Oct 162012
 

UPDATE: due to many requests, I have compiled the code below into a project that you can download from here: Validation.zip

To my big surprise the Microsoft team behind the WinRT XAML framework has decided not to include the built-in support for validation that exists in the WPF and Silverlight frameworks. Anyway, for anyone that needs an alternative, I have created a set of helper classes to make things easier.

 Implementing INotifyDataErrorInfo validation in Windows 8 WinRT XAML applications

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