/// <summary>
/// YearsIntervalStringFormatProperty property changed handler.
/// </summary>
/// <param name="d">DateTimeAxisLabel that changed its YearsIntervalStringFormat.</param>
/// <param name="e">Event arguments.</param>
private static void OnYearsIntervalStringFormatPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
DateTimeAxisLabel source = (DateTimeAxisLabel)d;
source.OnYearsIntervalStringFormatPropertyChanged();
}