private void UpdateBtn_Click(object sender, RoutedEventArgs e)
        {
            IceCream ic = (IceCream)((Button)sender).DataContext;
            String   b  = ic.Id;

            // MessageBox.Show(b, "Warning", MessageBoxButton.OK, MessageBoxImage.Exclamation);
            addIceCreamUC = new AddIceCreamUC(Shop.Id, ic);
            ((MainWindow)System.Windows.Application.Current.MainWindow).content_grid.Children.Clear();
            ((MainWindow)System.Windows.Application.Current.MainWindow).content_grid.Children.Add(addIceCreamUC);
        }
 private void addIceCreamBtn_Click(object sender, RoutedEventArgs e)
 {
     addIceCreamUC = new AddIceCreamUC(Shop.Id);
     ((MainWindow)System.Windows.Application.Current.MainWindow).content_grid.Children.Clear();
     ((MainWindow)System.Windows.Application.Current.MainWindow).content_grid.Children.Add(addIceCreamUC);
 }