//Button to Review Order
 private void Open_ReviewOrder(object sender, RoutedEventArgs e)
 {
     Switcher.Switch(Switcher.GetFinalize());
 }
 //Button to Open up Checkout
 private void Open_Checkout(object sender, RoutedEventArgs e)
 {
     Switcher.Switch(Switcher.GetCheckout());
 }
 private void Open_Menu(object sender, RoutedEventArgs e)
 {
     Switcher.Switch(Switcher.GetNewMenu());
 }
        //Button to Open up Cart
        private void Open_Cart(object sender, RoutedEventArgs e)
        {
            string changedNumber = Switcher.GetChangeTable().ChangeTableTextBox.Text;

            Switcher.Switch(Switcher.GetCart());
        }