UPDATE: I’ve updated this post to cover changes to client validation made in ASP.NET MVC 2 RC 2. This is the third post in my series ASP.NET MVC 2 Beta and its new features. ASP.NET MVC 2 Beta Released (Release Announcement) Html.RenderAction and Html.Action ASP.NET MVC 2 Custom Validation In this post I will cover validation. No, not that kind of validation, though I do think you’re good enough,