Validate data using DataAnnotations with WPF & Entity Framework?

Question

Is there any way to validate using DataAnnotations in WPF & Entity Framework?

Answer 1

In .NET 4, there is validation support in Entity-Framework using this extension, check out: http://blogs.msdn.com/adonet/archive/2010/01/13/introducing-the-portable-extensible-metadata.aspx

I am not sure if it does use DataAnnotations tho.

UPDATE
I tried it with VB.NET and it didn't work, I think it only supports C# projects.