private void BtnSetHorizontalScrollController_Click(object sender, RoutedEventArgs e)
        {
            if (horizontalScrollController == null)
            {
                horizontalScrollController = new ScrollBarController(horizontalScrollBar, lstLog, chkLog.IsChecked.Value);
            }

            ((ScrollBarController)horizontalScrollController).IsEnabled = true;

            if (cmbIScrollControllerConsumer.SelectedIndex == 0)
            {
                if (scroller.HorizontalScrollController != horizontalScrollController)
                {
                    scroller.HorizontalScrollController = horizontalScrollController;
                    LogMessage("Scroller.HorizontalScrollController set");
                }
            }
            else if (canvasScrollControllerConsumer.HorizontalScrollController != horizontalScrollController)
            {
                canvasScrollControllerConsumer.HorizontalScrollController = horizontalScrollController;
                LogMessage("CanvasScrollControllerConsumer.HorizontalScrollController set");
            }
        }