public MainWindow() { InitializeComponent(); _spider = new Spider(); _spider.ContentsSaved += new Spider.ContentsSavedHandler(Spider_ContentsSaved); _spider.DownloadFinish += new Spider.DownloadFinishHandler(Spider_DownloadFinish); this.Closed += new EventHandler(MainWindow_Closed); this.Loaded += new RoutedEventHandler(MainWindow_Loaded); btnStop.IsEnabled = false; }