EmptyWithCancelationCheckWorkItem.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 / EmptyWithCancelationCheckWorkItem.cs / 1305376 / EmptyWithCancelationCheckWorkItem.cs
                        

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

namespace System.Activities.Runtime 
{
    using System; 
    using System.Runtime; 
    using System.Reflection;
    using System.Runtime.Serialization; 
    using System.Diagnostics.CodeAnalysis;

    [DataContract]
    class EmptyWithCancelationCheckWorkItem : ActivityExecutionWorkItem 
    {
        [DataMember] 
        ActivityInstance completedInstance; 

        public EmptyWithCancelationCheckWorkItem(ActivityInstance activityInstance, ActivityInstance completedInstance) 
            : base(activityInstance)
        {
            this.completedInstance = completedInstance;
            this.IsEmpty = true; 
        }
 
        public override void TraceCompleted() 
        {
            TraceRuntimeWorkItemCompleted(); 
        }

        public override void TraceScheduled()
        { 
            TraceRuntimeWorkItemScheduled();
        } 
 
        public override void TraceStarting()
        { 
            TraceRuntimeWorkItemStarting();
        }

        public override bool Execute(ActivityExecutor executor, BookmarkManager bookmarkManager) 
        {
            Fx.Assert("Empty work items should never been executed."); 
 
            return true;
        } 

        public override void PostProcess(ActivityExecutor executor)
        {
            if (this.completedInstance.State != ActivityInstanceState.Closed && this.ActivityInstance.IsPerformingDefaultCancelation) 
            {
                this.ActivityInstance.MarkCanceled(); 
            } 

            base.PostProcess(executor); 
        }
    }
}

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

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