ScottGu says .NET MVC 2.0 has built in DataAnnotation support, I think that means I don’t need to download the DataAnnotation DLLs separately, but when I installed MVC 2.0 and try to use System.ComponentModel.DataAnnotations, my VWD prompts an error message:
ScottGu says .NET MVC 2.0 has built in DataAnnotation support, I think that means
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Maybe you should import or reference System.ComponentModel manually?