mcs/class/System.Web/System.Web.UI/TemplateControl.jvm.cs

   1 //
   2 // (C) 2005 Mainsoft Corporation (http://www.mainsoft.com)
   3 //
   4
   5 //
   6 // Permission is hereby granted, free of charge, to any person obtaining
   7 // a copy of this software and associated documentation files (the
   8 // "Software"), to deal in the Software without restriction, including
   9 // without limitation the rights to use, copy, modify, merge, publish,
  10 // distribute, sublicense, and/or sell copies of the Software, and to
  11 // permit persons to whom the Software is furnished to do so, subject to
  12 // the following conditions:
  13 //
  14 // The above copyright notice and this permission notice shall be
  15 // included in all copies or substantial portions of the Software.
  16 //
  17 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  18 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  20 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  21 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  22 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  23 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24 //
  25
  26 using System;
  27 using System.Collections;
  28 using System.ComponentModel;
  29 using System.Reflection;
  30 using System.Web;
  31 using System.IO;
  32 using System.Web.J2EE;
  33 using System.Xml;
  34 using vmw.common;
  35 using System.Web.Util;
  36 using System.Collections.Generic;
  37
  38 namespace System.Web.UI {
  39
  40         public abstract class TemplateControl : Control, INamingContainer
  41         {
  42                 static readonly object abortTransaction = new object ();
  43                 static readonly object commitTransaction = new object ();
  44                 static readonly object error = new object ();
  45                 static readonly string [] methodNames = { "Page_Init",
  46 #if NET_2_0
  47                                                  "Page_PreInit",
  48                                                  "Page_PreLoad",
  49                                                  "Page_LoadComplete",
  50                                                  "Page_PreRenderComplete",
  51                                                  "Page_SaveStateComplete",
  52                                                  "Page_InitComplete",
  53 #endif
  54                                                  "Page_Load",
  55                                                  "Page_DataBind",
  56                                                  "Page_PreRender",
  57                                                  "Page_Disposed",
  58                                                  "Page_Unload",
  59                                                  "Page_Error",
  60                                                  "Page_AbortTransaction",
  61                                                  "Page_CommitTransaction" };
  62
  63                 static readonly object [] EventKeys = {
  64                                                  Control.InitEvent,
  65 #if NET_2_0
  66                                                  Page.PreInitEvent,
  67                                                  Page.PreLoadEvent,
  68                                                  Page.LoadCompleteEvent,
  69                                                  Page.PreRenderCompleteEvent,
  70                                                  Page.SaveStateCompleteEvent,
  71                                                  Page.InitCompleteEvent,
  72 #endif
  73                                                 Control.LoadEvent,
  74                                                 Control.DataBindingEvent,
  75                                                 Control.PreRenderEvent,
  76                                                 Control.DisposedEvent,
  77                                                 Control.UnloadEvent,
  78                                                 error,
  79                                                 abortTransaction,
  80                                                 commitTransaction
  81                 };
  82
  83                 enum LifeCycleEvent
  84                 {
  85                         Init,
  86 #if NET_2_0
  87                         PreInit,
  88                         PreLoad,
  89                         LoadComplete,
  90                         PreRenderComplete,
  91                         SaveStateComplete,
  92                         InitComplete,
  93 #endif
  94                         Load,
  95                         DataBinding,
  96                         PreRender,
  97                         Disposed,
  98                         Unload,
  99                         Error,
 100                         AbortTransaction,
 101                         CommitTransaction
 102                 }
 103
 104                 const BindingFlags bflags = BindingFlags.Public |
 105                                                 BindingFlags.NonPublic |
 106                                                 BindingFlags.Instance;
 107
 108                 byte [] GetResourceBytes (Type type)
 109                 {
 110                         Hashtable table = (Hashtable) AppDomain.CurrentDomain.GetData ("TemplateControl.RES_BYTES");
 111                         if (table == null) {
 112                                 return null;
 113                         }
 114                         return (byte []) table [type];
 115                 }
 116                 void SetResourceBytes (Type type, byte [] bytes)
 117                 {
 118                         Hashtable table = (Hashtable) AppDomain.CurrentDomain.GetData ("TemplateControl.RES_BYTES");
 119                         if (table == null) {
 120                                 table = new Hashtable ();
 121                                 AppDomain.CurrentDomain.SetData ("TemplateControl.RES_BYTES", table);
 122                         }
 123                         table [type] = bytes;
 124                         return;
 125                 }
 126
 127                 Hashtable ResourceHash
 128                 {
 129                         get
 130                         {
 131                                 Hashtable table = (Hashtable) AppDomain.CurrentDomain.GetData ("TemplateControl.RES_STRING");
 132                                 if (table == null) {
 133                                         table = new Hashtable ();
 134                                         AppDomain.CurrentDomain.SetData ("TemplateControl.RES_STRING", table);
 135                                 }
 136                                 return table;
 137                         }
 138                         set
 139                         {
 140                                 AppDomain.CurrentDomain.SetData ("TemplateControl.RES_STRING", value);
 141                         }
 142                 }
 143
 144                 string CachedString (Type type, int offset, int size)
 145                 {
 146                         CacheKey key = new CacheKey (type, offset, size);
 147
 148                         string strObj = (string) ResourceHash [key];
 149                         if (strObj == null) {
 150                                 char [] tmp = System.Text.Encoding.UTF8.GetChars (GetResourceBytes (this.GetType ()), offset, size);
 151                                 strObj = new string (tmp);
 152
 153                                 Hashtable tmpResourceHash = (Hashtable) ResourceHash.Clone ();
 154                                 tmpResourceHash.Add (key, strObj);
 155                                 ResourceHash = tmpResourceHash;
 156                         }
 157                         return strObj;
 158                 }
 159                 public virtual string TemplateSourceDirectory_Private
 160                 {
 161                         get { return null; }
 162                 }
 163
 164                 #region Constructor
 165                 protected TemplateControl ()
 166                 {
 167                         Construct ();
 168                 }
 169
 170                 #endregion
 171
 172                 #region Properties
 173                 [EditorBrowsable (EditorBrowsableState.Never)]
 174                 protected virtual int AutoHandlers
 175                 {
 176                         get { return 0; }
 177                         set { }
 178                 }
 179
 180                 [EditorBrowsable (EditorBrowsableState.Never)]
 181                 protected virtual bool SupportAutoEvents
 182                 {
 183                         get { return true; }
 184                 }
 185
 186                 #endregion
 187
 188                 #region Methods
 189
 190                 protected virtual void Construct ()
 191                 {
 192                 }
 193
 194                 [MonoTODO]
 195                 protected LiteralControl CreateResourceBasedLiteralControl (int offset,
 196                                                                                         int size,
 197                                                                                         bool fAsciiOnly)
 198                 {
 199                         string str = CachedString (this.GetType (), offset, size);
 200                         return new LiteralControl (str);
 201                 }
 202
 203                 sealed class EventMethodMap
 204                 {
 205                         public EventMethodMap (LifeCycleEvent EventKeyIndex, MethodInfo Method, bool NoParameters)
 206                         {
 207                                 this.EventKeyIndex = EventKeyIndex;
 208                                 this.Method = Method;
 209                                 this.NoParameters = NoParameters;
 210                         }
 211
 212                         public readonly LifeCycleEvent EventKeyIndex;
 213                         public readonly MethodInfo Method;
 214                         public readonly bool NoParameters;
 215                 }
 216
 217                 // This hashtable cashes methods and events found in user code
 218                 const string eventMethodCacheKey = "eventMethodCacheKey";
 219                 static Hashtable EventMethodCache
 220                 {
 221                         get { return (Hashtable) AppDomain.CurrentDomain.GetData (eventMethodCacheKey); }
 222                         set { AppDomain.CurrentDomain.SetData (eventMethodCacheKey, value); }
 223                 }
 224
 225                 internal void WireupAutomaticEvents ()
 226                 {
 227                         Type cacheKey = this.GetType ();
 228                         Hashtable eventMethodCache = EventMethodCache;
 229                         ArrayList eventMethodList = eventMethodCache == null ? null : (ArrayList) eventMethodCache [cacheKey];
 230
 231                         if (eventMethodList == null) {
 232                                 eventMethodList = new ArrayList ();
 233
 234                                 if (!SupportAutoEvents || !AutoEventWireup)
 235                                         return;
 236
 237                                 Type thisType = typeof (TemplateControl);
 238                                 Type voidType = typeof (void);
 239                                 Type [] DefaultParams = new Type [] {
 240                                 typeof (object),
 241                                 typeof (EventArgs) };
 242
 243                 LifeCycleEvent[] _pageEvents = new LifeCycleEvent[] {
 244                     LifeCycleEvent.PreInit,
 245                     LifeCycleEvent.PreLoad,
 246                     LifeCycleEvent.LoadComplete,
 247                     LifeCycleEvent.PreRenderComplete,
 248                     LifeCycleEvent.SaveStateComplete,
 249                     LifeCycleEvent.InitComplete
 250                 };
 251                 List<LifeCycleEvent> pageEvents = new List<LifeCycleEvent>(_pageEvents);
 252
 253                 bool isPage = Page.GetType().IsAssignableFrom(GetType());
 254
 255                                 for (int i = 0; i < methodNames.Length; i++) {
 256
 257                     // Don't look for page-only events in non-page controls.
 258                     if (!isPage && pageEvents.Contains((LifeCycleEvent)i))
 259                         continue;
 260
 261                                         string methodName = methodNames [i];
 262                                         MethodInfo method;
 263                                         bool noParams = false;
 264                                         Type type = GetType ();
 265                                         do {
 266                                                 method = type.GetMethod (methodName, bflags, null, DefaultParams, null);
 267                                                 if (method != null) {
 268                                                         break;
 269                                                 }
 270
 271                                                 type = type.BaseType;
 272                                         }
 273                                         while (type != thisType);
 274
 275                                         if (method == null) {
 276                                                 type = GetType ();
 277                                                 do {
 278                                                         method = type.GetMethod (methodName, bflags, null, Type.EmptyTypes, null);
 279                                                         if (method != null) {
 280                                                                 noParams = true;
 281                                                                 break;
 282                                                         }
 283
 284                                                         type = type.BaseType;
 285                                                 }
 286                                                 while (type != thisType);
 287
 288                                                 if (method == null)
 289                                                         continue;
 290                                         }
 291                                         if (method.ReturnType != voidType)
 292                                                 continue;
 293
 294                                         eventMethodList.Add (new EventMethodMap ((LifeCycleEvent) i, method, noParams));
 295                                 }
 296                                 // We copy to not lock
 297
 298                                 Hashtable newEventMethodCache = eventMethodCache == null ? new Hashtable () : (Hashtable) eventMethodCache.Clone ();
 299                                 newEventMethodCache [cacheKey] = eventMethodList;
 300                                 EventMethodCache = newEventMethodCache;
 301                         }
 302
 303                         foreach (EventMethodMap eventMethod in eventMethodList) {
 304                                 EventHandler handler = eventMethod.NoParameters ?
 305                                         new NoParamsInvoker (this, eventMethod.Method).FakeDelegate :
 306                                         (EventHandler)Delegate.CreateDelegate (typeof (EventHandler), this, eventMethod.Method);
 307
 308                                 object eventKey = EventKeys [(int) eventMethod.EventKeyIndex];
 309
 310                                 Delegate existing = Events [eventKey];
 311                                 if (existing != null && handler.Equals(existing))
 312                                         continue;
 313
 314                                 switch (eventMethod.EventKeyIndex) {
 315                                 case LifeCycleEvent.Init:
 316                                         Init += handler;
 317                                         break;
 318 #if NET_2_0
 319                                 case LifeCycleEvent.PreInit:
 320                                         ((Page)this).PreInit += handler;
 321                                         break;
 322                                 case LifeCycleEvent.PreLoad:
 323                                         ((Page) this).PreLoad += handler;
 324                                         break;
 325                                 case LifeCycleEvent.LoadComplete:
 326                                         ((Page) this).LoadComplete += handler;
 327                                         break;
 328                                 case LifeCycleEvent.PreRenderComplete:
 329                                         ((Page) this).PreRenderComplete += handler;
 330                                         break;
 331                                 case LifeCycleEvent.SaveStateComplete:
 332                                         ((Page) this).SaveStateComplete += handler;
 333                                         break;
 334                                 case LifeCycleEvent.InitComplete:
 335                                         ((Page) this).InitComplete += handler;
 336                                         break;
 337 #endif
 338                                 case LifeCycleEvent.Load:
 339                                         Load += handler;
 340                                         break;
 341                                 case LifeCycleEvent.DataBinding:
 342                                         DataBinding += handler;
 343                                         break;
 344                                 case LifeCycleEvent.PreRender:
 345                                         PreRender += handler;
 346                                         break;
 347                                 case LifeCycleEvent.Disposed:
 348                                         Disposed += handler;
 349                                         break;
 350                                 case LifeCycleEvent.Unload:
 351                                         Unload += handler;
 352                                         break;
 353                                 case LifeCycleEvent.Error:
 354                                         Error += handler;
 355                                         break;
 356                                 case LifeCycleEvent.AbortTransaction:
 357                                         AbortTransaction += handler;
 358                                         break;
 359                                 case LifeCycleEvent.CommitTransaction:
 360                                         CommitTransaction += handler;
 361                                         break;
 362                                 }
 363                         }
 364                 }
 365
 366                 [EditorBrowsable (EditorBrowsableState.Never)]
 367                 protected virtual void FrameworkInitialize ()
 368                 {
 369                 }
 370
 371                 Type GetTypeFromControlPath (string virtualPath)
 372                 {
 373                         if (virtualPath == null)
 374                                 throw new ArgumentNullException ("virtualPath");
 375
 376                         string vpath = UrlUtils.Combine (TemplateSourceDirectory, virtualPath);
 377                         return PageMapper.GetObjectType (Context, vpath);
 378                 }
 379
 380                 public Control LoadControl (string virtualPath)
 381                 {
 382 #if NET_2_0
 383                         if (virtualPath == null)
 384                                 throw new ArgumentNullException ("virtualPath");
 385 #else
 386                         if (virtualPath == null)
 387                                 throw new HttpException ("virtualPath is null");
 388 #endif
 389                         Type type = GetTypeFromControlPath (virtualPath);
 390                         return LoadControl (type, null);
 391                 }
 392
 393                 public Control LoadControl (Type type, object [] parameters)
 394                 {
 395                         object [] attrs = type.GetCustomAttributes (typeof (PartialCachingAttribute), true);
 396                         if (attrs != null && attrs.Length == 1) {
 397                                 PartialCachingAttribute attr = (PartialCachingAttribute) attrs [0];
 398                                 PartialCachingControl ctrl = new PartialCachingControl (type, parameters);
 399                                 ctrl.VaryByParams = attr.VaryByParams;
 400                                 ctrl.VaryByControls = attr.VaryByControls;
 401                                 ctrl.VaryByCustom = attr.VaryByCustom;
 402                                 return ctrl;
 403                         }
 404
 405                         object control = Activator.CreateInstance (type, parameters);
 406                         if (control is UserControl)
 407                                 ((UserControl) control).InitializeAsUserControl (Page);
 408
 409                         return (Control) control;
 410                 }
 411
 412                 public ITemplate LoadTemplate (string virtualPath)
 413                 {
 414                         Type t = GetTypeFromControlPath (virtualPath);
 415                         return new SimpleTemplate (t);
 416                 }
 417
 418                 protected virtual void OnAbortTransaction (EventArgs e)
 419                 {
 420                         EventHandler eh = Events [abortTransaction] as EventHandler;
 421                         if (eh != null)
 422                                 eh (this, e);
 423                 }
 424
 425                 protected virtual void OnCommitTransaction (EventArgs e)
 426                 {
 427                         EventHandler eh = Events [commitTransaction] as EventHandler;
 428                         if (eh != null)
 429                                 eh (this, e);
 430                 }
 431
 432                 protected virtual void OnError (EventArgs e)
 433                 {
 434                         EventHandler eh = Events [error] as EventHandler;
 435                         if (eh != null)
 436                                 eh (this, e);
 437                 }
 438
 439                 [MonoNotSupported ("Not supported")]
 440                 public Control ParseControl (string content)
 441                 {
 442                         throw new NotSupportedException ();
 443                 }
 444
 445                 [MonoLimitation ("Always returns false")]
 446                 public virtual bool TestDeviceFilter (string filterName)
 447                 {
 448                         return false;
 449                 }
 450
 451                 [MonoTODO]
 452                 [EditorBrowsable (EditorBrowsableState.Never)]
 453                 public static object ReadStringResource (Type t)
 454                 {
 455                         return t;
 456                 }
 457 #if NET_2_0
 458                 [MonoTODO ("is this correct?")]
 459                 public Object ReadStringResource ()
 460                 {
 461                         return this.GetType ();
 462                 }
 463 #endif
 464                 [MonoTODO]
 465                 [EditorBrowsable (EditorBrowsableState.Never)]
 466                 protected void SetStringResourcePointer (object stringResourcePointer,
 467                                                          int maxResourceOffset)
 468                 {
 469                         if (GetResourceBytes (this.GetType ()) != null)
 470                                 return;
 471
 472                         java.lang.Class c = vmw.common.TypeUtils.ToClass (stringResourcePointer);
 473                         java.lang.ClassLoader contextClassLoader = c.getClassLoader ();
 474
 475                         //TODO:move this code to page mapper
 476                         string assemblyName = PageMapper.GetAssemblyResource (Context, VirtualPathUtility.ToAbsolute (AppRelativeVirtualPath));
 477                         if (assemblyName == null)
 478                                 throw new HttpException (404, "The requested resource (" + this.AppRelativeVirtualPath + ") is not available.");
 479
 480                         java.io.InputStream inputStream = contextClassLoader.getResourceAsStream (assemblyName);
 481
 482                         System.IO.Stream strim = null;
 483                         if (inputStream == null) {
 484                                 string descPath = String.Join ("/", new string [] { "assemblies", this.GetType ().Assembly.GetName ().Name, assemblyName });
 485                                 try {
 486                                         strim = new StreamReader (HttpContext.Current.Request.MapPath ("/" + descPath)).BaseStream;
 487                                 }
 488                                 catch (Exception ex) {
 489                                         throw new System.IO.IOException ("couldn't open resource file:" + assemblyName, ex);
 490                                 }
 491                                 if (strim == null)
 492                                         throw new System.IO.IOException ("couldn't open resource file:" + assemblyName);
 493                         }
 494
 495                         try {
 496                                 if (strim == null)
 497                                         strim = (System.IO.Stream) vmw.common.IOUtils.getStream (inputStream);
 498                                 int capacity = (int) strim.Length;
 499                                 byte [] resourceBytes = new byte [capacity];
 500                                 strim.Read (resourceBytes, 0, capacity);
 501                                 SetResourceBytes (this.GetType (), resourceBytes);
 502                         }
 503                         catch (Exception e) {
 504                                 throw new HttpException ("problem with dll.ghres file", e);
 505                         }
 506                         finally {
 507                                 if (strim != null)
 508                                         strim.Close ();
 509                                 if (inputStream != null)
 510                                         inputStream.close ();
 511                         }
 512                 }
 513
 514                 [MonoTODO]
 515                 [EditorBrowsable (EditorBrowsableState.Never)]
 516                 protected void WriteUTF8ResourceString (HtmlTextWriter output, int offset,
 517                                                         int size, bool fAsciiOnly)
 518                 {
 519                         string str = CachedString (this.GetType (), offset, size);
 520                         output.Write (str);
 521                 }
 522
 523                 #endregion
 524
 525                 #region Events
 526
 527                 [WebSysDescription ("Raised when the user aborts a transaction.")]
 528                 public event EventHandler AbortTransaction
 529                 {
 530                         add { Events.AddHandler (abortTransaction, value); }
 531                         remove { Events.RemoveHandler (abortTransaction, value); }
 532                 }
 533
 534                 [WebSysDescription ("Raised when the user initiates a transaction.")]
 535                 public event EventHandler CommitTransaction
 536                 {
 537                         add { Events.AddHandler (commitTransaction, value); }
 538                         remove { Events.RemoveHandler (commitTransaction, value); }
 539                 }
 540
 541                 [WebSysDescription ("Raised when an exception occurs that cannot be handled.")]
 542                 public event EventHandler Error
 543                 {
 544                         add { Events.AddHandler (error, value); }
 545                         remove { Events.RemoveHandler (error, value); }
 546                 }
 547
 548                 #endregion
 549
 550                 class SimpleTemplate : ITemplate
 551                 {
 552                         Type type;
 553
 554                         public SimpleTemplate (Type type)
 555                         {
 556                                 this.type = type;
 557                         }
 558
 559                         public void InstantiateIn (Control control)
 560                         {
 561                                 Control template = Activator.CreateInstance (type) as Control;
 562                                 template.SetBindingContainer (false);
 563                                 control.Controls.Add (template);
 564                         }
 565                 }
 566
 567                 sealed class CacheKey
 568                 {
 569                         readonly Type _type;
 570                         readonly int _offset;
 571                         readonly int _size;
 572
 573                         public CacheKey (Type type, int offset, int size)
 574                         {
 575                                 _type = type;
 576                                 _offset = offset;
 577                                 _size = size;
 578                         }
 579
 580                         public override int GetHashCode ()
 581                         {
 582                                 return _type.GetHashCode () ^ _offset ^ _size;
 583                         }
 584
 585                         public override bool Equals (object obj)
 586                         {
 587                                 if (obj == null || !(obj is CacheKey))
 588                                         return false;
 589
 590                                 CacheKey key = (CacheKey) obj;
 591                                 return key._type == _type && key._offset == _offset && key._size == _size;
 592                         }
 593                 }
 594
 595 #if NET_2_0
 596
 597                 string _appRelativeVirtualPath = null;
 598
 599                 public string AppRelativeVirtualPath
 600                 {
 601                         get { return _appRelativeVirtualPath; }
 602                         set
 603                         {
 604                                 if (value == null)
 605                                         throw new ArgumentNullException ("value");
 606                                 if (!UrlUtils.IsRooted (value) && !(value.Length > 0 && value [0] == '~'))
 607                                         throw new ArgumentException ("The path that is set is not rooted");
 608                                 _appRelativeVirtualPath = value;
 609
 610                                 int lastSlash = _appRelativeVirtualPath.LastIndexOf ('/');
 611                                 AppRelativeTemplateSourceDirectory = (lastSlash > 0) ? _appRelativeVirtualPath.Substring (0, lastSlash + 1) : "~/";
 612                         }
 613                 }
 614
 615                 internal override TemplateControl TemplateControlInternal {
 616                         get { return this; }
 617                 }
 618
 619                 protected internal object Eval (string expression)
 620                 {
 621                         return DataBinder.Eval (Page.GetDataItem (), expression);
 622                 }
 623
 624                 protected internal string Eval (string expression, string format)
 625                 {
 626                         return DataBinder.Eval (Page.GetDataItem (), expression, format);
 627                 }
 628
 629                 protected internal object XPath (string xpathexpression)
 630                 {
 631                         return XPathBinder.Eval (Page.GetDataItem (), xpathexpression);
 632                 }
 633
 634                 protected internal object XPath (string xpathexpression, IXmlNamespaceResolver resolver)
 635                 {
 636                         return XPathBinder.Eval (Page.GetDataItem (), xpathexpression, null, resolver);
 637                 }
 638
 639                 protected internal string XPath (string xpathexpression, string format)
 640                 {
 641                         return XPathBinder.Eval (Page.GetDataItem (), xpathexpression, format);
 642                 }
 643
 644                 protected internal string XPath (string xpathexpression, string format, IXmlNamespaceResolver resolver)
 645                 {
 646                         return XPathBinder.Eval (Page.GetDataItem (), xpathexpression, format, resolver);
 647                 }
 648
 649                 protected internal IEnumerable XPathSelect (string xpathexpression)
 650                 {
 651                         return XPathBinder.Select (Page.GetDataItem (), xpathexpression);
 652                 }
 653
 654                 protected internal IEnumerable XPathSelect (string xpathexpression, IXmlNamespaceResolver resolver)
 655                 {
 656                         return XPathBinder.Select (Page.GetDataItem (), xpathexpression, resolver);
 657                 }
 658
 659                 protected object GetGlobalResourceObject (string className, string resourceKey)
 660                 {
 661                         return HttpContext.GetGlobalResourceObject (className, resourceKey);
 662                 }
 663
 664                 protected object GetGlobalResourceObject (string className, string resourceKey, Type objType, string propName)
 665                 {
 666                         return ConvertResource (GetGlobalResourceObject (className, resourceKey), objType, propName);
 667                 }
 668
 669                 protected Object GetLocalResourceObject (string resourceKey)
 670                 {
 671                         return HttpContext.GetLocalResourceObject (Context.Request.Path, resourceKey);
 672                 }
 673
 674                 protected Object GetLocalResourceObject (string resourceKey, Type objType, string propName)
 675                 {
 676                         return ConvertResource (GetLocalResourceObject (resourceKey), objType, propName);
 677                 }
 678
 679                 static Object ConvertResource (Object resource, Type objType, string propName) {
 680                         if (resource == null)
 681                                 return resource;
 682
 683                         PropertyDescriptor pdesc = TypeDescriptor.GetProperties (objType) [propName];
 684                         if (pdesc == null)
 685                                 return resource;
 686
 687                         TypeConverter converter = pdesc.Converter;
 688                         if (converter == null)
 689                                 return resource;
 690
 691                         return resource is string ?
 692                                 converter.ConvertFromInvariantString ((string) resource) :
 693                                 converter.ConvertFrom (resource);
 694                 }
 695
 696 #endif
 697
 698         }
 699 }