WynApse

this program sucks it dosent work

i'm trying to build a dynamic menu with cool menu class, but nothing seems to be working if you plan to get your menu items from a web service or handler. i've written following code

void Page_Loaded(object sender, RoutedEventArgs e)
{
CoolMenuXmlReader reader = new CoolMenuXmlReader();
reader.MenuReceived += new MenuItemReceived(reader_MenuReceived);
WebClient client = new WebClient();
client.OpenReadCompleted += new OpenReadCompletedEventHandler(client_OpenReadCompleted);
client.OpenReadAsync(new Uri("http://localhost:51815/CoolMenuContainerWeb/XMenuReader.ashx?oprtype=ReadXml"));
//reader.GetMenuItems();
//System.Threading.Thread.Sleep(new TimeSpan(0, 0, 60));
Color[] colors = { Colors.Red, Colors.Green, Colors.Blue, Colors.Purple };
int i = 0;
if (res != null)
{
foreach (string text in res)
{
Rectangle r = new Rectangle();
r.Height = 30;
r.Width = 30;
r.Fill = new SolidColorBrush(colors[i % colors.Length]);
CoolMenuItem cmi = new CoolMenuItem();
cmi.Content = r;
cmi.Text = text;
mnuMain.Items.Add(cmi);
}
}
}

NOW WHEN I RECEIVE MENU IN THE ASYNC WAY I TRY TO UPDATE THE MENU ITEMS

protected void reader_MenuReceived(object sender, MenuItemEventArgs e)
{
res = e.Result.Split(new Char[]{','});
Color[] colors = { Colors.Red, Colors.Green, Colors.Blue, Colors.Purple };
int i = 0;
App.Current.RootVisual.Dispatcher.BeginInvoke(delegate()
{
foreach (string text in res)
{
Rectangle r = new Rectangle();
r.Height = 30;
r.Width = 30;
r.Fill = new SolidColorBrush(colors[i % colors.Length]);
CoolMenuItem cmi = new CoolMenuItem();
cmi.Content = r;
cmi.Text = text;
mnuMain.Items.Add(cmi);
}
}
);
BUT THIS DOESN'T WORK AT ALL. ANY HELP WOULD BE A GREAT ONE.