public MainWindow() { InitializeComponent(); feedViewModel = new FeedViewModel(); WebBrowserHelper.SuppressCookiePersistence(); DataContext = feedViewModel; ResultTextBlock.DataContext = this; feedViewModel.GetFeedAsync(); FeedStyle = WebBrowserHelper.LoadStyle(FeedStylePath); BrowserStyle = WebBrowserHelper.LoadStyle(BrowserStylePath); FeedCombobox.ItemsSource = feedViewModel.FeedUrls; Application.Current.MainWindow.Closed += new EventHandler(MainWindow_Closed); }