private void Button_Click(object sender, RoutedEventArgs e)
        {
            DateTime date;
            Random   r = new Random();

            switch (r.Next(5))
            {
            case 0: date = new DateTime(2013, 11, 21); break;

            case 1: date = new DateTime(2013, 11, 22); break;

            case 2: date = new DateTime(2013, 11, 23); break;

            case 3: date = new DateTime(2013, 11, 24); break;

            case 4: date = new DateTime(2013, 11, 25); break;

            case 5: date = new DateTime(2013, 11, 26); break;

            case 6: date = new DateTime(2013, 11, 27); break;

            default: date = new DateTime(2013, 11, 28); break;
            }

            ChartUtilities.UpdateCharts("g1", date);
        }
 void MainWindow_KeyDown(object sender, KeyEventArgs e)
 {
     if (cbNavigate.IsChecked == true)
     {
         if (e.Key == Key.Right)
         {
             ChartUtilities.RightKeyPressed();
         }
         if (e.Key == Key.Left)
         {
             ChartUtilities.LeftKeyPressed();
         }
     }
 }