Message in Chinese (Simplified) (中文(简体))
位于指定对象集合中的索引 <var>X</var> 处的对象未附加到与此 EntityCollection 的源对象相同的 ObjectContext。
Unlocalized message
The object at index <var>X</var> in the specified collection of objects is not attached to the same ObjectContext as source object of this EntityCollection.
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