Earlier this week the data team released the CTP5 build of the new Entity Framework Code-First library.
In my blog post a few days ago I talked about a few of the improvements introduced with the new CTP5 build. Automatic support for enforcing DataAnnotation validation attributes on models was one of the improvements I discussed. It provides a pretty easy way to enable property-level validation logic within your model layer.
You can apply validation attributes like [Required], [Range], and [RegularExpression] - all of which are built-into .NET 4 - to your model classes in order to enforce that the model properties are valid before they are persi ...
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