SynchronizationHandlesCodeDomSerializer.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WF / Common / AuthoringOM / Serializer / SynchronizationHandlesCodeDomSerializer.cs / 1305376 / SynchronizationHandlesCodeDomSerializer.cs
                        

                        
                            namespace System.Workflow.ComponentModel.Serialization 
{
    using System;
    using System.CodeDom;
    using System.ComponentModel; 
    using System.ComponentModel.Design.Serialization;
    using System.Workflow.ComponentModel.Compiler; 
    using System.Collections; 
    using System.Collections.Specialized;
    using System.Collections.Generic; 

    // This serializer will serialize any ICollection object into code statements that constructs the collection.
    // The default serializer serializes the collection as resource because ICollection is serializable.
    // We originally add this serializer to deal with the SynchronizationHandles property on SynchronizationScopeActivity. 
    // It was a problem because this serializer will be invoked for any property of ICollection type.  Now I've
    // made this generic enough to be used by any such properties. 
    internal sealed class SynchronizationHandlesCodeDomSerializer : CodeDomSerializer 
    {
        public override object Serialize(IDesignerSerializationManager manager, object obj) 
        {
            if (manager == null)
                throw new ArgumentNullException("manager");
            if (obj == null) 
                throw new ArgumentNullException("obj");
 
            CodeExpression retVal = null; 
            CodeStatementCollection statements = manager.Context[typeof(CodeStatementCollection)] as CodeStatementCollection;
            System.Diagnostics.Debug.Assert(statements != null); 
            if (statements != null)
            {
                Activity activity = (Activity)manager.Context[typeof(Activity)];
                CodeExpression objectExpression = SerializeToExpression(manager, activity); 
                ICollection handles = obj as ICollection;
                if (handles == null) 
                    throw new ArgumentException(SR.GetString(SR.Error_UnexpectedArgumentType, typeof(StringCollection).FullName), "obj"); 

                string variableName = GetUniqueName(manager, new StringCollection()); 
                statements.Add(new CodeVariableDeclarationStatement(obj.GetType(), variableName, new CodeObjectCreateExpression(obj.GetType())));

                foreach (string handle in handles)
                    statements.Add(new CodeMethodInvokeExpression(new CodeMethodReferenceExpression(new CodeVariableReferenceExpression(variableName), "Add"), new CodeExpression[] { new CodePrimitiveExpression(handle) })); 

                retVal = new CodeVariableReferenceExpression(variableName); 
            } 
            return retVal;
        } 
    }
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.

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