Hello, I am developing a web application with data annotation in my entities classes to validate controls in the presentation layer for example with MVC, but I don't want to use MS MVC, I want use EXT. NET Controls..

Here is a example with MVC and Dataanotattions validation:http://www.asp.net/mvc/tutorials/val...-validators-cs

If isn't posibble use dataannotation with Ext .NET then What do you recomend me ? some validation framework?