I've received the project you sent. Yes, based on the project you provided,
I've repro the same behavior. I found that the project contains some .net
2.0 properties, is this project comes from upgrading an existing .net 2.0
vb.net project? I think this maybe the cause and there may has something
different of the design-time code validation against the LINQ code.
I've tried move the same code in your project into a new created VS 2008
.NET 3.5 project and it works correctly.
Would you also have a try on this or whether your scenario is not as I've
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