How reusable should ViewModel classes be?

Posted by stiank81 on Stack Overflow See other posts from Stack Overflow or by stiank81
Published on 2010-03-15T12:30:35Z Indexed on 2010/03/15 12:39 UTC
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.NET

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mvvm

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viewmodel

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wpf

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reusability

I'm working on a WPF application, and I'm structuring it using the MVVM pattern. Initially I had an idea that the ViewModels should be reusable, but now I'm not too sure anymore.

Should I be able to reuse my ViewModels if I need similar functionality for a WinForms application?
Silverlight doesn't support all things WPF does - should I be able to reuse for Silverlight applications?
What if I want to make a Linux GUI for my application. Then I need the ViewModel to build in Mono - is this something I should strive for?
And so on..

So; should one write ViewModel classes with one specific View in mind, or think of reusability?

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