CompletionBookmark.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 / NetFx40 / System.Activities / System / Activities / Runtime / CompletionBookmark.cs / 1305376 / CompletionBookmark.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------------------------

namespace System.Activities.Runtime 
{
    using System; 
    using System.Runtime; 
    using System.Runtime.Serialization;
    using System.Collections.Generic; 

    [DataContract]
    class CompletionBookmark
    { 
        [DataMember(EmitDefaultValue = false)]
        CompletionCallbackWrapper callbackWrapper; 
 
        public CompletionBookmark()
        { 
            // Called when we want to use the special completion callback
        }

        public CompletionBookmark(CompletionCallbackWrapper callbackWrapper) 
        {
            this.callbackWrapper = callbackWrapper; 
        } 

        public void CheckForCancelation() 
        {
            Fx.Assert(this.callbackWrapper != null, "We must have a callback wrapper if we are calling this.");
            this.callbackWrapper.CheckForCancelation();
        } 

        public WorkItem GenerateWorkItem(ActivityInstance completedInstance, ActivityExecutor executor) 
        { 
            if (this.callbackWrapper != null)
            { 
                return this.callbackWrapper.CreateWorkItem(completedInstance, executor);
            }
            else
            { 
                // Variable defaults and argument expressions always have a parent
                // and never have a CompletionBookmark 
                if (completedInstance.State != ActivityInstanceState.Closed && completedInstance.Parent.HasNotExecuted) 
                {
                    completedInstance.Parent.SetInitializationIncomplete(); 
                }

                return new EmptyWithCancelationCheckWorkItem(completedInstance.Parent, completedInstance);
            } 
        }
    } 
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

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