.NET: System.ComponentModel.DataAnnotations

Question

Can someone point me to a web-/screencast or tutorial--video preferrably--that explains this new namespace and how I can use it to help validate data like user input? Pretty please.

Answer 1

Try this (sorry, not visual):

ASP.NET MVC Tip #43 – Use Data Annotation Validators:

In this tip, I demonstrate how to take advantage of the validators from the System.ComponentModel.DataAnnotations namespace in an MVC application. You can take advantage of these validators to validate form data before submitting the form data into a database.