Unique keys in Entity Framework 4

Question

An existing DB schema has unique, non-primary, keys, and some foreign keys that rely on them.

Is it possible to define unique keys, which are not primary keys, in

Answer 1

You can use DataAnnotations validation as well.

I've created this (UniqueAttribute) class, that inherits ValidationAttribute, and when applied to a property, the values of that column will be retrieved and validated against, during validation.

You can grab the raw code from here.