With MVVM, does each UI window have its own ViewModel?

Posted by j0rd4n on Stack Overflow See other posts from Stack Overflow or by j0rd4n
Published on 2010-05-07T16:55:27Z Indexed on 2010/05/07 16:58 UTC
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mvvm

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wpf

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best-practices

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design-patterns

When I'm designing multiple views under the MVVM pattern, does each view get its own ViewModel or do they all share the same one? I understand that this is ultimately a flexible decision, but what is the best practice?

My gut tells me to have a ViewModel for each view (i.e. each separate UI window). All of the blog examples of MVVM show a single view but not much beyond that.

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