Thanks. That's pretty much what I do. In fact, I have some business rules validation to wire up today. Your method gives me some things to think about when I write the code.

>Yes and no. Modelbinding validation only takes you so far. If you have dynamic rules then model based validation falls apart.
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>I do use the validation attributes on the entity model, but only for basic stuff like empty values, ranges etc.. Ultimately, I want validation logic in my business object that can check it all. My business layer looks at validation errors that are internally assigned (via an OnValidate() method that allow for easy coded rules) or those that are fired via validation errors on the entity model when the model is saved by EF, so it works either way.
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>Modelbinding by itself is not enough IMHO...
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>+++ Rick ---