Loading a Workflow Instance causes an InstanceLockedException

Question

I'm implementing functionality to attempt to cancel a workflow instance that is currently in an executing state. I'm using the .NET Cancel() method for a WorkflowApplication, but first I believe I'm required to Load the instance:

wf.Load(id);

then

wf.Cancel();

With the Load method, I get an InstanceLockedException. There is only one workflow host - which in this case is a windows Service running locally on my machine. I believe the instance is locked by the workflow service ... is there a way to get around this?

Answer 1

If the workflow is in an executing state then you have already loaded it.

Try wf.Cancel(); on the instance you have executing.