问题
Currently have a simple workflow exposed as a service endpoint. The service correlates on the workflow instance id and everything works as expected (2 service calls available ReceiveBegin, Execute).
My problem is that I would like the user to be able to cancel the long running part of the workflow by calling another Receive on the workflow. Have had a look at the WorkflowApplication.Cancel but as I am running this as a WCF service it doesn't seem to be available.
Documentation seems a bit light on this area and most HOL and examples focus on console apps hosting the workflow.
回答1:
With workflow services the Workflow Control Endpoint and WorkflowControlClient will allow you to cancel workflow instances.
回答2:
Another option is shown in the WF4 Batch Job example
来源：https://stackoverflow.com/questions/5456761/wf-4-wcf-cancel-running-workflow