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WorkflowApplication::Terminate Method (Exception)

Terminates a workflow instance using the specified exception.

Namespace:  System.Activities
Assembly:  System.Activities (in System.Activities.dll)

public:
void Terminate(
	Exception^ reason
)

Parameters

reason
Type: System::Exception
The reason for terminating the workflow instance.

This method schedules the termination of the workflow instance. To be notified when the termination has completed, use the OnCompleted() handle.

By default, the Terminate(Exception) operation must complete in 30 seconds or a TimeoutException is thrown.

The following example hosts a workflow using WorkflowApplication. A WorkflowApplication instance is constructed using the specified workflow definition, the desired workflow lifecycle events are handled, and the workflow is invoked with a call to Run(). After the workflow is started, Terminate(Exception) is called. When the workflow is terminated, the following output is displayed to the console.

Starting the workflow. Workflow e6b33409-f010-49f1-82ce-56f8baabe5e5 Terminated.Exception: System.ApplicationExceptionTerminating the workflow. Workflow e6b33409-f010-49f1-82ce-56f8baabe5e5 unloaded. 

Activity wf = new Sequence
{
    Activities =
     {
         new WriteLine
         {
             Text = "Starting the workflow."
         },
         new Delay
         {
             Duration = TimeSpan.FromSeconds(5)
         },
         new WriteLine
         {
             Text = "Ending the workflow."
         }
     }
};

// Create a WorkflowApplication instance.
WorkflowApplication wfApp = new WorkflowApplication(wf);

// Subscribe to any desired workflow lifecycle events.
wfApp.Completed = delegate(WorkflowApplicationCompletedEventArgs e)
{
    if (e.CompletionState == ActivityInstanceState.Faulted)
    {
        Console.WriteLine("Workflow {0} Terminated.", e.InstanceId);
        Console.WriteLine("Exception: {0}\n{1}",
            e.TerminationException.GetType().FullName,
            e.TerminationException.Message);
    }
    else if (e.CompletionState == ActivityInstanceState.Canceled)
    {
        Console.WriteLine("Workflow {0} Canceled.", e.InstanceId);
    }
    else
    {
        Console.WriteLine("Workflow {0} Completed.", e.InstanceId);

        // Outputs can be retrieved from the Outputs dictionary,
        // keyed by argument name.
        // Console.WriteLine("The winner is {0}.", e.Outputs["Winner"]);
    }
};

wfApp.Unloaded = delegate(WorkflowApplicationEventArgs e)
{
    Console.WriteLine("Workflow {0} unloaded.", e.InstanceId);
};

// Run the workflow.
wfApp.Run();

Thread.Sleep(TimeSpan.FromSeconds(1));

wfApp.Terminate(new ApplicationException("Terminating the workflow."));


.NET Framework

Supported in: 4

.NET Framework Client Profile

Supported in: 4

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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