public void RefreshView()
        {
            Menu.Clear();
            Clients.Clear();
            ActiveOrders.Clear();
            CompletedOrders.Clear();
            ActiveDelivery.Clear();
            CompletedDeliveries.Clear();
            foreach (DishDTG dish in restaurantManager.GetMenu())
            {
                Menu.Add(new DishModel(dish));
            }

            foreach (ClientDTG client in restaurantManager.GetAllClients())
            {
                Clients.Add(new ClientModel(client));
            }
            foreach (OrderDTG order in restaurantManager.GetActiveOrders())
            {
                ActiveOrders.Add(new OrderModel(order));
            }
            foreach (OrderDTG order in restaurantManager.GetCompletedOrders())
            {
                CompletedOrders.Add(new OrderModel(order));
            }
            foreach (OrderDTG order in restaurantManager.GetActiveDeliveries())
            {
                ActiveDelivery.Add(new OrderModel(order));
            }
            foreach (OrderDTG order in restaurantManager.GetCompletedDeliveries())
            {
                CompletedDeliveries.Add(new OrderModel(order));
            }
        }
        public void RefreshView()
        {
            Menu.Clear();
            Clients.Clear();
            ActiveOrders.Clear();
            CompletedOrders.Clear();
            ActiveDelivery.Clear();
            CompletedDeliveries.Clear();
            foreach (Dish dish in restaurantManager.GetMenu())
            {
                Menu.Add(dish);
            }

            foreach (Client client in restaurantManager.GetAllClients())
            {
                Clients.Add(client);
            }
            foreach (Order order in restaurantManager.GetActiveOrders())
            {
                ActiveOrders.Add(order);
            }
            foreach (Order order in restaurantManager.GetCompletedOrders())
            {
                CompletedOrders.Add(order);
            }
            foreach (Order order in restaurantManager.GetActiveDeliveries())
            {
                ActiveDelivery.Add(order);
            }
            foreach (Order order in restaurantManager.GetCompletedDeliveries())
            {
                CompletedDeliveries.Add(order);
            }
        }