不支持具有类型为“<var>Type Name</var>”的输入和类型为“X”的检查的“<var>X</var>”表达式。LINQ to Entities 查询只支持实体类型和复杂类型。

Message in Chinese (Simplified) (中文(简体))

Unlocalized message

The '<var>X</var>' expression with an input of type '<var>Type Name</var>' and a check of type 'X' is not supported. Only entity types and complex types are supported in LINQ to Entities queries.

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