66 lines
2.5 KiB
C#
66 lines
2.5 KiB
C#
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//-----------------------------------------------------------------------------
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//-----------------------------------------------------------------------------
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namespace System.Activities.Statements
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{
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using System;
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using System.Activities;
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using System.ComponentModel;
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using System.Collections.ObjectModel;
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public sealed class TerminateWorkflow : NativeActivity
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{
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public TerminateWorkflow() { }
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[DefaultValue(null)]
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public InArgument<string> Reason { get; set; }
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[DefaultValue(null)]
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public InArgument<Exception> Exception { get; set; }
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protected override void CacheMetadata(NativeActivityMetadata metadata)
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{
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Collection<RuntimeArgument> arguments = new Collection<RuntimeArgument>();
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RuntimeArgument reasonArgument = new RuntimeArgument("Reason", typeof(string), ArgumentDirection.In, false);
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metadata.Bind(this.Reason, reasonArgument);
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RuntimeArgument exceptionArgument = new RuntimeArgument("Exception", typeof(Exception), ArgumentDirection.In, false);
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metadata.Bind(this.Exception, exceptionArgument);
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arguments.Add(reasonArgument);
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arguments.Add(exceptionArgument);
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metadata.SetArgumentsCollection(arguments);
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if ((this.Reason == null || this.Reason.IsEmpty) &&
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(this.Exception == null || this.Exception.IsEmpty))
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{
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metadata.AddValidationError(SR.OneOfTwoPropertiesMustBeSet("Reason", "Exception", "TerminateWorkflow", this.DisplayName));
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}
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}
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protected override void Execute(NativeActivityContext context)
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{
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// If Reason is provided, we'll create a WorkflowApplicationTerminatedException from
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// it, wrapping Exception if it is also provided. Otherwise just use Exception.
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// If neither is provided just throw a new WorkflowTerminatedException.
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string reason = Reason.Get(context);
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Exception exception = Exception.Get(context);
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if (!string.IsNullOrEmpty(reason))
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{
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context.Terminate(new WorkflowTerminatedException(reason, exception));
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}
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else if (exception != null)
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{
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context.Terminate(exception);
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}
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else
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{
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context.Terminate(new WorkflowTerminatedException());
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}
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}
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}
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}
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