How to Invoke a WF3.5 WorkFlow from a WF4 Workflow

 

任何人kwnos如何做到这一点？

There is no out of the box way of doing this. Basically you have two options:

  • Use WCF to communicate between the 2 workflows. The WF3 workflow would be started by using a Send activity in WF4 sending a message to a WF3 ReceiveActivity. In that case neither has to know about how the other is implemented.
  • Create a custom activity and use that to communicate with the WF3 runtime and start the WF3 workflow.

    • The Interop activity that ships with WF4 doesn't support the WF3 InvokeWorkflowActivity so that is a no go.

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