KbtterWPF.MainWindow.EventAction C# (CSharp) Method

        void EventAction(TwitterUserStreamEvent p)
        {
            Console.WriteLine(p.ToString());
            switch (p.Event)
            {
                case "favorite":
                    var fs = p.TargetObject as TwitterStatus;
                    if (p.Source == CurrentUser) break;
                    if (p.Target != CurrentUser) break;
                    MainMention.Dispatcher.BeginInvoke(new Action(() =>
                    {
                        MainMention.Items.Insert(0, CreateFavoritePanel(fs, p.Source));
                    }));
                    NotifyFavorited(p);
                    foreach (var pl in FavoritePlugins) pl.OnFavorite(Service, p.Source, fs);
                    break;
                case "unfavorite":
                    var fs2 = p.TargetObject as TwitterStatus;
                    if (p.Source == CurrentUser) break;
                    if (p.Target != CurrentUser) break;
                    MainMention.Dispatcher.BeginInvoke(new Action(() =>
                    {
                        MainMention.Items.Insert(0, CreateUnfavoritePanel(fs2, p.Source));
                    }));
                    NotifyUnfavorited(p);
                    foreach (var pl in UnfavoritePlugins) pl.OnUnfavorite(Service, p.Source, fs2);
                    break;
                case "user_update":
                    Console.WriteLine("やったぜ。");
                    break;
                default:
                    Console.WriteLine(p.RawSource.ToString());
                    break;
            }
            if (MainMention.Items.Count > MentionMax)
            {
                MainMention.Dispatcher.BeginInvoke(new Action(() =>
                {
                    MainMention.Items.RemoveAt(MentionMax);
                }));
            }
        }