private void Button_Click_1(object sender, RoutedEventArgs e)
        {
            IsolatedStorageSettings settings = IsolatedStorageSettings.ApplicationSettings;

            if (!settings.Contains("userInput2"))
            {
                settings.Add("userInput2", textBox2.Text);
            }
            else
            {
                settings["userInput2"] = textBox2.Text;
            }

            settings.Save();
            this.NavigationService.Navigate(new Uri("/SecondPage.xaml?userInput=" + textBox.Text, UriKind.Relative));
        }