/// <summary>
 /// Handles the ValueChanged event of the numeric control.
 /// </summary>
 /// <param name="sender">The source of the event.</param>
 /// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param>
 private void numeric_ValueChanged(object sender, EventArgs e)
 {
     Captions.Invalidate();
     Captions.Update();
 }