mcs/class/System.Web/System.Web.Compilation/TemplateControlCompiler.cs

   1 //
   2 // System.Web.Compilation.TemplateControlCompiler
   3 //
   4 // Authors:
   5 //      Gonzalo Paniagua Javier (gonzalo@ximian.com)
   6 //
   7 // (C) 2003 Ximian, Inc (http://www.ximian.com)
   8 //
   9
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30 using System;
  31 using System.CodeDom;
  32 using System.Collections;
  33 using System.ComponentModel;
  34 using System.Drawing;
  35 using System.Globalization;
  36 using System.Reflection;
  37 using System.Text;
  38 using System.Web;
  39 using System.Web.UI;
  40 using System.Web.UI.WebControls;
  41 using System.Web.Util;
  42 using System.ComponentModel.Design.Serialization;
  43 #if NET_2_0
  44 using System.Configuration;
  45 using System.Collections.Specialized;
  46 using System.Collections.Generic;
  47 using System.Text.RegularExpressions;
  48 using System.Web.Configuration;
  49 #endif
  50
  51 namespace System.Web.Compilation
  52 {
  53         class TemplateControlCompiler : BaseCompiler
  54         {
  55                 static BindingFlags noCaseFlags = BindingFlags.Public | BindingFlags.NonPublic |
  56                                                   BindingFlags.Instance | BindingFlags.IgnoreCase;
  57
  58                 TemplateControlParser parser;
  59                 int dataBoundAtts;
  60                 ILocation currentLocation;
  61
  62                 static TypeConverter colorConverter;
  63
  64                 internal static CodeVariableReferenceExpression ctrlVar = new CodeVariableReferenceExpression ("__ctrl");
  65
  66 #if NET_2_0
  67                 static Regex bindRegex = new Regex (@"Bind\s*\(""(.*?)""\)\s*%>", RegexOptions.Compiled | RegexOptions.IgnoreCase);
  68                 static Regex bindRegexInValue = new Regex (@"Bind\s*\(""(.*?)""\)", RegexOptions.Compiled | RegexOptions.IgnoreCase);
  69 #endif
  70
  71                 public TemplateControlCompiler (TemplateControlParser parser)
  72                         : base (parser)
  73                 {
  74                         this.parser = parser;
  75                 }
  76
  77                 protected void EnsureID (ControlBuilder builder)
  78                 {
  79                         if (builder.ID == null || builder.ID.Trim () == "")
  80                                 builder.ID = builder.GetNextID (null);
  81                 }
  82
  83                 void CreateField (ControlBuilder builder, bool check)
  84                 {
  85                         if (builder == null || builder.ID == null || builder.ControlType == null)
  86                                 return;
  87 #if NET_2_0
  88                         if (partialNameOverride [builder.ID] != null)
  89                                 return;
  90 #endif
  91                         MemberAttributes ma = MemberAttributes.Family;
  92                         currentLocation = builder.location;
  93                         if (check && CheckBaseFieldOrProperty (builder.ID, builder.ControlType, ref ma))
  94                                 return; // The field or property already exists in a base class and is accesible.
  95
  96                         CodeMemberField field;
  97                         field = new CodeMemberField (builder.ControlType.FullName, builder.ID);
  98                         field.Attributes = ma;
  99 #if NET_2_0
 100                         if (partialClass != null)
 101                                 partialClass.Members.Add (field);
 102                         else
 103 #endif
 104                                 mainClass.Members.Add (field);
 105                 }
 106
 107                 bool CheckBaseFieldOrProperty (string id, Type type, ref MemberAttributes ma)
 108                 {
 109                         FieldInfo fld = parser.BaseType.GetField (id, noCaseFlags);
 110
 111                         Type other = null;
 112                         if (fld == null || fld.IsPrivate) {
 113                                 PropertyInfo prop = parser.BaseType.GetProperty (id, noCaseFlags);
 114                                 if (prop != null) {
 115                                         MethodInfo setm = prop.GetSetMethod (true);
 116                                         if (setm != null)
 117                                                 other = prop.PropertyType;
 118                                 }
 119                         } else {
 120                                 other = fld.FieldType;
 121                         }
 122
 123                         if (other == null)
 124                                 return false;
 125
 126                         if (!other.IsAssignableFrom (type)) {
 127 #if NET_2_0
 128                                 ma |= MemberAttributes.New;
 129                                 return false;
 130 #else
 131                                 string msg = String.Format ("The base class includes the field '{0}', but its " +
 132                                                             "type '{1}' is not compatible with {2}",
 133                                                             id, other, type);
 134                                 throw new ParseException (currentLocation, msg);
 135 #endif
 136                         }
 137
 138                         return true;
 139                 }
 140
 141                 void AddParsedSubObjectStmt (ControlBuilder builder, CodeExpression expr)
 142                 {
 143                         if (!builder.haveParserVariable) {
 144                                 CodeVariableDeclarationStatement p = new CodeVariableDeclarationStatement();
 145                                 p.Name = "__parser";
 146                                 p.Type = new CodeTypeReference (typeof (IParserAccessor));
 147                                 p.InitExpression = new CodeCastExpression (typeof (IParserAccessor), ctrlVar);
 148                                 builder.methodStatements.Add (p);
 149                                 builder.haveParserVariable = true;
 150                         }
 151
 152                         CodeVariableReferenceExpression var = new CodeVariableReferenceExpression ("__parser");
 153                         CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression (var, "AddParsedSubObject");
 154                         invoke.Parameters.Add (expr);
 155                         builder.methodStatements.Add (invoke);
 156                 }
 157
 158                 void InitMethod (ControlBuilder builder, bool isTemplate, bool childrenAsProperties)
 159                 {
 160                         string tailname = ((builder is RootBuilder) ? "Tree" : ("_" + builder.ID));
 161                         CodeMemberMethod method = new CodeMemberMethod ();
 162                         builder.method = method;
 163                         builder.methodStatements = method.Statements;
 164
 165                         method.Name = "__BuildControl" + tailname;
 166                         method.Attributes = MemberAttributes.Private | MemberAttributes.Final;
 167                         Type type = builder.ControlType;
 168
 169                         /* in the case this is the __BuildControlTree
 170                          * method, allow subclasses to insert control
 171                          * specific code. */
 172                         if (builder is RootBuilder) {
 173 #if NET_2_0
 174                                 SetCustomAttributes (method);
 175 #endif
 176                                 AddStatementsToInitMethod (method);
 177                         }
 178
 179                         if (builder.HasAspCode) {
 180                                 CodeMemberMethod renderMethod = new CodeMemberMethod ();
 181                                 builder.renderMethod = renderMethod;
 182                                 renderMethod.Name = "__Render" + tailname;
 183                                 renderMethod.Attributes = MemberAttributes.Private | MemberAttributes.Final;
 184                                 CodeParameterDeclarationExpression arg1 = new CodeParameterDeclarationExpression ();
 185                                 arg1.Type = new CodeTypeReference (typeof (HtmlTextWriter));
 186                                 arg1.Name = "__output";
 187                                 CodeParameterDeclarationExpression arg2 = new CodeParameterDeclarationExpression ();
 188                                 arg2.Type = new CodeTypeReference (typeof (Control));
 189                                 arg2.Name = "parameterContainer";
 190                                 renderMethod.Parameters.Add (arg1);
 191                                 renderMethod.Parameters.Add (arg2);
 192                                 mainClass.Members.Add (renderMethod);
 193                         }
 194
 195                         if (childrenAsProperties || builder.ControlType == null) {
 196                                 string typeString;
 197                                 if (builder is RootBuilder)
 198                                         typeString = parser.ClassName;
 199                                 else {
 200                                         if (builder.ControlType != null && builder.isProperty &&
 201                                             !typeof (ITemplate).IsAssignableFrom (builder.ControlType))
 202                                                 typeString = builder.ControlType.FullName;
 203                                         else
 204                                                 typeString = "System.Web.UI.Control";
 205                                 }
 206
 207                                 method.Parameters.Add (new CodeParameterDeclarationExpression (typeString, "__ctrl"));
 208                         } else {
 209
 210                                 if (typeof (Control).IsAssignableFrom (type))
 211                                         method.ReturnType = new CodeTypeReference (typeof (Control));
 212
 213                                 // _ctrl = new $controlType ($parameters);
 214                                 //
 215                                 CodeObjectCreateExpression newExpr = new CodeObjectCreateExpression (type);
 216
 217                                 object [] atts = type.GetCustomAttributes (typeof (ConstructorNeedsTagAttribute), true);
 218                                 if (atts != null && atts.Length > 0) {
 219                                         ConstructorNeedsTagAttribute att = (ConstructorNeedsTagAttribute) atts [0];
 220                                         if (att.NeedsTag)
 221                                                 newExpr.Parameters.Add (new CodePrimitiveExpression (builder.TagName));
 222                                 } else if (builder is DataBindingBuilder) {
 223                                         newExpr.Parameters.Add (new CodePrimitiveExpression (0));
 224                                         newExpr.Parameters.Add (new CodePrimitiveExpression (1));
 225                                 }
 226
 227                                 method.Statements.Add (new CodeVariableDeclarationStatement (builder.ControlType, "__ctrl"));
 228                                 CodeAssignStatement assign = new CodeAssignStatement ();
 229                                 assign.Left = ctrlVar;
 230                                 assign.Right = newExpr;
 231                                 method.Statements.Add (assign);
 232
 233                                 // this.$builderID = _ctrl;
 234                                 //
 235                                 CodeFieldReferenceExpression builderID = new CodeFieldReferenceExpression ();
 236                                 builderID.TargetObject = thisRef;
 237                                 builderID.FieldName = builder.ID;
 238                                 assign = new CodeAssignStatement ();
 239                                 assign.Left = builderID;
 240                                 assign.Right = ctrlVar;
 241                                 method.Statements.Add (assign);
 242                                 if (typeof (UserControl).IsAssignableFrom (type)) {
 243                                         CodeMethodReferenceExpression mref = new CodeMethodReferenceExpression ();
 244                                         mref.TargetObject = builderID;
 245                                         mref.MethodName = "InitializeAsUserControl";
 246                                         CodeMethodInvokeExpression initAsControl = new CodeMethodInvokeExpression (mref);
 247                                         initAsControl.Parameters.Add (new CodePropertyReferenceExpression (thisRef, "Page"));
 248                                         method.Statements.Add (initAsControl);
 249                                 }
 250
 251 #if NET_2_0
 252                                 if (builder.ParentTemplateBuilder is System.Web.UI.WebControls.ContentBuilderInternal) {
 253                                         PropertyInfo pi;
 254
 255                                         try {
 256                                                 pi = type.GetProperty ("TemplateControl");
 257                                         } catch (Exception) {
 258                                                 pi = null;
 259                                         }
 260
 261                                         if (pi != null && pi.CanWrite) {
 262                                                 // __ctrl.TemplateControl = this;
 263                                                 assign = new CodeAssignStatement ();
 264                                                 assign.Left = new CodePropertyReferenceExpression (ctrlVar, "TemplateControl");;
 265                                                 assign.Right = thisRef;
 266                                                 method.Statements.Add (assign);
 267                                         }
 268                                 }
 269
 270                                 // _ctrl.SkinID = $value
 271                                 // _ctrl.ApplyStyleSheetSkin (this);
 272                                 //
 273                                 // the SkinID assignment needs to come
 274                                 // before the call to
 275                                 // ApplyStyleSheetSkin, for obvious
 276                                 // reasons.  We skip SkinID in
 277                                 // CreateAssignStatementsFromAttributes
 278                                 // below.
 279                                 //
 280                                 if (builder.attribs != null) {
 281                                         string skinid = builder.attribs ["skinid"] as string;
 282                                         if (skinid != null)
 283                                                 CreateAssignStatementFromAttribute (builder, "skinid");
 284                                 }
 285                                 if (typeof (WebControl).IsAssignableFrom (type)) {
 286                                         CodeMethodInvokeExpression applyStyleSheetSkin = new CodeMethodInvokeExpression (ctrlVar, "ApplyStyleSheetSkin");
 287                                         if (typeof (Page).IsAssignableFrom (parser.BaseType))
 288                                                 applyStyleSheetSkin.Parameters.Add (thisRef);
 289                                         else
 290                                                 applyStyleSheetSkin.Parameters.Add (new CodePropertyReferenceExpression (thisRef, "Page"));
 291                                         method.Statements.Add (applyStyleSheetSkin);
 292                                 }
 293 #endif
 294
 295 #if NET_2_0
 296                                 if (typeof (ContentPlaceHolder).IsAssignableFrom (type)) {
 297                                         CodePropertyReferenceExpression prop = new CodePropertyReferenceExpression (thisRef, "ContentPlaceHolders");
 298                                         CodeMethodInvokeExpression addPlaceholder = new CodeMethodInvokeExpression (prop, "Add");
 299                                         addPlaceholder.Parameters.Add (ctrlVar);
 300                                         method.Statements.Add (addPlaceholder);
 301
 302
 303                                         CodeConditionStatement condStatement;
 304
 305                                         // Add the __Template_* field
 306                                         CodeMemberField fld = new CodeMemberField (typeof (ITemplate), "__Template_" + builder.ID);
 307                                         fld.Attributes = MemberAttributes.Private;
 308                                         mainClass.Members.Add (fld);
 309
 310                                         CodeFieldReferenceExpression templateID = new CodeFieldReferenceExpression ();
 311                                         templateID.TargetObject = thisRef;
 312                                         templateID.FieldName = "__Template_" + builder.ID;
 313
 314                                         // if ((this.ContentTemplates != null)) {
 315                                         //      this.__Template_$builder.ID = ((System.Web.UI.ITemplate)(this.ContentTemplates["$builder.ID"]));
 316                                         // }
 317                                         //
 318                                         CodeFieldReferenceExpression contentTemplates = new CodeFieldReferenceExpression ();
 319                                         contentTemplates.TargetObject = thisRef;
 320                                         contentTemplates.FieldName = "ContentTemplates";
 321
 322                                         CodeIndexerExpression indexer = new CodeIndexerExpression ();
 323                                         indexer.TargetObject = new CodePropertyReferenceExpression (thisRef, "ContentTemplates");
 324                                         indexer.Indices.Add (new CodePrimitiveExpression (builder.ID));
 325
 326                                         assign = new CodeAssignStatement ();
 327                                         assign.Left = templateID;
 328                                         assign.Right = new CodeCastExpression (new CodeTypeReference (typeof (ITemplate)), indexer);
 329
 330                                         condStatement = new CodeConditionStatement (new CodeBinaryOperatorExpression (contentTemplates,
 331                                                                                                                       CodeBinaryOperatorType.IdentityInequality,
 332                                                                                                                       new CodePrimitiveExpression (null)),
 333                                                                                     assign);
 334
 335                                         method.Statements.Add (condStatement);
 336
 337                                         // if ((this.__Template_mainContent != null)) {
 338                                         //      this.__Template_mainContent.InstantiateIn(__ctrl);
 339                                         // }
 340                                         // and also set things up such that any additional code ends up in:
 341                                         // else {
 342                                         //      ...
 343                                         // }
 344                                         //
 345                                         CodeMethodReferenceExpression methodRef = new CodeMethodReferenceExpression ();
 346                                         methodRef.TargetObject = templateID;
 347                                         methodRef.MethodName = "InstantiateIn";
 348
 349                                         CodeMethodInvokeExpression instantiateInInvoke;
 350                                         instantiateInInvoke = new CodeMethodInvokeExpression (methodRef, ctrlVar);
 351
 352                                         condStatement = new CodeConditionStatement (new CodeBinaryOperatorExpression (templateID,
 353                                                                                                                       CodeBinaryOperatorType.IdentityInequality,
 354                                                                                                                       new CodePrimitiveExpression (null)),
 355                                                                                     new CodeExpressionStatement (instantiateInInvoke));
 356                                         method.Statements.Add (condStatement);
 357
 358                                         // this is the bit that causes the following stuff to end up in the else { }
 359                                         builder.methodStatements = condStatement.FalseStatements;
 360                                 }
 361 #endif
 362                         }
 363
 364                         mainClass.Members.Add (method);
 365                 }
 366
 367 #if NET_2_0
 368                 void SetCustomAttribute (CodeMemberMethod method, UnknownAttributeDescriptor uad)
 369                 {
 370                         CodeAssignStatement assign = new CodeAssignStatement ();
 371                         assign.Left = new CodePropertyReferenceExpression (
 372                                 new CodeArgumentReferenceExpression("__ctrl"),
 373                                 uad.Info.Name);
 374                         assign.Right = GetExpressionFromString (uad.Value.GetType (), uad.Value.ToString (), uad.Info);
 375
 376                         method.Statements.Add (assign);
 377                 }
 378
 379                 void SetCustomAttributes (CodeMemberMethod method)
 380                 {
 381                         Type baseType = parser.BaseType;
 382                         if (baseType == null)
 383                                 return;
 384
 385                         List <UnknownAttributeDescriptor> attrs = parser.UnknownMainAttributes;
 386                         if (attrs == null || attrs.Count == 0)
 387                                 return;
 388
 389                         foreach (UnknownAttributeDescriptor uad in attrs)
 390                                 SetCustomAttribute (method, uad);
 391                 }
 392 #endif
 393
 394                 protected virtual void AddStatementsToInitMethod (CodeMemberMethod method)
 395                 {
 396                 }
 397
 398                 void AddLiteralSubObject (ControlBuilder builder, string str)
 399                 {
 400                         if (!builder.HasAspCode) {
 401                                 CodeObjectCreateExpression expr;
 402                                 expr = new CodeObjectCreateExpression (typeof (LiteralControl), new CodePrimitiveExpression (str));
 403                                 AddParsedSubObjectStmt (builder, expr);
 404                         } else {
 405                                 CodeMethodReferenceExpression methodRef = new CodeMethodReferenceExpression ();
 406                                 methodRef.TargetObject = new CodeArgumentReferenceExpression ("__output");
 407                                 methodRef.MethodName = "Write";
 408
 409                                 CodeMethodInvokeExpression expr;
 410                                 expr = new CodeMethodInvokeExpression (methodRef, new CodePrimitiveExpression (str));
 411                                 builder.renderMethod.Statements.Add (expr);
 412                         }
 413                 }
 414
 415                 string TrimDB (string value)
 416                 {
 417                         string str = value.Trim ();
 418                         str = str.Substring (3);
 419                         return str.Substring (0, str.Length - 2);
 420                 }
 421
 422                 string DataBoundProperty (ControlBuilder builder, Type type, string varName, string value)
 423                 {
 424                         value = TrimDB (value);
 425                         CodeMemberMethod method;
 426                         string dbMethodName = builder.method.Name + "_DB_" + dataBoundAtts++;
 427 #if NET_2_0
 428                         bool need_if = false;
 429                         value = value.Trim ();
 430                         if (StrUtils.StartsWith (value, "Bind", true)) {
 431                                 Match match = bindRegexInValue.Match (value);
 432                                 if (match.Success) {
 433                                         value = "Eval" + value.Substring (4);
 434                                         need_if = true;
 435                                 }
 436                         }
 437 #endif
 438                         method = CreateDBMethod (dbMethodName, GetContainerType (builder), builder.ControlType);
 439
 440                         CodeVariableReferenceExpression targetExpr = new CodeVariableReferenceExpression ("target");
 441
 442                         // This should be a CodePropertyReferenceExpression for properties... but it works anyway
 443                         CodeFieldReferenceExpression field = new CodeFieldReferenceExpression (targetExpr, varName);
 444
 445                         CodeExpression expr;
 446                         if (type == typeof (string)) {
 447                                 CodeMethodInvokeExpression tostring = new CodeMethodInvokeExpression ();
 448                                 CodeTypeReferenceExpression conv = new CodeTypeReferenceExpression (typeof (Convert));
 449                                 tostring.Method = new CodeMethodReferenceExpression (conv, "ToString");
 450                                 tostring.Parameters.Add (new CodeSnippetExpression (value));
 451                                 expr = tostring;
 452                         } else {
 453                                 CodeSnippetExpression snippet = new CodeSnippetExpression (value);
 454                                 expr = new CodeCastExpression (type, snippet);
 455                         }
 456
 457                         CodeAssignStatement assign = new CodeAssignStatement (field, expr);
 458 #if NET_2_0
 459                         if (need_if) {
 460                                 CodeExpression page = new CodePropertyReferenceExpression (thisRef, "Page");
 461                                 CodeExpression left = new CodeMethodInvokeExpression (page, "GetDataItem");
 462                                 CodeBinaryOperatorExpression ce = new CodeBinaryOperatorExpression (left, CodeBinaryOperatorType.IdentityInequality, new CodePrimitiveExpression (null));
 463                                 CodeConditionStatement ccs = new CodeConditionStatement (ce, assign);
 464                                 method.Statements.Add (ccs);
 465                         }
 466                         else
 467 #endif
 468                                 method.Statements.Add (assign);
 469
 470                         mainClass.Members.Add (method);
 471                         return method.Name;
 472                 }
 473
 474                 void AddCodeForPropertyOrField (ControlBuilder builder, Type type, string var_name, string att, MemberInfo member, bool isDataBound, bool isExpression)
 475                 {
 476                         CodeMemberMethod method = builder.method;
 477                         bool isWritable = IsWritablePropertyOrField (member);
 478                         if (isDataBound && isWritable) {
 479                                 string dbMethodName = DataBoundProperty (builder, type, var_name, att);
 480                                 AddEventAssign (method, "DataBinding", typeof (EventHandler), dbMethodName);
 481                                 return;
 482                         }
 483 #if NET_2_0
 484                         else if (isExpression && isWritable) {
 485                                 AddExpressionAssign (method, member, type, var_name, att);
 486                                 return;
 487                         }
 488 #endif
 489
 490                         CodeAssignStatement assign = new CodeAssignStatement ();
 491                         assign.Left = new CodePropertyReferenceExpression (ctrlVar, var_name);
 492                         currentLocation = builder.location;
 493                         assign.Right = GetExpressionFromString (type, att, member);
 494
 495                         method.Statements.Add (assign);
 496                 }
 497
 498                 bool IsDataBound (string value)
 499                 {
 500                         if (value == null || value == "")
 501                                 return false;
 502
 503                         string str = value.Trim ();
 504                         return (StrUtils.StartsWith (str, "<%#") && StrUtils.EndsWith (str, "%>"));
 505                 }
 506
 507 #if NET_2_0
 508                 bool IsExpression (string value)
 509                 {
 510                         if (value == null || value == "")
 511                                 return false;
 512                         string str = value.Trim ();
 513                         return (StrUtils.StartsWith (str, "<%$") && StrUtils.EndsWith (str, "%>"));
 514                 }
 515
 516                 void RegisterBindingInfo (ControlBuilder builder, string propName, ref string value)
 517                 {
 518                         string str = value.Trim ();
 519                         str = str.Substring (3).Trim ();        // eats "<%#"
 520                         if (StrUtils.StartsWith (str, "Bind", true)) {
 521                                 Match match = bindRegex.Match (str);
 522                                 if (match.Success) {
 523                                         string bindingName = match.Groups [1].Value;
 524
 525                                         TemplateBuilder templateBuilder = builder.ParentTemplateBuilder;
 526                                         if (templateBuilder == null || templateBuilder.BindingDirection == BindingDirection.OneWay)
 527                                                 throw new HttpException ("Bind expression not allowed in this context.");
 528
 529                                         string id = builder.attribs ["ID"] as string;
 530                                         if (id == null)
 531                                                 throw new HttpException ("Control of type '" + builder.ControlType + "' using two-way binding on property '" + propName + "' must have an ID.");
 532
 533                                         templateBuilder.RegisterBoundProperty (builder.ControlType, propName, id, bindingName);
 534                                 }
 535                         }
 536                 }
 537 #endif
 538
 539                 /*
 540                 static bool InvariantCompare (string a, string b)
 541                 {
 542                         return (0 == String.Compare (a, b, false, CultureInfo.InvariantCulture));
 543                 }
 544                 */
 545
 546                 static bool InvariantCompareNoCase (string a, string b)
 547                 {
 548                         return (0 == String.Compare (a, b, true, CultureInfo.InvariantCulture));
 549                 }
 550
 551                 static MemberInfo GetFieldOrProperty (Type type, string name)
 552                 {
 553                         MemberInfo member = null;
 554                         try {
 555                                 member = type.GetProperty (name, noCaseFlags & ~BindingFlags.NonPublic);
 556                         } catch {}
 557
 558                         if (member != null)
 559                                 return member;
 560
 561                         try {
 562                                 member = type.GetField (name, noCaseFlags & ~BindingFlags.NonPublic);
 563                         } catch {}
 564
 565                         return member;
 566                 }
 567
 568                 static bool IsWritablePropertyOrField (MemberInfo member)
 569                 {
 570                         PropertyInfo pi = member as PropertyInfo;
 571                         if (pi != null)
 572                                 return pi.CanWrite;
 573                         FieldInfo fi = member as FieldInfo;
 574                         if (fi != null)
 575                                 return !fi.IsInitOnly;
 576                         throw new ArgumentException ("Argument must be of PropertyInfo or FieldInfo type", "member");
 577                 }
 578
 579                 bool ProcessPropertiesAndFields (ControlBuilder builder, MemberInfo member, string id,
 580                                                  string attValue, string prefix)
 581                 {
 582                         int hyphen = id.IndexOf ('-');
 583                         bool isPropertyInfo = (member is PropertyInfo);
 584                         bool isDataBound = IsDataBound (attValue);
 585 #if NET_2_0
 586                         bool isExpression = !isDataBound && IsExpression (attValue);
 587 #else
 588                         bool isExpression = false;
 589 #endif
 590                         Type type;
 591                         if (isPropertyInfo) {
 592                                 type = ((PropertyInfo) member).PropertyType;
 593                         } else {
 594                                 type = ((FieldInfo) member).FieldType;
 595                         }
 596
 597                         if (InvariantCompareNoCase (member.Name, id)) {
 598 #if NET_2_0
 599                                 if (isDataBound)
 600                                         RegisterBindingInfo (builder, member.Name, ref attValue);
 601
 602 #endif
 603                                 if (!IsWritablePropertyOrField (member))
 604                                         return false;
 605
 606                                 AddCodeForPropertyOrField (builder, type, member.Name, attValue, member, isDataBound, isExpression);
 607                                 return true;
 608                         }
 609
 610                         if (hyphen == -1)
 611                                 return false;
 612
 613                         string prop_field = id.Replace ("-", ".");
 614                         string [] parts = prop_field.Split (new char [] {'.'});
 615                         int length = parts.Length;
 616                         if (length < 2 || !InvariantCompareNoCase (member.Name, parts [0]))
 617                                 return false;
 618
 619                         if (length > 2) {
 620                                 MemberInfo sub_member = GetFieldOrProperty (type, parts [1]);
 621                                 if (sub_member == null)
 622                                         return false;
 623
 624                                 string new_prefix = prefix + parts [0] + ".";
 625                                 string new_id = id.Substring (hyphen + 1);
 626                                 return ProcessPropertiesAndFields (builder, sub_member, new_id, attValue, new_prefix);
 627                         }
 628
 629                         MemberInfo subpf = GetFieldOrProperty (type, parts [1]);
 630                         if (!(subpf is PropertyInfo))
 631                                 return false;
 632
 633                         PropertyInfo subprop = (PropertyInfo) subpf;
 634                         if (subprop.CanWrite == false)
 635                                 return false;
 636
 637                         bool is_bool = (subprop.PropertyType == typeof (bool));
 638                         if (!is_bool && attValue == null)
 639                                 return false; // Font-Size -> Font-Size="" as html
 640
 641                         string val = attValue;
 642                         if (attValue == null && is_bool)
 643                                 val = "true"; // Font-Bold <=> Font-Bold="true"
 644 #if NET_2_0
 645                         if (isDataBound) RegisterBindingInfo (builder, prefix + member.Name + "." + subprop.Name, ref attValue);
 646 #endif
 647                         AddCodeForPropertyOrField (builder, subprop.PropertyType,
 648                                                    prefix + member.Name + "." + subprop.Name,
 649                                                    val, subprop, isDataBound, isExpression);
 650
 651                         return true;
 652                 }
 653
 654 #if NET_2_0
 655                 void AddExpressionAssign (CodeMemberMethod method, MemberInfo member, Type type, string name, string value)
 656                 {
 657                         CodeAssignStatement assign = new CodeAssignStatement ();
 658                         assign.Left = new CodePropertyReferenceExpression (ctrlVar, name);
 659
 660                         // First let's find the correct expression builder
 661                         string expr = value.Substring (3, value.Length - 5).Trim ();
 662                         int colon = expr.IndexOf (':');
 663                         if (colon == -1)
 664                                 return;
 665                         string prefix = expr.Substring (0, colon).Trim ();
 666
 667                         System.Configuration.Configuration config = WebConfigurationManager.OpenWebConfiguration ("");
 668                         if (config == null)
 669                                 return;
 670                         CompilationSection cs = (CompilationSection)config.GetSection ("system.web/compilation");
 671                         if (cs == null)
 672                                 return;
 673                         if (cs.ExpressionBuilders == null || cs.ExpressionBuilders.Count == 0)
 674                                 return;
 675
 676                         System.Web.Configuration.ExpressionBuilder ceb = cs.ExpressionBuilders[prefix];
 677                         if (ceb == null)
 678                                 return;
 679                         string builderType = ceb.Type;
 680
 681                         Type t;
 682                         try {
 683                                 t = System.Type.GetType (builderType, true);
 684                         } catch (Exception e) {
 685                                 throw new HttpException (
 686                                         String.Format ("Failed to load expression builder type `{0}'", builderType), e);
 687                         }
 688
 689                         if (!typeof (System.Web.Compilation.ExpressionBuilder).IsAssignableFrom (t))
 690                                 throw new HttpException (
 691                                         String.Format (
 692                                                 "Type {0} is not descendant from System.Web.Compilation.ExpressionBuilder",
 693                                                 builderType));
 694
 695                         System.Web.Compilation.ExpressionBuilder eb = null;
 696                         object parsedData;
 697                         ExpressionBuilderContext ctx;
 698
 699                         try {
 700                                 eb = Activator.CreateInstance (t) as System.Web.Compilation.ExpressionBuilder;
 701                                 ctx = new ExpressionBuilderContext (HttpContext.Current.Request.FilePath);
 702                                 parsedData = eb.ParseExpression (expr.Substring (colon + 1).Trim (), type, ctx);
 703                         } catch (Exception e) {
 704                                 throw new HttpException (
 705                                         String.Format ("Failed to create an instance of type `{0}'", builderType), e);
 706                         }
 707
 708                         BoundPropertyEntry bpe = CreateBoundPropertyEntry (member as PropertyInfo, prefix, expr);
 709                         assign.Right = eb.GetCodeExpression (bpe, parsedData, ctx);
 710
 711                         method.Statements.Add (assign);
 712                 }
 713
 714                 BoundPropertyEntry CreateBoundPropertyEntry (PropertyInfo pi, string prefix, string expr)
 715                 {
 716                         if (pi == null)
 717                                 return null;
 718
 719                         BoundPropertyEntry ret = new BoundPropertyEntry ();
 720                         ret.Expression = expr;
 721                         ret.ExpressionPrefix = prefix;
 722                         ret.Generated = false;
 723                         ret.Name = pi.Name;
 724                         ret.PropertyInfo = pi;
 725                         ret.Type = pi.PropertyType;
 726
 727                         return ret;
 728                 }
 729
 730                 void AssignPropertyFromResources (CodeMemberMethod method, MemberInfo mi, string attvalue)
 731                 {
 732                         bool isProperty = mi.MemberType == MemberTypes.Property;
 733                         bool isField = !isProperty && (mi.MemberType == MemberTypes.Field);
 734
 735                         if (!isProperty && !isField || !IsWritablePropertyOrField (mi))
 736                                 return;
 737
 738                         string memberName = mi.Name;
 739                         string resname = String.Format ("{0}.{1}", attvalue, memberName);
 740
 741                         // __ctrl.Text = System.Convert.ToString(HttpContext.GetLocalResourceObject("ButtonResource1.Text"));
 742                         string inputFile = parser.InputFile;
 743                         string physPath = HttpContext.Current.Request.PhysicalApplicationPath;
 744
 745                         if (StrUtils.StartsWith (inputFile, physPath))
 746                                 inputFile = parser.InputFile.Substring (physPath.Length - 1);
 747                          else
 748                                 return;
 749
 750                         object obj = HttpContext.GetLocalResourceObject (inputFile, resname);
 751                         if (obj == null)
 752                                 return;
 753
 754                         Type member_type = null;
 755                         if (isProperty)
 756                                 member_type = ((PropertyInfo)mi).PropertyType;
 757                         else if (isField)
 758                                 member_type = ((FieldInfo)mi).FieldType;
 759                         else
 760                                 return; // an "impossible" case
 761
 762                         Type declaringType = mi.DeclaringType;
 763                         TypeConverter converter = TypeDescriptor.GetProperties (declaringType) [memberName].Converter;
 764                         CodeAssignStatement assign = new CodeAssignStatement ();
 765
 766                         assign.Left = new CodePropertyReferenceExpression (ctrlVar, memberName);
 767                         assign.Right = ResourceExpressionBuilder.CreateGetLocalResourceObject (mi, resname);
 768
 769                         method.Statements.Add (assign);
 770                 }
 771
 772                 void AssignPropertiesFromResources (CodeMemberMethod method, Type controlType, string attvalue)
 773                 {
 774                         // Process all public fields and properties of the control. We don't use GetMembers to make the code
 775                         // faster
 776                         FieldInfo [] fields = controlType.GetFields (
 777                                 BindingFlags.Instance | BindingFlags.Static |
 778                                 BindingFlags.Public | BindingFlags.FlattenHierarchy);
 779                         PropertyInfo [] properties = controlType.GetProperties (
 780                                 BindingFlags.Instance | BindingFlags.Static |
 781                                 BindingFlags.Public | BindingFlags.FlattenHierarchy);
 782
 783                         foreach (FieldInfo fi in fields)
 784                                 AssignPropertyFromResources (method, fi, attvalue);
 785                         foreach (PropertyInfo pi in properties)
 786                                 AssignPropertyFromResources (method, pi, attvalue);
 787                 }
 788
 789                 void AssignPropertiesFromResources (ControlBuilder builder, string attvalue)
 790                 {
 791                         if (attvalue == null || attvalue.Length == 0)
 792                                 return;
 793
 794                         Type controlType = builder.ControlType;
 795                         if (controlType == null)
 796                                 return;
 797
 798                         AssignPropertiesFromResources (builder.method, controlType, attvalue);
 799                 }
 800 #endif
 801
 802                 void AddEventAssign (CodeMemberMethod method, string name, Type type, string value)
 803                 {
 804                         //"__ctrl.{0} += new {1} (this.{2});"
 805                         CodeEventReferenceExpression evtID = new CodeEventReferenceExpression (ctrlVar, name);
 806
 807                         CodeDelegateCreateExpression create;
 808                         create = new CodeDelegateCreateExpression (new CodeTypeReference (type), thisRef, value);
 809
 810                         CodeAttachEventStatement attach = new CodeAttachEventStatement (evtID, create);
 811                         method.Statements.Add (attach);
 812                 }
 813
 814                 void CreateAssignStatementFromAttribute (ControlBuilder builder, string id)
 815                 {
 816                         EventInfo [] ev_info = null;
 817                         Type type = builder.ControlType;
 818
 819                         string attvalue = builder.attribs [id] as string;
 820                         if (id.Length > 2 && id.Substring (0, 2).ToUpper () == "ON"){
 821                                 if (ev_info == null)
 822                                         ev_info = type.GetEvents ();
 823
 824                                 string id_as_event = id.Substring (2);
 825                                 foreach (EventInfo ev in ev_info){
 826                                         if (InvariantCompareNoCase (ev.Name, id_as_event)){
 827                                                 AddEventAssign (builder.method,
 828                                                                 ev.Name,
 829                                                                 ev.EventHandlerType,
 830                                                                 attvalue);
 831
 832                                                 return;
 833                                         }
 834                                 }
 835
 836                         }
 837
 838 #if NET_2_0
 839                         if (id.ToLower () == "meta:resourcekey") {
 840                                 AssignPropertiesFromResources (builder, attvalue);
 841                                 return;
 842                         }
 843 #endif
 844
 845                         int hyphen = id.IndexOf ('-');
 846                         string alt_id = id;
 847                         if (hyphen != -1)
 848                                 alt_id = id.Substring (0, hyphen);
 849
 850                         MemberInfo fop = GetFieldOrProperty (type, alt_id);
 851                         if (fop != null) {
 852                                 if (ProcessPropertiesAndFields (builder, fop, id, attvalue, null))
 853                                         return;
 854                         }
 855
 856                         if (!typeof (IAttributeAccessor).IsAssignableFrom (type))
 857                                 throw new ParseException (builder.location, "Unrecognized attribute: " + id);
 858
 859                         string val;
 860                         CodeMemberMethod method = builder.method;
 861                         bool databound = IsDataBound (attvalue);
 862
 863                         if (databound) {
 864                                 val = attvalue.Substring (3);
 865                                 val = val.Substring (0, val.Length - 2);
 866                                 CreateDBAttributeMethod (builder, id, val);
 867                         } else {
 868                                 CodeCastExpression cast;
 869                                 CodeMethodReferenceExpression methodExpr;
 870                                 CodeMethodInvokeExpression expr;
 871
 872                                 cast = new CodeCastExpression (typeof (IAttributeAccessor), ctrlVar);
 873                                 methodExpr = new CodeMethodReferenceExpression (cast, "SetAttribute");
 874                                 expr = new CodeMethodInvokeExpression (methodExpr);
 875                                 expr.Parameters.Add (new CodePrimitiveExpression (id));
 876                                 expr.Parameters.Add (new CodePrimitiveExpression (attvalue));
 877                                 method.Statements.Add (expr);
 878                         }
 879
 880                 }
 881
 882                 protected void CreateAssignStatementsFromAttributes (ControlBuilder builder)
 883                 {
 884 #if NET_2_0
 885                         bool haveMetaKey = false;
 886 #endif
 887                         this.dataBoundAtts = 0;
 888                         IDictionary atts = builder.attribs;
 889                         if (atts == null || atts.Count == 0)
 890                                 return;
 891
 892                         foreach (string id in atts.Keys) {
 893                                 if (InvariantCompareNoCase (id, "runat"))
 894                                         continue;
 895
 896 #if NET_2_0
 897                                 /* we skip SkinID here as it's assigned in BuildControlTree */
 898                                 if (InvariantCompareNoCase (id, "skinid"))
 899                                         continue;
 900                                 if (InvariantCompareNoCase (id, "meta:resourcekey")) {
 901                                         haveMetaKey = true;
 902                                         continue;
 903                                 }
 904 #endif
 905                                 CreateAssignStatementFromAttribute (builder, id);
 906                         }
 907
 908 #if NET_2_0
 909                         if (haveMetaKey)
 910                                 CreateAssignStatementFromAttribute (builder, "meta:resourcekey");
 911 #endif
 912                 }
 913
 914                 void CreateDBAttributeMethod (ControlBuilder builder, string attr, string code)
 915                 {
 916                         if (code == null || code.Trim () == "")
 917                                 return;
 918
 919                         string id = builder.GetNextID (null);
 920                         string dbMethodName = "__DataBind_" + id;
 921                         CodeMemberMethod method = builder.method;
 922                         AddEventAssign (method, "DataBinding", typeof (EventHandler), dbMethodName);
 923
 924                         method = CreateDBMethod (dbMethodName, GetContainerType (builder), builder.ControlType);
 925                         CodeCastExpression cast;
 926                         CodeMethodReferenceExpression methodExpr;
 927                         CodeMethodInvokeExpression expr;
 928
 929                         CodeVariableReferenceExpression targetExpr = new CodeVariableReferenceExpression ("target");
 930                         cast = new CodeCastExpression (typeof (IAttributeAccessor), targetExpr);
 931                         methodExpr = new CodeMethodReferenceExpression (cast, "SetAttribute");
 932                         expr = new CodeMethodInvokeExpression (methodExpr);
 933                         expr.Parameters.Add (new CodePrimitiveExpression (attr));
 934                         CodeMethodInvokeExpression tostring = new CodeMethodInvokeExpression ();
 935                         tostring.Method = new CodeMethodReferenceExpression (
 936                                                         new CodeTypeReferenceExpression (typeof (Convert)),
 937                                                         "ToString");
 938                         tostring.Parameters.Add (new CodeSnippetExpression (code));
 939                         expr.Parameters.Add (tostring);
 940                         method.Statements.Add (expr);
 941                         mainClass.Members.Add (method);
 942                 }
 943
 944                 void AddRenderControl (ControlBuilder builder)
 945                 {
 946                         CodeIndexerExpression indexer = new CodeIndexerExpression ();
 947                         indexer.TargetObject = new CodePropertyReferenceExpression (
 948                                                         new CodeArgumentReferenceExpression ("parameterContainer"),
 949                                                         "Controls");
 950
 951                         indexer.Indices.Add (new CodePrimitiveExpression (builder.renderIndex));
 952
 953                         CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression (indexer, "RenderControl");
 954                         invoke.Parameters.Add (new CodeArgumentReferenceExpression ("__output"));
 955                         builder.renderMethod.Statements.Add (invoke);
 956                         builder.renderIndex++;
 957                 }
 958
 959                 protected void AddChildCall (ControlBuilder parent, ControlBuilder child)
 960                 {
 961                         if (parent == null || child == null)
 962                                 return;
 963                         CodeMethodReferenceExpression m = new CodeMethodReferenceExpression (thisRef, child.method.Name);
 964                         CodeMethodInvokeExpression expr = new CodeMethodInvokeExpression (m);
 965
 966                         object [] atts = null;
 967
 968                         if (child.ControlType != null)
 969                                 child.ControlType.GetCustomAttributes (typeof (PartialCachingAttribute), true);
 970                         if (atts != null && atts.Length > 0) {
 971                                 PartialCachingAttribute pca = (PartialCachingAttribute) atts [0];
 972                                 CodeTypeReferenceExpression cc = new CodeTypeReferenceExpression("System.Web.UI.StaticPartialCachingControl");
 973                                 CodeMethodInvokeExpression build = new CodeMethodInvokeExpression (cc, "BuildCachedControl");
 974                                 build.Parameters.Add (new CodeArgumentReferenceExpression("__ctrl"));
 975                                 build.Parameters.Add (new CodePrimitiveExpression (child.ID));
 976 #if NET_1_1
 977                                 if (pca.Shared)
 978                                         build.Parameters.Add (new CodePrimitiveExpression (child.ControlType.GetHashCode ().ToString ()));
 979                                 else
 980 #endif
 981                                         build.Parameters.Add (new CodePrimitiveExpression (Guid.NewGuid ().ToString ()));
 982
 983                                 build.Parameters.Add (new CodePrimitiveExpression (pca.Duration));
 984                                 build.Parameters.Add (new CodePrimitiveExpression (pca.VaryByParams));
 985                                 build.Parameters.Add (new CodePrimitiveExpression (pca.VaryByControls));
 986                                 build.Parameters.Add (new CodePrimitiveExpression (pca.VaryByCustom));
 987                                 build.Parameters.Add (new CodeDelegateCreateExpression (
 988                                                               new CodeTypeReference (typeof (System.Web.UI.BuildMethod)),
 989                                                               thisRef, child.method.Name));
 990
 991                                 parent.methodStatements.Add (build);
 992                                 if (parent.HasAspCode)
 993                                         AddRenderControl (parent);
 994                                 return;
 995                         }
 996
 997                         if (child.isProperty || parent.ChildrenAsProperties) {
 998                                 expr.Parameters.Add (new CodeFieldReferenceExpression (ctrlVar, child.TagName));
 999                                 parent.methodStatements.Add (expr);
1000                                 return;
1001                         }
1002
1003                         parent.methodStatements.Add (expr);
1004                         CodeFieldReferenceExpression field = new CodeFieldReferenceExpression (thisRef, child.ID);
1005                         if (parent.ControlType == null || typeof (IParserAccessor).IsAssignableFrom (parent.ControlType)) {
1006                                 AddParsedSubObjectStmt (parent, field);
1007                         } else {
1008                                 CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression (ctrlVar, "Add");
1009                                 invoke.Parameters.Add (field);
1010                                 parent.methodStatements.Add (invoke);
1011                         }
1012
1013                         if (parent.HasAspCode)
1014                                 AddRenderControl (parent);
1015                 }
1016
1017                 void AddTemplateInvocation (CodeMemberMethod method, string name, string methodName)
1018                 {
1019                         CodePropertyReferenceExpression prop = new CodePropertyReferenceExpression (ctrlVar, name);
1020
1021                         CodeDelegateCreateExpression newBuild = new CodeDelegateCreateExpression (
1022                                 new CodeTypeReference (typeof (BuildTemplateMethod)), thisRef, methodName);
1023
1024                         CodeObjectCreateExpression newCompiled = new CodeObjectCreateExpression (typeof (CompiledTemplateBuilder));
1025                         newCompiled.Parameters.Add (newBuild);
1026
1027                         CodeAssignStatement assign = new CodeAssignStatement (prop, newCompiled);
1028                         method.Statements.Add (assign);
1029                 }
1030
1031 #if NET_2_0
1032                 void AddBindableTemplateInvocation (CodeMemberMethod method, string name, string methodName, string extractMethodName)
1033                 {
1034                         CodePropertyReferenceExpression prop = new CodePropertyReferenceExpression (ctrlVar, name);
1035
1036                         CodeDelegateCreateExpression newBuild = new CodeDelegateCreateExpression (
1037                                 new CodeTypeReference (typeof (BuildTemplateMethod)), thisRef, methodName);
1038
1039                         CodeDelegateCreateExpression newExtract = new CodeDelegateCreateExpression (
1040                                 new CodeTypeReference (typeof (ExtractTemplateValuesMethod)), thisRef, extractMethodName);
1041
1042                         CodeObjectCreateExpression newCompiled = new CodeObjectCreateExpression (typeof (CompiledBindableTemplateBuilder));
1043                         newCompiled.Parameters.Add (newBuild);
1044                         newCompiled.Parameters.Add (newExtract);
1045
1046                         CodeAssignStatement assign = new CodeAssignStatement (prop, newCompiled);
1047                         method.Statements.Add (assign);
1048                 }
1049
1050                 string CreateExtractValuesMethod (TemplateBuilder builder)
1051                 {
1052                         CodeMemberMethod method = new CodeMemberMethod ();
1053                         method.Name = "__ExtractValues_" + builder.ID;
1054                         method.Attributes = MemberAttributes.Private | MemberAttributes.Final;
1055                         method.ReturnType = new CodeTypeReference (typeof(IOrderedDictionary));
1056
1057                         CodeParameterDeclarationExpression arg = new CodeParameterDeclarationExpression ();
1058                         arg.Type = new CodeTypeReference (typeof (Control));
1059                         arg.Name = "__container";
1060                         method.Parameters.Add (arg);
1061                         mainClass.Members.Add (method);
1062
1063                         CodeObjectCreateExpression newTable = new CodeObjectCreateExpression ();
1064                         newTable.CreateType = new CodeTypeReference (typeof(OrderedDictionary));
1065                         method.Statements.Add (new CodeVariableDeclarationStatement (typeof(OrderedDictionary), "__table", newTable));
1066                         CodeVariableReferenceExpression tableExp = new CodeVariableReferenceExpression ("__table");
1067
1068                         if (builder.Bindings != null) {
1069                                 Hashtable hash = new Hashtable ();
1070                                 foreach (TemplateBinding binding in builder.Bindings) {
1071                                         CodeConditionStatement sif;
1072                                         CodeVariableReferenceExpression control;
1073                                         CodeAssignStatement assign;
1074
1075                                         if (hash [binding.ControlId] == null) {
1076
1077                                                 CodeVariableDeclarationStatement dec = new CodeVariableDeclarationStatement (binding.ControlType, binding.ControlId);
1078                                                 method.Statements.Add (dec);
1079                                                 CodeVariableReferenceExpression cter = new CodeVariableReferenceExpression ("__container");
1080                                                 CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression (cter, "FindControl");
1081                                                 invoke.Parameters.Add (new CodePrimitiveExpression (binding.ControlId));
1082
1083                                                 assign = new CodeAssignStatement ();
1084                                                 control = new CodeVariableReferenceExpression (binding.ControlId);
1085                                                 assign.Left = control;
1086                                                 assign.Right = new CodeCastExpression (binding.ControlType, invoke);
1087                                                 method.Statements.Add (assign);
1088
1089                                                 sif = new CodeConditionStatement ();
1090                                                 sif.Condition = new CodeBinaryOperatorExpression (control, CodeBinaryOperatorType.IdentityInequality, new CodePrimitiveExpression (null));
1091
1092                                                 method.Statements.Add (sif);
1093
1094                                                 hash [binding.ControlId] = sif;
1095                                         }
1096
1097                                         sif = (CodeConditionStatement) hash [binding.ControlId];
1098                                         control = new CodeVariableReferenceExpression (binding.ControlId);
1099                                         assign = new CodeAssignStatement ();
1100                                         assign.Left = new CodeIndexerExpression (tableExp, new CodePrimitiveExpression (binding.FieldName));
1101                                         assign.Right = new CodePropertyReferenceExpression (control, binding.ControlProperty);
1102                                         sif.TrueStatements.Add (assign);
1103                                 }
1104                         }
1105
1106                         method.Statements.Add (new CodeMethodReturnStatement (tableExp));
1107                         return method.Name;
1108                 }
1109
1110                 void AddContentTemplateInvocation (ContentBuilderInternal cbuilder, CodeMemberMethod method, string methodName)
1111                 {
1112                         CodeDelegateCreateExpression newBuild = new CodeDelegateCreateExpression (
1113                                 new CodeTypeReference (typeof (BuildTemplateMethod)), thisRef, methodName);
1114
1115                         CodeObjectCreateExpression newCompiled = new CodeObjectCreateExpression (typeof (CompiledTemplateBuilder));
1116                         newCompiled.Parameters.Add (newBuild);
1117
1118                         CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression (thisRef, "AddContentTemplate");
1119                         invoke.Parameters.Add (new CodePrimitiveExpression (cbuilder.ContentPlaceHolderID));
1120                         invoke.Parameters.Add (newCompiled);
1121
1122                         method.Statements.Add (invoke);
1123                 }
1124 #endif
1125
1126                 void AddCodeRender (ControlBuilder parent, CodeRenderBuilder cr)
1127                 {
1128                         if (cr.Code == null || cr.Code.Trim () == "")
1129                                 return;
1130
1131                         if (!cr.IsAssign) {
1132                                 CodeSnippetStatement code = new CodeSnippetStatement (cr.Code);
1133                                 parent.renderMethod.Statements.Add (code);
1134                                 return;
1135                         }
1136
1137                         CodeMethodInvokeExpression expr = new CodeMethodInvokeExpression ();
1138                         expr.Method = new CodeMethodReferenceExpression (
1139                                                         new CodeArgumentReferenceExpression ("__output"),
1140                                                         "Write");
1141
1142                         expr.Parameters.Add (new CodeSnippetExpression (cr.Code));
1143                         parent.renderMethod.Statements.Add (expr);
1144                 }
1145
1146                 static Type GetContainerType (ControlBuilder builder)
1147                 {
1148                         TemplateBuilder tb = builder as TemplateBuilder;
1149                         if (tb != null && tb.ContainerType != null)
1150                                 return tb.ContainerType;
1151 #if NET_2_0
1152                         return builder.BindingContainerType;
1153 #else
1154                         Type type = builder.BindingContainerType;
1155
1156                         PropertyInfo prop = type.GetProperty ("Items", noCaseFlags & ~BindingFlags.NonPublic);
1157                         if (prop == null)
1158                                 return type;
1159
1160                         Type ptype = prop.PropertyType;
1161                         if (!typeof (ICollection).IsAssignableFrom (ptype))
1162                                 return type;
1163
1164                         prop = ptype.GetProperty ("Item", noCaseFlags & ~BindingFlags.NonPublic);
1165                         if (prop == null)
1166                                 return type;
1167
1168                         return prop.PropertyType;
1169 #endif
1170                 }
1171
1172                 CodeMemberMethod CreateDBMethod (string name, Type container, Type target)
1173                 {
1174                         CodeMemberMethod method = new CodeMemberMethod ();
1175                         method.Attributes = MemberAttributes.Public | MemberAttributes.Final;
1176                         method.Name = name;
1177                         method.Parameters.Add (new CodeParameterDeclarationExpression (typeof (object), "sender"));
1178                         method.Parameters.Add (new CodeParameterDeclarationExpression (typeof (EventArgs), "e"));
1179
1180                         CodeTypeReference containerRef = new CodeTypeReference (container);
1181                         CodeTypeReference targetRef = new CodeTypeReference (target);
1182
1183                         CodeVariableDeclarationStatement decl = new CodeVariableDeclarationStatement();
1184                         decl.Name = "Container";
1185                         decl.Type = containerRef;
1186                         method.Statements.Add (decl);
1187
1188                         decl = new CodeVariableDeclarationStatement();
1189                         decl.Name = "target";
1190                         decl.Type = targetRef;
1191                         method.Statements.Add (decl);
1192
1193                         CodeVariableReferenceExpression targetExpr = new CodeVariableReferenceExpression ("target");
1194                         CodeAssignStatement assign = new CodeAssignStatement ();
1195                         assign.Left = targetExpr;
1196                         assign.Right = new CodeCastExpression (targetRef, new CodeArgumentReferenceExpression ("sender"));
1197                         method.Statements.Add (assign);
1198
1199                         assign = new CodeAssignStatement ();
1200                         assign.Left = new CodeVariableReferenceExpression ("Container");
1201                         assign.Right = new CodeCastExpression (containerRef,
1202                                                 new CodePropertyReferenceExpression (targetExpr, "BindingContainer"));
1203                         method.Statements.Add (assign);
1204
1205                         return method;
1206                 }
1207
1208                 void AddDataBindingLiteral (ControlBuilder builder, DataBindingBuilder db)
1209                 {
1210                         if (db.Code == null || db.Code.Trim () == "")
1211                                 return;
1212
1213                         EnsureID (db);
1214                         CreateField (db, false);
1215
1216                         string dbMethodName = "__DataBind_" + db.ID;
1217                         // Add the method that builds the DataBoundLiteralControl
1218                         InitMethod (db, false, false);
1219                         CodeMemberMethod method = db.method;
1220                         AddEventAssign (method, "DataBinding", typeof (EventHandler), dbMethodName);
1221                         method.Statements.Add (new CodeMethodReturnStatement (ctrlVar));
1222
1223                         // Add the DataBind handler
1224                         method = CreateDBMethod (dbMethodName, GetContainerType (builder), typeof (DataBoundLiteralControl));
1225
1226                         CodeVariableReferenceExpression targetExpr = new CodeVariableReferenceExpression ("target");
1227                         CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression ();
1228                         invoke.Method = new CodeMethodReferenceExpression (targetExpr, "SetDataBoundString");
1229                         invoke.Parameters.Add (new CodePrimitiveExpression (0));
1230
1231                         CodeMethodInvokeExpression tostring = new CodeMethodInvokeExpression ();
1232                         tostring.Method = new CodeMethodReferenceExpression (
1233                                                         new CodeTypeReferenceExpression (typeof (Convert)),
1234                                                         "ToString");
1235                         tostring.Parameters.Add (new CodeSnippetExpression (db.Code));
1236                         invoke.Parameters.Add (tostring);
1237                         method.Statements.Add (invoke);
1238
1239                         mainClass.Members.Add (method);
1240
1241                         AddChildCall (builder, db);
1242                 }
1243
1244                 void FlushText (ControlBuilder builder, StringBuilder sb)
1245                 {
1246                         if (sb.Length > 0) {
1247                                 AddLiteralSubObject (builder, sb.ToString ());
1248                                 sb.Length = 0;
1249                         }
1250                 }
1251
1252                 protected void CreateControlTree (ControlBuilder builder, bool inTemplate, bool childrenAsProperties)
1253                 {
1254                         EnsureID (builder);
1255                         bool isTemplate = (typeof (TemplateBuilder).IsAssignableFrom (builder.GetType ()));
1256                         if (!isTemplate && !inTemplate) {
1257                                 CreateField (builder, true);
1258                         } else if (!isTemplate) {
1259                                 builder.ID = builder.GetNextID (null);
1260                                 CreateField (builder, false);
1261                         }
1262
1263                         InitMethod (builder, isTemplate, childrenAsProperties);
1264                         if (!isTemplate || builder.GetType () == typeof (RootBuilder))
1265                                 CreateAssignStatementsFromAttributes (builder);
1266
1267                         if (builder.Children != null && builder.Children.Count > 0) {
1268                                 ArrayList templates = null;
1269
1270                                 StringBuilder sb = new StringBuilder ();
1271                                 foreach (object b in builder.Children) {
1272
1273                                         if (b is string) {
1274                                                 sb.Append ((string) b);
1275                                                 continue;
1276                                         }
1277
1278                                         FlushText (builder, sb);
1279                                         if (b is ObjectTagBuilder) {
1280                                                 ProcessObjectTag ((ObjectTagBuilder) b);
1281                                                 continue;
1282                                         }
1283
1284                                         StringPropertyBuilder pb = b as StringPropertyBuilder;
1285                                         if (pb != null){
1286                                                 if (pb.Children != null && pb.Children.Count > 0) {
1287                                                         StringBuilder asb = new StringBuilder ();
1288                                                         foreach (string s in pb.Children)
1289                                                                 asb.Append (s);
1290                                                         CodeMemberMethod method = builder.method;
1291                                                         CodeAssignStatement assign = new CodeAssignStatement ();
1292                                                         assign.Left = new CodePropertyReferenceExpression (ctrlVar, pb.PropertyName);
1293                                                         assign.Right = new CodePrimitiveExpression (asb.ToString ());
1294                                                         method.Statements.Add (assign);
1295                                                 }
1296                                                 continue;
1297                                         }
1298
1299 #if NET_2_0
1300                                         if (b is ContentBuilderInternal) {
1301                                                 ContentBuilderInternal cb = (ContentBuilderInternal) b;
1302                                                 CreateControlTree (cb, false, true);
1303                                                 AddContentTemplateInvocation (cb, builder.method, cb.method.Name);
1304                                                 continue;
1305                                         }
1306 #endif
1307
1308                                         if (b is TemplateBuilder) {
1309                                                 if (templates == null)
1310                                                         templates = new ArrayList ();
1311
1312                                                 templates.Add (b);
1313                                                 continue;
1314                                         }
1315
1316                                         if (b is CodeRenderBuilder) {
1317                                                 AddCodeRender (builder, (CodeRenderBuilder) b);
1318                                                 continue;
1319                                         }
1320
1321                                         if (b is DataBindingBuilder) {
1322                                                 AddDataBindingLiteral (builder, (DataBindingBuilder) b);
1323                                                 continue;
1324                                         }
1325
1326                                         if (b is ControlBuilder) {
1327                                                 ControlBuilder child = (ControlBuilder) b;
1328                                                 CreateControlTree (child, inTemplate, builder.ChildrenAsProperties);
1329                                                 AddChildCall (builder, child);
1330                                                 continue;
1331                                         }
1332
1333                                         throw new Exception ("???");
1334                                 }
1335
1336                                 FlushText (builder, sb);
1337
1338                                 if (templates != null) {
1339                                         foreach (TemplateBuilder b in templates) {
1340                                                 CreateControlTree (b, true, false);
1341 #if NET_2_0
1342                                                 if (b.BindingDirection == BindingDirection.TwoWay) {
1343                                                         string extractMethod = CreateExtractValuesMethod (b);
1344                                                         AddBindableTemplateInvocation (builder.method, b.TagName, b.method.Name, extractMethod);
1345                                                 }
1346                                                 else
1347 #endif
1348                                                 AddTemplateInvocation (builder.method, b.TagName, b.method.Name);
1349                                         }
1350                                 }
1351
1352                         }
1353
1354                         if (builder.defaultPropertyBuilder != null) {
1355                                 ControlBuilder b = builder.defaultPropertyBuilder;
1356                                 CreateControlTree (b, false, true);
1357                                 AddChildCall (builder, b);
1358                         }
1359
1360                         if (builder.HasAspCode) {
1361                                 CodeMethodReferenceExpression m = new CodeMethodReferenceExpression ();
1362                                 m.TargetObject = thisRef;
1363                                 m.MethodName = builder.renderMethod.Name;
1364
1365                                 CodeDelegateCreateExpression create = new CodeDelegateCreateExpression ();
1366                                 create.DelegateType = new CodeTypeReference (typeof (RenderMethod));
1367                                 create.TargetObject = thisRef;
1368                                 create.MethodName = builder.renderMethod.Name;
1369
1370                                 CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression ();
1371                                 invoke.Method = new CodeMethodReferenceExpression (ctrlVar, "SetRenderMethodDelegate");
1372                                 invoke.Parameters.Add (create);
1373
1374                                 builder.methodStatements.Add (invoke);
1375                         }
1376
1377                         if (!childrenAsProperties && typeof (Control).IsAssignableFrom (builder.ControlType))
1378                                 builder.method.Statements.Add (new CodeMethodReturnStatement (ctrlVar));
1379
1380 #if NET_2_0
1381                         if (builder is RootBuilder)
1382                                 if (!String.IsNullOrEmpty (parser.MetaResourceKey))
1383                                         AssignPropertiesFromResources (builder.method, parser.BaseType, parser.MetaResourceKey);
1384 #endif
1385                 }
1386
1387                 protected internal override void CreateMethods ()
1388                 {
1389                         base.CreateMethods ();
1390
1391                         CreateProperties ();
1392                         CreateControlTree (parser.RootBuilder, false, false);
1393                         CreateFrameworkInitializeMethod ();
1394                 }
1395
1396                 void CallBaseFrameworkInitialize (CodeMemberMethod method)
1397                 {
1398                         CodeBaseReferenceExpression baseRef = new CodeBaseReferenceExpression ();
1399                         CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression (baseRef, "FrameworkInitialize");
1400                         method.Statements.Add (invoke);
1401                 }
1402
1403                 void CreateFrameworkInitializeMethod ()
1404                 {
1405                         CodeMemberMethod method = new CodeMemberMethod ();
1406                         method.Name = "FrameworkInitialize";
1407                         method.Attributes = MemberAttributes.Family | MemberAttributes.Override;
1408                         PrependStatementsToFrameworkInitialize (method);
1409                         CallBaseFrameworkInitialize (method);
1410                         AppendStatementsToFrameworkInitialize (method);
1411                         mainClass.Members.Add (method);
1412                 }
1413
1414                 protected virtual void PrependStatementsToFrameworkInitialize (CodeMemberMethod method)
1415                 {
1416                 }
1417
1418                 protected virtual void AppendStatementsToFrameworkInitialize (CodeMemberMethod method)
1419                 {
1420                         if (!parser.EnableViewState) {
1421                                 CodeAssignStatement stmt = new CodeAssignStatement ();
1422                                 stmt.Left = new CodePropertyReferenceExpression (thisRef, "EnableViewState");
1423                                 stmt.Right = new CodePrimitiveExpression (false);
1424                                 method.Statements.Add (stmt);
1425                         }
1426
1427                         CodeMethodReferenceExpression methodExpr;
1428                         methodExpr = new CodeMethodReferenceExpression (thisRef, "__BuildControlTree");
1429                         CodeMethodInvokeExpression expr = new CodeMethodInvokeExpression (methodExpr, thisRef);
1430                         method.Statements.Add (new CodeExpressionStatement (expr));
1431                 }
1432
1433                 protected override void AddApplicationAndSessionObjects ()
1434                 {
1435                         foreach (ObjectTagBuilder tag in GlobalAsaxCompiler.ApplicationObjects) {
1436                                 CreateFieldForObject (tag.Type, tag.ObjectID);
1437                                 CreateApplicationOrSessionPropertyForObject (tag.Type, tag.ObjectID, true, false);
1438                         }
1439
1440                         foreach (ObjectTagBuilder tag in GlobalAsaxCompiler.SessionObjects) {
1441                                 CreateApplicationOrSessionPropertyForObject (tag.Type, tag.ObjectID, false, false);
1442                         }
1443                 }
1444
1445                 protected void ProcessObjectTag (ObjectTagBuilder tag)
1446                 {
1447                         string fieldName = CreateFieldForObject (tag.Type, tag.ObjectID);
1448                         CreatePropertyForObject (tag.Type, tag.ObjectID, fieldName, false);
1449                 }
1450
1451                 void CreateProperties ()
1452                 {
1453                         if (!parser.AutoEventWireup) {
1454                                 CreateAutoEventWireup ();
1455                         } else {
1456                                 CreateAutoHandlers ();
1457                         }
1458
1459                         CreateApplicationInstance ();
1460                 }
1461
1462                 void CreateApplicationInstance ()
1463                 {
1464                         CodeMemberProperty prop = new CodeMemberProperty ();
1465                         Type appType = typeof (HttpApplication);
1466                         prop.Type = new CodeTypeReference (appType);
1467                         prop.Name = "ApplicationInstance";
1468                         prop.Attributes = MemberAttributes.Family | MemberAttributes.Final;
1469
1470                         CodePropertyReferenceExpression propRef = new CodePropertyReferenceExpression (thisRef, "Context");
1471
1472                         propRef = new CodePropertyReferenceExpression (propRef, "ApplicationInstance");
1473
1474                         CodeCastExpression cast = new CodeCastExpression (appType.FullName, propRef);
1475                         prop.GetStatements.Add (new CodeMethodReturnStatement (cast));
1476 #if NET_2_0
1477                         if (partialClass != null)
1478                                 partialClass.Members.Add (prop);
1479                         else
1480 #endif
1481                         mainClass.Members.Add (prop);
1482                 }
1483
1484                 void CreateAutoHandlers ()
1485                 {
1486                         // Create AutoHandlers property
1487                         CodeMemberProperty prop = new CodeMemberProperty ();
1488                         prop.Type = new CodeTypeReference (typeof (int));
1489                         prop.Name = "AutoHandlers";
1490                         prop.Attributes = MemberAttributes.Family | MemberAttributes.Override;
1491
1492                         CodeMethodReturnStatement ret = new CodeMethodReturnStatement ();
1493                         CodeFieldReferenceExpression fldRef ;
1494                         fldRef = new CodeFieldReferenceExpression (mainClassExpr, "__autoHandlers");
1495                         ret.Expression = fldRef;
1496                         prop.GetStatements.Add (ret);
1497                         prop.SetStatements.Add (new CodeAssignStatement (fldRef, new CodePropertySetValueReferenceExpression ()));
1498
1499 #if NET_2_0
1500                         CodeAttributeDeclaration attr = new CodeAttributeDeclaration ("System.Obsolete");
1501                         prop.CustomAttributes.Add (attr);
1502 #endif
1503
1504                         mainClass.Members.Add (prop);
1505
1506                         // Add the __autoHandlers field
1507                         CodeMemberField fld = new CodeMemberField (typeof (int), "__autoHandlers");
1508                         fld.Attributes = MemberAttributes.Private | MemberAttributes.Static;
1509                         mainClass.Members.Add (fld);
1510                 }
1511
1512                 void CreateAutoEventWireup ()
1513                 {
1514                         // The getter returns false
1515                         CodeMemberProperty prop = new CodeMemberProperty ();
1516                         prop.Type = new CodeTypeReference (typeof (bool));
1517                         prop.Name = "SupportAutoEvents";
1518                         prop.Attributes = MemberAttributes.Family | MemberAttributes.Override;
1519                         prop.GetStatements.Add (new CodeMethodReturnStatement (new CodePrimitiveExpression (false)));
1520                         mainClass.Members.Add (prop);
1521                 }
1522
1523 #if NET_2_0
1524                 protected virtual string HandleUrlProperty (string str, MemberInfo member)
1525                 {
1526                         return str;
1527                 }
1528 #endif
1529
1530                 CodeExpression GetExpressionFromString (Type type, string str, MemberInfo member)
1531                 {
1532 #if NET_2_0
1533                         bool wasNullable = false;
1534
1535                         if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(Nullable<>)) {
1536                                 Type[] types = type.GetGenericArguments();
1537                                 type = types[0]; // we're interested only in the first type here
1538                                 wasNullable = true;
1539                         }
1540 #endif
1541
1542                         if (type == typeof (string)) {
1543 #if NET_2_0
1544                                 object[] urlAttr = member.GetCustomAttributes (typeof (UrlPropertyAttribute), true);
1545                                 if (urlAttr.Length != 0)
1546                                         str = HandleUrlProperty (str, member);
1547 #endif
1548                                 return new CodePrimitiveExpression (str);
1549                         }
1550
1551                         if (type == typeof (bool)) {
1552                                 if (str == null || str == "" || InvariantCompareNoCase (str, "true"))
1553                                         return new CodePrimitiveExpression (true);
1554                                 else if (InvariantCompareNoCase (str, "false"))
1555                                         return new CodePrimitiveExpression (false);
1556 #if NET_2_0
1557                                 else if (wasNullable && InvariantCompareNoCase(str, "null"))
1558                                         return new CodePrimitiveExpression (null);
1559 #endif
1560                                 else
1561                                         throw new ParseException (currentLocation,
1562                                                         "Value '" + str  + "' is not a valid boolean.");
1563                         }
1564
1565                         if (str == null)
1566                                 return new CodePrimitiveExpression (null);
1567
1568                         if (type.IsPrimitive)
1569                                 return new CodePrimitiveExpression (Convert.ChangeType (str, type, CultureInfo.InvariantCulture));
1570
1571                         if (type == typeof (string [])) {
1572                                 string [] subs = str.Split (',');
1573                                 CodeArrayCreateExpression expr = new CodeArrayCreateExpression ();
1574                                 expr.CreateType = new CodeTypeReference (typeof (string));
1575                                 foreach (string v in subs) {
1576                                         expr.Initializers.Add (new CodePrimitiveExpression (v.Trim ()));
1577                                 }
1578
1579                                 return expr;
1580                         }
1581
1582                         if (type == typeof (Color)){
1583                                 if (colorConverter == null)
1584                                         colorConverter = TypeDescriptor.GetConverter (typeof (Color));
1585
1586                                 if (str.Trim().Length == 0) {
1587                                         CodeTypeReferenceExpression ft = new CodeTypeReferenceExpression (typeof (Color));
1588                                         return new CodeFieldReferenceExpression (ft, "Empty");
1589                                 }
1590
1591                                 Color c;
1592                                 try {
1593                                         if (str.IndexOf (',') == -1) {
1594                                                 c = (Color) colorConverter.ConvertFromString (str);
1595                                         } else {
1596                                                 int [] argb = new int [4];
1597                                                 argb [0] = 255;
1598
1599                                                 string [] parts = str.Split (',');
1600                                                 int length = parts.Length;
1601                                                 if (length < 3)
1602                                                         throw new Exception ();
1603
1604                                                 int basei = (length == 4) ? 0 : 1;
1605                                                 for (int i = length - 1; i >= 0; i--) {
1606                                                         argb [basei + i] = (int) Byte.Parse (parts [i]);
1607                                                 }
1608                                                 c = Color.FromArgb (argb [0], argb [1], argb [2], argb [3]);
1609                                         }
1610                                 } catch (Exception e){
1611                                         // Hack: "LightGrey" is accepted, but only for ASP.NET, as the
1612                                         // TypeConverter for Color fails to ConvertFromString.
1613                                         // Hence this hack...
1614                                         if (InvariantCompareNoCase ("LightGrey", str)) {
1615                                                 c = Color.LightGray;
1616                                         } else {
1617                                                 throw new ParseException (currentLocation,
1618                                                         "Color " + str + " is not a valid color.", e);
1619                                         }
1620                                 }
1621
1622                                 if (c.IsKnownColor){
1623                                         CodeFieldReferenceExpression expr = new CodeFieldReferenceExpression ();
1624                                         if (c.IsSystemColor)
1625                                                 type = typeof (SystemColors);
1626
1627                                         expr.TargetObject = new CodeTypeReferenceExpression (type);
1628                                         expr.FieldName = c.Name;
1629                                         return expr;
1630                                 } else {
1631                                         CodeMethodReferenceExpression m = new CodeMethodReferenceExpression ();
1632                                         m.TargetObject = new CodeTypeReferenceExpression (type);
1633                                         m.MethodName = "FromArgb";
1634                                         CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression (m);
1635                                         invoke.Parameters.Add (new CodePrimitiveExpression (c.A));
1636                                         invoke.Parameters.Add (new CodePrimitiveExpression (c.R));
1637                                         invoke.Parameters.Add (new CodePrimitiveExpression (c.G));
1638                                         invoke.Parameters.Add (new CodePrimitiveExpression (c.B));
1639                                         return invoke;
1640                                 }
1641                         }
1642
1643                         TypeConverter converter = TypeDescriptor.GetProperties (member.DeclaringType) [member.Name].Converter;
1644
1645                         if (converter != null && converter.CanConvertFrom (typeof (string))) {
1646                                 object value = converter.ConvertFromInvariantString (str);
1647
1648                                 if (converter.CanConvertTo (typeof (InstanceDescriptor))) {
1649                                         InstanceDescriptor idesc = (InstanceDescriptor) converter.ConvertTo (value, typeof(InstanceDescriptor));
1650                                         return GenerateInstance (idesc, true);
1651                                 }
1652
1653                                 CodeExpression exp = GenerateObjectInstance (value, false);
1654                                 if (exp != null) return exp;
1655
1656                                 CodeMethodReferenceExpression m = new CodeMethodReferenceExpression ();
1657                                 m.TargetObject = new CodeTypeReferenceExpression (typeof (TypeDescriptor));
1658                                 m.MethodName = "GetConverter";
1659                                 CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression (m);
1660                                 CodeTypeReference tref = new CodeTypeReference (type);
1661                                 invoke.Parameters.Add (new CodeTypeOfExpression (tref));
1662
1663                                 invoke = new CodeMethodInvokeExpression (invoke, "ConvertFrom");
1664                                 invoke.Parameters.Add (new CodePrimitiveExpression (str));
1665
1666                                 return new CodeCastExpression (tref, invoke);
1667                         }
1668
1669                         Console.WriteLine ("Unknown type: " + type + " value: " + str);
1670
1671                         return new CodePrimitiveExpression (str);
1672                 }
1673
1674                 CodeExpression GenerateInstance (InstanceDescriptor idesc, bool throwOnError)
1675                 {
1676                         CodeExpression[] parameters = new CodeExpression [idesc.Arguments.Count];
1677                         int n = 0;
1678                         foreach (object ob in idesc.Arguments) {
1679                                 CodeExpression exp = GenerateObjectInstance (ob, throwOnError);
1680                                 if (exp == null) return null;
1681                                 parameters [n++] = exp;
1682                         }
1683
1684                         switch (idesc.MemberInfo.MemberType) {
1685                         case MemberTypes.Constructor:
1686                                 CodeTypeReference tob = new CodeTypeReference (idesc.MemberInfo.DeclaringType);
1687                                 return new CodeObjectCreateExpression (tob, parameters);
1688
1689                         case MemberTypes.Method:
1690                                 CodeTypeReferenceExpression mt = new CodeTypeReferenceExpression (idesc.MemberInfo.DeclaringType);
1691                                 return new CodeMethodInvokeExpression (mt, idesc.MemberInfo.Name, parameters);
1692
1693                         case MemberTypes.Field:
1694                                 CodeTypeReferenceExpression ft = new CodeTypeReferenceExpression (idesc.MemberInfo.DeclaringType);
1695                                 return new CodeFieldReferenceExpression (ft, idesc.MemberInfo.Name);
1696
1697                         case MemberTypes.Property:
1698                                 CodeTypeReferenceExpression pt = new CodeTypeReferenceExpression (idesc.MemberInfo.DeclaringType);
1699                                 return new CodePropertyReferenceExpression (pt, idesc.MemberInfo.Name);
1700                         }
1701                         throw new ParseException (currentLocation, "Invalid instance type.");
1702                 }
1703
1704                 CodeExpression GenerateObjectInstance (object value, bool throwOnError)
1705                 {
1706                         if (value == null)
1707                                 return new CodePrimitiveExpression (null);
1708
1709                         Type t = value.GetType();
1710                         if (t.IsPrimitive || value is string)
1711                                 return new CodePrimitiveExpression (value);
1712
1713                         if (t.IsArray) {
1714                                 Array ar = (Array) value;
1715                                 CodeExpression[] items = new CodeExpression [ar.Length];
1716                                 for (int n=0; n<ar.Length; n++) {
1717                                         CodeExpression exp = GenerateObjectInstance (ar.GetValue (n), throwOnError);
1718                                         if (exp == null) return null;
1719                                         items [n] = exp;
1720                                 }
1721                                 return new CodeArrayCreateExpression (new CodeTypeReference (t), items);
1722                         }
1723
1724                         TypeConverter converter = TypeDescriptor.GetConverter (t);
1725                         if (converter != null && converter.CanConvertTo (typeof (InstanceDescriptor))) {
1726                                 InstanceDescriptor idesc = (InstanceDescriptor) converter.ConvertTo (value, typeof(InstanceDescriptor));
1727                                 return GenerateInstance (idesc, throwOnError);
1728                         }
1729
1730                         InstanceDescriptor desc = GetDefaultInstanceDescriptor (value);
1731                         if (desc != null) return GenerateInstance (desc, throwOnError);
1732
1733                         if (throwOnError)
1734                                 throw new ParseException (currentLocation, "Cannot generate an instance for the type: " + t);
1735                         else
1736                                 return null;
1737                 }
1738
1739                 InstanceDescriptor GetDefaultInstanceDescriptor (object value)
1740                 {
1741                         if (value is System.Web.UI.WebControls.Unit) {
1742                                 System.Web.UI.WebControls.Unit s = (System.Web.UI.WebControls.Unit) value;
1743                                 ConstructorInfo c = typeof(System.Web.UI.WebControls.Unit).GetConstructor (
1744                                         BindingFlags.Instance | BindingFlags.Public,
1745                                         null,
1746                                         new Type[] {typeof(double), typeof(System.Web.UI.WebControls.UnitType)},
1747                                         null);
1748
1749                                 return new InstanceDescriptor (c, new object[] {s.Value, s.Type});
1750                         }
1751
1752                         if (value is System.Web.UI.WebControls.FontUnit) {
1753                                 System.Web.UI.WebControls.FontUnit s = (System.Web.UI.WebControls.FontUnit) value;
1754
1755                                 Type cParamType = null;
1756                                 object cParam = null;
1757
1758                                 switch (s.Type) {
1759                                         case FontSize.AsUnit:
1760                                         case FontSize.NotSet:
1761                                                 cParamType = typeof (System.Web.UI.WebControls.Unit);
1762                                                 cParam = s.Unit;
1763                                                 break;
1764
1765                                         default:
1766                                                 cParamType = typeof (string);
1767                                                 cParam = s.Type.ToString ();
1768                                                 break;
1769                                 }
1770
1771                                 ConstructorInfo c = typeof(System.Web.UI.WebControls.FontUnit).GetConstructor (
1772                                         BindingFlags.Instance | BindingFlags.Public,
1773                                         null,
1774                                         new Type[] {cParamType},
1775                                         null);
1776                                 if (c != null)
1777                                         return new InstanceDescriptor (c, new object[] {cParam});
1778                         }
1779                         return null;
1780                 }
1781         }
1782 }
1783
1784
1785