private void advance_button_Click(object sender, RoutedEventArgs e)
        {
            Advance_Settings page = new Advance_Settings();

            page.ShowDialog();
            if (page.want_save())
            {
                hostname = page.hostname();
                user     = page.user();
                pass     = page.password();
                setcurrent();
            }
        }
 private void advance_button_Click(object sender, RoutedEventArgs e)
 {
     Advance_Settings page = new Advance_Settings();
     page.ShowDialog();
     if (page.want_save())
     {
         hostname = page.hostname();
         user = page.user();
         pass = page.password();
         setcurrent();
     }
 }