weakeventsource

weakeventsource weakeventsource Code snippet for an automatically implemented a WeakEventSource implementation. Beat Kiener Expansion

eventname The name of the event w My eventargs Type of EventArgs EventArgs source Type of the event source object eventhandler Event handler delegate EventHandler


        
    {
        protected override WeakEventListenerBase CreateWeakEventListener($source$ eventObject)
        {
            var weakListener = new WeakEventListener<$eventname$WeakEventSource, $source$, $eventargs$>(this, eventObject);
            weakListener.OnDetachAction = (listener, source) =>
            {
                source.$eventname$ -= listener.OnEvent;
            };
            weakListener.OnEventAction = (instance, source, e) =>
            {
                // fire event
                if (instance.$eventname$ != null)
                    instance.$eventname$(source, e);
            };
            eventObject.$eventname$ += weakListener.OnEvent;

            return weakListener;
        }

        public event $eventhandler$ $eventname$;

    }
        ]]>