While writing my tips series and writing EF controllers for MVC I found that I regularly wanted to create and attach a stub entity . Unfortunately it isn’t quite that simple, you have to make sure the entity isn’t already attached first, otherwise you’ll
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UPDATE: as Joe rightly points out in the comments (thanks Joe) when you try to pass a Func<T,V> to a method expecting Action<T> using lambda syntax it doesn't fail. Somehow the compiler must realize there is no match for Func<T,V> and
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