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In this episode I'll show you the new WF4 State Machine Driven WPF UI sample. This application uses a state machine to drive the UI enabling and disabling commands as the states change. I learned a lot by writing this sample using the Model-View-ViewModel (MVVM) pattern and by implementing unit tests using some great new features I added to the Microsoft.Activities.UnitTesting library.
Update: Be sure to check out a better version of the State Machine Driven WPF UI as well.
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