public AddedEventDispatcher(Collection <V> collection, EventQueue dispatcher, AddedEventHandler handler)
{
this.Collection = collection;
this.Handler = dispatcher != null
? delegate(Collection <V> .AddedEventArgs args) { dispatcher.Post(delegate() { handler(args); }); }
: handler;
this.Collection.Added += this.Handler;
}
public void Dispose()
{
AddedEventHandler handler = Interlocked.Exchange(ref this.Handler, null);
this.Collection.Added -= handler;
}
public IDisposable Listen(EventQueue dispatcher, AddedEventHandler handler)
{
// The AddedEventDispatcher constructor adds an event handler to the Added event.
return(new AddedEventDispatcher(this, dispatcher, handler));
}
