Unable to update the EntitySet 'UserType' because it has a DefiningQuery and no <InsertFunction> ele
数据库没有主键
【1】添加主键
【2】在edmx中更新
Unable to update the EntitySet 'UserType' because it has a DefiningQuery and no <InsertFunction> ele
数据库没有主键
【1】添加主键
【2】在edmx中更新