protected override void OnNavigatedTo(NavigationEventArgs e) { base.OnNavigatedTo(e); if (NetworkHelper.CheckNetworkAvailability()) { webView.NavigationFailed += WebView_NavigationFailed; webView.NavigationCompleted += WebView_NavigationCompleted; webView.NavigationStarting += WebView_NavigationStarting; NavigateToHome(); } else { webView.Visibility = Visibility.Collapsed; commandBar.Visibility = Visibility.Collapsed; offlineIntr.Visibility = Visibility.Visible; } }