mcs/class/System.Web/System.Web.UI/Control.cs

   1 //
   2 // System.Web.UI.Control.cs
   3 //
   4 // Authors:
   5 //   Bob Smith <bob@thestuff.net>
   6 //   Gonzalo Paniagua Javier (gonzalo@ximian.com
   7 //   Andreas Nahr (ClassDevelopment@A-SoftTech.com)
   8 //   Sanjay Gupta (gsanjay@novell.com)
   9 //
  10 // (C) Bob Smith
  11 // (c) 2002,2003 Ximian, Inc. (http://www.ximian.com)
  12 // (C) 2004 Novell, Inc. (http://www.novell.com)
  13 //
  14
  15 //
  16 // Permission is hereby granted, free of charge, to any person obtaining
  17 // a copy of this software and associated documentation files (the
  18 // "Software"), to deal in the Software without restriction, including
  19 // without limitation the rights to use, copy, modify, merge, publish,
  20 // distribute, sublicense, and/or sell copies of the Software, and to
  21 // permit persons to whom the Software is furnished to do so, subject to
  22 // the following conditions:
  23 //
  24 // The above copyright notice and this permission notice shall be
  25 // included in all copies or substantial portions of the Software.
  26 //
  27 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  28 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  29 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  30 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  31 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  32 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  33 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  34 //
  35
  36 // This will provide extra information when trace is enabled. Might be too verbose.
  37 #define MONO_TRACE
  38
  39 using System.Collections;
  40 using System.ComponentModel;
  41 using System.ComponentModel.Design;
  42 using System.ComponentModel.Design.Serialization;
  43 using System.Security.Permissions;
  44 using System.Web;
  45 using System.Web.Util;
  46 #if NET_2_0
  47 using System.Web.UI.Adapters;
  48 using System.IO;
  49 #endif
  50
  51 namespace System.Web.UI
  52 {
  53         // CAS
  54         [AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  55         [AspNetHostingPermission (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  56         // attributes
  57         [DefaultProperty ("ID"), DesignerCategory ("Code"), ToolboxItemFilter ("System.Web.UI", ToolboxItemFilterType.Require)]
  58         [ToolboxItem ("System.Web.UI.Design.WebControlToolboxItem, " + Consts.AssemblySystem_Design)]
  59         [Designer ("System.Web.UI.Design.ControlDesigner, " + Consts.AssemblySystem_Design, "System.ComponentModel.Design.IDesigner")]
  60 #if NET_2_0
  61         [DesignerSerializer ("Microsoft.VisualStudio.Web.WebForms.ControlCodeDomSerializer, " + Consts.AssemblyMicrosoft_VisualStudio_Web,
  62                                 "System.ComponentModel.Design.Serialization.CodeDomSerializer, " + Consts.AssemblySystem_Design)]
  63         [Bindable (true)]
  64         [Themeable (false)]
  65 #else
  66         [DesignerSerializer ("Microsoft.VSDesigner.WebForms.ControlCodeDomSerializer, " + Consts.AssemblyMicrosoft_VSDesigner,
  67                                 "System.ComponentModel.Design.Serialization.CodeDomSerializer, " + Consts.AssemblySystem_Design)]
  68 #endif
  69         public class Control : IComponent, IDisposable, IParserAccessor, IDataBindingsAccessor
  70 #if NET_2_0
  71         , IUrlResolutionService, IControlBuilderAccessor, IControlDesignerAccessor, IExpressionsAccessor
  72 #endif
  73         {
  74                 static readonly object DataBindingEvent = new object();
  75                 static readonly object DisposedEvent = new object();
  76                 static readonly object InitEvent = new object();
  77                 static readonly object LoadEvent = new object();
  78                 static readonly object PreRenderEvent = new object();
  79                 static readonly object UnloadEvent = new object();
  80                 static string[] defaultNameArray;
  81                 /* */
  82                 int event_mask;
  83                 const int databinding_mask = 1;
  84                 const int disposed_mask = 1 << 1;
  85                 const int init_mask = 1 << 2;
  86                 const int load_mask = 1 << 3;
  87                 const int prerender_mask = 1 << 4;
  88                 const int unload_mask = 1 << 5;
  89                 /* */
  90
  91                 string uniqueID;
  92                 string _userId;
  93                 ControlCollection _controls;
  94                 IDictionary _childViewStates;
  95                 Control _namingContainer;
  96                 Page _page;
  97                 Control _parent;
  98                 ISite _site;
  99                 HttpContext _context;
 100                 StateBag _viewState;
 101                 EventHandlerList _events;
 102                 RenderMethod _renderMethodDelegate;
 103                 int defaultNumberID;
 104
 105                 DataBindingCollection dataBindings;
 106                 Hashtable pendingVS; // may hold unused viewstate data from child controls
 107
 108
 109                 /*************/
 110                 int stateMask;
 111                 const int ENABLE_VIEWSTATE      = 1;
 112                 const int VISIBLE               = 1 << 1;
 113                 const int AUTOID                = 1 << 2;
 114                 const int CREATING_CONTROLS     = 1 << 3;
 115                 const int BINDING_CONTAINER     = 1 << 4;
 116                 const int AUTO_EVENT_WIREUP     = 1 << 5;
 117                 const int IS_NAMING_CONTAINER   = 1 << 6;
 118                 const int VISIBLE_CHANGED       = 1 << 7;
 119                 const int TRACK_VIEWSTATE       = 1 << 8;
 120                 const int CHILD_CONTROLS_CREATED = 1 << 9;
 121                 const int ID_SET                = 1 << 10;
 122                 const int INITED                = 1 << 11;
 123                 const int INITING               = 1 << 12;
 124                 const int VIEWSTATE_LOADED      = 1 << 13;
 125                 const int LOADED                = 1 << 14;
 126                 const int PRERENDERED           = 1 << 15;
 127 #if NET_2_0
 128                 const int ENABLE_THEMING        = 1 << 16;
 129 #endif
 130                 /*************/
 131
 132                 static Control ()
 133                 {
 134                         defaultNameArray = new string [100];
 135                         for (int i = 0 ; i < 100 ; i++)
 136                                 defaultNameArray [i] = "_ctl" + i;
 137                 }
 138
 139                 public Control()
 140                 {
 141                         stateMask = ENABLE_VIEWSTATE | VISIBLE | AUTOID | BINDING_CONTAINER | AUTO_EVENT_WIREUP;
 142                         if (this is INamingContainer)
 143                                 stateMask |= IS_NAMING_CONTAINER;
 144                 }
 145
 146 #if NET_2_0
 147                 [MonoTODO]
 148                 protected ControlAdapter Adapter
 149                 {
 150                         get {
 151                                 // for the time being, fool the
 152                                 // Control machinery into thinking we
 153                                 // don't have an Adapter.  This will
 154                                 // allow us to write all the rest of
 155                                 // the Adapter handling code without
 156                                 // having to worry about *having*
 157                                 // adapters.
 158                                 return null;
 159                         }
 160                 }
 161
 162                 [EditorBrowsable (EditorBrowsableState.Advanced)]
 163                 [Browsable (false)]
 164                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 165                 public string AppRelativeTemplateSourceDirectory
 166                 {
 167                         get {
 168                                 throw new NotImplementedException ();
 169                         }
 170                         [EditorBrowsable (EditorBrowsableState.Never)]
 171                         set {
 172                                 throw new NotImplementedException ();
 173                         }
 174                 }
 175
 176 #endif
 177
 178                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 179                 [EditorBrowsable (EditorBrowsableState.Never), Browsable (false)]
 180                 public Control BindingContainer {
 181                         get {
 182                                 Control container = NamingContainer;
 183                                 if ((container.stateMask & BINDING_CONTAINER) == 0)
 184                                         container = container.BindingContainer;
 185                                 return container;
 186                         }
 187                 }
 188
 189                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 190                 [Browsable (false)]
 191                 [WebSysDescription ("An Identification of the control that is rendered.")]
 192                 public virtual string ClientID {
 193                         get {
 194                                 string client = UniqueID;
 195
 196                                 if (client != null)
 197                                         client = client.Replace (':', '_');
 198
 199                                 return client;
 200                         }
 201                 }
 202
 203 #if NET_2_0
 204                 protected char ClientIDSeparator
 205                 {
 206                         get {
 207                                 throw new NotImplementedException ();
 208                         }
 209                 }
 210 #endif
 211
 212                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 213                 [Browsable (false)]
 214                 [WebSysDescription ("The child controls of this control.")]
 215                 public virtual ControlCollection Controls //DIT
 216                 {
 217                         get
 218                         {
 219                                 if (_controls == null) _controls = CreateControlCollection();
 220                                 return _controls;
 221                         }
 222                 }
 223
 224 #if NET_2_0
 225                 protected internal bool DesignMode
 226                 {
 227                         get {
 228                                 throw new NotImplementedException ();
 229                         }
 230                 }
 231 #endif
 232
 233                 [DefaultValue (true), WebCategory ("Behavior")]
 234                 [WebSysDescription ("An Identification of the control that is rendered.")]
 235 #if NET_2_0
 236                 [Themeable (false)]
 237 #endif
 238                 public virtual bool EnableViewState {
 239                         get { return ((stateMask & ENABLE_VIEWSTATE) != 0); }
 240                         set { SetMask (ENABLE_VIEWSTATE, value); }
 241                 }
 242
 243                 [MergableProperty (false), ParenthesizePropertyName (true)]
 244                 [WebSysDescription ("The name of the control that is rendered.")]
 245 #if NET_2_0
 246                 [Filterable (false), Themeable (false)]
 247 #endif
 248
 249                 public virtual string ID {
 250                         get {
 251                                 return (((stateMask & ID_SET) != 0) ? _userId : null);
 252                         }
 253
 254                         set {
 255                                 if (value == "")
 256                                         value = null;
 257
 258                                 stateMask |= ID_SET;
 259                                 _userId = value;
 260                                 NullifyUniqueID ();
 261                         }
 262                 }
 263
 264 #if NET_2_0
 265                 protected char IdSeparator
 266                 {
 267                         get {
 268                                 throw new NotImplementedException ();
 269                         }
 270                 }
 271
 272                 protected internal bool IsChildControlStateCleared
 273                 {
 274                         get {
 275                                 throw new NotImplementedException ();
 276                         }
 277                 }
 278
 279                 protected internal bool IsViewStateEnabled
 280                 {
 281                         get {
 282                                 throw new NotImplementedException ();
 283                         }
 284                 }
 285
 286                 protected bool LoadViewStateByID
 287                 {
 288                         get {
 289                                 throw new NotImplementedException ();
 290                         }
 291                 }
 292 #endif
 293
 294                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 295                 [Browsable (false)]
 296                 [WebSysDescription ("The container that this control is part of. The control's name has to be unique within the container.")]
 297                 public virtual Control NamingContainer {
 298                         get {
 299                                 if (_namingContainer == null && _parent != null) {
 300                                         if ((_parent.stateMask & IS_NAMING_CONTAINER) == 0)
 301                                                 _namingContainer = _parent.NamingContainer;
 302                                         else
 303                                                 _namingContainer = _parent;
 304                                 }
 305
 306                                 return _namingContainer;
 307                         }
 308                 }
 309
 310                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 311                 [Browsable (false)]
 312                 [WebSysDescription ("The webpage that this control resides on.")]
 313 #if NET_2_0
 314                 [Bindable (false)]
 315 #endif
 316                 public virtual Page Page //DIT
 317                 {
 318                         get
 319                         {
 320                                 if (_page == null && _parent != null) _page = _parent.Page;
 321                                 return _page;
 322                         }
 323                         set
 324                         {
 325                                 _page = value;
 326                         }
 327                 }
 328
 329                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 330                 [Browsable (false)]
 331                 [WebSysDescription ("The parent control of this control.")]
 332                 public virtual Control Parent //DIT
 333                 {
 334                         get
 335                         {
 336                                 return _parent;
 337                         }
 338                 }
 339
 340                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 341                 [EditorBrowsable (EditorBrowsableState.Advanced), Browsable (false)]
 342                 [WebSysDescription ("The site this control is part of.")]
 343                 public ISite Site //DIT
 344                 {
 345                         get
 346                         {
 347                                 return _site;
 348                         }
 349                         set
 350                         {
 351                                 _site = value;
 352                         }
 353                 }
 354
 355 #if NET_2_0
 356                 [Browsable (false)]
 357                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 358                 public TemplateControl TemplateControl
 359                 {
 360                         get {
 361                                 throw new NotImplementedException ();
 362                         }
 363                         [EditorBrowsable (EditorBrowsableState.Never)]
 364                         set {
 365                                 throw new NotImplementedException ();
 366                         }
 367                 }
 368 #endif
 369
 370                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 371                 [Browsable (false)]
 372                 [WebSysDescription ("A virtual directory containing the parent of the control.")]
 373                 public virtual string TemplateSourceDirectory {
 374                         get { return (_parent == null) ? String.Empty : _parent.TemplateSourceDirectory; }
 375                 }
 376
 377                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 378                 [Browsable (false)]
 379                 [WebSysDescription ("The unique ID of the control.")]
 380                 public virtual string UniqueID {
 381                         get {
 382                                 if (uniqueID != null)
 383                                         return uniqueID;
 384
 385                                 if (_namingContainer == null) {
 386                                         return _userId;
 387                                 }
 388
 389                                 if (_userId == null)
 390                                         _userId = _namingContainer.GetDefaultName ();
 391
 392                                 string prefix = _namingContainer.UniqueID;
 393                                 if (_namingContainer == _page || prefix == null) {
 394                                         uniqueID = _userId;
 395                                         return uniqueID;
 396                                 }
 397
 398                                 uniqueID = prefix + ":" + _userId;
 399                                 return uniqueID;
 400                         }
 401                 }
 402
 403                 void SetMask (int m, bool val)
 404                 {
 405                         if (val)
 406                                 stateMask |= m;
 407                         else
 408                                 stateMask &= ~m;
 409                 }
 410
 411                 [DefaultValue (true), Bindable (true), WebCategory ("Behavior")]
 412                 [WebSysDescription ("Visiblity state of the control.")]
 413                 public virtual bool Visible {
 414                         get {
 415                                 if ((stateMask & VISIBLE) == 0)
 416                                         return false;
 417
 418                                 if (_parent != null)
 419                                         return _parent.Visible;
 420
 421                                 return true;
 422                         }
 423
 424                         set {
 425                                 if ((value && (stateMask & VISIBLE) == 0) ||
 426                                     (!value && (stateMask & VISIBLE) != 0)) {
 427                                         if (IsTrackingViewState)
 428                                                 stateMask |= VISIBLE_CHANGED;
 429                                 }
 430
 431                                 SetMask (VISIBLE, value);
 432                         }
 433                 }
 434
 435                 protected bool ChildControlsCreated {
 436                         get { return ((stateMask & CHILD_CONTROLS_CREATED) != 0); }
 437                         set {
 438                                 if (value == false && (stateMask & CHILD_CONTROLS_CREATED) != 0)
 439                                         Controls.Clear();
 440
 441                                 SetMask (CHILD_CONTROLS_CREATED, value);
 442                         }
 443                 }
 444
 445                 [Browsable (false)]
 446                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 447                 protected virtual HttpContext Context //DIT
 448                 {
 449                         get
 450                         {
 451                                 HttpContext context;
 452                                 if (_context != null)
 453                                         return _context;
 454                                 if (_parent == null)
 455                                         return HttpContext.Current;
 456                                 context = _parent.Context;
 457                                 if (context != null)
 458                                         return context;
 459                                 return HttpContext.Current;
 460                         }
 461                 }
 462                 protected EventHandlerList Events //DIT
 463                 {
 464                         get
 465                         {
 466                                 if (_events == null)
 467                                 {
 468                                         _events = new EventHandlerList();
 469                                 }
 470                                 return _events;
 471                         }
 472                 }
 473                 protected bool HasChildViewState //DIT
 474                 {
 475                         get
 476                         {
 477                                 if (_childViewStates == null) return false;
 478                                 return true;
 479                         }
 480                 }
 481
 482                 protected bool IsTrackingViewState {
 483                         get { return ((stateMask & TRACK_VIEWSTATE) != 0); }
 484                 }
 485
 486                 [Browsable (false)]
 487                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 488                 [WebSysDescription ("ViewState")]
 489                 protected virtual StateBag ViewState
 490                 {
 491                         get
 492                         {
 493                                 if(_viewState == null)
 494                                         _viewState = new StateBag (ViewStateIgnoresCase);
 495
 496                                 if (IsTrackingViewState)
 497                                         _viewState.TrackViewState ();
 498
 499                                 return _viewState;
 500                         }
 501                 }
 502
 503                 [Browsable (false)]
 504                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 505                 protected virtual bool ViewStateIgnoresCase
 506                 {
 507                         get {
 508                                 return false;
 509                         }
 510                 }
 511
 512                 internal bool AutoEventWireup {
 513                         get { return (stateMask & AUTO_EVENT_WIREUP) != 0; }
 514                         set { SetMask (AUTO_EVENT_WIREUP, value); }
 515                 }
 516
 517                 internal void SetBindingContainer (bool isBC)
 518                 {
 519                         SetMask (BINDING_CONTAINER, isBC);
 520                 }
 521
 522                 internal void ResetChildNames ()
 523                 {
 524                         defaultNumberID = 0;
 525                 }
 526
 527                 string GetDefaultName ()
 528                 {
 529                         string defaultName;
 530                         if (defaultNumberID > 99) {
 531                                 defaultName = "_ctl" + defaultNumberID++;
 532                         } else {
 533                                 defaultName = defaultNameArray [defaultNumberID++];
 534                         }
 535                         return defaultName;
 536                 }
 537
 538                 void NullifyUniqueID ()
 539                 {
 540                         uniqueID = null;
 541                         if (!HasControls ())
 542                                 return;
 543
 544                         foreach (Control c in Controls)
 545                                 c.NullifyUniqueID ();
 546                 }
 547
 548                 protected internal virtual void AddedControl (Control control, int index)
 549                 {
 550                         /* Ensure the control don't have more than 1 parent */
 551                         if (control._parent != null)
 552                                 control._parent.Controls.Remove (control);
 553
 554                         control._parent = this;
 555                         control._page = _page;
 556                         Control nc = ((stateMask & IS_NAMING_CONTAINER) != 0) ? this : NamingContainer;
 557
 558                         if (nc != null) {
 559                                 control._namingContainer = nc;
 560                                 if (control.AutoID == true && control._userId == null)
 561                                         control._userId =  nc.GetDefaultName ();
 562                         }
 563
 564                         if ((stateMask & (INITING | INITED)) != 0)
 565                                 control.InitRecursive (nc);
 566
 567                         if ((stateMask & (VIEWSTATE_LOADED | LOADED)) != 0) {
 568                                 if (pendingVS != null) {
 569                                         object vs = pendingVS [index];
 570                                         if (vs != null) {
 571                                                 pendingVS.Remove (index);
 572                                                 if (pendingVS.Count == 0)
 573                                                         pendingVS = null;
 574
 575                                                 control.LoadViewStateRecursive (vs);
 576                                         }
 577                                 }
 578                         }
 579
 580                         if ((stateMask & LOADED) != 0)
 581                                 control.LoadRecursive ();
 582
 583                         if ((stateMask & PRERENDERED) != 0)
 584                                 control.PreRenderRecursiveInternal ();
 585                 }
 586
 587                 protected virtual void AddParsedSubObject(object obj) //DIT
 588                 {
 589                         Control c = obj as Control;
 590                         if (c != null) Controls.Add(c);
 591                 }
 592
 593 #if NET_2_0
 594                 [EditorBrowsable (EditorBrowsableState.Advanced)]
 595                 public virtual void ApplyStyleSheetSkin (Page page)
 596                 {
 597                         throw new NotImplementedException ();
 598                 }
 599 #endif
 600
 601                 protected void BuildProfileTree(string parentId, bool calcViewState)
 602                 {
 603                         //TODO
 604                 }
 605
 606 #if NET_2_0
 607                 protected void ClearChildControlState ()
 608                 {
 609                         throw new NotImplementedException ();
 610                 }
 611
 612                 protected void ClearChildState ()
 613                 {
 614                         throw new NotImplementedException ();
 615                 }
 616 #endif
 617
 618                 protected void ClearChildViewState ()
 619                 {
 620                         pendingVS = null;
 621                 }
 622
 623 #if NET_2_0
 624                 protected internal
 625 #else
 626                 protected
 627 #endif
 628                 virtual void CreateChildControls() {} //DIT
 629
 630                 protected virtual ControlCollection CreateControlCollection() //DIT
 631                 {
 632                         return new ControlCollection(this);
 633                 }
 634
 635                 protected virtual void EnsureChildControls ()
 636                 {
 637                         if (ChildControlsCreated == false && (stateMask & CREATING_CONTROLS) == 0) {
 638                                 stateMask |= CREATING_CONTROLS;
 639 #if NET_2_0
 640                                 if (Adapter != null)
 641                                         Adapter.CreateChildControls ();
 642                                 else
 643 #endif
 644                                         CreateChildControls();
 645                                 ChildControlsCreated = true;
 646                                 stateMask &= ~CREATING_CONTROLS;
 647                         }
 648                 }
 649
 650 #if NET_2_0
 651                 protected void EnsureID ()
 652                 {
 653                         throw new NotImplementedException ();
 654                 }
 655
 656                 protected bool HasEvents ()
 657                 {
 658                         throw new NotImplementedException ();
 659                 }
 660
 661 #endif
 662
 663
 664                 protected bool IsLiteralContent()
 665                 {
 666                         if (HasControls () && Controls.Count == 1 && (Controls [0] is LiteralControl))
 667                                 return true;
 668
 669                         return false;
 670                 }
 671
 672                 [WebSysDescription ("")]
 673                 public virtual Control FindControl (string id)
 674                 {
 675                         return FindControl (id, 0);
 676                 }
 677
 678                 Control LookForControlByName (string id)
 679                 {
 680                         if (!HasControls ())
 681                                 return null;
 682
 683                         Control result = null;
 684                         foreach (Control c in Controls) {
 685                                 if (String.Compare (id, c._userId, true) == 0) {
 686                                         if (result != null && result != c) {
 687                                                 throw new HttpException ("1 Found more than one control with ID '" + id + "'");
 688                                         }
 689
 690                                         result = c;
 691                                         continue;
 692                                 }
 693
 694                                 if ((c.stateMask & IS_NAMING_CONTAINER) == 0 && c.HasControls ()) {
 695                                         Control child = c.LookForControlByName (id);
 696                                         if (child != null) {
 697                                                 if (result != null && result != child)
 698                                                         throw new HttpException ("2 Found more than one control with ID '" + id + "'");
 699
 700                                                 result = child;
 701                                         }
 702                                 }
 703                         }
 704
 705                         return result;
 706                 }
 707
 708                 protected virtual Control FindControl (string id, int pathOffset)
 709                 {
 710                         EnsureChildControls ();
 711                         Control namingContainer = null;
 712                         if ((stateMask & IS_NAMING_CONTAINER) == 0) {
 713                                 namingContainer = NamingContainer;
 714                                 if (namingContainer == null)
 715                                         return null;
 716
 717                                 return namingContainer.FindControl (id, pathOffset);
 718                         }
 719
 720                         if (!HasControls ())
 721                                 return null;
 722
 723                         int colon = id.IndexOf (':', pathOffset);
 724                         if (colon == -1)
 725                                 return LookForControlByName (id.Substring (pathOffset));
 726
 727                         string idfound = id.Substring (pathOffset, colon - pathOffset);
 728                         namingContainer = LookForControlByName (idfound);
 729                         if (namingContainer == null)
 730                                 return null;
 731
 732                         return namingContainer.FindControl (id, colon + 1);
 733                 }
 734
 735                 protected virtual void LoadViewState(object savedState)
 736                 {
 737                         if (savedState != null) {
 738                                 ViewState.LoadViewState (savedState);
 739                                 object o = ViewState ["Visible"];
 740                                 if (o != null) {
 741                                         SetMask (VISIBLE, (bool) o);
 742                                         stateMask |= VISIBLE_CHANGED;
 743                                 }
 744                         }
 745                 }
 746
 747                 [MonoTODO("Secure?")]
 748                 protected string MapPathSecure(string virtualPath)
 749                 {
 750                         string combined = UrlUtils.Combine (TemplateSourceDirectory, virtualPath);
 751                         return Context.Request.MapPath (combined);
 752                 }
 753
 754                 protected virtual bool OnBubbleEvent(object source, EventArgs args) //DIT
 755                 {
 756 #if MONO_TRACE
 757                         TraceContext trace = (Context != null && Context.Trace.IsEnabled) ? Context.Trace : null;
 758                         string type_name = null;
 759                         if (trace != null) {
 760                                 type_name = GetType ().Name;
 761                                 trace.Write ("control", String.Format ("OnBubbleEvent {0} {1}", _userId, type_name));
 762                         }
 763 #endif
 764                         return false;
 765                 }
 766
 767                 protected virtual void OnDataBinding (EventArgs e)
 768                 {
 769                         if ((event_mask & databinding_mask) != 0) {
 770                                 EventHandler eh = (EventHandler)(_events [DataBindingEvent]);
 771                                 if (eh != null) {
 772 #if MONO_TRACE
 773                                         TraceContext trace = (Context != null && Context.Trace.IsEnabled) ? Context.Trace : null;
 774                                         string type_name = null;
 775                                         if (trace != null) {
 776                                                 type_name = GetType ().Name;
 777                                                 trace.Write ("control", String.Format ("OnDataBinding {0} {1}", _userId, type_name));
 778                                         }
 779 #endif
 780                                         eh (this, e);
 781                                 }
 782                         }
 783                 }
 784
 785 #if NET_2_0
 786                 protected internal
 787 #else
 788                 protected
 789 #endif
 790                 virtual void OnInit (EventArgs e)
 791                 {
 792                         if ((event_mask & init_mask) != 0) {
 793                                 EventHandler eh = (EventHandler)(_events [InitEvent]);
 794                                 if (eh != null) {
 795 #if MONO_TRACE
 796                                         TraceContext trace = (Context != null && Context.Trace.IsEnabled) ? Context.Trace : null;
 797                                         string type_name = null;
 798                                         if (trace != null) {
 799                                                 type_name = GetType ().Name;
 800                                                 trace.Write ("control", String.Format ("OnInit {0} {1}", _userId, type_name));
 801                                         }
 802 #endif
 803                                         eh (this, e);
 804                                 }
 805                         }
 806                 }
 807
 808 #if NET_2_0
 809                 protected internal
 810 #else
 811                 protected
 812 #endif
 813                 virtual void OnLoad (EventArgs e)
 814                 {
 815                         if ((event_mask & load_mask) != 0) {
 816                                 EventHandler eh = (EventHandler)(_events [LoadEvent]);
 817                                 if (eh != null) {
 818 #if MONO_TRACE
 819                                         TraceContext trace = (Context != null && Context.Trace.IsEnabled) ? Context.Trace : null;
 820                                         string type_name = null;
 821                                         if (trace != null) {
 822                                                 type_name = GetType ().Name;
 823                                                 trace.Write ("control", String.Format ("OnLoad {0} {1}", _userId, type_name));
 824                                         }
 825 #endif
 826                                         eh (this, e);
 827                                 }
 828                         }
 829                 }
 830
 831 #if NET_2_0
 832                 protected internal
 833 #else
 834                 protected
 835 #endif
 836                 virtual void OnPreRender (EventArgs e)
 837                 {
 838                         if ((event_mask & prerender_mask) != 0) {
 839                                 EventHandler eh = (EventHandler)(_events [PreRenderEvent]);
 840                                 if (eh != null) {
 841 #if MONO_TRACE
 842                                         TraceContext trace = (Context != null && Context.Trace.IsEnabled) ? Context.Trace : null;
 843                                         string type_name = null;
 844                                         if (trace != null) {
 845                                                 type_name = GetType ().Name;
 846                                                 trace.Write ("control", String.Format ("OnPreRender {0} {1}", _userId, type_name));
 847                                         }
 848 #endif
 849                                         eh (this, e);
 850                                 }
 851                         }
 852                 }
 853
 854 #if NET_2_0
 855                 protected internal
 856 #else
 857                 protected
 858 #endif
 859                 virtual void OnUnload(EventArgs e)
 860                 {
 861                         if ((event_mask & unload_mask) != 0) {
 862                                 EventHandler eh = (EventHandler)(_events [UnloadEvent]);
 863                                 if (eh != null) {
 864 #if MONO_TRACE
 865                                         TraceContext trace = (Context != null && Context.Trace.IsEnabled) ? Context.Trace : null;
 866                                         string type_name = null;
 867                                         if (trace != null) {
 868                                                 type_name = GetType ().Name;
 869                                                 trace.Write ("control", String.Format ("OnUnload {0} {1}", _userId, type_name));
 870                                         }
 871 #endif
 872                                         eh (this, e);
 873                                 }
 874                         }
 875                 }
 876
 877 #if NET_2_0
 878                 protected internal Stream OpenFile (string path)
 879                 {
 880                         throw new NotImplementedException ();
 881                 }
 882 #endif
 883
 884                 protected void RaiseBubbleEvent(object source, EventArgs args)
 885                 {
 886                         Control c = Parent;
 887                         while (c != null) {
 888 #if MONO_TRACE
 889                                 TraceContext trace = (Context != null && Context.Trace.IsEnabled) ? Context.Trace : null;
 890                                 string type_name = null;
 891                                 if (trace != null) {
 892                                         type_name = GetType ().Name;
 893                                         trace.Write ("control", String.Format ("RaiseBubbleEvent {0} {1}", _userId, type_name));
 894                                 }
 895 #endif
 896                                 if (c.OnBubbleEvent (source, args)) {
 897 #if MONO_TRACE
 898                                         if (trace != null)
 899                                                 trace.Write ("control", String.Format ("End RaiseBubbleEvent (false) {0} {1}", _userId, type_name));
 900 #endif
 901                                         break;
 902                                 }
 903 #if MONO_TRACE
 904                                 if (trace != null)
 905                                         trace.Write ("control", String.Format ("End RaiseBubbleEvent (true) {0} {1}", _userId, type_name));
 906 #endif
 907                                 c = c.Parent;
 908                         }
 909                 }
 910
 911 #if NET_2_0
 912                 protected internal
 913 #else
 914                 protected
 915 #endif
 916                 virtual void Render(HtmlTextWriter writer) //DIT
 917                 {
 918                         RenderChildren(writer);
 919                 }
 920
 921 #if NET_2_0
 922                 protected internal
 923 #else
 924                 protected
 925 #endif
 926                 virtual void RenderChildren (HtmlTextWriter writer) //DIT
 927                 {
 928                         if (_renderMethodDelegate != null) {
 929                                 _renderMethodDelegate (writer, this);
 930                         } else if (HasControls ()) {
 931                                 int len = Controls.Count;
 932                                 for (int i = 0; i < len; i++) {
 933                                         Control c = Controls [i];
 934 #if NET_2_0
 935                                         if (c.Adapter != null)
 936                                                 c.RenderControl (writer, c.Adapter);
 937                                         else
 938 #endif
 939                                                 c.RenderControl (writer);
 940                                 }
 941                         }
 942                 }
 943
 944 #if NET_2_0
 945                 protected virtual ControlAdapter ResolveAdapter ()
 946                 {
 947                         throw new NotImplementedException ();
 948                 }
 949 #endif
 950
 951                 protected virtual object SaveViewState ()
 952                 {
 953                         if ((stateMask & VISIBLE_CHANGED) != 0) {
 954                                 ViewState ["Visible"] = (stateMask & VISIBLE) != 0;
 955                         } else if (_viewState == null) {
 956                                 return null;
 957                         }
 958
 959                         return _viewState.SaveViewState ();
 960                 }
 961
 962                 protected virtual void TrackViewState()
 963                 {
 964                         if (_viewState != null)
 965                                 _viewState.TrackViewState ();
 966
 967                         stateMask |= TRACK_VIEWSTATE;
 968                 }
 969
 970                 public virtual void Dispose ()
 971                 {
 972                         if ((event_mask & disposed_mask) != 0) {
 973                                 EventHandler eh = (EventHandler)(_events [DisposedEvent]);
 974                                 if (eh != null) eh (this, EventArgs.Empty);
 975                         }
 976                 }
 977
 978                 [WebCategory ("FIXME")]
 979                 [WebSysDescription ("Raised when the contols databound properties are evaluated.")]
 980                 public event EventHandler DataBinding {
 981                         add {
 982                                 event_mask |= databinding_mask;
 983                                 Events.AddHandler (DataBindingEvent, value);
 984                         }
 985                         remove { Events.RemoveHandler (DataBindingEvent, value); }
 986                 }
 987
 988                 [WebSysDescription ("Raised when the contol is disposed.")]
 989                 public event EventHandler Disposed {
 990                         add {
 991                                 event_mask |= disposed_mask;
 992                                 Events.AddHandler (DisposedEvent, value);
 993                         }
 994                         remove { Events.RemoveHandler (DisposedEvent, value); }
 995                 }
 996
 997                 [WebSysDescription ("Raised when the page containing the control is initialized.")]
 998                 public event EventHandler Init {
 999                         add {
1000                                 event_mask |= init_mask;
1001                                 Events.AddHandler (InitEvent, value);
1002                         }
1003                         remove { Events.RemoveHandler (InitEvent, value); }
1004                 }
1005
1006                 [WebSysDescription ("Raised after the page containing the control has been loaded.")]
1007                 public event EventHandler Load {
1008                         add {
1009                                 event_mask |= load_mask;
1010                                 Events.AddHandler (LoadEvent, value);
1011                         }
1012                         remove { Events.RemoveHandler (LoadEvent, value); }
1013                 }
1014
1015                 [WebSysDescription ("Raised before the page containing the control is rendered.")]
1016                 public event EventHandler PreRender {
1017                         add {
1018                                 event_mask |= prerender_mask;
1019                                 Events.AddHandler (PreRenderEvent, value);
1020                         }
1021                         remove { Events.RemoveHandler (PreRenderEvent, value); }
1022                 }
1023
1024                 [WebSysDescription ("Raised when the page containing the control is unloaded.")]
1025                 public event EventHandler Unload {
1026                         add {
1027                                 event_mask |= unload_mask;
1028                                 Events.AddHandler (UnloadEvent, value);
1029                         }
1030                         remove { Events.RemoveHandler (UnloadEvent, value); }
1031                 }
1032
1033                 public virtual void DataBind() //DIT
1034                 {
1035                         #if NET_2_0
1036                         DataBind (true);
1037                         #else
1038                         OnDataBinding (EventArgs.Empty);
1039                         DataBindChildren();
1040                         #endif
1041                 }
1042
1043                 #if NET_2_0
1044                 protected virtual
1045                 #endif
1046
1047                 void DataBindChildren ()
1048                 {
1049                         if (!HasControls ())
1050                                 return;
1051
1052                         int len = Controls.Count;
1053                         for (int i = 0; i < len; i++) {
1054                                 Control c = Controls [i];
1055                                 c.DataBind ();
1056                         }
1057                 }
1058
1059
1060                 public virtual bool HasControls ()
1061                 {
1062                     return (_controls != null && _controls.Count > 0);
1063                 }
1064
1065 #if NET_2_0
1066                 public virtual
1067 #else
1068                 public
1069 #endif
1070                 void RenderControl (HtmlTextWriter writer)
1071                 {
1072                     if ((stateMask & VISIBLE) != 0)
1073                             Render(writer);
1074                 }
1075
1076 #if NET_2_0
1077                 protected void RenderControl (HtmlTextWriter writer,
1078                                               ControlAdapter adapter)
1079                 {
1080                         if ((stateMask & VISIBLE) != 0) {
1081                                 adapter.BeginRender (writer);
1082                                 adapter.Render (writer);
1083                                 adapter.EndRender (writer);
1084                         }
1085                 }
1086 #endif
1087
1088                 public string ResolveUrl (string relativeUrl)
1089                 {
1090                         if (relativeUrl == null)
1091                                 throw new ArgumentNullException ("relativeUrl");
1092
1093                         if (relativeUrl == "")
1094                                 return "";
1095
1096                         if (relativeUrl [0] == '#')
1097                                 return relativeUrl;
1098
1099                         string ts = TemplateSourceDirectory;
1100                         if (ts == "" || !UrlUtils.IsRelativeUrl (relativeUrl))
1101                                 return relativeUrl;
1102
1103                         HttpResponse resp = Context.Response;
1104                         return resp.ApplyAppPathModifier (UrlUtils.Combine (ts, relativeUrl));
1105                 }
1106
1107                 internal bool HasRenderMethodDelegate () {
1108                         return _renderMethodDelegate != null;
1109                 }
1110
1111                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1112                 public void SetRenderMethodDelegate(RenderMethod renderMethod) //DIT
1113                 {
1114                         _renderMethodDelegate = renderMethod;
1115                 }
1116
1117                 internal void LoadRecursive()
1118                 {
1119 #if MONO_TRACE
1120                         TraceContext trace = (Context != null && Context.Trace.IsEnabled) ? Context.Trace : null;
1121                         string type_name = null;
1122                         if (trace != null) {
1123                                 type_name = GetType ().Name;
1124                                 trace.Write ("control", String.Format ("LoadRecursive {0} {1}", _userId, type_name));
1125                         }
1126 #endif
1127 #if NET_2_0
1128                         if (Adapter != null)
1129                                 Adapter.OnLoad (EventArgs.Empty);
1130                         else
1131 #endif
1132                                 OnLoad (EventArgs.Empty);
1133                         if (HasControls ()) {
1134                                 int len = Controls.Count;
1135                                 for (int i=0;i<len;i++)
1136                                 {
1137                                         Control c = Controls[i];
1138                                         c.LoadRecursive ();
1139                                 }
1140                         }
1141
1142 #if MONO_TRACE
1143                         if (trace != null)
1144                                 trace.Write ("control", String.Format ("End LoadRecursive {0} {1}", _userId, type_name));
1145 #endif
1146                         stateMask |= LOADED;
1147                 }
1148
1149                 internal void UnloadRecursive(Boolean dispose)
1150                 {
1151 #if MONO_TRACE
1152                         TraceContext trace = (Context != null && Context.Trace.IsEnabled) ? Context.Trace : null;
1153                         string type_name = null;
1154                         if (trace != null) {
1155                                 type_name = GetType ().Name;
1156                                 trace.Write ("control", String.Format ("UnloadRecursive {0} {1}", _userId, type_name));
1157                         }
1158 #endif
1159                         if (HasControls ()) {
1160                                 int len = Controls.Count;
1161                                 for (int i=0;i<len;i++)
1162                                 {
1163                                         Control c = Controls[i];
1164                                         c.UnloadRecursive (dispose);
1165                                 }
1166                         }
1167
1168 #if MONO_TRACE
1169                         if (trace != null)
1170                                 trace.Write ("control", String.Format ("End UnloadRecursive {0} {1}", _userId, type_name));
1171 #endif
1172 #if NET_2_0
1173                         if (Adapter != null)
1174                                 Adapter.OnUnload (EventArgs.Empty);
1175                         else
1176 #endif
1177                                 OnUnload (EventArgs.Empty);
1178                         if (dispose)
1179                                 Dispose();
1180                 }
1181
1182                 internal void PreRenderRecursiveInternal()
1183                 {
1184                         if ((stateMask & VISIBLE) != 0) {
1185                                 EnsureChildControls ();
1186 #if MONO_TRACE
1187                                 TraceContext trace = (Context != null && Context.Trace.IsEnabled) ? Context.Trace : null;
1188                                 string type_name = null;
1189                                 if (trace != null) {
1190                                         type_name = GetType ().Name;
1191                                         trace.Write ("control", String.Format ("PreRenderRecursive {0} {1}", _userId, type_name));
1192                                 }
1193 #endif
1194 #if NET_2_0
1195                                 if (Adapter != null)
1196                                         Adapter.OnPreRender (EventArgs.Empty);
1197                                 else
1198 #endif
1199                                         OnPreRender (EventArgs.Empty);
1200                                 if (!HasControls ())
1201                                         return;
1202
1203                                 int len = Controls.Count;
1204                                 for (int i=0;i<len;i++)
1205                                 {
1206                                         Control c = Controls[i];
1207                                         c.PreRenderRecursiveInternal ();
1208                                 }
1209 #if MONO_TRACE
1210                                 if (trace != null)
1211                                         trace.Write ("control", String.Format ("End PreRenderRecursive {0} {1}", _userId, type_name));
1212 #endif
1213                         }
1214                         stateMask |= PRERENDERED;
1215                 }
1216
1217                 internal void InitRecursive(Control namingContainer)
1218                 {
1219 #if MONO_TRACE
1220                         TraceContext trace = (Context != null && Context.Trace.IsEnabled) ? Context.Trace : null;
1221                         string type_name = null;
1222                         if (trace != null) {
1223                                 type_name = GetType ().Name;
1224                                 trace.Write ("control", String.Format ("InitRecursive {0} {1}", _userId, type_name));
1225                         }
1226 #endif
1227
1228                         if (HasControls ()) {
1229                                 if ((stateMask & IS_NAMING_CONTAINER) != 0)
1230                                         namingContainer = this;
1231
1232                                 if (namingContainer != null &&
1233                                     namingContainer._userId == null &&
1234                                     namingContainer.AutoID)
1235                                         namingContainer._userId = namingContainer.GetDefaultName () + "b";
1236
1237                                 int len = Controls.Count;
1238                                 for (int i=0;i<len;i++)
1239                                 {
1240                                         Control c = Controls[i];
1241                                         c._page = Page;
1242                                         c._namingContainer = namingContainer;
1243                                         if (namingContainer != null && c._userId == null && c.AutoID)
1244                                                 c._userId = namingContainer.GetDefaultName () + "c";
1245                                         c.InitRecursive (namingContainer);
1246                                 }
1247                         }
1248
1249                         stateMask |= INITING;
1250 #if NET_2_0
1251                         if (Adapter != null)
1252                                 Adapter.OnInit (EventArgs.Empty);
1253                         else
1254 #endif
1255                                 OnInit (EventArgs.Empty);
1256 #if MONO_TRACE
1257                         if (trace != null)
1258                                 trace.Write ("control", String.Format ("End InitRecursive {0} {1}", _userId, type_name));
1259 #endif
1260                         TrackViewState ();
1261                         stateMask |= INITED;
1262                         stateMask &= ~INITING;
1263                 }
1264
1265                 internal object SaveViewStateRecursive ()
1266                 {
1267                         if (!EnableViewState)
1268                                 return null;
1269
1270 #if MONO_TRACE
1271                         TraceContext trace = (Context != null && Context.Trace.IsEnabled) ? Context.Trace : null;
1272                         string type_name = null;
1273                         if (trace != null) {
1274                                 type_name = GetType ().Name;
1275                                 trace.Write ("control", String.Format ("SaveViewStateRecursive {0} {1}", _userId, type_name));
1276                         }
1277 #endif
1278
1279                         ArrayList controlList = null;
1280                         ArrayList controlStates = null;
1281
1282                         int idx = -1;
1283                         if (HasControls ())
1284                         {
1285                                 int len = Controls.Count;
1286                                 for (int i=0;i<len;i++)
1287                                 {
1288                                         Control ctrl = Controls[i];
1289                                         object ctrlState = ctrl.SaveViewStateRecursive ();
1290                                         idx++;
1291                                         if (ctrlState == null)
1292                                                 continue;
1293
1294                                         if (controlList == null)
1295                                         {
1296                                                 controlList = new ArrayList ();
1297                                                 controlStates = new ArrayList ();
1298                                         }
1299
1300                                         controlList.Add (idx);
1301                                         controlStates.Add (ctrlState);
1302                                 }
1303                         }
1304
1305                         object thisState = SaveViewState ();
1306                         if (thisState == null && controlList == null && controlStates == null) {
1307 #if MONO_TRACE
1308                                 if (trace != null) {
1309                                         trace.Write ("control", String.Format ("End SaveViewStateRecursive {0} {1} saved nothing", _userId, type_name));
1310                                         trace.SaveViewState (this, null);
1311                                 }
1312 #endif
1313                                 return null;
1314                         }
1315
1316 #if MONO_TRACE
1317                         if (trace != null) {
1318                                 trace.Write ("control", String.Format ("End SaveViewStateRecursive {0} {1} saved a Triplet", _userId, type_name));
1319                                 trace.SaveViewState (this, thisState);
1320                         }
1321 #endif
1322                         return new Triplet (thisState, controlList, controlStates);
1323                 }
1324
1325                 internal void LoadViewStateRecursive (object savedState)
1326                 {
1327                         if (!EnableViewState || savedState == null)
1328                                 return;
1329
1330 #if MONO_TRACE
1331                         TraceContext trace = (Context != null && Context.Trace.IsEnabled) ? Context.Trace : null;
1332                         string type_name = null;
1333                         if (trace != null) {
1334                                 type_name = GetType ().Name;
1335                                 trace.Write ("control", String.Format ("LoadViewStateRecursive {0} {1}", _userId, type_name));
1336                         }
1337 #endif
1338                         Triplet savedInfo = (Triplet) savedState;
1339                         LoadViewState (savedInfo.First);
1340
1341                         ArrayList controlList = savedInfo.Second as ArrayList;
1342                         if (controlList == null)
1343                                 return;
1344                         ArrayList controlStates = savedInfo.Third as ArrayList;
1345                         int nControls = controlList.Count;
1346                         for (int i = 0; i < nControls; i++) {
1347                                 int k = (int) controlList [i];
1348                                 if (k < Controls.Count && controlStates != null) {
1349                                         Control c = Controls [k];
1350                                         c.LoadViewStateRecursive (controlStates [i]);
1351                                 } else {
1352                                         if (pendingVS == null)
1353                                                 pendingVS = new Hashtable ();
1354
1355                                         pendingVS [k] = controlStates [i];
1356                                 }
1357                         }
1358
1359 #if MONO_TRACE
1360                         if (trace != null)
1361                                 trace.Write ("control", String.Format ("End LoadViewStateRecursive {0} {1}", _userId, type_name));
1362 #endif
1363                         stateMask |= VIEWSTATE_LOADED;
1364                 }
1365
1366                 internal bool AutoID
1367                 {
1368                         get { return (stateMask & AUTOID) != 0; }
1369                         set {
1370                                 if (value == false && (stateMask & IS_NAMING_CONTAINER) != 0)
1371                                         return;
1372
1373                                 SetMask (AUTOID, value);
1374                         }
1375                 }
1376
1377                 internal void PreventAutoID()
1378                 {
1379                         AutoID = false;
1380                 }
1381
1382                 protected internal virtual void RemovedControl (Control control)
1383                 {
1384                         control.UnloadRecursive (false);
1385                         control._parent = null;
1386                         control._page = null;
1387                         control._namingContainer = null;
1388                 }
1389
1390
1391 #if NET_2_0
1392
1393                 string skinId = string.Empty;
1394
1395                 [Browsable (false)]
1396                 [Themeable (false)]
1397                 [DefaultValue (true)]
1398                 public virtual bool EnableTheming
1399                 {
1400                         get { return (stateMask & ENABLE_THEMING) != 0; }
1401                         set { SetMask (ENABLE_THEMING, value); }
1402                 }
1403
1404                 [Browsable (false)]
1405                 [DefaultValue ("")]
1406                 [Filterable (false)]
1407                 public virtual string SkinID
1408                 {
1409                         get { return skinId; }
1410                         set { skinId = value; }
1411                 }
1412
1413                 public string ResolveClientUrl (string url)
1414                 {
1415                         throw new NotImplementedException ();
1416                 }
1417
1418                 ControlBuilder IControlBuilderAccessor.ControlBuilder {
1419                         get {throw new NotImplementedException (); }
1420                 }
1421
1422                 IDictionary IControlDesignerAccessor.GetDesignModeState ()
1423                 {
1424                         throw new NotImplementedException ();
1425                 }
1426
1427                 void IControlDesignerAccessor.SetDesignModeState (IDictionary designData)
1428                 {
1429                         SetDesignModeState (designData);
1430                 }
1431
1432                 void IControlDesignerAccessor.SetOwnerControl (Control control)
1433                 {
1434                         throw new NotImplementedException ();
1435                 }
1436
1437                 IDictionary IControlDesignerAccessor.UserData {
1438                         get { throw new NotImplementedException (); }
1439                 }
1440
1441                 ExpressionBindingCollection expressionBindings;
1442
1443                 ExpressionBindingCollection IExpressionsAccessor.Expressions {
1444                         get {
1445                                 if (expressionBindings == null)
1446                                         expressionBindings = new ExpressionBindingCollection ();
1447                                 return expressionBindings;
1448                         }
1449                 }
1450
1451                 bool IExpressionsAccessor.HasExpressions {
1452                         get {
1453                                 return (expressionBindings != null && expressionBindings.Count > 0);
1454                         }
1455                 }
1456
1457                 [MonoTODO]
1458                 public virtual void Focus()
1459                 {
1460                         throw new NotImplementedException();
1461                 }
1462
1463                 protected internal virtual void LoadControlState (object state)
1464                 {
1465                 }
1466
1467                 protected internal virtual object SaveControlState ()
1468                 {
1469                         return null;
1470                 }
1471
1472                 protected virtual void DataBind (bool raiseOnDataBinding)
1473                 {
1474                         bool foundDataItem = false;
1475
1476                         if ((stateMask & IS_NAMING_CONTAINER) != 0 && Page != null) {
1477                                 object o = DataBinder.GetDataItem (this, out foundDataItem);
1478                                 if (foundDataItem)
1479                                         Page.PushDataItemContext (o);
1480                         }
1481
1482                         try {
1483
1484                                 if (raiseOnDataBinding)
1485                                         OnDataBinding (EventArgs.Empty);
1486                                 DataBindChildren();
1487
1488                         } finally {
1489                                 if (foundDataItem)
1490                                         Page.PopDataItemContext ();
1491                         }
1492                 }
1493
1494                 protected virtual IDictionary GetDesignModeState ()
1495                 {
1496                         throw new NotImplementedException ();
1497                 }
1498
1499                 protected virtual void SetDesignModeState (IDictionary data)
1500                 {
1501                         throw new NotImplementedException ();
1502                 }
1503 #endif
1504                 void IParserAccessor.AddParsedSubObject (object obj) {
1505                         this.AddParsedSubObject (obj);
1506                 }
1507
1508                 DataBindingCollection IDataBindingsAccessor.DataBindings {
1509                         get {
1510                                 if (dataBindings == null) {
1511                                         dataBindings = new DataBindingCollection ();
1512                                 }
1513                                 return dataBindings;
1514                         }
1515                 }
1516
1517                 bool IDataBindingsAccessor.HasDataBindings {
1518                         get {
1519                                 if (dataBindings != null && dataBindings.Count > 0) {
1520                                         return true;
1521                                 }
1522                                 return false;
1523                         }
1524                 }
1525         }
1526 }