WPF DataTemplate / DataTemplateSelector — Best approach for a ViewModel used by 2 different Views?

I agree with krishnaaditya that the question really boils down to what determines which View to use based on the state of the ViewModel. This type of logic is often placed into a template selector, which works great. If you don't want to put that logic into the template selector, consider externalizing it by using my Routed Template Selection approach.

That makes it easy to delegate the template selection logic by using a routed event.

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