System.Web.Compilation.TemplateControlCompiler.CreateExtractValuesMethod C# (CSharp) Method

		string CreateExtractValuesMethod (TemplateBuilder builder)
		{
			CodeMemberMethod method = new CodeMemberMethod ();
			method.Name = "__ExtractValues_" + builder.ID;
			method.Attributes = MemberAttributes.Private | MemberAttributes.Final;
			method.ReturnType = new CodeTypeReference (typeof(IOrderedDictionary));
			
			CodeParameterDeclarationExpression arg = new CodeParameterDeclarationExpression ();
			arg.Type = new CodeTypeReference (typeof (Control));
			arg.Name = "__container";
			method.Parameters.Add (arg);
			mainClass.Members.Add (method);
			
			CodeObjectCreateExpression newTable = new CodeObjectCreateExpression ();
			newTable.CreateType = new CodeTypeReference (typeof(OrderedDictionary));
			method.Statements.Add (new CodeVariableDeclarationStatement (typeof(OrderedDictionary), "__table", newTable));
			CodeVariableReferenceExpression tableExp = new CodeVariableReferenceExpression ("__table");
			
			if (builder.Bindings != null) {
				Hashtable hash = new Hashtable ();
				foreach (TemplateBinding binding in builder.Bindings) {
					CodeConditionStatement sif;
					CodeVariableReferenceExpression control;
					CodeAssignStatement assign;

					if (hash [binding.ControlId] == null) {

						CodeVariableDeclarationStatement dec = new CodeVariableDeclarationStatement (binding.ControlType, binding.ControlId);
						method.Statements.Add (dec);
						CodeVariableReferenceExpression cter = new CodeVariableReferenceExpression ("__container");
						CodeMethodInvokeExpression invoke = new CodeMethodInvokeExpression (cter, "FindControl");
						invoke.Parameters.Add (new CodePrimitiveExpression (binding.ControlId));

						assign = new CodeAssignStatement ();
						control = new CodeVariableReferenceExpression (binding.ControlId);
						assign.Left = control;
						assign.Right = new CodeCastExpression (binding.ControlType, invoke);
						method.Statements.Add (assign);

						sif = new CodeConditionStatement ();
						sif.Condition = new CodeBinaryOperatorExpression (control, CodeBinaryOperatorType.IdentityInequality, new CodePrimitiveExpression (null));

						method.Statements.Add (sif);

						hash [binding.ControlId] = sif;
					}

					sif = (CodeConditionStatement) hash [binding.ControlId];
					control = new CodeVariableReferenceExpression (binding.ControlId);
					assign = new CodeAssignStatement ();
					assign.Left = new CodeIndexerExpression (tableExp, new CodePrimitiveExpression (binding.FieldName));
					assign.Right = new CodePropertyReferenceExpression (control, binding.ControlProperty);
					sif.TrueStatements.Add (assign);
				}
			}

			method.Statements.Add (new CodeMethodReturnStatement (tableExp));
			return method.Name;
		}