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
  92                         MemberAttributes ma = MemberAttributes.Family;
  93                         currentLocation = builder.location;
  94                         if (check && CheckBaseFieldOrProperty (builder.ID, builder.ControlType, ref ma))
  95                                 return; // The field or property already exists in a base class and is accesible.
  96
  97                         CodeMemberField field;
  98                         field = new CodeMemberField (builder.ControlType.FullName, builder.ID);
  99                         field.Attributes = ma;
 100 #if NET_2_0
 101                         field.Type.Options |= CodeTypeReferenceOptions.GlobalReference;
 102
 103                         if (partialClass != null)
 104                                 partialClass.Members.Add (field);
 105                         else
 106 #endif
 107                                 mainClass.Members.Add (field);
 108                 }
 109
 110                 bool CheckBaseFieldOrProperty (string id, Type type, ref MemberAttributes ma)
 111                 {
 112                         FieldInfo fld = parser.BaseType.GetField (id, noCaseFlags);
 113
 114                         Type other = null;
 115                         if (fld == null || fld.IsPrivate) {
 116                                 PropertyInfo prop = parser.BaseType.GetProperty (id, noCaseFlags);
 117                                 if (prop != null) {
 118                                         MethodInfo setm = prop.GetSetMethod (true);
 119                                         if (setm != null)
 120                                                 other = prop.PropertyType;
 121                                 }
 122                         } else {
 123                                 other = fld.FieldType;
 124                         }
 125
 126                         if (other == null)
 127                                 return false;
 128
 129                         if (!other.IsAssignableFrom (type)) {
 130 #if NET_2_0
 131                                 ma |= MemberAttributes.New;
 132                                 return false;
 133 #else
 134                                 string msg = String.Format ("The base class includes the field '{0}', but its " +
 135                                                             "type '{1}' is not compatible with {2}",
 136                                                             id, other, type);
 137                                 throw new ParseException (currentLocation, msg);
 138 #endif
 139                         }
 140
 141                         return true;
 142                 }
 143
 144                 void AddParsedSubObjectStmt (ControlBuilder builder, CodeExpression expr)
 145                 {
 146                         if (!builder.haveParserVariable) {
 147                                 CodeVariableDeclarationStatement p = new CodeVariableDeclarationStatement();
 148                                 p.Name = "__parser";
 149                                 p.Type = new CodeTypeReference (typeof (IParserAccessor));
 150                                 p.InitExpression = new CodeCastExpression (typeof (IParserAccessor), ctrlVar);
 151                                 builder.methodStatements.Add (p);
 152                                 builder.haveParserVariable = true;
 153                         }
 154
 155                         CodeVariableReferenceExpression var = new CodeVariableReferenceExpression ("__parser");
 156                         CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression (var, "AddParsedSubObject");
 157                         invoke.Parameters.Add (expr);
 158                         builder.methodStatements.Add (invoke);
 159                 }
 160
 161                 void InitMethod (ControlBuilder builder, bool isTemplate, bool childrenAsProperties)
 162                 {
 163                         string tailname = ((builder is RootBuilder) ? "Tree" : ("_" + builder.ID));
 164                         CodeMemberMethod method = new CodeMemberMethod ();
 165                         builder.method = method;
 166                         builder.methodStatements = method.Statements;
 167
 168                         method.Name = "__BuildControl" + tailname;
 169                         method.Attributes = MemberAttributes.Private | MemberAttributes.Final;
 170                         Type type = builder.ControlType;
 171
 172                         /* in the case this is the __BuildControlTree
 173                          * method, allow subclasses to insert control
 174                          * specific code. */
 175                         if (builder is RootBuilder) {
 176 #if NET_2_0
 177                                 SetCustomAttributes (method);
 178 #endif
 179                                 AddStatementsToInitMethod (method);
 180                         }
 181
 182                         if (builder.HasAspCode) {
 183                                 CodeMemberMethod renderMethod = new CodeMemberMethod ();
 184                                 builder.renderMethod = renderMethod;
 185                                 renderMethod.Name = "__Render" + tailname;
 186                                 renderMethod.Attributes = MemberAttributes.Private | MemberAttributes.Final;
 187                                 CodeParameterDeclarationExpression arg1 = new CodeParameterDeclarationExpression ();
 188                                 arg1.Type = new CodeTypeReference (typeof (HtmlTextWriter));
 189                                 arg1.Name = "__output";
 190                                 CodeParameterDeclarationExpression arg2 = new CodeParameterDeclarationExpression ();
 191                                 arg2.Type = new CodeTypeReference (typeof (Control));
 192                                 arg2.Name = "parameterContainer";
 193                                 renderMethod.Parameters.Add (arg1);
 194                                 renderMethod.Parameters.Add (arg2);
 195                                 mainClass.Members.Add (renderMethod);
 196                         }
 197
 198                         if (childrenAsProperties || builder.ControlType == null) {
 199                                 string typeString;
 200                                 if (builder is RootBuilder)
 201                                         typeString = parser.ClassName;
 202                                 else {
 203                                         if (builder.ControlType != null && builder.isProperty &&
 204                                             !typeof (ITemplate).IsAssignableFrom (builder.ControlType))
 205                                                 typeString = builder.ControlType.FullName;
 206                                         else
 207                                                 typeString = "System.Web.UI.Control";
 208                                 }
 209
 210                                 method.Parameters.Add (new CodeParameterDeclarationExpression (typeString, "__ctrl"));
 211                         } else {
 212
 213                                 if (typeof (Control).IsAssignableFrom (type))
 214                                         method.ReturnType = new CodeTypeReference (typeof (Control));
 215
 216                                 // _ctrl = new $controlType ($parameters);
 217                                 //
 218                                 CodeObjectCreateExpression newExpr = new CodeObjectCreateExpression (type);
 219
 220                                 object [] atts = type.GetCustomAttributes (typeof (ConstructorNeedsTagAttribute), true);
 221                                 if (atts != null && atts.Length > 0) {
 222                                         ConstructorNeedsTagAttribute att = (ConstructorNeedsTagAttribute) atts [0];
 223                                         if (att.NeedsTag)
 224                                                 newExpr.Parameters.Add (new CodePrimitiveExpression (builder.TagName));
 225                                 } else if (builder is DataBindingBuilder) {
 226                                         newExpr.Parameters.Add (new CodePrimitiveExpression (0));
 227                                         newExpr.Parameters.Add (new CodePrimitiveExpression (1));
 228                                 }
 229
 230                                 method.Statements.Add (new CodeVariableDeclarationStatement (builder.ControlType, "__ctrl"));
 231                                 CodeAssignStatement assign = new CodeAssignStatement ();
 232                                 assign.Left = ctrlVar;
 233                                 assign.Right = newExpr;
 234                                 method.Statements.Add (assign);
 235
 236                                 // this.$builderID = _ctrl;
 237                                 //
 238                                 CodeFieldReferenceExpression builderID = new CodeFieldReferenceExpression ();
 239                                 builderID.TargetObject = thisRef;
 240                                 builderID.FieldName = builder.ID;
 241                                 assign = new CodeAssignStatement ();
 242                                 assign.Left = builderID;
 243                                 assign.Right = ctrlVar;
 244                                 method.Statements.Add (assign);
 245                                 if (typeof (UserControl).IsAssignableFrom (type)) {
 246                                         CodeMethodReferenceExpression mref = new CodeMethodReferenceExpression ();
 247                                         mref.TargetObject = builderID;
 248                                         mref.MethodName = "InitializeAsUserControl";
 249                                         CodeMethodInvokeExpression initAsControl = new CodeMethodInvokeExpression (mref);
 250                                         initAsControl.Parameters.Add (new CodePropertyReferenceExpression (thisRef, "Page"));
 251                                         method.Statements.Add (initAsControl);
 252                                 }
 253
 254 #if NET_2_0
 255                                 if (builder.ParentTemplateBuilder is System.Web.UI.WebControls.ContentBuilderInternal) {
 256                                         PropertyInfo pi;
 257
 258                                         try {
 259                                                 pi = type.GetProperty ("TemplateControl");
 260                                         } catch (Exception) {
 261                                                 pi = null;
 262                                         }
 263
 264                                         if (pi != null && pi.CanWrite) {
 265                                                 // __ctrl.TemplateControl = this;
 266                                                 assign = new CodeAssignStatement ();
 267                                                 assign.Left = new CodePropertyReferenceExpression (ctrlVar, "TemplateControl");;
 268                                                 assign.Right = thisRef;
 269                                                 method.Statements.Add (assign);
 270                                         }
 271                                 }
 272
 273                                 // _ctrl.SkinID = $value
 274                                 // _ctrl.ApplyStyleSheetSkin (this);
 275                                 //
 276                                 // the SkinID assignment needs to come
 277                                 // before the call to
 278                                 // ApplyStyleSheetSkin, for obvious
 279                                 // reasons.  We skip SkinID in
 280                                 // CreateAssignStatementsFromAttributes
 281                                 // below.
 282                                 //
 283                                 if (builder.attribs != null) {
 284                                         string skinid = builder.attribs ["skinid"] as string;
 285                                         if (skinid != null)
 286                                                 CreateAssignStatementFromAttribute (builder, "skinid");
 287                                 }
 288                                 if (typeof (WebControl).IsAssignableFrom (type)) {
 289                                         CodeMethodInvokeExpression applyStyleSheetSkin = new CodeMethodInvokeExpression (ctrlVar, "ApplyStyleSheetSkin");
 290                                         if (typeof (Page).IsAssignableFrom (parser.BaseType))
 291                                                 applyStyleSheetSkin.Parameters.Add (thisRef);
 292                                         else
 293                                                 applyStyleSheetSkin.Parameters.Add (new CodePropertyReferenceExpression (thisRef, "Page"));
 294                                         method.Statements.Add (applyStyleSheetSkin);
 295                                 }
 296 #endif
 297
 298                                 // process ID here. It should be set before any other attributes are
 299                                 // assigned, since the control code may rely on ID being set. We
 300                                 // skip ID in CreateAssignStatementsFromAttributes
 301                                 if (builder.attribs != null) {
 302                                         string ctl_id = builder.attribs ["id"] as string;
 303                                         if (ctl_id != null && ctl_id != String.Empty)
 304                                                 CreateAssignStatementFromAttribute (builder, "id");
 305                                 }
 306 #if NET_2_0
 307                                 if (typeof (ContentPlaceHolder).IsAssignableFrom (type)) {
 308                                         CodePropertyReferenceExpression prop = new CodePropertyReferenceExpression (thisRef, "ContentPlaceHolders");
 309                                         CodeMethodInvokeExpression addPlaceholder = new CodeMethodInvokeExpression (prop, "Add");
 310                                         addPlaceholder.Parameters.Add (ctrlVar);
 311                                         method.Statements.Add (addPlaceholder);
 312
 313
 314                                         CodeConditionStatement condStatement;
 315
 316                                         // Add the __Template_* field
 317                                         CodeMemberField fld = new CodeMemberField (typeof (ITemplate), "__Template_" + builder.ID);
 318                                         fld.Attributes = MemberAttributes.Private;
 319                                         mainClass.Members.Add (fld);
 320
 321                                         CodeFieldReferenceExpression templateID = new CodeFieldReferenceExpression ();
 322                                         templateID.TargetObject = thisRef;
 323                                         templateID.FieldName = "__Template_" + builder.ID;
 324
 325                                         // if ((this.ContentTemplates != null)) {
 326                                         //      this.__Template_$builder.ID = ((System.Web.UI.ITemplate)(this.ContentTemplates["$builder.ID"]));
 327                                         // }
 328                                         //
 329                                         CodeFieldReferenceExpression contentTemplates = new CodeFieldReferenceExpression ();
 330                                         contentTemplates.TargetObject = thisRef;
 331                                         contentTemplates.FieldName = "ContentTemplates";
 332
 333                                         CodeIndexerExpression indexer = new CodeIndexerExpression ();
 334                                         indexer.TargetObject = new CodePropertyReferenceExpression (thisRef, "ContentTemplates");
 335                                         indexer.Indices.Add (new CodePrimitiveExpression (builder.ID));
 336
 337                                         assign = new CodeAssignStatement ();
 338                                         assign.Left = templateID;
 339                                         assign.Right = new CodeCastExpression (new CodeTypeReference (typeof (ITemplate)), indexer);
 340
 341                                         condStatement = new CodeConditionStatement (new CodeBinaryOperatorExpression (contentTemplates,
 342                                                                                                                       CodeBinaryOperatorType.IdentityInequality,
 343                                                                                                                       new CodePrimitiveExpression (null)),
 344                                                                                     assign);
 345
 346                                         method.Statements.Add (condStatement);
 347
 348                                         // if ((this.__Template_mainContent != null)) {
 349                                         //      this.__Template_mainContent.InstantiateIn(__ctrl);
 350                                         // }
 351                                         // and also set things up such that any additional code ends up in:
 352                                         // else {
 353                                         //      ...
 354                                         // }
 355                                         //
 356                                         CodeMethodReferenceExpression methodRef = new CodeMethodReferenceExpression ();
 357                                         methodRef.TargetObject = templateID;
 358                                         methodRef.MethodName = "InstantiateIn";
 359
 360                                         CodeMethodInvokeExpression instantiateInInvoke;
 361                                         instantiateInInvoke = new CodeMethodInvokeExpression (methodRef, ctrlVar);
 362
 363                                         condStatement = new CodeConditionStatement (new CodeBinaryOperatorExpression (templateID,
 364                                                                                                                       CodeBinaryOperatorType.IdentityInequality,
 365                                                                                                                       new CodePrimitiveExpression (null)),
 366                                                                                     new CodeExpressionStatement (instantiateInInvoke));
 367                                         method.Statements.Add (condStatement);
 368
 369                                         // this is the bit that causes the following stuff to end up in the else { }
 370                                         builder.methodStatements = condStatement.FalseStatements;
 371                                 }
 372 #endif
 373                         }
 374
 375                         mainClass.Members.Add (method);
 376                 }
 377
 378 #if NET_2_0
 379                 void SetCustomAttribute (CodeMemberMethod method, UnknownAttributeDescriptor uad)
 380                 {
 381                         CodeAssignStatement assign = new CodeAssignStatement ();
 382                         assign.Left = new CodePropertyReferenceExpression (
 383                                 new CodeArgumentReferenceExpression("__ctrl"),
 384                                 uad.Info.Name);
 385                         assign.Right = GetExpressionFromString (uad.Value.GetType (), uad.Value.ToString (), uad.Info);
 386
 387                         method.Statements.Add (assign);
 388                 }
 389
 390                 void SetCustomAttributes (CodeMemberMethod method)
 391                 {
 392                         Type baseType = parser.BaseType;
 393                         if (baseType == null)
 394                                 return;
 395
 396                         List <UnknownAttributeDescriptor> attrs = parser.UnknownMainAttributes;
 397                         if (attrs == null || attrs.Count == 0)
 398                                 return;
 399
 400                         foreach (UnknownAttributeDescriptor uad in attrs)
 401                                 SetCustomAttribute (method, uad);
 402                 }
 403 #endif
 404
 405                 protected virtual void AddStatementsToInitMethod (CodeMemberMethod method)
 406                 {
 407                 }
 408
 409                 void AddLiteralSubObject (ControlBuilder builder, string str)
 410                 {
 411                         if (!builder.HasAspCode) {
 412                                 CodeObjectCreateExpression expr;
 413                                 expr = new CodeObjectCreateExpression (typeof (LiteralControl), new CodePrimitiveExpression (str));
 414                                 AddParsedSubObjectStmt (builder, expr);
 415                         } else {
 416                                 CodeMethodReferenceExpression methodRef = new CodeMethodReferenceExpression ();
 417                                 methodRef.TargetObject = new CodeArgumentReferenceExpression ("__output");
 418                                 methodRef.MethodName = "Write";
 419
 420                                 CodeMethodInvokeExpression expr;
 421                                 expr = new CodeMethodInvokeExpression (methodRef, new CodePrimitiveExpression (str));
 422                                 builder.renderMethod.Statements.Add (expr);
 423                         }
 424                 }
 425
 426                 string TrimDB (string value)
 427                 {
 428                         string str = value.Trim ();
 429                         str = str.Substring (3);
 430                         return str.Substring (0, str.Length - 2);
 431                 }
 432
 433                 string DataBoundProperty (ControlBuilder builder, Type type, string varName, string value)
 434                 {
 435                         value = TrimDB (value);
 436                         CodeMemberMethod method;
 437                         string dbMethodName = builder.method.Name + "_DB_" + dataBoundAtts++;
 438 #if NET_2_0
 439                         bool need_if = false;
 440                         value = value.Trim ();
 441                         if (StrUtils.StartsWith (value, "Bind", true)) {
 442                                 Match match = bindRegexInValue.Match (value);
 443                                 if (match.Success) {
 444                                         value = "Eval" + value.Substring (4);
 445                                         need_if = true;
 446                                 }
 447                         }
 448 #endif
 449                         method = CreateDBMethod (dbMethodName, GetContainerType (builder), builder.ControlType);
 450
 451                         CodeVariableReferenceExpression targetExpr = new CodeVariableReferenceExpression ("target");
 452
 453                         // This should be a CodePropertyReferenceExpression for properties... but it works anyway
 454                         CodeFieldReferenceExpression field = new CodeFieldReferenceExpression (targetExpr, varName);
 455
 456                         CodeExpression expr;
 457                         if (type == typeof (string)) {
 458                                 CodeMethodInvokeExpression tostring = new CodeMethodInvokeExpression ();
 459                                 CodeTypeReferenceExpression conv = new CodeTypeReferenceExpression (typeof (Convert));
 460                                 tostring.Method = new CodeMethodReferenceExpression (conv, "ToString");
 461                                 tostring.Parameters.Add (new CodeSnippetExpression (value));
 462                                 expr = tostring;
 463                         } else {
 464                                 CodeSnippetExpression snippet = new CodeSnippetExpression (value);
 465                                 expr = new CodeCastExpression (type, snippet);
 466                         }
 467
 468                         CodeAssignStatement assign = new CodeAssignStatement (field, expr);
 469 #if NET_2_0
 470                         if (need_if) {
 471                                 CodeExpression page = new CodePropertyReferenceExpression (thisRef, "Page");
 472                                 CodeExpression left = new CodeMethodInvokeExpression (page, "GetDataItem");
 473                                 CodeBinaryOperatorExpression ce = new CodeBinaryOperatorExpression (left, CodeBinaryOperatorType.IdentityInequality, new CodePrimitiveExpression (null));
 474                                 CodeConditionStatement ccs = new CodeConditionStatement (ce, assign);
 475                                 method.Statements.Add (ccs);
 476                         }
 477                         else
 478 #endif
 479                                 method.Statements.Add (assign);
 480
 481                         mainClass.Members.Add (method);
 482                         return method.Name;
 483                 }
 484
 485                 void AddCodeForPropertyOrField (ControlBuilder builder, Type type, string var_name, string att, MemberInfo member, bool isDataBound, bool isExpression)
 486                 {
 487                         CodeMemberMethod method = builder.method;
 488                         bool isWritable = IsWritablePropertyOrField (member);
 489                         if (isDataBound && isWritable) {
 490                                 string dbMethodName = DataBoundProperty (builder, type, var_name, att);
 491                                 AddEventAssign (method, "DataBinding", typeof (EventHandler), dbMethodName);
 492                                 return;
 493                         }
 494 #if NET_2_0
 495                         else if (isExpression && isWritable) {
 496                                 AddExpressionAssign (method, member, type, var_name, att);
 497                                 return;
 498                         }
 499 #endif
 500
 501                         CodeAssignStatement assign = new CodeAssignStatement ();
 502                         assign.Left = new CodePropertyReferenceExpression (ctrlVar, var_name);
 503                         currentLocation = builder.location;
 504                         assign.Right = GetExpressionFromString (type, att, member);
 505
 506                         method.Statements.Add (assign);
 507                 }
 508
 509                 bool IsDataBound (string value)
 510                 {
 511                         if (value == null || value == "")
 512                                 return false;
 513
 514                         string str = value.Trim ();
 515                         return (StrUtils.StartsWith (str, "<%#") && StrUtils.EndsWith (str, "%>"));
 516                 }
 517
 518 #if NET_2_0
 519                 bool IsExpression (string value)
 520                 {
 521                         if (value == null || value == "")
 522                                 return false;
 523                         string str = value.Trim ();
 524                         return (StrUtils.StartsWith (str, "<%$") && StrUtils.EndsWith (str, "%>"));
 525                 }
 526
 527                 void RegisterBindingInfo (ControlBuilder builder, string propName, ref string value)
 528                 {
 529                         string str = value.Trim ();
 530                         str = str.Substring (3).Trim ();        // eats "<%#"
 531                         if (StrUtils.StartsWith (str, "Bind", true)) {
 532                                 Match match = bindRegex.Match (str);
 533                                 if (match.Success) {
 534                                         string bindingName = match.Groups [1].Value;
 535
 536                                         TemplateBuilder templateBuilder = builder.ParentTemplateBuilder;
 537                                         if (templateBuilder == null || templateBuilder.BindingDirection == BindingDirection.OneWay)
 538                                                 throw new HttpException ("Bind expression not allowed in this context.");
 539
 540                                         string id = builder.attribs ["ID"] as string;
 541                                         if (id == null)
 542                                                 throw new HttpException ("Control of type '" + builder.ControlType + "' using two-way binding on property '" + propName + "' must have an ID.");
 543
 544                                         templateBuilder.RegisterBoundProperty (builder.ControlType, propName, id, bindingName);
 545                                 }
 546                         }
 547                 }
 548 #endif
 549
 550                 /*
 551                 static bool InvariantCompare (string a, string b)
 552                 {
 553                         return (0 == String.Compare (a, b, false, CultureInfo.InvariantCulture));
 554                 }
 555                 */
 556
 557                 static bool InvariantCompareNoCase (string a, string b)
 558                 {
 559                         return (0 == String.Compare (a, b, true, CultureInfo.InvariantCulture));
 560                 }
 561
 562                 static MemberInfo GetFieldOrProperty (Type type, string name)
 563                 {
 564                         MemberInfo member = null;
 565                         try {
 566                                 member = type.GetProperty (name, noCaseFlags & ~BindingFlags.NonPublic);
 567                         } catch {}
 568
 569                         if (member != null)
 570                                 return member;
 571
 572                         try {
 573                                 member = type.GetField (name, noCaseFlags & ~BindingFlags.NonPublic);
 574                         } catch {}
 575
 576                         return member;
 577                 }
 578
 579                 static bool IsWritablePropertyOrField (MemberInfo member)
 580                 {
 581                         PropertyInfo pi = member as PropertyInfo;
 582                         if (pi != null)
 583                                 return pi.CanWrite;
 584                         FieldInfo fi = member as FieldInfo;
 585                         if (fi != null)
 586                                 return !fi.IsInitOnly;
 587                         throw new ArgumentException ("Argument must be of PropertyInfo or FieldInfo type", "member");
 588                 }
 589
 590                 bool ProcessPropertiesAndFields (ControlBuilder builder, MemberInfo member, string id,
 591                                                  string attValue, string prefix)
 592                 {
 593                         int hyphen = id.IndexOf ('-');
 594                         bool isPropertyInfo = (member is PropertyInfo);
 595                         bool isDataBound = IsDataBound (attValue);
 596 #if NET_2_0
 597                         bool isExpression = !isDataBound && IsExpression (attValue);
 598 #else
 599                         bool isExpression = false;
 600 #endif
 601                         Type type;
 602                         if (isPropertyInfo) {
 603                                 type = ((PropertyInfo) member).PropertyType;
 604                         } else {
 605                                 type = ((FieldInfo) member).FieldType;
 606                         }
 607
 608                         if (InvariantCompareNoCase (member.Name, id)) {
 609 #if NET_2_0
 610                                 if (isDataBound)
 611                                         RegisterBindingInfo (builder, member.Name, ref attValue);
 612
 613 #endif
 614                                 if (!IsWritablePropertyOrField (member))
 615                                         return false;
 616
 617                                 AddCodeForPropertyOrField (builder, type, member.Name, attValue, member, isDataBound, isExpression);
 618                                 return true;
 619                         }
 620
 621                         if (hyphen == -1)
 622                                 return false;
 623
 624                         string prop_field = id.Replace ("-", ".");
 625                         string [] parts = prop_field.Split (new char [] {'.'});
 626                         int length = parts.Length;
 627
 628                         if (length < 2 || !InvariantCompareNoCase (member.Name, parts [0]))
 629                                 return false;
 630
 631                         if (length > 2) {
 632                                 MemberInfo sub_member = GetFieldOrProperty (type, parts [1]);
 633                                 if (sub_member == null)
 634                                         return false;
 635
 636                                 string new_prefix = prefix + member.Name + ".";
 637                                 string new_id = id.Substring (hyphen + 1);
 638                                 return ProcessPropertiesAndFields (builder, sub_member, new_id, attValue, new_prefix);
 639                         }
 640
 641                         MemberInfo subpf = GetFieldOrProperty (type, parts [1]);
 642                         if (!(subpf is PropertyInfo))
 643                                 return false;
 644
 645                         PropertyInfo subprop = (PropertyInfo) subpf;
 646                         if (subprop.CanWrite == false)
 647                                 return false;
 648
 649                         bool is_bool = (subprop.PropertyType == typeof (bool));
 650                         if (!is_bool && attValue == null)
 651                                 return false; // Font-Size -> Font-Size="" as html
 652
 653                         string val = attValue;
 654                         if (attValue == null && is_bool)
 655                                 val = "true"; // Font-Bold <=> Font-Bold="true"
 656 #if NET_2_0
 657                         if (isDataBound) RegisterBindingInfo (builder, prefix + member.Name + "." + subprop.Name, ref attValue);
 658 #endif
 659                         AddCodeForPropertyOrField (builder, subprop.PropertyType,
 660                                                    prefix + member.Name + "." + subprop.Name,
 661                                                    val, subprop, isDataBound, isExpression);
 662
 663                         return true;
 664                 }
 665
 666 #if NET_2_0
 667                 void AddExpressionAssign (CodeMemberMethod method, MemberInfo member, Type type, string name, string value)
 668                 {
 669                         CodeAssignStatement assign = new CodeAssignStatement ();
 670                         assign.Left = new CodePropertyReferenceExpression (ctrlVar, name);
 671
 672                         // First let's find the correct expression builder
 673                         value = value.Substring (3, value.Length - 5).Trim ();
 674                         int colon = value.IndexOf (':');
 675                         if (colon == -1)
 676                                 return;
 677                         string prefix = value.Substring (0, colon).Trim ();
 678                         string expr = value.Substring (colon + 1).Trim ();
 679
 680                         System.Configuration.Configuration config = WebConfigurationManager.OpenWebConfiguration ("");
 681                         if (config == null)
 682                                 return;
 683                         CompilationSection cs = (CompilationSection)config.GetSection ("system.web/compilation");
 684                         if (cs == null)
 685                                 return;
 686                         if (cs.ExpressionBuilders == null || cs.ExpressionBuilders.Count == 0)
 687                                 return;
 688
 689                         System.Web.Configuration.ExpressionBuilder ceb = cs.ExpressionBuilders[prefix];
 690                         if (ceb == null)
 691                                 return;
 692                         string builderType = ceb.Type;
 693
 694                         Type t;
 695                         try {
 696                                 t = HttpApplication.LoadType (builderType, true);
 697                         } catch (Exception e) {
 698                                 throw new HttpException (
 699                                         String.Format ("Failed to load expression builder type `{0}'", builderType), e);
 700                         }
 701
 702                         if (!typeof (System.Web.Compilation.ExpressionBuilder).IsAssignableFrom (t))
 703                                 throw new HttpException (
 704                                         String.Format (
 705                                                 "Type {0} is not descendant from System.Web.Compilation.ExpressionBuilder",
 706                                                 builderType));
 707
 708                         System.Web.Compilation.ExpressionBuilder eb = null;
 709                         object parsedData;
 710                         ExpressionBuilderContext ctx;
 711
 712                         try {
 713                                 eb = Activator.CreateInstance (t) as System.Web.Compilation.ExpressionBuilder;
 714                                 ctx = new ExpressionBuilderContext (HttpContext.Current.Request.FilePath);
 715                                 parsedData = eb.ParseExpression (expr, type, ctx);
 716                         } catch (Exception e) {
 717                                 throw new HttpException (
 718                                         String.Format ("Failed to create an instance of type `{0}'", builderType), e);
 719                         }
 720
 721                         BoundPropertyEntry bpe = CreateBoundPropertyEntry (member as PropertyInfo, prefix, expr);
 722                         assign.Right = eb.GetCodeExpression (bpe, parsedData, ctx);
 723
 724                         method.Statements.Add (assign);
 725                 }
 726
 727                 BoundPropertyEntry CreateBoundPropertyEntry (PropertyInfo pi, string prefix, string expr)
 728                 {
 729                         if (pi == null)
 730                                 return null;
 731
 732                         BoundPropertyEntry ret = new BoundPropertyEntry ();
 733                         ret.Expression = expr;
 734                         ret.ExpressionPrefix = prefix;
 735                         ret.Generated = false;
 736                         ret.Name = pi.Name;
 737                         ret.PropertyInfo = pi;
 738                         ret.Type = pi.PropertyType;
 739
 740                         return ret;
 741                 }
 742
 743                 void AssignPropertyFromResources (CodeMemberMethod method, MemberInfo mi, string attvalue)
 744                 {
 745                         bool isProperty = mi.MemberType == MemberTypes.Property;
 746                         bool isField = !isProperty && (mi.MemberType == MemberTypes.Field);
 747
 748                         if (!isProperty && !isField || !IsWritablePropertyOrField (mi))
 749                                 return;
 750
 751                         string memberName = mi.Name;
 752                         string resname = String.Concat (attvalue, ".", memberName);
 753
 754                         // __ctrl.Text = System.Convert.ToString(HttpContext.GetLocalResourceObject("ButtonResource1.Text"));
 755                         string inputFile = parser.InputFile;
 756                         string physPath = HttpContext.Current.Request.PhysicalApplicationPath;
 757
 758                         if (StrUtils.StartsWith (inputFile, physPath))
 759                                 inputFile = parser.InputFile.Substring (physPath.Length - 1);
 760                         else
 761                                 return;
 762
 763                         char dsc = System.IO.Path.DirectorySeparatorChar;
 764                         if (dsc != '/')
 765                                 inputFile = inputFile.Replace (dsc, '/');
 766
 767                         object obj = HttpContext.GetLocalResourceObject (inputFile, resname);
 768                         if (obj == null)
 769                                 return;
 770
 771                         if (!isProperty && !isField)
 772                                 return; // an "impossible" case
 773
 774                         Type declaringType = mi.DeclaringType;
 775                         CodeAssignStatement assign = new CodeAssignStatement ();
 776
 777                         assign.Left = new CodePropertyReferenceExpression (ctrlVar, memberName);
 778                         assign.Right = ResourceExpressionBuilder.CreateGetLocalResourceObject (mi, resname);
 779
 780                         method.Statements.Add (assign);
 781                 }
 782
 783                 void AssignPropertiesFromResources (CodeMemberMethod method, Type controlType, string attvalue)
 784                 {
 785                         // Process all public fields and properties of the control. We don't use GetMembers to make the code
 786                         // faster
 787                         FieldInfo [] fields = controlType.GetFields (
 788                                 BindingFlags.Instance | BindingFlags.Static |
 789                                 BindingFlags.Public | BindingFlags.FlattenHierarchy);
 790                         PropertyInfo [] properties = controlType.GetProperties (
 791                                 BindingFlags.Instance | BindingFlags.Static |
 792                                 BindingFlags.Public | BindingFlags.FlattenHierarchy);
 793
 794                         foreach (FieldInfo fi in fields)
 795                                 AssignPropertyFromResources (method, fi, attvalue);
 796                         foreach (PropertyInfo pi in properties)
 797                                 AssignPropertyFromResources (method, pi, attvalue);
 798                 }
 799
 800                 void AssignPropertiesFromResources (ControlBuilder builder, string attvalue)
 801                 {
 802                         if (attvalue == null || attvalue.Length == 0)
 803                                 return;
 804
 805                         Type controlType = builder.ControlType;
 806                         if (controlType == null)
 807                                 return;
 808
 809                         AssignPropertiesFromResources (builder.method, controlType, attvalue);
 810                 }
 811 #endif
 812
 813                 void AddEventAssign (CodeMemberMethod method, string name, Type type, string value)
 814                 {
 815                         //"__ctrl.{0} += new {1} (this.{2});"
 816                         CodeEventReferenceExpression evtID = new CodeEventReferenceExpression (ctrlVar, name);
 817
 818                         CodeDelegateCreateExpression create;
 819                         create = new CodeDelegateCreateExpression (new CodeTypeReference (type), thisRef, value);
 820
 821                         CodeAttachEventStatement attach = new CodeAttachEventStatement (evtID, create);
 822                         method.Statements.Add (attach);
 823                 }
 824
 825                 void CreateAssignStatementFromAttribute (ControlBuilder builder, string id)
 826                 {
 827                         EventInfo [] ev_info = null;
 828                         Type type = builder.ControlType;
 829
 830                         string attvalue = builder.attribs [id] as string;
 831                         if (id.Length > 2 && id.Substring (0, 2).ToUpper () == "ON"){
 832                                 if (ev_info == null)
 833                                         ev_info = type.GetEvents ();
 834
 835                                 string id_as_event = id.Substring (2);
 836                                 foreach (EventInfo ev in ev_info){
 837                                         if (InvariantCompareNoCase (ev.Name, id_as_event)){
 838                                                 AddEventAssign (builder.method,
 839                                                                 ev.Name,
 840                                                                 ev.EventHandlerType,
 841                                                                 attvalue);
 842
 843                                                 return;
 844                                         }
 845                                 }
 846
 847                         }
 848
 849 #if NET_2_0
 850                         if (id.ToLower () == "meta:resourcekey") {
 851                                 AssignPropertiesFromResources (builder, attvalue);
 852                                 return;
 853                         }
 854 #endif
 855
 856                         int hyphen = id.IndexOf ('-');
 857                         string alt_id = id;
 858                         if (hyphen != -1)
 859                                 alt_id = id.Substring (0, hyphen);
 860
 861                         MemberInfo fop = GetFieldOrProperty (type, alt_id);
 862                         if (fop != null) {
 863                                 if (ProcessPropertiesAndFields (builder, fop, id, attvalue, null))
 864                                         return;
 865                         }
 866
 867                         if (!typeof (IAttributeAccessor).IsAssignableFrom (type))
 868                                 throw new ParseException (builder.location, "Unrecognized attribute: " + id);
 869
 870                         string val;
 871                         CodeMemberMethod method = builder.method;
 872                         bool databound = IsDataBound (attvalue);
 873
 874                         if (databound) {
 875                                 val = attvalue.Substring (3);
 876                                 val = val.Substring (0, val.Length - 2);
 877                                 CreateDBAttributeMethod (builder, id, val);
 878                         } else {
 879                                 CodeCastExpression cast;
 880                                 CodeMethodReferenceExpression methodExpr;
 881                                 CodeMethodInvokeExpression expr;
 882
 883                                 cast = new CodeCastExpression (typeof (IAttributeAccessor), ctrlVar);
 884                                 methodExpr = new CodeMethodReferenceExpression (cast, "SetAttribute");
 885                                 expr = new CodeMethodInvokeExpression (methodExpr);
 886                                 expr.Parameters.Add (new CodePrimitiveExpression (id));
 887                                 expr.Parameters.Add (new CodePrimitiveExpression (attvalue));
 888                                 method.Statements.Add (expr);
 889                         }
 890
 891                 }
 892
 893                 protected void CreateAssignStatementsFromAttributes (ControlBuilder builder)
 894                 {
 895 #if NET_2_0
 896                         bool haveMetaKey = false;
 897 #endif
 898                         this.dataBoundAtts = 0;
 899                         IDictionary atts = builder.attribs;
 900                         if (atts == null || atts.Count == 0)
 901                                 return;
 902
 903                         foreach (string id in atts.Keys) {
 904                                 if (InvariantCompareNoCase (id, "runat"))
 905                                         continue;
 906                                 // ID is assigned in BuildControltree
 907                                 if (InvariantCompareNoCase (id, "id"))
 908                                         continue;
 909
 910 #if NET_2_0
 911                                 /* we skip SkinID here as it's assigned in BuildControlTree */
 912                                 if (InvariantCompareNoCase (id, "skinid"))
 913                                         continue;
 914                                 if (InvariantCompareNoCase (id, "meta:resourcekey")) {
 915                                         haveMetaKey = true;
 916                                         continue;
 917                                 }
 918 #endif
 919                                 CreateAssignStatementFromAttribute (builder, id);
 920                         }
 921
 922 #if NET_2_0
 923                         if (haveMetaKey)
 924                                 CreateAssignStatementFromAttribute (builder, "meta:resourcekey");
 925 #endif
 926                 }
 927
 928                 void CreateDBAttributeMethod (ControlBuilder builder, string attr, string code)
 929                 {
 930                         if (code == null || code.Trim () == "")
 931                                 return;
 932
 933                         string id = builder.GetNextID (null);
 934                         string dbMethodName = "__DataBind_" + id;
 935                         CodeMemberMethod method = builder.method;
 936                         AddEventAssign (method, "DataBinding", typeof (EventHandler), dbMethodName);
 937
 938                         method = CreateDBMethod (dbMethodName, GetContainerType (builder), builder.ControlType);
 939                         CodeCastExpression cast;
 940                         CodeMethodReferenceExpression methodExpr;
 941                         CodeMethodInvokeExpression expr;
 942
 943                         CodeVariableReferenceExpression targetExpr = new CodeVariableReferenceExpression ("target");
 944                         cast = new CodeCastExpression (typeof (IAttributeAccessor), targetExpr);
 945                         methodExpr = new CodeMethodReferenceExpression (cast, "SetAttribute");
 946                         expr = new CodeMethodInvokeExpression (methodExpr);
 947                         expr.Parameters.Add (new CodePrimitiveExpression (attr));
 948                         CodeMethodInvokeExpression tostring = new CodeMethodInvokeExpression ();
 949                         tostring.Method = new CodeMethodReferenceExpression (
 950                                                         new CodeTypeReferenceExpression (typeof (Convert)),
 951                                                         "ToString");
 952                         tostring.Parameters.Add (new CodeSnippetExpression (code));
 953                         expr.Parameters.Add (tostring);
 954                         method.Statements.Add (expr);
 955                         mainClass.Members.Add (method);
 956                 }
 957
 958                 void AddRenderControl (ControlBuilder builder)
 959                 {
 960                         CodeIndexerExpression indexer = new CodeIndexerExpression ();
 961                         indexer.TargetObject = new CodePropertyReferenceExpression (
 962                                                         new CodeArgumentReferenceExpression ("parameterContainer"),
 963                                                         "Controls");
 964
 965                         indexer.Indices.Add (new CodePrimitiveExpression (builder.renderIndex));
 966
 967                         CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression (indexer, "RenderControl");
 968                         invoke.Parameters.Add (new CodeArgumentReferenceExpression ("__output"));
 969                         builder.renderMethod.Statements.Add (invoke);
 970                         builder.renderIndex++;
 971                 }
 972
 973                 protected void AddChildCall (ControlBuilder parent, ControlBuilder child)
 974                 {
 975                         if (parent == null || child == null)
 976                                 return;
 977                         CodeMethodReferenceExpression m = new CodeMethodReferenceExpression (thisRef, child.method.Name);
 978                         CodeMethodInvokeExpression expr = new CodeMethodInvokeExpression (m);
 979
 980                         object [] atts = null;
 981
 982                         if (child.ControlType != null)
 983                                 child.ControlType.GetCustomAttributes (typeof (PartialCachingAttribute), true);
 984                         if (atts != null && atts.Length > 0) {
 985                                 PartialCachingAttribute pca = (PartialCachingAttribute) atts [0];
 986                                 CodeTypeReferenceExpression cc = new CodeTypeReferenceExpression("System.Web.UI.StaticPartialCachingControl");
 987                                 CodeMethodInvokeExpression build = new CodeMethodInvokeExpression (cc, "BuildCachedControl");
 988                                 build.Parameters.Add (new CodeArgumentReferenceExpression("__ctrl"));
 989                                 build.Parameters.Add (new CodePrimitiveExpression (child.ID));
 990 #if NET_1_1
 991                                 if (pca.Shared)
 992                                         build.Parameters.Add (new CodePrimitiveExpression (child.ControlType.GetHashCode ().ToString ()));
 993                                 else
 994 #endif
 995                                         build.Parameters.Add (new CodePrimitiveExpression (Guid.NewGuid ().ToString ()));
 996
 997                                 build.Parameters.Add (new CodePrimitiveExpression (pca.Duration));
 998                                 build.Parameters.Add (new CodePrimitiveExpression (pca.VaryByParams));
 999                                 build.Parameters.Add (new CodePrimitiveExpression (pca.VaryByControls));
1000                                 build.Parameters.Add (new CodePrimitiveExpression (pca.VaryByCustom));
1001                                 build.Parameters.Add (new CodeDelegateCreateExpression (
1002                                                               new CodeTypeReference (typeof (System.Web.UI.BuildMethod)),
1003                                                               thisRef, child.method.Name));
1004
1005                                 parent.methodStatements.Add (build);
1006                                 if (parent.HasAspCode)
1007                                         AddRenderControl (parent);
1008                                 return;
1009                         }
1010
1011                         if (child.isProperty || parent.ChildrenAsProperties) {
1012                                 expr.Parameters.Add (new CodeFieldReferenceExpression (ctrlVar, child.TagName));
1013                                 parent.methodStatements.Add (expr);
1014                                 return;
1015                         }
1016
1017                         parent.methodStatements.Add (expr);
1018                         CodeFieldReferenceExpression field = new CodeFieldReferenceExpression (thisRef, child.ID);
1019                         if (parent.ControlType == null || typeof (IParserAccessor).IsAssignableFrom (parent.ControlType)) {
1020                                 AddParsedSubObjectStmt (parent, field);
1021                         } else {
1022                                 CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression (ctrlVar, "Add");
1023                                 invoke.Parameters.Add (field);
1024                                 parent.methodStatements.Add (invoke);
1025                         }
1026
1027                         if (parent.HasAspCode)
1028                                 AddRenderControl (parent);
1029                 }
1030
1031                 void AddTemplateInvocation (CodeMemberMethod method, string name, string methodName)
1032                 {
1033                         CodePropertyReferenceExpression prop = new CodePropertyReferenceExpression (ctrlVar, name);
1034
1035                         CodeDelegateCreateExpression newBuild = new CodeDelegateCreateExpression (
1036                                 new CodeTypeReference (typeof (BuildTemplateMethod)), thisRef, methodName);
1037
1038                         CodeObjectCreateExpression newCompiled = new CodeObjectCreateExpression (typeof (CompiledTemplateBuilder));
1039                         newCompiled.Parameters.Add (newBuild);
1040
1041                         CodeAssignStatement assign = new CodeAssignStatement (prop, newCompiled);
1042                         method.Statements.Add (assign);
1043                 }
1044
1045 #if NET_2_0
1046                 void AddBindableTemplateInvocation (CodeMemberMethod method, string name, string methodName, string extractMethodName)
1047                 {
1048                         CodePropertyReferenceExpression prop = new CodePropertyReferenceExpression (ctrlVar, name);
1049
1050                         CodeDelegateCreateExpression newBuild = new CodeDelegateCreateExpression (
1051                                 new CodeTypeReference (typeof (BuildTemplateMethod)), thisRef, methodName);
1052
1053                         CodeDelegateCreateExpression newExtract = new CodeDelegateCreateExpression (
1054                                 new CodeTypeReference (typeof (ExtractTemplateValuesMethod)), thisRef, extractMethodName);
1055
1056                         CodeObjectCreateExpression newCompiled = new CodeObjectCreateExpression (typeof (CompiledBindableTemplateBuilder));
1057                         newCompiled.Parameters.Add (newBuild);
1058                         newCompiled.Parameters.Add (newExtract);
1059
1060                         CodeAssignStatement assign = new CodeAssignStatement (prop, newCompiled);
1061                         method.Statements.Add (assign);
1062                 }
1063
1064                 string CreateExtractValuesMethod (TemplateBuilder builder)
1065                 {
1066                         CodeMemberMethod method = new CodeMemberMethod ();
1067                         method.Name = "__ExtractValues_" + builder.ID;
1068                         method.Attributes = MemberAttributes.Private | MemberAttributes.Final;
1069                         method.ReturnType = new CodeTypeReference (typeof(IOrderedDictionary));
1070
1071                         CodeParameterDeclarationExpression arg = new CodeParameterDeclarationExpression ();
1072                         arg.Type = new CodeTypeReference (typeof (Control));
1073                         arg.Name = "__container";
1074                         method.Parameters.Add (arg);
1075                         mainClass.Members.Add (method);
1076
1077                         CodeObjectCreateExpression newTable = new CodeObjectCreateExpression ();
1078                         newTable.CreateType = new CodeTypeReference (typeof(OrderedDictionary));
1079                         method.Statements.Add (new CodeVariableDeclarationStatement (typeof(OrderedDictionary), "__table", newTable));
1080                         CodeVariableReferenceExpression tableExp = new CodeVariableReferenceExpression ("__table");
1081
1082                         if (builder.Bindings != null) {
1083                                 Hashtable hash = new Hashtable ();
1084                                 foreach (TemplateBinding binding in builder.Bindings) {
1085                                         CodeConditionStatement sif;
1086                                         CodeVariableReferenceExpression control;
1087                                         CodeAssignStatement assign;
1088
1089                                         if (hash [binding.ControlId] == null) {
1090
1091                                                 CodeVariableDeclarationStatement dec = new CodeVariableDeclarationStatement (binding.ControlType, binding.ControlId);
1092                                                 method.Statements.Add (dec);
1093                                                 CodeVariableReferenceExpression cter = new CodeVariableReferenceExpression ("__container");
1094                                                 CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression (cter, "FindControl");
1095                                                 invoke.Parameters.Add (new CodePrimitiveExpression (binding.ControlId));
1096
1097                                                 assign = new CodeAssignStatement ();
1098                                                 control = new CodeVariableReferenceExpression (binding.ControlId);
1099                                                 assign.Left = control;
1100                                                 assign.Right = new CodeCastExpression (binding.ControlType, invoke);
1101                                                 method.Statements.Add (assign);
1102
1103                                                 sif = new CodeConditionStatement ();
1104                                                 sif.Condition = new CodeBinaryOperatorExpression (control, CodeBinaryOperatorType.IdentityInequality, new CodePrimitiveExpression (null));
1105
1106                                                 method.Statements.Add (sif);
1107
1108                                                 hash [binding.ControlId] = sif;
1109                                         }
1110
1111                                         sif = (CodeConditionStatement) hash [binding.ControlId];
1112                                         control = new CodeVariableReferenceExpression (binding.ControlId);
1113                                         assign = new CodeAssignStatement ();
1114                                         assign.Left = new CodeIndexerExpression (tableExp, new CodePrimitiveExpression (binding.FieldName));
1115                                         assign.Right = new CodePropertyReferenceExpression (control, binding.ControlProperty);
1116                                         sif.TrueStatements.Add (assign);
1117                                 }
1118                         }
1119
1120                         method.Statements.Add (new CodeMethodReturnStatement (tableExp));
1121                         return method.Name;
1122                 }
1123
1124                 void AddContentTemplateInvocation (ContentBuilderInternal cbuilder, CodeMemberMethod method, string methodName)
1125                 {
1126                         CodeDelegateCreateExpression newBuild = new CodeDelegateCreateExpression (
1127                                 new CodeTypeReference (typeof (BuildTemplateMethod)), thisRef, methodName);
1128
1129                         CodeObjectCreateExpression newCompiled = new CodeObjectCreateExpression (typeof (CompiledTemplateBuilder));
1130                         newCompiled.Parameters.Add (newBuild);
1131
1132                         CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression (thisRef, "AddContentTemplate");
1133                         invoke.Parameters.Add (new CodePrimitiveExpression (cbuilder.ContentPlaceHolderID));
1134                         invoke.Parameters.Add (newCompiled);
1135
1136                         method.Statements.Add (invoke);
1137                 }
1138 #endif
1139
1140                 void AddCodeRender (ControlBuilder parent, CodeRenderBuilder cr)
1141                 {
1142                         if (cr.Code == null || cr.Code.Trim () == "")
1143                                 return;
1144
1145                         if (!cr.IsAssign) {
1146                                 CodeSnippetStatement code = new CodeSnippetStatement (cr.Code);
1147                                 parent.renderMethod.Statements.Add (code);
1148                                 return;
1149                         }
1150
1151                         CodeMethodInvokeExpression expr = new CodeMethodInvokeExpression ();
1152                         expr.Method = new CodeMethodReferenceExpression (
1153                                                         new CodeArgumentReferenceExpression ("__output"),
1154                                                         "Write");
1155
1156                         expr.Parameters.Add (new CodeSnippetExpression (cr.Code));
1157                         parent.renderMethod.Statements.Add (expr);
1158                 }
1159
1160                 static Type GetContainerType (ControlBuilder builder)
1161                 {
1162                         TemplateBuilder tb = builder as TemplateBuilder;
1163                         if (tb != null && tb.ContainerType != null)
1164                                 return tb.ContainerType;
1165 #if NET_2_0
1166                         return builder.BindingContainerType;
1167 #else
1168                         Type type = builder.BindingContainerType;
1169
1170                         PropertyInfo prop = type.GetProperty ("Items", noCaseFlags & ~BindingFlags.NonPublic);
1171                         if (prop == null)
1172                                 return type;
1173
1174                         Type ptype = prop.PropertyType;
1175                         if (!typeof (ICollection).IsAssignableFrom (ptype))
1176                                 return type;
1177
1178                         prop = ptype.GetProperty ("Item", noCaseFlags & ~BindingFlags.NonPublic);
1179                         if (prop == null)
1180                                 return type;
1181
1182                         return prop.PropertyType;
1183 #endif
1184                 }
1185
1186                 CodeMemberMethod CreateDBMethod (string name, Type container, Type target)
1187                 {
1188                         CodeMemberMethod method = new CodeMemberMethod ();
1189                         method.Attributes = MemberAttributes.Public | MemberAttributes.Final;
1190                         method.Name = name;
1191                         method.Parameters.Add (new CodeParameterDeclarationExpression (typeof (object), "sender"));
1192                         method.Parameters.Add (new CodeParameterDeclarationExpression (typeof (EventArgs), "e"));
1193
1194                         CodeTypeReference containerRef = new CodeTypeReference (container);
1195                         CodeTypeReference targetRef = new CodeTypeReference (target);
1196
1197                         CodeVariableDeclarationStatement decl = new CodeVariableDeclarationStatement();
1198                         decl.Name = "Container";
1199                         decl.Type = containerRef;
1200                         method.Statements.Add (decl);
1201
1202                         decl = new CodeVariableDeclarationStatement();
1203                         decl.Name = "target";
1204                         decl.Type = targetRef;
1205                         method.Statements.Add (decl);
1206
1207                         CodeVariableReferenceExpression targetExpr = new CodeVariableReferenceExpression ("target");
1208                         CodeAssignStatement assign = new CodeAssignStatement ();
1209                         assign.Left = targetExpr;
1210                         assign.Right = new CodeCastExpression (targetRef, new CodeArgumentReferenceExpression ("sender"));
1211                         method.Statements.Add (assign);
1212
1213                         assign = new CodeAssignStatement ();
1214                         assign.Left = new CodeVariableReferenceExpression ("Container");
1215                         assign.Right = new CodeCastExpression (containerRef,
1216                                                 new CodePropertyReferenceExpression (targetExpr, "BindingContainer"));
1217                         method.Statements.Add (assign);
1218
1219                         return method;
1220                 }
1221
1222                 void AddDataBindingLiteral (ControlBuilder builder, DataBindingBuilder db)
1223                 {
1224                         if (db.Code == null || db.Code.Trim () == "")
1225                                 return;
1226
1227                         EnsureID (db);
1228                         CreateField (db, false);
1229
1230                         string dbMethodName = "__DataBind_" + db.ID;
1231                         // Add the method that builds the DataBoundLiteralControl
1232                         InitMethod (db, false, false);
1233                         CodeMemberMethod method = db.method;
1234                         AddEventAssign (method, "DataBinding", typeof (EventHandler), dbMethodName);
1235                         method.Statements.Add (new CodeMethodReturnStatement (ctrlVar));
1236
1237                         // Add the DataBind handler
1238                         method = CreateDBMethod (dbMethodName, GetContainerType (builder), typeof (DataBoundLiteralControl));
1239
1240                         CodeVariableReferenceExpression targetExpr = new CodeVariableReferenceExpression ("target");
1241                         CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression ();
1242                         invoke.Method = new CodeMethodReferenceExpression (targetExpr, "SetDataBoundString");
1243                         invoke.Parameters.Add (new CodePrimitiveExpression (0));
1244
1245                         CodeMethodInvokeExpression tostring = new CodeMethodInvokeExpression ();
1246                         tostring.Method = new CodeMethodReferenceExpression (
1247                                                         new CodeTypeReferenceExpression (typeof (Convert)),
1248                                                         "ToString");
1249                         tostring.Parameters.Add (new CodeSnippetExpression (db.Code));
1250                         invoke.Parameters.Add (tostring);
1251                         method.Statements.Add (invoke);
1252
1253                         mainClass.Members.Add (method);
1254
1255                         AddChildCall (builder, db);
1256                 }
1257
1258                 void FlushText (ControlBuilder builder, StringBuilder sb)
1259                 {
1260                         if (sb.Length > 0) {
1261                                 AddLiteralSubObject (builder, sb.ToString ());
1262                                 sb.Length = 0;
1263                         }
1264                 }
1265
1266                 protected void CreateControlTree (ControlBuilder builder, bool inTemplate, bool childrenAsProperties)
1267                 {
1268                         EnsureID (builder);
1269                         bool isTemplate = (typeof (TemplateBuilder).IsAssignableFrom (builder.GetType ()));
1270
1271                         if (!isTemplate && !inTemplate) {
1272                                 CreateField (builder, true);
1273                         } else if (!isTemplate) {
1274                                 bool doCheck = false;
1275
1276 #if NET_2_0
1277                                 bool singleInstance = false;
1278                                 ControlBuilder pb = builder.parentBuilder;
1279                                 TemplateBuilder tpb;
1280                                 while (pb != null) {
1281                                         tpb = pb as TemplateBuilder;
1282                                         if (tpb == null) {
1283                                                 pb = pb.parentBuilder;
1284                                                 continue;
1285                                         }
1286
1287                                         if (tpb.TemplateInstance == TemplateInstance.Single)
1288                                                 singleInstance = true;
1289                                         break;
1290                                 }
1291
1292                                 if (!singleInstance)
1293 #endif
1294                                         builder.ID = builder.GetNextID (null);
1295 #if NET_2_0
1296                                 else
1297                                         doCheck = true;
1298 #endif
1299                                 CreateField (builder, doCheck);
1300                         }
1301
1302                         InitMethod (builder, isTemplate, childrenAsProperties);
1303                         if (!isTemplate || builder.GetType () == typeof (RootBuilder))
1304                                 CreateAssignStatementsFromAttributes (builder);
1305
1306                         if (builder.Children != null && builder.Children.Count > 0) {
1307                                 ArrayList templates = null;
1308
1309                                 StringBuilder sb = new StringBuilder ();
1310                                 foreach (object b in builder.Children) {
1311                                         if (b is string) {
1312                                                 sb.Append ((string) b);
1313                                                 continue;
1314                                         }
1315
1316                                         FlushText (builder, sb);
1317                                         if (b is ObjectTagBuilder) {
1318                                                 ProcessObjectTag ((ObjectTagBuilder) b);
1319                                                 continue;
1320                                         }
1321
1322                                         StringPropertyBuilder pb = b as StringPropertyBuilder;
1323                                         if (pb != null){
1324                                                 if (pb.Children != null && pb.Children.Count > 0) {
1325                                                         StringBuilder asb = new StringBuilder ();
1326                                                         foreach (string s in pb.Children)
1327                                                                 asb.Append (s);
1328                                                         CodeMemberMethod method = builder.method;
1329                                                         CodeAssignStatement assign = new CodeAssignStatement ();
1330                                                         assign.Left = new CodePropertyReferenceExpression (ctrlVar, pb.PropertyName);
1331                                                         assign.Right = new CodePrimitiveExpression (asb.ToString ());
1332                                                         method.Statements.Add (assign);
1333                                                 }
1334                                                 continue;
1335                                         }
1336
1337 #if NET_2_0
1338                                         if (b is ContentBuilderInternal) {
1339                                                 ContentBuilderInternal cb = (ContentBuilderInternal) b;
1340                                                 CreateControlTree (cb, false, true);
1341                                                 AddContentTemplateInvocation (cb, builder.method, cb.method.Name);
1342                                                 continue;
1343                                         }
1344 #endif
1345
1346                                         if (b is TemplateBuilder) {
1347                                                 if (templates == null)
1348                                                         templates = new ArrayList ();
1349
1350                                                 templates.Add (b);
1351                                                 continue;
1352                                         }
1353
1354                                         if (b is CodeRenderBuilder) {
1355                                                 AddCodeRender (builder, (CodeRenderBuilder) b);
1356                                                 continue;
1357                                         }
1358
1359                                         if (b is DataBindingBuilder) {
1360                                                 AddDataBindingLiteral (builder, (DataBindingBuilder) b);
1361                                                 continue;
1362                                         }
1363
1364                                         if (b is ControlBuilder) {
1365                                                 ControlBuilder child = (ControlBuilder) b;
1366                                                 CreateControlTree (child, inTemplate, builder.ChildrenAsProperties);
1367                                                 AddChildCall (builder, child);
1368                                                 continue;
1369                                         }
1370
1371                                         throw new Exception ("???");
1372                                 }
1373
1374                                 FlushText (builder, sb);
1375
1376                                 if (templates != null) {
1377                                         foreach (TemplateBuilder b in templates) {
1378                                                 CreateControlTree (b, true, false);
1379 #if NET_2_0
1380                                                 if (b.BindingDirection == BindingDirection.TwoWay) {
1381                                                         string extractMethod = CreateExtractValuesMethod (b);
1382                                                         AddBindableTemplateInvocation (builder.method, b.TagName, b.method.Name, extractMethod);
1383                                                 }
1384                                                 else
1385 #endif
1386                                                 AddTemplateInvocation (builder.method, b.TagName, b.method.Name);
1387                                         }
1388                                 }
1389
1390                         }
1391
1392                         if (builder.defaultPropertyBuilder != null) {
1393                                 ControlBuilder b = builder.defaultPropertyBuilder;
1394                                 CreateControlTree (b, false, true);
1395                                 AddChildCall (builder, b);
1396                         }
1397
1398                         if (builder.HasAspCode) {
1399                                 CodeMethodReferenceExpression m = new CodeMethodReferenceExpression ();
1400                                 m.TargetObject = thisRef;
1401                                 m.MethodName = builder.renderMethod.Name;
1402
1403                                 CodeDelegateCreateExpression create = new CodeDelegateCreateExpression ();
1404                                 create.DelegateType = new CodeTypeReference (typeof (RenderMethod));
1405                                 create.TargetObject = thisRef;
1406                                 create.MethodName = builder.renderMethod.Name;
1407
1408                                 CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression ();
1409                                 invoke.Method = new CodeMethodReferenceExpression (ctrlVar, "SetRenderMethodDelegate");
1410                                 invoke.Parameters.Add (create);
1411
1412                                 builder.methodStatements.Add (invoke);
1413                         }
1414
1415                         if (!childrenAsProperties && typeof (Control).IsAssignableFrom (builder.ControlType))
1416                                 builder.method.Statements.Add (new CodeMethodReturnStatement (ctrlVar));
1417
1418 #if NET_2_0
1419                         if (builder is RootBuilder)
1420                                 if (!String.IsNullOrEmpty (parser.MetaResourceKey))
1421                                         AssignPropertiesFromResources (builder.method, parser.BaseType, parser.MetaResourceKey);
1422 #endif
1423                 }
1424
1425                 protected internal override void CreateMethods ()
1426                 {
1427                         base.CreateMethods ();
1428
1429                         CreateProperties ();
1430                         CreateControlTree (parser.RootBuilder, false, false);
1431                         CreateFrameworkInitializeMethod ();
1432                 }
1433
1434                 void CallBaseFrameworkInitialize (CodeMemberMethod method)
1435                 {
1436                         CodeBaseReferenceExpression baseRef = new CodeBaseReferenceExpression ();
1437                         CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression (baseRef, "FrameworkInitialize");
1438                         method.Statements.Add (invoke);
1439                 }
1440
1441                 void CreateFrameworkInitializeMethod ()
1442                 {
1443                         CodeMemberMethod method = new CodeMemberMethod ();
1444                         method.Name = "FrameworkInitialize";
1445                         method.Attributes = MemberAttributes.Family | MemberAttributes.Override;
1446                         PrependStatementsToFrameworkInitialize (method);
1447                         CallBaseFrameworkInitialize (method);
1448                         AppendStatementsToFrameworkInitialize (method);
1449                         mainClass.Members.Add (method);
1450                 }
1451
1452                 protected virtual void PrependStatementsToFrameworkInitialize (CodeMemberMethod method)
1453                 {
1454                 }
1455
1456                 protected virtual void AppendStatementsToFrameworkInitialize (CodeMemberMethod method)
1457                 {
1458                         if (!parser.EnableViewState) {
1459                                 CodeAssignStatement stmt = new CodeAssignStatement ();
1460                                 stmt.Left = new CodePropertyReferenceExpression (thisRef, "EnableViewState");
1461                                 stmt.Right = new CodePrimitiveExpression (false);
1462                                 method.Statements.Add (stmt);
1463                         }
1464
1465                         CodeMethodReferenceExpression methodExpr;
1466                         methodExpr = new CodeMethodReferenceExpression (thisRef, "__BuildControlTree");
1467                         CodeMethodInvokeExpression expr = new CodeMethodInvokeExpression (methodExpr, thisRef);
1468                         method.Statements.Add (new CodeExpressionStatement (expr));
1469                 }
1470
1471                 protected override void AddApplicationAndSessionObjects ()
1472                 {
1473                         foreach (ObjectTagBuilder tag in GlobalAsaxCompiler.ApplicationObjects) {
1474                                 CreateFieldForObject (tag.Type, tag.ObjectID);
1475                                 CreateApplicationOrSessionPropertyForObject (tag.Type, tag.ObjectID, true, false);
1476                         }
1477
1478                         foreach (ObjectTagBuilder tag in GlobalAsaxCompiler.SessionObjects) {
1479                                 CreateApplicationOrSessionPropertyForObject (tag.Type, tag.ObjectID, false, false);
1480                         }
1481                 }
1482
1483                 protected void ProcessObjectTag (ObjectTagBuilder tag)
1484                 {
1485                         string fieldName = CreateFieldForObject (tag.Type, tag.ObjectID);
1486                         CreatePropertyForObject (tag.Type, tag.ObjectID, fieldName, false);
1487                 }
1488
1489                 void CreateProperties ()
1490                 {
1491                         if (!parser.AutoEventWireup) {
1492                                 CreateAutoEventWireup ();
1493                         } else {
1494                                 CreateAutoHandlers ();
1495                         }
1496
1497                         CreateApplicationInstance ();
1498                 }
1499
1500                 void CreateApplicationInstance ()
1501                 {
1502                         CodeMemberProperty prop = new CodeMemberProperty ();
1503                         Type appType = typeof (HttpApplication);
1504                         prop.Type = new CodeTypeReference (appType);
1505                         prop.Name = "ApplicationInstance";
1506                         prop.Attributes = MemberAttributes.Family | MemberAttributes.Final;
1507
1508                         CodePropertyReferenceExpression propRef = new CodePropertyReferenceExpression (thisRef, "Context");
1509
1510                         propRef = new CodePropertyReferenceExpression (propRef, "ApplicationInstance");
1511
1512                         CodeCastExpression cast = new CodeCastExpression (appType.FullName, propRef);
1513                         prop.GetStatements.Add (new CodeMethodReturnStatement (cast));
1514 #if NET_2_0
1515                         if (partialClass != null)
1516                                 partialClass.Members.Add (prop);
1517                         else
1518 #endif
1519                         mainClass.Members.Add (prop);
1520                 }
1521
1522                 void CreateAutoHandlers ()
1523                 {
1524                         // Create AutoHandlers property
1525                         CodeMemberProperty prop = new CodeMemberProperty ();
1526                         prop.Type = new CodeTypeReference (typeof (int));
1527                         prop.Name = "AutoHandlers";
1528                         prop.Attributes = MemberAttributes.Family | MemberAttributes.Override;
1529
1530                         CodeMethodReturnStatement ret = new CodeMethodReturnStatement ();
1531                         CodeFieldReferenceExpression fldRef ;
1532                         fldRef = new CodeFieldReferenceExpression (mainClassExpr, "__autoHandlers");
1533                         ret.Expression = fldRef;
1534                         prop.GetStatements.Add (ret);
1535                         prop.SetStatements.Add (new CodeAssignStatement (fldRef, new CodePropertySetValueReferenceExpression ()));
1536
1537 #if NET_2_0
1538                         CodeAttributeDeclaration attr = new CodeAttributeDeclaration ("System.Obsolete");
1539                         prop.CustomAttributes.Add (attr);
1540 #endif
1541
1542                         mainClass.Members.Add (prop);
1543
1544                         // Add the __autoHandlers field
1545                         CodeMemberField fld = new CodeMemberField (typeof (int), "__autoHandlers");
1546                         fld.Attributes = MemberAttributes.Private | MemberAttributes.Static;
1547                         mainClass.Members.Add (fld);
1548                 }
1549
1550                 void CreateAutoEventWireup ()
1551                 {
1552                         // The getter returns false
1553                         CodeMemberProperty prop = new CodeMemberProperty ();
1554                         prop.Type = new CodeTypeReference (typeof (bool));
1555                         prop.Name = "SupportAutoEvents";
1556                         prop.Attributes = MemberAttributes.Family | MemberAttributes.Override;
1557                         prop.GetStatements.Add (new CodeMethodReturnStatement (new CodePrimitiveExpression (false)));
1558                         mainClass.Members.Add (prop);
1559                 }
1560
1561 #if NET_2_0
1562                 protected virtual string HandleUrlProperty (string str, MemberInfo member)
1563                 {
1564                         return str;
1565                 }
1566 #endif
1567
1568                 TypeConverter GetConverterForMember (MemberInfo member)
1569                 {
1570                         TypeConverterAttribute tca = null;
1571                         object[] attrs;
1572
1573 #if NET_2_0
1574                         attrs = member.GetCustomAttributes (typeof (TypeConverterAttribute), true);
1575                         if (attrs.Length > 0)
1576                                 tca = attrs [0] as TypeConverterAttribute;
1577 #else
1578                         attrs = member.GetCustomAttributes (true);
1579
1580                         foreach (object attr in attrs) {
1581                                 tca = attr as TypeConverterAttribute;
1582
1583                                 if (tca != null)
1584                                         break;
1585                         }
1586 #endif
1587
1588                         if (tca == null)
1589                                 return null;
1590
1591                         string typeName = tca.ConverterTypeName;
1592                         if (typeName == null || typeName.Length == 0)
1593                                 return null;
1594
1595                         Type t = null;
1596                         try {
1597                                 t = HttpApplication.LoadType (typeName);
1598                         } catch (Exception) {
1599                                 // ignore
1600                         }
1601
1602                         if (t == null)
1603                                 return null;
1604
1605                         return (TypeConverter) Activator.CreateInstance (t);
1606                 }
1607
1608                 CodeExpression CreateNullableExpression (Type type, CodeExpression inst, bool nullable)
1609                 {
1610 #if NET_2_0
1611                         if (!nullable)
1612                                 return inst;
1613
1614                         return new CodeObjectCreateExpression (
1615                                 type,
1616                                 new CodeExpression[] {inst}
1617                         );
1618 #else
1619                         return inst;
1620 #endif
1621                 }
1622
1623                 bool SafeCanConvertFrom (Type type, TypeConverter cvt)
1624                 {
1625                         try {
1626                                 return cvt.CanConvertFrom (type);
1627                         } catch (NotImplementedException) {
1628                                 return false;
1629                         }
1630                 }
1631
1632                 bool SafeCanConvertTo (Type type, TypeConverter cvt)
1633                 {
1634                         try {
1635                                 return cvt.CanConvertTo (type);
1636                         } catch (NotImplementedException) {
1637                                 return false;
1638                         }
1639                 }
1640
1641                 CodeExpression GetExpressionFromString (Type type, string str, MemberInfo member)
1642                 {
1643                         TypeConverter cvt = GetConverterForMember (member);
1644                         if (cvt != null && !SafeCanConvertFrom (typeof (string), cvt))
1645                                 cvt = null;
1646
1647                         object convertedFromAttr = null;
1648                         bool preConverted = false;
1649                         if (cvt != null && str != null) {
1650                                 convertedFromAttr = cvt.ConvertFromInvariantString (str);
1651                                 if (convertedFromAttr != null) {
1652                                         type = convertedFromAttr.GetType ();
1653                                         preConverted = true;
1654                                 }
1655                         }
1656
1657                         bool wasNullable = false;
1658                         Type originalType = type;
1659 #if NET_2_0
1660                         if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(Nullable<>)) {
1661                                 Type[] types = type.GetGenericArguments();
1662                                 originalType = type;
1663                                 type = types[0]; // we're interested only in the first type here
1664                                 wasNullable = true;
1665                         }
1666 #endif
1667
1668                         if (type == typeof (string)) {
1669                                 if (preConverted)
1670                                         return CreateNullableExpression (originalType,
1671                                                                          new CodePrimitiveExpression ((string) convertedFromAttr),
1672                                                                          wasNullable);
1673
1674 #if NET_2_0
1675                                 object[] urlAttr = member.GetCustomAttributes (typeof (UrlPropertyAttribute), true);
1676                                 if (urlAttr.Length != 0)
1677                                         str = HandleUrlProperty (str, member);
1678 #endif
1679                                 return CreateNullableExpression (originalType, new CodePrimitiveExpression (str), wasNullable);
1680                         }
1681
1682                         if (type == typeof (bool)) {
1683                                 if (preConverted)
1684                                         return CreateNullableExpression (originalType,
1685                                                                          new CodePrimitiveExpression ((bool) convertedFromAttr),
1686                                                                          wasNullable);
1687
1688                                 if (str == null || str == "" || InvariantCompareNoCase (str, "true"))
1689                                         return CreateNullableExpression (originalType, new CodePrimitiveExpression (true), wasNullable);
1690                                 else if (InvariantCompareNoCase (str, "false"))
1691                                         return CreateNullableExpression (originalType, new CodePrimitiveExpression (false), wasNullable);
1692 #if NET_2_0
1693                                 else if (wasNullable && InvariantCompareNoCase(str, "null"))
1694                                         return new CodePrimitiveExpression (null);
1695 #endif
1696                                 else
1697                                         throw new ParseException (currentLocation,
1698                                                         "Value '" + str  + "' is not a valid boolean.");
1699                         }
1700
1701                         if (str == null)
1702                                 return new CodePrimitiveExpression (null);
1703
1704                         if (type.IsPrimitive)
1705                                 return CreateNullableExpression (originalType,
1706                                                                  new CodePrimitiveExpression (
1707                                                                          Convert.ChangeType (preConverted ? convertedFromAttr : str,
1708                                                                                              type, CultureInfo.InvariantCulture)),
1709                                                                  wasNullable);
1710
1711                         if (type == typeof (string [])) {
1712                                 string [] subs;
1713
1714                                 if (preConverted)
1715                                         subs = (string[])convertedFromAttr;
1716                                 else
1717                                         subs = str.Split (',');
1718                                 CodeArrayCreateExpression expr = new CodeArrayCreateExpression ();
1719                                 expr.CreateType = new CodeTypeReference (typeof (string));
1720                                 foreach (string v in subs)
1721                                         expr.Initializers.Add (new CodePrimitiveExpression (v.Trim ()));
1722
1723                                 return CreateNullableExpression (originalType, expr, wasNullable);
1724                         }
1725
1726                         if (type == typeof (Color)) {
1727                                 Color c;
1728
1729                                 if (!preConverted) {
1730                                         if (colorConverter == null)
1731                                                 colorConverter = TypeDescriptor.GetConverter (typeof (Color));
1732
1733                                         if (str.Trim().Length == 0) {
1734                                                 CodeTypeReferenceExpression ft = new CodeTypeReferenceExpression (typeof (Color));
1735                                                 return CreateNullableExpression (originalType,
1736                                                                                  new CodeFieldReferenceExpression (ft, "Empty"),
1737                                                                                  wasNullable);
1738                                         }
1739
1740                                         try {
1741                                                 if (str.IndexOf (',') == -1) {
1742                                                         c = (Color) colorConverter.ConvertFromString (str);
1743                                                 } else {
1744                                                         int [] argb = new int [4];
1745                                                         argb [0] = 255;
1746
1747                                                         string [] parts = str.Split (',');
1748                                                         int length = parts.Length;
1749                                                         if (length < 3)
1750                                                                 throw new Exception ();
1751
1752                                                         int basei = (length == 4) ? 0 : 1;
1753                                                         for (int i = length - 1; i >= 0; i--) {
1754                                                                 argb [basei + i] = (int) Byte.Parse (parts [i]);
1755                                                         }
1756                                                         c = Color.FromArgb (argb [0], argb [1], argb [2], argb [3]);
1757                                                 }
1758                                         } catch (Exception e) {
1759                                                 // Hack: "LightGrey" is accepted, but only for ASP.NET, as the
1760                                                 // TypeConverter for Color fails to ConvertFromString.
1761                                                 // Hence this hack...
1762                                                 if (InvariantCompareNoCase ("LightGrey", str)) {
1763                                                         c = Color.LightGray;
1764                                                 } else {
1765                                                         throw new ParseException (currentLocation,
1766                                                                                   "Color " + str + " is not a valid color.", e);
1767                                                 }
1768                                         }
1769                                 } else
1770                                         c = (Color)convertedFromAttr;
1771
1772                                 if (c.IsKnownColor) {
1773                                         CodeFieldReferenceExpression expr = new CodeFieldReferenceExpression ();
1774                                         if (c.IsSystemColor)
1775                                                 type = typeof (SystemColors);
1776
1777                                         expr.TargetObject = new CodeTypeReferenceExpression (type);
1778                                         expr.FieldName = c.Name;
1779                                         return CreateNullableExpression (originalType, expr, wasNullable);
1780                                 } else {
1781                                         CodeMethodReferenceExpression m = new CodeMethodReferenceExpression ();
1782                                         m.TargetObject = new CodeTypeReferenceExpression (type);
1783                                         m.MethodName = "FromArgb";
1784                                         CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression (m);
1785                                         invoke.Parameters.Add (new CodePrimitiveExpression (c.A));
1786                                         invoke.Parameters.Add (new CodePrimitiveExpression (c.R));
1787                                         invoke.Parameters.Add (new CodePrimitiveExpression (c.G));
1788                                         invoke.Parameters.Add (new CodePrimitiveExpression (c.B));
1789                                         return CreateNullableExpression (originalType, invoke, wasNullable);
1790                                 }
1791                         }
1792
1793                         TypeConverter converter = preConverted ? cvt :
1794                                 wasNullable ? TypeDescriptor.GetConverter (type) :
1795                                 TypeDescriptor.GetProperties (member.DeclaringType) [member.Name].Converter;
1796
1797                         if (preConverted || (converter != null && SafeCanConvertFrom (typeof (string), converter))) {
1798                                 object value = preConverted ? convertedFromAttr : converter.ConvertFromInvariantString (str);
1799
1800                                 if (SafeCanConvertTo (typeof (InstanceDescriptor), converter)) {
1801                                         InstanceDescriptor idesc = (InstanceDescriptor) converter.ConvertTo (value, typeof(InstanceDescriptor));
1802                                         if (wasNullable)
1803                                                 return CreateNullableExpression (originalType, GenerateInstance (idesc, true),
1804                                                                                  wasNullable);
1805
1806                                         return new CodeCastExpression (type, GenerateInstance (idesc, true));
1807                                 }
1808
1809                                 CodeExpression exp = GenerateObjectInstance (value, false);
1810                                 if (exp != null)
1811                                         return CreateNullableExpression (originalType, exp, wasNullable);
1812
1813                                 CodeMethodReferenceExpression m = new CodeMethodReferenceExpression ();
1814                                 m.TargetObject = new CodeTypeReferenceExpression (typeof (TypeDescriptor));
1815                                 m.MethodName = "GetConverter";
1816                                 CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression (m);
1817                                 CodeTypeReference tref = new CodeTypeReference (type);
1818                                 invoke.Parameters.Add (new CodeTypeOfExpression (tref));
1819
1820                                 invoke = new CodeMethodInvokeExpression (invoke, "ConvertFrom");
1821                                 invoke.Parameters.Add (new CodePrimitiveExpression (str));
1822
1823                                 if (wasNullable)
1824                                         return CreateNullableExpression (originalType, invoke, wasNullable);
1825
1826                                 return new CodeCastExpression (type, invoke);
1827                         }
1828
1829                         Console.WriteLine ("Unknown type: " + type + " value: " + str);
1830
1831                         return CreateNullableExpression (originalType, new CodePrimitiveExpression (str), wasNullable);
1832                 }
1833
1834                 CodeExpression GenerateInstance (InstanceDescriptor idesc, bool throwOnError)
1835                 {
1836                         CodeExpression[] parameters = new CodeExpression [idesc.Arguments.Count];
1837                         int n = 0;
1838                         foreach (object ob in idesc.Arguments) {
1839                                 CodeExpression exp = GenerateObjectInstance (ob, throwOnError);
1840                                 if (exp == null) return null;
1841                                 parameters [n++] = exp;
1842                         }
1843
1844                         switch (idesc.MemberInfo.MemberType) {
1845                         case MemberTypes.Constructor:
1846                                 CodeTypeReference tob = new CodeTypeReference (idesc.MemberInfo.DeclaringType);
1847                                 return new CodeObjectCreateExpression (tob, parameters);
1848
1849                         case MemberTypes.Method:
1850                                 CodeTypeReferenceExpression mt = new CodeTypeReferenceExpression (idesc.MemberInfo.DeclaringType);
1851                                 return new CodeMethodInvokeExpression (mt, idesc.MemberInfo.Name, parameters);
1852
1853                         case MemberTypes.Field:
1854                                 CodeTypeReferenceExpression ft = new CodeTypeReferenceExpression (idesc.MemberInfo.DeclaringType);
1855                                 return new CodeFieldReferenceExpression (ft, idesc.MemberInfo.Name);
1856
1857                         case MemberTypes.Property:
1858                                 CodeTypeReferenceExpression pt = new CodeTypeReferenceExpression (idesc.MemberInfo.DeclaringType);
1859                                 return new CodePropertyReferenceExpression (pt, idesc.MemberInfo.Name);
1860                         }
1861                         throw new ParseException (currentLocation, "Invalid instance type.");
1862                 }
1863
1864                 CodeExpression GenerateObjectInstance (object value, bool throwOnError)
1865                 {
1866                         if (value == null)
1867                                 return new CodePrimitiveExpression (null);
1868
1869                         if (value is System.Type) {
1870                                 CodeTypeReference tref = new CodeTypeReference (value.ToString ());
1871                                 return new CodeTypeOfExpression (tref);
1872                         }
1873
1874                         Type t = value.GetType ();
1875
1876                         if (t.IsPrimitive || value is string)
1877                                 return new CodePrimitiveExpression (value);
1878
1879                         if (t.IsArray) {
1880                                 Array ar = (Array) value;
1881                                 CodeExpression[] items = new CodeExpression [ar.Length];
1882                                 for (int n=0; n<ar.Length; n++) {
1883                                         CodeExpression exp = GenerateObjectInstance (ar.GetValue (n), throwOnError);
1884                                         if (exp == null) return null;
1885                                         items [n] = exp;
1886                                 }
1887                                 return new CodeArrayCreateExpression (new CodeTypeReference (t), items);
1888                         }
1889
1890                         TypeConverter converter = TypeDescriptor.GetConverter (t);
1891                         if (converter != null && converter.CanConvertTo (typeof (InstanceDescriptor))) {
1892                                 InstanceDescriptor idesc = (InstanceDescriptor) converter.ConvertTo (value, typeof(InstanceDescriptor));
1893                                 return GenerateInstance (idesc, throwOnError);
1894                         }
1895
1896                         InstanceDescriptor desc = GetDefaultInstanceDescriptor (value);
1897                         if (desc != null) return GenerateInstance (desc, throwOnError);
1898
1899                         if (throwOnError)
1900                                 throw new ParseException (currentLocation, "Cannot generate an instance for the type: " + t);
1901                         else
1902                                 return null;
1903                 }
1904
1905                 InstanceDescriptor GetDefaultInstanceDescriptor (object value)
1906                 {
1907                         if (value is System.Web.UI.WebControls.Unit) {
1908                                 System.Web.UI.WebControls.Unit s = (System.Web.UI.WebControls.Unit) value;
1909                                 ConstructorInfo c = typeof(System.Web.UI.WebControls.Unit).GetConstructor (
1910                                         BindingFlags.Instance | BindingFlags.Public,
1911                                         null,
1912                                         new Type[] {typeof(double), typeof(System.Web.UI.WebControls.UnitType)},
1913                                         null);
1914
1915                                 return new InstanceDescriptor (c, new object[] {s.Value, s.Type});
1916                         }
1917
1918                         if (value is System.Web.UI.WebControls.FontUnit) {
1919                                 System.Web.UI.WebControls.FontUnit s = (System.Web.UI.WebControls.FontUnit) value;
1920
1921                                 Type cParamType = null;
1922                                 object cParam = null;
1923
1924                                 switch (s.Type) {
1925                                         case FontSize.AsUnit:
1926                                         case FontSize.NotSet:
1927                                                 cParamType = typeof (System.Web.UI.WebControls.Unit);
1928                                                 cParam = s.Unit;
1929                                                 break;
1930
1931                                         default:
1932                                                 cParamType = typeof (string);
1933                                                 cParam = s.Type.ToString ();
1934                                                 break;
1935                                 }
1936
1937                                 ConstructorInfo c = typeof(System.Web.UI.WebControls.FontUnit).GetConstructor (
1938                                         BindingFlags.Instance | BindingFlags.Public,
1939                                         null,
1940                                         new Type[] {cParamType},
1941                                         null);
1942                                 if (c != null)
1943                                         return new InstanceDescriptor (c, new object[] {cParam});
1944                         }
1945                         return null;
1946                 }
1947         }
1948 }
1949
1950
1951