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

   1 //
   2 // System.Web.UI.WebControls.DataList.cs
   3 //
   4 // Author:
   5 //      Sebastien Pouliot  <sebastien@ximian.com>
   6 //
   7 // Copyright (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 using System.Collections;
  30 using System.ComponentModel;
  31 using System.Globalization;
  32 using System.Security.Permissions;
  33 using System.Web.Util;
  34
  35 namespace System.Web.UI.WebControls {
  36
  37         // CAS
  38         [AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  39         [AspNetHostingPermission (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  40         // attributes
  41         [Designer ("System.Web.UI.Design.WebControls.DataListDesigner, " + Consts.AssemblySystem_Design, "System.ComponentModel.Design.IDesigner")]
  42 #if NET_2_0
  43         [ControlValueProperty ("SelectedValue")]
  44         [Editor ("System.Web.UI.Design.WebControls.DataListComponentEditor, " + Consts.AssemblySystem_Design, "System.ComponentModel.ComponentEditor, " + Consts.AssemblySystem)]
  45 #else
  46         [Editor ("System.Web.UI.Design.WebControls.DataListComponentEditor, " + Consts.AssemblySystem_Design, typeof (System.ComponentModel.ComponentEditor))]
  47 #endif
  48         public class DataList : BaseDataList, INamingContainer, IRepeatInfoUser {
  49
  50                 public const string CancelCommandName = "Cancel";
  51                 public const string DeleteCommandName = "Delete";
  52                 public const string EditCommandName = "Edit";
  53                 public const string SelectCommandName = "Select";
  54                 public const string UpdateCommandName = "Update";
  55
  56
  57                 private static readonly object cancelCommandEvent = new object ();
  58                 private static readonly object deleteCommandEvent = new object ();
  59                 private static readonly object editCommandEvent = new object ();
  60                 private static readonly object itemCommandEvent = new object ();
  61                 private static readonly object itemCreatedEvent = new object ();
  62                 private static readonly object itemDataBoundEvent = new object ();
  63                 private static readonly object updateCommandEvent = new object ();
  64
  65                 private TableItemStyle alternatingItemStyle;
  66                 private TableItemStyle editItemStyle;
  67                 private TableItemStyle footerStyle;
  68                 private TableItemStyle headerStyle;
  69                 private TableItemStyle itemStyle;
  70                 private TableItemStyle selectedItemStyle;
  71                 private TableItemStyle separatorStyle;
  72
  73                 private ITemplate alternatingItemTemplate;
  74                 private ITemplate editItemTemplate;
  75                 private ITemplate footerTemplate;
  76                 private ITemplate headerTemplate;
  77                 private ITemplate itemTemplate;
  78                 private ITemplate selectedItemTemplate;
  79                 private ITemplate separatorTemplate;
  80
  81                 private DataListItemCollection items;
  82                 private ArrayList list;
  83                 private int idx;
  84
  85 #if NET_2_0
  86                 private int editIndex;
  87                 private int selectedIndex;
  88
  89                 public DataList ()
  90                 {
  91                         editIndex = -1;
  92                         selectedIndex = -1;
  93                         idx = -1;
  94                 }
  95 #else
  96                 public DataList ()
  97                 {
  98                         idx = -1;
  99                 }
 100 #endif
 101
 102
 103                 [DefaultValue (null)]
 104                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
 105                 [NotifyParentProperty (true)]
 106                 [PersistenceMode (PersistenceMode.InnerProperty)]
 107                 [WebSysDescription ("")]
 108                 [WebCategory ("Style")]
 109                 public virtual TableItemStyle AlternatingItemStyle {
 110                         get {
 111                                 if (alternatingItemStyle == null) {
 112                                         alternatingItemStyle = new TableItemStyle ();
 113                                         if (IsTrackingViewState) {
 114                                                 alternatingItemStyle.TrackViewState ();
 115                                         }
 116                                 }
 117                                 return alternatingItemStyle;
 118                         }
 119                 }
 120
 121                 [Browsable (false)]
 122                 [DefaultValue (null)]
 123                 [TemplateContainer (typeof (DataListItem))]
 124                 [PersistenceMode (PersistenceMode.InnerProperty)]
 125                 [WebSysDescription ("")]
 126                 [WebCategory ("Style")]
 127                 public virtual ITemplate AlternatingItemTemplate {
 128                         get { return alternatingItemTemplate; }
 129                         set { alternatingItemTemplate = value; }
 130                 }
 131
 132                 [DefaultValue (-1)]
 133                 [WebSysDescription ("")]
 134                 [WebCategory ("Misc")]
 135                 public virtual int EditItemIndex {
 136                         get {
 137                                 object o = ViewState ["EditItemIndex"];
 138                                 return (o == null) ? -1 : (int) o;
 139                         }
 140                         set {
 141                                 if (value < -1)
 142                                         throw new ArgumentOutOfRangeException ("EditItemIndex", "< -1");
 143                                 ViewState ["EditItemIndex"] = value;
 144                         }
 145                 }
 146
 147                 [DefaultValue (null)]
 148                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
 149                 [NotifyParentProperty (true)]
 150                 [PersistenceMode (PersistenceMode.InnerProperty)]
 151                 [WebSysDescription ("")]
 152                 [WebCategory ("Style")]
 153                 public virtual TableItemStyle EditItemStyle {
 154                         get {
 155                                 if (editItemStyle == null) {
 156                                         editItemStyle = new TableItemStyle ();
 157                                         if (IsTrackingViewState) {
 158                                                 editItemStyle.TrackViewState ();
 159                                         }
 160                                 }
 161                                 return editItemStyle;
 162                         }
 163                 }
 164
 165                 [Browsable (false)]
 166                 [DefaultValue (null)]
 167                 [TemplateContainer (typeof (DataListItem))]
 168                 [PersistenceMode (PersistenceMode.InnerProperty)]
 169                 [WebSysDescription ("")]
 170                 [WebCategory ("Style")]
 171                 public virtual ITemplate EditItemTemplate {
 172                         get { return editItemTemplate; }
 173                         set { editItemTemplate = value; }
 174                 }
 175
 176                 [DefaultValue (false)]
 177                 [WebSysDescription ("")]
 178                 [WebCategory ("Misc")]
 179                 public virtual bool ExtractTemplateRows {
 180                         get {
 181                                 object o = ViewState ["ExtractTemplateRows"];
 182                                 return (o == null) ? false : (bool) o;
 183                         }
 184                         set { ViewState ["ExtractTemplateRows"] = value; }
 185                 }
 186
 187                 [DefaultValue (null)]
 188                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
 189                 [NotifyParentProperty (true)]
 190                 [PersistenceMode (PersistenceMode.InnerProperty)]
 191                 [WebSysDescription ("")]
 192                 [WebCategory ("Style")]
 193                 public virtual TableItemStyle FooterStyle {
 194                         get {
 195                                 if (footerStyle == null) {
 196                                         footerStyle = new TableItemStyle ();
 197                                         if (IsTrackingViewState) {
 198                                                 footerStyle.TrackViewState ();
 199                                         }
 200                                 }
 201                                 return footerStyle;
 202                         }
 203                 }
 204
 205                 [Browsable (false)]
 206                 [DefaultValue (null)]
 207                 [TemplateContainer (typeof (DataListItem))]
 208                 [PersistenceMode (PersistenceMode.InnerProperty)]
 209                 [WebSysDescription ("")]
 210                 [WebCategory ("Style")]
 211                 public virtual ITemplate FooterTemplate {
 212                         get { return footerTemplate; }
 213                         set { footerTemplate = value; }
 214                 }
 215
 216                 // yes! they do NOT match in fx1.1
 217                 [DefaultValue (GridLines.None)]
 218                 public override GridLines GridLines {
 219                         get {
 220                                 if (!ControlStyleCreated) {
 221 #if NET_2_0
 222                                         return GridLines.None;
 223 #else
 224                                         return GridLines.Both;
 225 #endif
 226                                 }
 227                                 return TableStyle.GridLines;
 228                         }
 229                         set { TableStyle.GridLines = value; }
 230                 }
 231
 232                 [DefaultValue (null)]
 233                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
 234                 [NotifyParentProperty (true)]
 235                 [PersistenceMode (PersistenceMode.InnerProperty)]
 236                 [WebSysDescription ("")]
 237                 [WebCategory ("Style")]
 238                 public virtual TableItemStyle HeaderStyle {
 239                         get {
 240                                 if (headerStyle == null) {
 241                                         headerStyle = new TableItemStyle ();
 242                                         if (IsTrackingViewState) {
 243                                                 headerStyle.TrackViewState ();
 244                                         }
 245                                 }
 246                                 return headerStyle;
 247                         }
 248                 }
 249
 250                 [Browsable (false)]
 251                 [DefaultValue (null)]
 252                 [TemplateContainer (typeof (DataListItem))]
 253                 [PersistenceMode (PersistenceMode.InnerProperty)]
 254                 [WebSysDescription ("")]
 255                 [WebCategory ("Style")]
 256                 public virtual ITemplate HeaderTemplate {
 257                         get { return headerTemplate; }
 258                         set { headerTemplate = value; }
 259                 }
 260
 261                 [Browsable (false)]
 262                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 263                 [WebSysDescription ("")]
 264                 [WebCategory ("Style")]
 265                 public virtual DataListItemCollection Items {
 266                         get {
 267                                 if (items == null)
 268                                         items = new DataListItemCollection (ItemList);
 269                                 return items;
 270                         }
 271                 }
 272
 273                 [DefaultValue (null)]
 274                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
 275                 [NotifyParentProperty (true)]
 276                 [PersistenceMode (PersistenceMode.InnerProperty)]
 277                 [WebSysDescription ("")]
 278                 [WebCategory ("Style")]
 279                 public virtual TableItemStyle ItemStyle {
 280                         get {
 281                                 if (itemStyle == null) {
 282                                         itemStyle = new TableItemStyle ();
 283                                         if (IsTrackingViewState) {
 284                                                 itemStyle.TrackViewState ();
 285                                         }
 286                                 }
 287                                 return itemStyle;
 288                         }
 289                 }
 290
 291                 [Browsable (false)]
 292                 [DefaultValue (null)]
 293                 [TemplateContainer (typeof (DataListItem))]
 294                 [PersistenceMode (PersistenceMode.InnerProperty)]
 295                 [WebSysDescription ("")]
 296                 [WebCategory ("Style")]
 297                 public virtual ITemplate ItemTemplate {
 298                         get { return itemTemplate; }
 299                         set { itemTemplate = value; }
 300                 }
 301
 302 #if ONLY_1_1
 303                 [Bindable (true)]
 304 #endif
 305                 [DefaultValue (0)]
 306                 [WebSysDescription ("")]
 307                 [WebCategory ("Layout")]
 308                 public virtual int RepeatColumns {
 309                         get {
 310                                 object o = ViewState ["RepeatColumns"];
 311                                 return (o == null) ? 0 : (int) o;
 312                         }
 313                         set { ViewState ["RepeatColumns"] = value; }
 314                 }
 315
 316 #if ONLY_1_1
 317                 [Bindable (true)]
 318 #endif
 319                 [DefaultValue (RepeatDirection.Vertical)]
 320                 [WebSysDescription ("")]
 321                 [WebCategory ("Layout")]
 322                 public virtual RepeatDirection RepeatDirection {
 323                         get {
 324                                 object o = ViewState ["RepeatDirection"];
 325                                 return (o == null) ? RepeatDirection.Vertical : (RepeatDirection) o;
 326                         }
 327                         set { ViewState ["RepeatDirection"] = value; }
 328                 }
 329
 330 #if ONLY_1_1
 331                 [Bindable (true)]
 332 #endif
 333                 [DefaultValue (RepeatLayout.Table)]
 334                 [WebSysDescription ("")]
 335                 [WebCategory ("Layout")]
 336                 public virtual RepeatLayout RepeatLayout {
 337                         get {
 338                                 object o = ViewState ["RepeatLayout"];
 339                                 return (o == null) ? RepeatLayout.Table : (RepeatLayout) o;
 340                         }
 341                         set { ViewState ["RepeatLayout"] = value; }
 342                 }
 343
 344                 [Bindable (true)]
 345                 [DefaultValue (-1)]
 346                 [WebSysDescription ("")]
 347                 [WebCategory ("Layout")]
 348                 public virtual int SelectedIndex {
 349                         get {
 350                                 object o = ViewState ["SelectedIndex"];
 351                                 return (o == null) ? -1 : (int) o;
 352                         }
 353                         set {
 354                                 if (value < -1)
 355                                         throw new ArgumentOutOfRangeException ("SelectedIndex", "< -1");
 356                                 ViewState ["SelectedIndex"] = value;
 357                         }
 358                 }
 359
 360                 [Browsable (false)]
 361                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 362                 [WebSysDescription ("")]
 363                 [WebCategory ("Layout")]
 364                 public virtual DataListItem SelectedItem {
 365                         get {
 366                                 if (SelectedIndex < 0)
 367                                         return null;
 368                                 if (SelectedIndex >= Items.Count)
 369                                         throw new ArgumentOutOfRangeException ("SelectedItem", ">= Items.Count");
 370                                 return items [SelectedIndex];
 371                         }
 372                 }
 373
 374                 [DefaultValue (null)]
 375                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
 376                 [NotifyParentProperty (true)]
 377                 [PersistenceMode (PersistenceMode.InnerProperty)]
 378                 [WebSysDescription ("")]
 379                 [WebCategory ("Style")]
 380                 public virtual TableItemStyle SelectedItemStyle {
 381                         get {
 382                                 if (selectedItemStyle == null) {
 383                                         selectedItemStyle = new TableItemStyle ();
 384                                         if (IsTrackingViewState) {
 385                                                 selectedItemStyle.TrackViewState ();
 386                                         }
 387                                 }
 388                                 return selectedItemStyle;
 389                         }
 390                 }
 391
 392                 [Browsable (false)]
 393                 [DefaultValue (null)]
 394                 [TemplateContainer (typeof (DataListItem))]
 395                 [PersistenceMode (PersistenceMode.InnerProperty)]
 396                 [WebSysDescription ("")]
 397                 [WebCategory ("Style")]
 398                 public virtual ITemplate SelectedItemTemplate {
 399                         get { return selectedItemTemplate; }
 400                         set { selectedItemTemplate = value; }
 401                 }
 402
 403                 [DefaultValue (null)]
 404                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
 405                 [NotifyParentProperty (true)]
 406                 [PersistenceMode (PersistenceMode.InnerProperty)]
 407                 [WebSysDescription ("")]
 408                 [WebCategory ("Style")]
 409                 public virtual TableItemStyle SeparatorStyle {
 410                         get {
 411                                 if (separatorStyle == null) {
 412                                         separatorStyle = new TableItemStyle ();
 413                                         if (IsTrackingViewState) {
 414                                                 separatorStyle.TrackViewState ();
 415                                         }
 416                                 }
 417                                 return separatorStyle;
 418                         }
 419                 }
 420
 421                 [Browsable (false)]
 422                 [DefaultValue (null)]
 423                 [TemplateContainer (typeof (DataListItem))]
 424                 [PersistenceMode (PersistenceMode.InnerProperty)]
 425                 [WebSysDescription ("")]
 426                 [WebCategory ("Style")]
 427                 public virtual ITemplate SeparatorTemplate {
 428                         get { return separatorTemplate; }
 429                         set { separatorTemplate = value; }
 430                 }
 431
 432 #if ONLY_1_1
 433                 [Bindable (true)]
 434 #endif
 435                 [DefaultValue (true)]
 436                 [WebSysDescription ("")]
 437                 [WebCategory ("Appearance")]
 438                 public virtual bool ShowFooter {
 439                         get {
 440                                 object o = ViewState ["ShowFooter"];
 441                                 return (o == null) ? true : (bool) o;
 442                         }
 443                         set { ViewState ["ShowFooter"] = value; }
 444                 }
 445
 446 #if ONLY_1_1
 447                 [Bindable (true)]
 448 #endif
 449                 [DefaultValue (true)]
 450                 [WebSysDescription ("")]
 451                 [WebCategory ("Appearance")]
 452                 public virtual bool ShowHeader {
 453                         get {
 454                                 object o = ViewState ["ShowHeader"];
 455                                 return (o == null) ? true : (bool) o;
 456                         }
 457                         set { ViewState ["ShowHeader"] = value; }
 458                 }
 459
 460 #if NET_2_0
 461                 [MonoTODO ("incomplete")]
 462                 [Browsable (false)]
 463                 public object SelectedValue {
 464                         get {
 465                                 if (DataKeyField.Length == 0)
 466                                         throw new InvalidOperationException (Locale.GetText ("No DataKeyField present."));
 467
 468                                 if ((SelectedIndex >= 0) && (selectedIndex < DataKeys.Count)) {
 469                                         return DataKeys [selectedIndex];
 470                                 }
 471
 472                                 return null;
 473                         }
 474                 }
 475
 476                 protected override HtmlTextWriterTag TagKey {
 477                         get { return HtmlTextWriterTag.Table; }
 478                 }
 479 #endif
 480
 481                 private TableStyle TableStyle {
 482                         // this will throw an InvalidCasException just like we need
 483                         get { return (TableStyle) ControlStyle; }
 484                 }
 485
 486                 private ArrayList ItemList {
 487                         get {
 488                                 if (list == null)
 489                                         list = new ArrayList ();
 490                                 return list;
 491                         }
 492                 }
 493
 494                 void DoItem (int i, ListItemType t, object d, bool databind)
 495                 {
 496                         DataListItem itm = CreateItem (i, t);
 497                         if (databind)
 498                                 itm.DataItem = d;
 499                         DataListItemEventArgs e = new DataListItemEventArgs (itm);
 500                         InitializeItem (itm);
 501
 502                         //
 503                         // It is very important that this be called *before* data
 504                         // binding. Otherwise, we won't save our state in the viewstate.
 505                         //
 506                         Controls.Add (itm);
 507                         if (i != -1)
 508                                 ItemList.Add (itm);
 509
 510                         OnItemCreated (e);
 511
 512                         if (databind) {
 513                                 itm.DataBind ();
 514                                 OnItemDataBound (e);
 515                                 itm.DataItem = null;
 516                         }
 517                 }
 518
 519                 private void DoItemInLoop (int i, object d, bool databind, ListItemType type)
 520                 {
 521                         DoItem (i, type, d, databind);
 522                         if (SeparatorTemplate != null)
 523                                 DoItem (i - 1, ListItemType.Separator, null, databind);
 524
 525                 }
 526
 527                 protected override void CreateControlHierarchy (bool useDataSource)
 528                 {
 529                         Controls.Clear();
 530
 531                         IEnumerable ds = null;
 532                         ArrayList keys = null;
 533
 534                         if (useDataSource) {
 535                                 idx = 0;
 536                                 ds = DataSourceResolver.ResolveDataSource (DataSource, DataMember);
 537                                 keys = DataKeysArray;
 538                                 keys.Clear ();
 539                         } else {
 540                                 idx = (int) ViewState ["Items"];
 541                         }
 542
 543                         if ((ds == null) && (idx == 0))
 544                                 return;
 545
 546                         if (headerTemplate != null)
 547                                 DoItem (-1, ListItemType.Header, null, useDataSource);
 548
 549                         // items
 550                         int selected_index = SelectedIndex;
 551                         int edit_item_index = EditItemIndex;
 552                         ListItemType type;
 553                         if (ds != null) {
 554                                 string key = DataKeyField;
 555                                 foreach (object o in ds) {
 556                                         if (useDataSource && key != "")
 557                                                 keys.Add (DataBinder.GetPropertyValue (o, key));
 558                                         type = ListItemType.Item;
 559                                         if (idx == edit_item_index)
 560                                                 type = ListItemType.EditItem;
 561                                         else if (idx == selected_index)
 562                                                 type = ListItemType.SelectedItem;
 563                                         else if (idx % 2 != 0)
 564                                                 type = ListItemType.AlternatingItem;
 565
 566                                         DoItemInLoop (idx, o, useDataSource, type);
 567                                         idx++;
 568                                 }
 569                         } else {
 570                                 for (int i = 0; i < idx; i++) {
 571                                         type = ListItemType.Item;
 572                                         if (idx == edit_item_index)
 573                                                 type = ListItemType.EditItem;
 574                                         else if (idx == selected_index)
 575                                                 type = ListItemType.SelectedItem;
 576                                         else if (idx % 2 != 0)
 577                                                 type = ListItemType.AlternatingItem;
 578
 579                                         DoItemInLoop (i, null, useDataSource, type);
 580                                 }
 581                         }
 582
 583                         if (footerTemplate != null)
 584                                 DoItem (-1, ListItemType.Footer, null, useDataSource);
 585
 586                         ViewState ["Items"] = idx;
 587                 }
 588
 589                 protected override Style CreateControlStyle ()
 590                 {
 591 #if NET_2_0
 592                         // not kept (directly) in the DataList ViewState
 593                         return new TableStyle ();
 594 #else
 595                         return new TableStyle (ViewState);
 596 #endif
 597                 }
 598
 599                 protected virtual DataListItem CreateItem (int itemIndex, ListItemType itemType)
 600                 {
 601                         return new DataListItem (itemIndex, itemType);
 602                 }
 603
 604                 protected virtual void InitializeItem (DataListItem item)
 605                 {
 606                         ITemplate t = null;
 607
 608                         switch (item.ItemType) {
 609                         case ListItemType.Header:
 610                                 t = HeaderTemplate;
 611                                 break;
 612                         case ListItemType.Footer:
 613                                 t = FooterTemplate;
 614                                 break;
 615                         case ListItemType.Separator:
 616                                 t = SeparatorTemplate;
 617                                 break;
 618                         case ListItemType.Item:
 619                         case ListItemType.AlternatingItem:
 620                         case ListItemType.SelectedItem:
 621                         case ListItemType.EditItem:
 622                                 int index = item.ItemIndex;
 623                                 if (SelectedIndex == index)
 624                                         t = SelectedItemTemplate;
 625                                 else if (EditItemIndex == index)
 626                                         t = EditItemTemplate;
 627                                 else if (((index & 1) == 0) || (alternatingItemTemplate == null))
 628                                         t = ItemTemplate;
 629                                 else
 630                                         t = alternatingItemTemplate;
 631                                 break;
 632                         }
 633
 634                         if (t != null)
 635                                 t.InstantiateIn (item);
 636                 }
 637
 638                 protected override void LoadViewState (object savedState)
 639                 {
 640                         object[] state = (object[]) savedState;
 641                         base.LoadViewState (state [0]);
 642                         if (state [1] != null)
 643                                 ItemStyle.LoadViewState (state [1]);
 644                         if (state [2] != null)
 645                                 SelectedItemStyle.LoadViewState (state [2]);
 646                         if (state [3] != null)
 647                                 AlternatingItemStyle.LoadViewState (state [3]);
 648                         if (state [4] != null)
 649                                 EditItemStyle.LoadViewState (state [4]);
 650                         if (state [5] != null)
 651                                 SeparatorStyle.LoadViewState (state [5]);
 652                         if (state [6] != null)
 653                                 HeaderStyle.LoadViewState (state [6]);
 654                         if (state [7] != null)
 655                                 FooterStyle.LoadViewState (state [7]);
 656                 }
 657
 658                 protected override bool OnBubbleEvent (object source, EventArgs e)
 659                 {
 660                         DataListCommandEventArgs dlca = (e as DataListCommandEventArgs);
 661                         if (dlca == null)
 662                                 return false;
 663
 664                         string cn = dlca.CommandName;
 665                         CultureInfo inv = CultureInfo.InvariantCulture;
 666
 667                         OnItemCommand (dlca);
 668                         if (String.Compare (cn, CancelCommandName, true, inv) == 0) {
 669                                 OnCancelCommand (dlca);
 670                                 return true;
 671                         } else if (String.Compare (cn, DeleteCommandName, true, inv) == 0) {
 672                                 OnDeleteCommand (dlca);
 673                                 return true;
 674                         } else if (String.Compare (cn, EditCommandName, true, inv) == 0) {
 675                                 OnEditCommand (dlca);
 676                                 return true;
 677                         } else if (String.Compare (cn, SelectCommandName, true, inv) == 0) {
 678                                 OnSelectedIndexChanged (dlca);
 679                                 return true;
 680                         } else if (String.Compare (cn, UpdateCommandName, true, inv) == 0) {
 681                                 OnUpdateCommand (dlca);
 682                                 return true;
 683                         }
 684                         return false;
 685                 }
 686
 687                 protected virtual void OnCancelCommand (DataListCommandEventArgs e)
 688                 {
 689                         DataListCommandEventHandler cancelCommand = (DataListCommandEventHandler) Events [cancelCommandEvent];
 690                         if (cancelCommand != null)
 691                                 cancelCommand (this, e);
 692                 }
 693
 694                 protected virtual void OnDeleteCommand (DataListCommandEventArgs e)
 695                 {
 696                         DataListCommandEventHandler deleteCommand = (DataListCommandEventHandler) Events [deleteCommandEvent];
 697                         if (deleteCommand != null)
 698                                 deleteCommand (this, e);
 699                 }
 700
 701                 protected virtual void OnEditCommand (DataListCommandEventArgs e)
 702                 {
 703                         DataListCommandEventHandler editCommand = (DataListCommandEventHandler) Events [editCommandEvent];
 704                         if (editCommand != null)
 705                                 editCommand (this, e);
 706                 }
 707 #if NET_2_0
 708                 protected internal override void OnInit (EventArgs e)
 709                 {
 710                         // EditItemIndex and SelectedIndex now use the Control State (i.e not the View State)
 711                         Page.RegisterRequiresControlState (this);
 712                         base.OnInit (e);
 713                 }
 714 #endif
 715                 protected virtual void OnItemCommand (DataListCommandEventArgs e)
 716                 {
 717                         DataListCommandEventHandler itemCommand = (DataListCommandEventHandler) Events [itemCommandEvent];
 718                         if (itemCommand != null)
 719                                 itemCommand (this, e);
 720                 }
 721
 722                 protected virtual void OnItemCreated (DataListItemEventArgs e)
 723                 {
 724                         DataListItemEventHandler itemCreated = (DataListItemEventHandler) Events [itemCreatedEvent];
 725                         if (itemCreated != null)
 726                                 itemCreated (this, e);
 727                 }
 728
 729                 protected virtual void OnItemDataBound (DataListItemEventArgs e)
 730                 {
 731                         DataListItemEventHandler itemDataBound = (DataListItemEventHandler) Events [itemDataBoundEvent];
 732                         if (itemDataBound != null)
 733                                 itemDataBound (this, e);
 734                 }
 735
 736                 protected virtual void OnUpdateCommand (DataListCommandEventArgs e)
 737                 {
 738                         DataListCommandEventHandler updateCommand = (DataListCommandEventHandler) Events [updateCommandEvent];
 739                         if (updateCommand != null)
 740                                 updateCommand (this, e);
 741                 }
 742
 743                 void ApplyControlStyle (Control ctrl, Style style)
 744                 {
 745                         if (style == null || false == ctrl.HasControls ())
 746                                 return;
 747
 748                         foreach (Control c in ctrl.Controls) {
 749                                 if (c is Table) {
 750                                         Table tbl = (Table) c;
 751                                         foreach (TableRow row in tbl.Rows)
 752                                                 row.MergeStyle (style);
 753                                 }
 754                         }
 755                 }
 756
 757                 protected override void PrepareControlHierarchy ()
 758                 {
 759                         if (!HasControls () || Controls.Count == 0)
 760                                 return; // No one called CreateControlHierarchy() with DataSource != null
 761
 762                         Style alt = null;
 763                         foreach (DataListItem item in Controls) {
 764                                 switch (item.ItemType) {
 765                                 case ListItemType.Item:
 766                                         item.MergeStyle (itemStyle);
 767                                         ApplyControlStyle (item, itemStyle);
 768                                         break;
 769                                 case ListItemType.AlternatingItem:
 770                                         if (alt == null) {
 771                                                 if (alternatingItemStyle != null) {
 772                                                         alt = new Style ();
 773                                                         alt.CopyFrom (itemStyle);
 774                                                         alt.CopyFrom (alternatingItemStyle);
 775                                                 } else {
 776                                                         alt = itemStyle;
 777                                                 }
 778                                         }
 779
 780                                         item.MergeStyle (alt);
 781                                         ApplyControlStyle (item, alt);
 782                                         break;
 783                                 case ListItemType.EditItem:
 784                                         item.MergeStyle (editItemStyle);
 785                                         ApplyControlStyle (item, editItemStyle);
 786                                         break;
 787                                 case ListItemType.Footer:
 788                                         if (!ShowFooter) {
 789                                                 item.Visible = false;
 790                                                 break;
 791                                         }
 792                                         if (footerStyle != null) {
 793                                                 item.MergeStyle (footerStyle);
 794                                                 ApplyControlStyle (item, footerStyle);
 795                                         }
 796                                         break;
 797                                 case ListItemType.Header:
 798                                         if (!ShowHeader) {
 799                                                 item.Visible = false;
 800                                                 break;
 801                                         }
 802                                         if (headerStyle != null) {
 803                                                 item.MergeStyle (headerStyle);
 804                                                 ApplyControlStyle (item, headerStyle);
 805                                         }
 806                                         break;
 807                                 case ListItemType.SelectedItem:
 808                                         if (selectedItemStyle != null) {
 809                                                 item.MergeStyle (selectedItemStyle);
 810                                                 ApplyControlStyle (item, selectedItemStyle);
 811                                         } else {
 812                                                 item.MergeStyle (itemStyle);
 813                                                 ApplyControlStyle (item, itemStyle);
 814                                         }
 815                                         break;
 816                                 case ListItemType.Separator:
 817                                         ApplyControlStyle (item, separatorStyle);
 818                                         break;
 819                                 }
 820                         }
 821                 }
 822
 823 #if NET_2_0
 824                 protected internal
 825 #else
 826                 protected
 827 #endif
 828                 override void RenderContents (HtmlTextWriter writer)
 829                 {
 830                         RepeatInfo ri = new RepeatInfo ();
 831                         ri.RepeatColumns = RepeatColumns;
 832                         ri.RepeatDirection = RepeatDirection;
 833                         ri.RepeatLayout = RepeatLayout;
 834 /*
 835 // debugging stuff that I prefer to keep for a while
 836 Console.WriteLine ("RepeatColumns {0}", ri.RepeatColumns);
 837 Console.WriteLine ("RepeatDirection {0}", ri.RepeatDirection);
 838 Console.WriteLine ("RepeatLayout {0}", ri.RepeatLayout);
 839 Console.WriteLine ("OuterTableImplied {0}", ExtractTemplateRows);
 840 Console.WriteLine ("IRepeatInfoUser.HasFooter {0}", (ShowFooter && (footerTemplate != null)));
 841 Console.WriteLine ("IRepeatInfoUser.HasHeader {0}", (ShowHeader && (headerTemplate != null)));
 842 Console.WriteLine ("IRepeatInfoUser.HasSeparators {0}", (separatorTemplate != null));
 843 Console.WriteLine ("IRepeatInfoUser.RepeatedItemCount {0}", Items.Count);
 844 for (int i=0; i < Items.Count; i++) {
 845         DataListItem dli = Items [i];
 846         Console.WriteLine ("{0}: Index {1}, Type {2}", i, dli.ItemIndex, dli.ItemType);
 847 }
 848 */
 849                         bool extract = ExtractTemplateRows;
 850                         if (extract) {
 851                                 ri.OuterTableImplied = true;
 852                                 writer.AddAttribute (HtmlTextWriterAttribute.Id, ClientID);
 853                                 if (ControlStyleCreated) {
 854                                         ControlStyle.AddAttributesToRender (writer);
 855                                 }
 856                                 writer.RenderBeginTag (HtmlTextWriterTag.Table);
 857                                 ri.RenderRepeater (writer, this, ControlStyle, this);
 858                                 writer.RenderEndTag ();
 859                         } else {
 860                                 ri.RenderRepeater (writer, this, ControlStyle, this);
 861                         }
 862                 }
 863
 864                 protected override object SaveViewState ()
 865                 {
 866 #if NET_2_0
 867                         object[] state = new object [9];
 868                         // FIXME: what's new in slot #0 ?
 869                         state[8] = base.SaveViewState ();
 870 #else
 871                         object[] state = new object [8];
 872                         state[0] = base.SaveViewState ();
 873 #endif
 874                         if (itemStyle != null)
 875                                 state [1] = itemStyle.SaveViewState ();
 876                         if (selectedItemStyle != null)
 877                                 state [2] = selectedItemStyle.SaveViewState ();
 878                         if (alternatingItemStyle != null)
 879                                 state [3] = alternatingItemStyle.SaveViewState ();
 880                         if (editItemStyle != null)
 881                                 state [4] = editItemStyle.SaveViewState ();
 882                         if (separatorStyle != null)
 883                                 state [5] = separatorStyle.SaveViewState ();
 884                         if (headerStyle != null)
 885                                 state [6] = headerStyle.SaveViewState ();
 886                         if (footerStyle != null)
 887                                 state [7] = footerStyle.SaveViewState ();
 888                         return state;
 889                 }
 890
 891                 protected override void TrackViewState ()
 892                 {
 893                         base.TrackViewState ();
 894                         if (alternatingItemStyle != null)
 895                                 alternatingItemStyle.TrackViewState ();
 896                         if (editItemStyle != null)
 897                                 editItemStyle.TrackViewState ();
 898                         if (footerStyle != null)
 899                                 footerStyle.TrackViewState ();
 900                         if (headerStyle != null)
 901                                 headerStyle.TrackViewState ();
 902                         if (itemStyle != null)
 903                                 itemStyle.TrackViewState ();
 904                         if (selectedItemStyle != null)
 905                                 selectedItemStyle.TrackViewState ();
 906                         if (separatorStyle != null)
 907                                 separatorStyle.TrackViewState ();
 908                 }
 909
 910
 911                 [WebSysDescription ("")]
 912                 [WebCategory ("Action")]
 913                 public event DataListCommandEventHandler CancelCommand {
 914                         add { Events.AddHandler (cancelCommandEvent, value); }
 915                         remove { Events.RemoveHandler (cancelCommandEvent, value); }
 916                 }
 917
 918                 [WebSysDescription ("")]
 919                 [WebCategory ("Action")]
 920                 public event DataListCommandEventHandler DeleteCommand {
 921                         add { Events.AddHandler (deleteCommandEvent, value); }
 922                         remove { Events.RemoveHandler (deleteCommandEvent, value); }
 923                 }
 924
 925                 [WebSysDescription ("")]
 926                 [WebCategory ("Action")]
 927                 public event DataListCommandEventHandler EditCommand {
 928                         add { Events.AddHandler (editCommandEvent, value); }
 929                         remove { Events.RemoveHandler (editCommandEvent, value); }
 930                 }
 931
 932                 [WebSysDescription ("")]
 933                 [WebCategory ("Action")]
 934                 public event DataListCommandEventHandler ItemCommand {
 935                         add { Events.AddHandler (itemCommandEvent, value); }
 936                         remove { Events.RemoveHandler (itemCommandEvent, value); }
 937                 }
 938
 939                 [WebSysDescription ("")]
 940                 [WebCategory ("Action")]
 941                 public event DataListItemEventHandler ItemCreated {
 942                         add { Events.AddHandler (itemCreatedEvent, value); }
 943                         remove { Events.RemoveHandler (itemCreatedEvent, value); }
 944                 }
 945
 946                 [WebSysDescription ("")]
 947                 [WebCategory ("Action")]
 948                 public event DataListItemEventHandler ItemDataBound {
 949                         add { Events.AddHandler (itemDataBoundEvent, value); }
 950                         remove { Events.RemoveHandler (itemDataBoundEvent, value); }
 951                 }
 952
 953                 [WebSysDescription ("")]
 954                 [WebCategory ("Action")]
 955                 public event DataListCommandEventHandler UpdateCommand {
 956                         add { Events.AddHandler (updateCommandEvent, value); }
 957                         remove { Events.RemoveHandler (updateCommandEvent, value); }
 958                 }
 959
 960
 961                 // IRepeatInfoUser support
 962
 963                 bool IRepeatInfoUser.HasFooter {
 964                         get { return (ShowFooter && (footerTemplate != null)); }
 965                 }
 966
 967                 bool IRepeatInfoUser.HasHeader {
 968                         get { return (ShowHeader && (headerTemplate != null)); }
 969                 }
 970
 971                 bool IRepeatInfoUser.HasSeparators {
 972                         get { return (separatorTemplate != null); }
 973                 }
 974
 975                 // don't include header, footer and separators in the count
 976                 int IRepeatInfoUser.RepeatedItemCount {
 977                         get {
 978                                 if (idx == -1) {
 979                                         object o = ViewState ["Items"];
 980                                         idx = (o == null) ? 0 : (int) o;
 981                                 }
 982                                 return idx;
 983                         }
 984                 }
 985
 986                 Style IRepeatInfoUser.GetItemStyle (ListItemType itemType, int repeatIndex)
 987                 {
 988                         DataListItem item = null;
 989                         switch (itemType) {
 990                         case ListItemType.Header:
 991                         case ListItemType.Footer:
 992                                 if (repeatIndex >= 0 && (!HasControls () || repeatIndex >= Controls.Count))
 993                                         throw new ArgumentOutOfRangeException ();
 994
 995                                 item = FindFirstItem (itemType);
 996                                 break;
 997                         case ListItemType.Item:
 998                         case ListItemType.AlternatingItem:
 999                         case ListItemType.SelectedItem:
1000                         case ListItemType.EditItem:
1001                                 if (repeatIndex >= 0 && (!HasControls () || repeatIndex >= Controls.Count))
1002                                         throw new ArgumentOutOfRangeException ();
1003
1004                                 item = FindBestItem (repeatIndex);
1005                                 break;
1006                         case ListItemType.Separator:
1007                                 if (repeatIndex >= 0 && (!HasControls () || repeatIndex >= Controls.Count))
1008                                         throw new ArgumentOutOfRangeException ();
1009
1010                                 item = FindSpecificItem (itemType, repeatIndex);
1011                                 break;
1012                         default:
1013                                 item = null;
1014                                 break;
1015                         }
1016
1017                         if (item == null || item.ControlStyleCreated == false)
1018                                 return null;
1019
1020                         return item.ControlStyle;
1021                 }
1022
1023                 // Header and Footer don't have a "real" index (-1)
1024                 private DataListItem FindFirstItem (ListItemType itemType)
1025                 {
1026                         for (int i = 0; i < Controls.Count; i++) {
1027                                 DataListItem item = (Controls [i] as DataListItem);
1028                                 if ((item != null) && (item.ItemType == itemType))
1029                                         return item;
1030                         }
1031                         return null;
1032                 }
1033
1034                 // Both Type and Index must match (e.g. Separator)
1035                 private DataListItem FindSpecificItem (ListItemType itemType, int repeatIndex)
1036                 {
1037                         for (int i = 0; i < Controls.Count; i++) {
1038                                 DataListItem item = (Controls [i] as DataListItem);
1039                                 if ((item != null) && (item.ItemType == itemType) && (item.ItemIndex == repeatIndex))
1040                                         return item;
1041                         }
1042                         return null;
1043                 }
1044
1045                 // we get call for Item even for AlternatingItem :(
1046                 private DataListItem FindBestItem (int repeatIndex)
1047                 {
1048                         for (int i = 0; i < Controls.Count; i++) {
1049                                 DataListItem item = (Controls [i] as DataListItem);
1050                                 if ((item != null) && (item.ItemIndex == repeatIndex)) {
1051                                         switch (item.ItemType) {
1052                                         case ListItemType.Item:
1053                                         case ListItemType.AlternatingItem:
1054                                         case ListItemType.SelectedItem:
1055                                         case ListItemType.EditItem:
1056                                                 return item;
1057                                         default:
1058                                                 return null;
1059                                         }
1060                                 }
1061                         }
1062                         return null;
1063                 }
1064
1065                 void IRepeatInfoUser.RenderItem (ListItemType itemType, int repeatIndex, RepeatInfo repeatInfo, HtmlTextWriter writer)
1066                 {
1067                         // if possible take the easy way out...
1068                         if (!HasControls ())
1069                                 return;
1070
1071                         DataListItem item = null;
1072                         switch (itemType) {
1073                         case ListItemType.Header:
1074                         case ListItemType.Footer:
1075                                 item = FindFirstItem (itemType);
1076                                 break;
1077                         case ListItemType.Item:
1078                         case ListItemType.AlternatingItem:
1079                         case ListItemType.SelectedItem:
1080                         case ListItemType.EditItem:
1081                                 item = FindBestItem (repeatIndex);
1082                                 break;
1083                         case ListItemType.Separator:
1084                                 item = FindSpecificItem (itemType, repeatIndex);
1085                                 break;
1086                         }
1087
1088                         if (item != null) {
1089                                 bool extract = ExtractTemplateRows;
1090                                 bool table = (RepeatLayout == RepeatLayout.Table);
1091                                 if (!table || extract) {
1092                                         // sadly RepeatInfo doesn't support Style for RepeatLayout.Flow
1093                                         Style s = (this as IRepeatInfoUser).GetItemStyle (itemType, repeatIndex);
1094                                         if (s != null)
1095                                                 item.ControlStyle.CopyFrom (s);
1096                                 }
1097 //Console.WriteLine ("RenderItem #{0} type {1}", repeatIndex, itemType);
1098                                 item.RenderItem (writer, extract, table);
1099                         } else {
1100 //Console.WriteLine ("Couldn't find #{0} type {1} out of {2} items / {3} controls", repeatIndex, itemType, Items.Count, Controls.Count);
1101                         }
1102                 }
1103         }
1104 }