how i emanate routed eventuality silverlight 2?

anyone know emanate routed eventuality silverlight 2? wpf, formula below. however, theres eventmanager silverlight.

    open stationary readonly routedevent showvideoevent =
        eventmanager.registerroutedevent("showvideo", routingstrategy.bubble, typeof(routedeventhandler), typeof(navbar));

    open eventuality routedeventhandler showvideo
    {
        supplement { addhandler(showvideoevent, value); }
        mislay { removehandler(showvideoevent, value); }
    }