private void HandleCurrentIndexChanged(object sender, CurrentIndexChangedEventArgs e)
{
if (e.PreviousIndex.HasValue)
{
DrawMenuItem(e.PreviousIndex.Value);
}
if (e.CurrentIndex.HasValue)
{
DrawMenuItem(e.CurrentIndex.Value);
}
}
/// <summary>
/// Raises the <see cref="CurrentIndexChanged"/> event.
/// </summary>
protected virtual void OnCurrentIndexChanged(CurrentIndexChangedEventArgs e)
{
CurrentIndexChanged?.Invoke(this, e);
}