58 lines
1.6 KiB
C#
58 lines
1.6 KiB
C#
//------------------------------------------------------------
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//------------------------------------------------------------
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namespace System.Activities
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{
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using System.Activities.Runtime;
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using System.Runtime;
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[Fx.Tag.XamlVisible(false)]
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public sealed class AsyncCodeActivityContext : CodeActivityContext
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{
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AsyncOperationContext asyncContext;
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internal AsyncCodeActivityContext(AsyncOperationContext asyncContext, ActivityInstance instance, ActivityExecutor executor)
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: base(instance, executor)
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{
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this.asyncContext = asyncContext;
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}
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public bool IsCancellationRequested
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{
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get
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{
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ThrowIfDisposed();
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return this.CurrentInstance.IsCancellationRequested;
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}
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}
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public object UserState
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{
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get
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{
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ThrowIfDisposed();
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return this.asyncContext.UserState;
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}
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set
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{
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ThrowIfDisposed();
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this.asyncContext.UserState = value;
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}
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}
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public void MarkCanceled()
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{
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ThrowIfDisposed();
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// This is valid to be called while aborting or while canceling
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if (!this.CurrentInstance.IsCancellationRequested && !this.asyncContext.IsAborting)
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{
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throw FxTrace.Exception.AsError(new InvalidOperationException(SR.MarkCanceledOnlyCallableIfCancelRequested));
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}
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this.CurrentInstance.MarkCanceled();
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}
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}
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}
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