问题
Func is a serializable class, but yet when I try to pass it as a parameter through a service. I'm told it "isn't a known type". I've tried the solutions here to no avail.
Many thanks out there...
回答1:
There's work happening to enable it. Check out the Expression Tree Serialization project on the MSDN Code Gallery.
回答2:
No, basically. You can't pass an Expression either, since it talks to MemberInfo nodes. Your best bet is a string representation of the predicate.
来源：https://stackoverflow.com/questions/567316/can-you-pass-funct-bool-through-a-wcf-service