Silverlight4 disable textbox required validation when form loads with initial value (null)

Posted by Jay on Stack Overflow See other posts from Stack Overflow or by Jay
Published on 2010-03-31T15:29:38Z Indexed on 2010/03/31 15:33 UTC
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silverlight-4.0

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validation

I am trying to implement validation using IDataErrorInfo or INotifyDataErrorInfo but either way I am struggling to make it work only once user start entering data or clicking save button. Since I am using MVVM, I am setting my view's datacontext to ViewModel and my ViewModel is implementing IDataErrorInfo / INotifyDataErrorInfo. I need to make sure validation happens but not when form loads up. Anyone has got any suggestion how I can implement?

Thanks

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