/// <summary>
/// Save text when moving away from textbox
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void textBoxImageText_LostFocus(object sender, RoutedEventArgs e)
{
if (slideshowImageList.SelectedItem != null)
{
int index = slideshowImageList.SelectedIndex;
selectedSlideShow.SetDescription(index, textBoxImageText.Text);
}
}