public static void IsExpandedChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
AeroExpander expander = d as AeroExpander;
RoutedEventArgs args = new RoutedEventArgs((bool)e.NewValue ? ExpandedEvent : CollapsedEvent);
expander.RaiseEvent(args);
}
public static void PressedHeaderBackgroundPropertyChangedCallback(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
AeroExpander expander = (AeroExpander)d;
expander.HasPressedBackground = e.NewValue != null;
}