public ShipperItemModel()
            : base()
        {
            Shipper = new ShipperViewModel();

            OnConstructor();
        }
 public ShipperItemModel(ZActivityOperations activityOperations, string controllerAction, string masterEntity = null, string masterKey = null, ShipperViewModel shipper = null)
     : this()
 {
     ActivityOperations = activityOperations;
     ControllerAction   = controllerAction;
     MasterEntity       = masterEntity;
     MasterKey          = masterKey;
     Shipper            = shipper ?? Shipper;
 }