While the feedback on .NET RIA Services has been great, many people have commented on the way we store metadata as custom attributes on ?buddy? classes of entities. For example, in my Mix demo to get automatic validation like this: I had to provide metadata on my entity class on the server like this: This is very cool and I believe works just fine in a lot of scenarios. But sometimes you want to pull metadata from another source. For example from a database or from calling a web service or by looking in an external metadata file. So with the .NET RIA Services May Preview we added a neat little sample that shows how to build your own metadata provider and a specific implementation that works with an external metadata file. I?d expect you can...(read more) ...
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