DataAnnotations vs IDataErrorInfo

Question

DataAnnotations vs IDataErrorInfo

Pros and Cons of both? Benefits of one over the other? (especially related to MVC)

Answer 1

Looks like DataAnnotations are getting official support in MVC 2.0. Scott Guthrie published a good article on doing model validation in 2.0 using DataAnnotations. Given that the team seems headed this direction, you might consider that a vote in its favor.