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:
views:
255answers:
2
                +3 
                A: 
                
                
              
            Maybe you should import or reference System.ComponentModel manually?
                  Ropstah
                   2009-08-27 12:19:33
                
              
                +1 
                A: 
                
                
              You need .NET 3.5 sp1 installed. Its not distributed with MVC 2.0. I think what they're talking about is that System.ComponentModel.DataAnnotations.dll, which contains the DataAnnotations-compatible model binders, is being shipped whereas it wasn't with 1.0...
                  Will
                   2009-08-27 12:21:36
                
              im 99% sure you need SP1 to run MVC at all - because of the routing infrastructure
                  Simon_Weaver
                   2009-08-30 01:08:10
                Where are these DataAnnotations-compatible modelbinders?
                  Maslow
                   2009-11-18 18:50:49