private void chkbox_AutomaticSaving_Click(object sender, RoutedEventArgs e)
        {
            int interval = (int)SliderAutoRefresh.Value;

            if (chkbox_AutomaticSaving.IsChecked == true)
            {
                MainWindow.SetTimer(true, interval);
            }
            else
            {
                MainWindow.SetTimer(false, 60);
            }
        }
 private void Lbl_savenowTimer_MouseUp(object sender, MouseButtonEventArgs e)
 {
     MainWindow.SetTimer(true, (int)SliderAutoRefresh.Value);
 }