EF 新增数据时提示it has a DefiningQuery and no <InsertFunction> element exists in the <ModificationFunctionMapping> element
Unable to update the EntitySet 'Users' because it has a DefiningQuery and no <InsertFunction> element exists in the <ModificationFunctionMapping> element to support the current operation.
检查该 Entity 对应的 表是否没有主键，设置表的主键，确保Entity的主键和表的主键一致
