribute.Border, "1");
1368                                         break;
1369                                 case GridLines.Vertical:
1370                                         writer.AddAttribute (HtmlTextWriterAttribute.Rules, "cols");
1371                                         writer.AddAttribute (HtmlTextWriterAttribute.Border, "1");
1372                                         break;
1373                                 case GridLines.Both:
1374                                         writer.AddAttribute (HtmlTextWriterAttribute.Rules, "all");
1375                                         writer.AddAttribute (HtmlTextWriterAttribute.Border, "1");
1376                                         break;
1377                                 default:
1378                                         writer.AddAttribute (HtmlTextWriterAttribute.Border, "0");
1379                                         break;
1380                         }
1381
1382                         writer.AddAttribute (HtmlTextWriterAttribute.Cellspacing, "0");
1383                         writer.AddStyleAttribute (HtmlTextWriterStyle.BorderCollapse, "collapse");
1384                         table.RenderBeginTag (writer);
1385
1386                         foreach (FormViewRow row in table.Rows)
1387                         {
1388                                 switch (row.RowType) {
1389                                         case DataControlRowType.Header:
1390                                                 if (headerStyle != null)headerStyle.AddAttributesToRender (writer, row);
1391                                                 break;
1392                                         case DataControlRowType.Footer:
1393                                                 if (footerStyle != null) footerStyle.AddAttributesToRender (writer, row);
1394                                                 break;
1395                                         case DataControlRowType.Pager:
1396                                                 if (pagerStyle != null) pagerStyle.AddAttributesToRender (writer, row);
1397                                                 break;
1398                                         case DataControlRowType.EmptyDataRow:
1399                                                 if (emptyDataRowStyle != null) emptyDataRowStyle.AddAttributesToRender (writer, row);
1400                                                 break;
1401                                         default:
1402                                                 if (rowStyle != null) rowStyle.AddAttributesToRender (writer, row);
1403                                                 break;
1404                                 }
1405
1406                                 if ((row.RowState & DataControlRowState.Edit) != 0 && editRowStyle != null)
1407                                         editRowStyle.AddAttributesToRender (writer, row);
1408                                 if ((row.RowState & DataControlRowState.Insert) != 0 && insertRowStyle != null)
1409                                         insertRowStyle.AddAttributesToRender (writer, row);
1410
1411                                 row.RenderBeginTag (writer);
1412
1413                                 for (int n=0; n<row.Cells.Count; n++)
1414                                         row.Cells[n].Render (writer);
1415
1416                                 row.RenderEndTag (writer);
1417                         }
1418                         table.RenderEndTag (writer);
1419                 }
1420         }
1421 }
1422
1423 #endif