[Transaction(ReadOnly=false)]
        public void DeleteReceiverWithReference(Guid receiverId)
        {
            IQuery q = Session.GetNamedQuery("GetShipmentReceiversByReceiver");
            q.SetGuid("value", receiverId);
            IList<ShipmentReceiver> myShipmentReceivers = q.List<ShipmentReceiver>();
            foreach (ShipmentReceiver mySReceiver in myShipmentReceivers)
            {
                mySReceiver.Receiver = null;
                mySReceiver.UsedAddress = null;
                mySReceiver.TaxNumber = "12345";
               
                Session.Update(mySReceiver);
            }
            bool t = Session.IsDirty();         
        }