private void detach_orders(orders entity)
 {
     this.SendPropertyChanging();
     entity.flower = null;
 }
 private void attach_orders(orders entity)
 {
     this.SendPropertyChanging();
     entity.flower = this;
 }
 partial void Updateorders(orders instance);
 partial void Deleteorders(orders instance);
 partial void Insertorders(orders instance);