Any way to change a workflow StatusCode?

Question

According to dynamics SDK :

The previous operations can also be performed by using the Execute method with the appropriate request messages. Attributes of AsyncOperation other than AsyncOperation.StateCode and AsyncOperation.PostponeUntil should be considered read-only.

Anyway to bypass those read-only?

I have a workflow with a StateCode = "Suspended" and a StatusCode = "Waiting".
I want to change the StatusCode to "Cancelled".

If I simply try to update StatusCode to "Cancelled", it just doesn't save it.

Answer 1

I simply changed the StateCode from Suspended to Terminated. The StatusCode is the automatically updated to Cancelled.