public void SaveShipment(ShipmentModel model)
        {
            tShipment shipmentEntity = model.ShipmentEntity();

            dc.tShipments.InsertOnSubmit(shipmentEntity);
            dc.SubmitChanges();
        }
 partial void DeletetShipment(tShipment instance);
 partial void UpdatetShipment(tShipment instance);
 partial void InserttShipment(tShipment instance);