private void detach_PblshCpns(PblshCpn entity)
 {
     this.SendPropertyChanging("PblshCpns");
     entity.Coupon = null;
 }
 partial void UpdatePblshCpn(PblshCpn instance);
 partial void DeletePblshCpn(PblshCpn instance);
 partial void InsertPblshCpn(PblshCpn instance);