Message in Chinese (Simplified) (中文(简体))
设计器必须创建类型“<var>Type Name</var>”的实例,但该类型已声明为抽象,因此设计器无法创建该类型的实例。
Unlocalized message
The designer must create an instance of type '<var>Type Name</var>' but it cannot because the type is declared as abstract.
Search by Google