62 lines
1.8 KiB
C#
62 lines
1.8 KiB
C#
//-----------------------------------------------------------------------------
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//-----------------------------------------------------------------------------
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namespace System.Activities.Runtime
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{
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using System;
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using System.Activities.DynamicUpdate;
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using System.Runtime;
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using System.Runtime.Serialization;
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using System.Collections.ObjectModel;
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[DataContract]
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class ActivityInstanceReference : ActivityInstanceMap.IActivityReference
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{
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ActivityInstance activityInstance;
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internal ActivityInstanceReference(ActivityInstance activity)
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{
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this.activityInstance = activity;
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}
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[DataMember(Name = "activityInstance")]
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internal ActivityInstance SerializedActivityInstance
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{
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get { return this.activityInstance; }
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set { this.activityInstance = value; }
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}
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Activity ActivityInstanceMap.IActivityReference.Activity
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{
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get
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{
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return this.activityInstance.Activity;
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}
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}
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public ActivityInstance ActivityInstance
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{
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get
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{
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return this.activityInstance;
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}
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}
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void ActivityInstanceMap.IActivityReference.Load(Activity activity, ActivityInstanceMap instanceMap)
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{
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// The conditional calling of ActivityInstance.Load is the value
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// added by this wrapper class. This is because we can't guarantee
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// that multiple activities won't have a reference to the same
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// ActivityInstance.
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if (this.activityInstance.Activity == null)
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{
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((ActivityInstanceMap.IActivityReference)this.activityInstance).Load(activity, instanceMap);
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}
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}
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}
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}
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