C# CodeStatementCollection.Add方法代码示例

        public static CodeStatementCollection BuildDetectChangedMembers(TableViewTableTypeBase table)
        {
            CodeStatementCollection ValidationSetStatement = new CodeStatementCollection();
            String PocoTypeName = "this";
            ValidationSetStatement.Add(new CodeSnippetExpression("Boolean bResult = new Boolean()"));
            ValidationSetStatement.Add(new CodeSnippetExpression("bResult = false"));

            foreach (Column c in table.Columns)
            {
                MemberGraph mGraph = new MemberGraph(c);
                CodeConditionStatement csTest1 = new CodeConditionStatement();

                if (mGraph.IsNullable)
                {
                    csTest1.Condition = new CodeSnippetExpression(PocoTypeName + "." + mGraph.PropertyName() + ".HasValue == true");
                    csTest1.TrueStatements.Add(new CodeSnippetExpression("bResult = true"));
                }
                else
                {
                    csTest1.Condition = new CodeSnippetExpression(PocoTypeName + "." + mGraph.PropertyName() + " == null");
                    csTest1.TrueStatements.Add(new CodeSnippetExpression(""));
                    csTest1.FalseStatements.Add(new CodeSnippetExpression("bResult = true"));
                }
            }

            return ValidationSetStatement;
        }

 public override void ToCodeDom(CodeStatementCollection statements)
 {
     if (this.expression!=null)
         statements.Add(new CodeExpressionStatement(this.expression.ToCodeDom()));
     else
         statements.Add(new CodeStatement());
 }

		public override object Serialize (IDesignerSerializationManager manager, object value)
		{
			if (value == null)
				throw new ArgumentNullException ("value");
			if (manager == null)
				throw new ArgumentNullException ("manager");

			object serialized = null;
			string name = manager.GetName (value);

			ExpressionContext exprContext = manager.Context[typeof (ExpressionContext)] as ExpressionContext;
			if (exprContext != null && exprContext.PresetValue == value) {
				CodeStatementCollection statements = new CodeStatementCollection ();
				bool isComplete = true;

				statements.Add (new CodeCommentStatement (String.Empty));
				statements.Add (new CodeCommentStatement (name));
				statements.Add (new CodeCommentStatement (String.Empty));
				statements.Add (new CodeAssignStatement (GetFieldReference (manager, name), 
														 base.SerializeCreationExpression (manager, value, out isComplete)));
				base.SerializeProperties (manager, statements, value, new Attribute[0]);
				base.SerializeEvents (manager, statements, value);
				serialized = statements;
			} else {
				serialized = base.Serialize (manager, value);
			}

			return serialized;
		}

        protected CodeStatementCollection GenerateSetMappedPropertyCode(CodeExpression targetObj, CodeExpression value)
        {
            CodeStatementCollection statements = new CodeStatementCollection();

            CodePropertyReferenceExpression property = new CodePropertyReferenceExpression(targetObj, MappedProperty.Name);

            if (_mappedProperty.PropertyType.IsArray)
            {
                statements.Add(new CodeAssignStatement(
                    new CodeIndexerExpression(property, new CodePrimitiveExpression(_index)), value));
                return statements;
            }

            if (IsCollection(_mappedProperty.PropertyType))
            {
                CodeBinaryOperatorExpression isNull =
                    new CodeBinaryOperatorExpression(property, CodeBinaryOperatorType.ValueEquality, new CodeSnippetExpression("null"));
                CodeAssignStatement create = new CodeAssignStatement(property, new CodeObjectCreateExpression(_mappedProperty.PropertyType));

                statements.Add(new CodeConditionStatement(isNull, create));
                statements.Add(new CodeMethodInvokeExpression(property, "Add", value));
                return statements;
            }

            statements.Add(new CodeAssignStatement(property, value));
            return statements;
        }

 public override object Serialize(IDesignerSerializationManager manager, object value)
 {
     CodeExpression expression;
     CodeTypeDeclaration declaration = manager.Context[typeof(CodeTypeDeclaration)] as CodeTypeDeclaration;
     RootContext context = manager.Context[typeof(RootContext)] as RootContext;
     CodeStatementCollection statements = new CodeStatementCollection();
     if ((declaration != null) && (context != null))
     {
         CodeMemberField field = new CodeMemberField(typeof(IContainer), "components") {
             Attributes = MemberAttributes.Private
         };
         declaration.Members.Add(field);
         expression = new CodeFieldReferenceExpression(context.Expression, "components");
     }
     else
     {
         CodeVariableDeclarationStatement statement = new CodeVariableDeclarationStatement(typeof(IContainer), "components");
         statements.Add(statement);
         expression = new CodeVariableReferenceExpression("components");
     }
     base.SetExpression(manager, value, expression);
     CodeObjectCreateExpression right = new CodeObjectCreateExpression(typeof(Container), new CodeExpression[0]);
     CodeAssignStatement statement2 = new CodeAssignStatement(expression, right);
     statement2.UserData["IContainer"] = "IContainer";
     statements.Add(statement2);
     return statements;
 }

 public void AddCommentStatement(CodeStatementCollection statements, string comment)
 {
     switch (TargetLanguage)
     {
         case GenerationTargetLanguage.CSharp:
             statements.Add(new CodeSnippetStatement("//" + comment));
             break;
         case GenerationTargetLanguage.VB:
             statements.Add(new CodeSnippetStatement("'" + comment));
             break;
     }
 }

 internal static void BuildExpressionSetup(ControlBuilder controlBuilder, CodeStatementCollection methodStatements, CodeStatementCollection statements)
 {
     CodeVariableDeclarationStatement statement = new CodeVariableDeclarationStatement(controlBuilder.ControlType, "dataBindingExpressionBuilderTarget");
     methodStatements.Add(statement);
     CodeVariableReferenceExpression left = new CodeVariableReferenceExpression(statement.Name);
     CodeAssignStatement statement2 = new CodeAssignStatement(left, new CodeCastExpression(controlBuilder.ControlType, new CodeArgumentReferenceExpression("sender")));
     statements.Add(statement2);
     Type bindingContainerType = controlBuilder.BindingContainerType;
     CodeVariableDeclarationStatement statement3 = new CodeVariableDeclarationStatement(bindingContainerType, "Container");
     methodStatements.Add(statement3);
     CodeAssignStatement statement4 = new CodeAssignStatement(new CodeVariableReferenceExpression(statement3.Name), new CodeCastExpression(bindingContainerType, new CodePropertyReferenceExpression(left, "BindingContainer")));
     statements.Add(statement4);
 }

		public override void Serialize (IDesignerSerializationManager manager, object value, MemberDescriptor descriptor, CodeStatementCollection statements)
		{
			if (statements == null)
				throw new ArgumentNullException ("statements");
			if (manager == null)
				throw new ArgumentNullException ("manager");
			if (value == null)
				throw new ArgumentNullException ("value");
			if (descriptor == null)
				throw new ArgumentNullException ("descriptor");

			IEventBindingService service = manager.GetService (typeof (IEventBindingService)) as IEventBindingService;
			if (service != null) {
				// In the propertygrid the events are represented by PropertyDescriptors and the value is a string
				// which contains the method name to bind to. The propertydescriptors are managed and created by the 
				// IEventBindingService
				// 
				EventDescriptor ev = (EventDescriptor) descriptor;
				string methodName = (string) service.GetEventProperty (ev).GetValue (value);
				CodeDelegateCreateExpression listener = new CodeDelegateCreateExpression (new CodeTypeReference (ev.EventType), _thisReference, methodName);
				CodeExpression targetObject = base.SerializeToExpression (manager, value);
				CodeEventReferenceExpression eventRef = new CodeEventReferenceExpression (targetObject, ev.Name);
				statements.Add (new CodeAttachEventStatement (eventRef, listener));
			}
		}

        internal static void BuildExpressionSetup(ControlBuilder controlBuilder, CodeStatementCollection methodStatements, CodeStatementCollection statements, CodeLinePragma linePragma, bool isTwoWayBound, bool designerMode) {
            // {{controlType}} target;
            CodeVariableDeclarationStatement targetDecl = new CodeVariableDeclarationStatement(controlBuilder.ControlType, "dataBindingExpressionBuilderTarget");
            methodStatements.Add(targetDecl);

            CodeVariableReferenceExpression targetExp = new CodeVariableReferenceExpression(targetDecl.Name);

            // target = ({{controlType}}) sender;
            CodeAssignStatement setTarget = new CodeAssignStatement(targetExp,
                                                                    new CodeCastExpression(controlBuilder.ControlType,
                                                                                           new CodeArgumentReferenceExpression("sender")));
            setTarget.LinePragma = linePragma;
            statements.Add(setTarget);

            Type bindingContainerType = controlBuilder.BindingContainerType;
            CodeVariableDeclarationStatement containerDecl = new CodeVariableDeclarationStatement(bindingContainerType, "Container");
            methodStatements.Add(containerDecl);

            // {{containerType}} Container = ({{containerType}}) target.BindingContainer;
            CodeAssignStatement setContainer = new CodeAssignStatement(new CodeVariableReferenceExpression(containerDecl.Name),
                                                                       new CodeCastExpression(bindingContainerType,
                                                                                              new CodePropertyReferenceExpression(targetExp,
                                                                                                                                  "BindingContainer")));
            setContainer.LinePragma = linePragma;
            statements.Add(setContainer);
            string variableName = isTwoWayBound ? "BindItem" : "Item";
            GenerateItemTypeExpressions(controlBuilder, methodStatements, statements, linePragma, variableName);
            //Generate code for other variable as well at design time in addition to runtime variable for intellisense to work.
            if (designerMode) {
                GenerateItemTypeExpressions(controlBuilder, methodStatements, statements, linePragma, isTwoWayBound ?  "Item" : "BindItem");
            }
        }

		public virtual object Serialize (IDesignerSerializationManager manager, object value)
		{
			if (value == null)
				throw new ArgumentNullException ("value");
			if (manager == null)
				throw new ArgumentNullException ("manager");

			object serialized = null;
			bool isComplete = false;
			CodeExpression createExpr = base.SerializeCreationExpression (manager, value, out isComplete);
			if (isComplete) {
				serialized = createExpr;
				base.SetExpression (manager, value, createExpr);
			} else {
				ExpressionContext context = manager.Context[typeof (ExpressionContext)] as ExpressionContext;
				if (context != null && context.PresetValue == value) {
					CodeStatementCollection statements = new CodeStatementCollection ();
					statements.Add (new CodeAssignStatement (context.Expression, createExpr));
					base.SerializeProperties (manager, statements, value, new Attribute[0]);
					base.SerializeEvents (manager, statements, value, new Attribute[0]);
				} else {
					CodeExpression expression = base.GetExpression (manager, value);
					if (expression == null) {
						serialized = expression = createExpr;
						base.SetExpression (manager, value, expression);
					}
				}
			}
			return serialized;
		}

 public override void ToCodeDom(CodeStatementCollection statements)
 {
     statements.Add(new CodeAssignStatement(
         left.ToCodeDom(),
         right.ToCodeDom()
         ));
 }

        internal static void BuildEvalExpression(string field, string formatString, string propertyName,
            Type propertyType, ControlBuilder controlBuilder, CodeStatementCollection methodStatements, CodeStatementCollection statements, CodeLinePragma linePragma, bool isEncoded, ref bool hasTempObject) {

            // Altogether, this function will create a statement that looks like this:
            // if (this.Page.GetDataItem() != null) {
            //     target.{{propName}} = ({{propType}}) this.Eval(fieldName, formatString);
            // }

            //     this.Eval(fieldName, formatString)
            CodeMethodInvokeExpression evalExpr = new CodeMethodInvokeExpression();
            evalExpr.Method.TargetObject = new CodeThisReferenceExpression();
            evalExpr.Method.MethodName = EvalMethodName;
            evalExpr.Parameters.Add(new CodePrimitiveExpression(field));
            if (!String.IsNullOrEmpty(formatString)) {
                evalExpr.Parameters.Add(new CodePrimitiveExpression(formatString));
            }

            CodeStatementCollection evalStatements = new CodeStatementCollection();
            BuildPropertySetExpression(evalExpr, propertyName, propertyType, controlBuilder, methodStatements, evalStatements, linePragma, isEncoded, ref hasTempObject);

            // if (this.Page.GetDataItem() != null)
            CodeMethodInvokeExpression getDataItemExpr = new CodeMethodInvokeExpression();
            getDataItemExpr.Method.TargetObject = new CodePropertyReferenceExpression(new CodeThisReferenceExpression(), "Page");
            getDataItemExpr.Method.MethodName = GetDataItemMethodName;

            CodeConditionStatement ifStmt = new CodeConditionStatement();
            ifStmt.Condition = new CodeBinaryOperatorExpression(getDataItemExpr, 
                                                                CodeBinaryOperatorType.IdentityInequality, 
                                                                new CodePrimitiveExpression(null));
            ifStmt.TrueStatements.AddRange(evalStatements);
            statements.Add(ifStmt);
        }

 private void BuildControlSkins(CodeStatementCollection statements) {
     foreach (ControlSkinBuilderEntry entry in _controlSkinBuilderEntryList) {
         string skinID = entry.SkinID;
         ControlBuilder builder = entry.Builder;
         statements.Add(BuildControlSkinAssignmentStatement(builder, skinID));
     }
 }

		public override void Serialize (IDesignerSerializationManager manager, object value, MemberDescriptor descriptor, 
						CodeStatementCollection statements)
		{
			if (statements == null)
				throw new ArgumentNullException ("statements");
			if (manager == null)
				throw new ArgumentNullException ("manager");
			if (value == null)
				throw new ArgumentNullException ("value");
			if (descriptor == null)
				throw new ArgumentNullException ("descriptor");

			IEventBindingService service = manager.GetService (typeof (IEventBindingService)) as IEventBindingService;
			if (service != null) {
				EventDescriptor eventDescriptor = (EventDescriptor) descriptor;
				string methodName = (string) service.GetEventProperty (eventDescriptor).GetValue (value);

				if (methodName != null) {
					CodeDelegateCreateExpression listener = new CodeDelegateCreateExpression (new CodeTypeReference (eventDescriptor.EventType),
																							   _thisReference, methodName);
					CodeExpression targetObject = base.SerializeToExpression (manager, value);
					CodeEventReferenceExpression eventRef = new CodeEventReferenceExpression (targetObject, eventDescriptor.Name);
					statements.Add (new CodeAttachEventStatement (eventRef, listener));
				}
			}
		}

		public virtual object Serialize (IDesignerSerializationManager manager, object value)
		{
			if (value == null)
				throw new ArgumentNullException ("value");
			if (manager == null)
				throw new ArgumentNullException ("manager");

			bool isComplete = true;
			CodeStatementCollection statements = new CodeStatementCollection ();
			ExpressionContext context = manager.Context[typeof (ExpressionContext)] as ExpressionContext;
			object serialized = null;

			if (context != null && context.PresetValue == value) {
				string varName = base.GetUniqueName (manager, value);
				CodeVariableDeclarationStatement statement = new CodeVariableDeclarationStatement (value.GetType (), varName); // declare
				statement.InitExpression = base.SerializeCreationExpression (manager, value, out isComplete); // initialize
				base.SetExpression (manager, value, statement.InitExpression);
				statements.Add (statement);
				serialized = statement;
			} else {
				string name = manager.GetName (value);
				if (name == null)
					name = base.GetUniqueName (manager, value);
				serialized = GetFieldReference (manager, name);
			}

			base.SerializeProperties (manager, statements, value, new Attribute[0]);
			base.SerializeEvents (manager, statements, value, new Attribute[0]);

			return serialized;
		}