BeFriend.Views.CallandSmsSettings.UIElement_OnTapped C# (CSharp) Метод

        private void UIElement_OnTapped(object sender, TappedRoutedEventArgs e)
        {
            var frame = Window.Current.Content as Frame;
            frame?.BackStack.Add(new PageStackEntry(typeof(CallandSmsSettings),null,null));
            frame?.Navigate(typeof (TwitterAuthenticator));
        }