public void LoadModifyShipmentPage(ShipmentDTO client)
        {
            IWindowManager       manager = new WindowManager();
            AddShipmentViewModel modify  = new AddShipmentViewModel(client);

            manager.ShowDialog(modify, null, null);
            Reload();
        }
        public void LoadAddShipmentPage()
        {
            IWindowManager       manager = new WindowManager();
            AddShipmentViewModel add     = new AddShipmentViewModel();

            manager.ShowDialog(add, null, null);
            Reload();
        }