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Inheriting from StateMachineWorkflowActivity?

Posted By:      Posted Date: August 29, 2010    Points: 0   Category :WPF
I'm implementing a number of state machine workflows which all have a number of properties and a top level EventDrivenActivity in common. My first approach was to implement the common features in a class inheriting from StateMachineWorkflowActivity and then inherit my workflows from this class. However, this doesn't seem to be supported; specifically: 1. During build, validation fails on my base class because I haven't specified an initial state or final state. I tried adding two empty states to get around this problem, which worked, but then 2. The designer in VS2008 duplicates the activities in my base class when designing my derived class and then complains that it has duplicate component names. For example, I have a state in my base class called RESERVED_INITIAL which is my dummy initial state; when I work with my derived class in the designer, the designer adds a state called RESERVED_INITIAL to the derived class, causing an error because there are now two components with the same name What I want to ask, then, is: 1. Is using inheritance in this sort of way supported, ie, can we create classes that sit between StateMachineWorkflowActivity and actual concrete workflows to factor out common features of those workflows? And if not, 2. Is there a better way to capture the commonality between a number of workflows in a solution? Thanks in advance

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