/// <summary>
/// Save duration when moving away from textbox
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void textBoxDuration_LostFocus(object sender, RoutedEventArgs e)
{
if (slideshowImageList.SelectedItem != null)
{
int index = slideshowImageList.SelectedIndex;
int duration = -1;
if (int.TryParse(textBoxDuration.Text, out duration))
{
selectedSlideShow.SetDuration(index, duration);
}
}
}