WorkflowApplication.BeginCancel Method (AsyncCallback, Object)
Cancels a workflow instance asynchronously using the specified AsyncCallback and user-provided state.
Assembly: System.Activities (in System.Activities.dll)
'Declaration Public Function BeginCancel ( _ callback As AsyncCallback, _ state As Object _ ) As IAsyncResult
- Type: System.AsyncCallback
The method to be called when the cancel operation has completed.
- Type: System.Object
An optional application-specific object that contains information about the asynchronous operation.
Return ValueType: System.IAsyncResult
A reference to the asynchronous cancel operation.
To determine whether the cancel operation was successful, call EndCancel. EndCancel can be called from inside or outside of the callback method. If EndCancel is called before the cancel operation completes, it blocks until the cancel operation completes. By default, the cancel operation must complete in 30 seconds or a TimeoutException is thrown from EndCancel.