private void detach_OrderHeaders(OrderHeader entity)
 {
     this.SendPropertyChanging();
     entity.MsMember = null;
 }
 partial void DeleteOrderHeader(OrderHeader instance);
 partial void InsertOrderHeader(OrderHeader instance);
 partial void UpdateOrderHeader(OrderHeader instance);
 private void attach_OrderHeaders(OrderHeader entity)
 {
     this.SendPropertyChanging();
     entity.MsEmployee = this;
 }