private void P1BtnClick_begin(object sender, RoutedEventArgs e) { if (NavigationService.CanGoForward) { NavigationService.GoForward(); } else { IntroPage_2 page2 = new IntroPage_2(); NavigationService.Navigate(page2); } }
private void P3BtnClick_back(object sender, RoutedEventArgs e) { if (NavigationService.CanGoBack) { NavigationService.GoBack(); } else { IntroPage_2 page2 = new IntroPage_2(); NavigationService.Navigate(page2); } }