private void SetUICulture(string cultureString)
 {
     if (_loaded)
     {
         var cultureInfo = new CultureInfo(cultureString);
         Thread.CurrentThread.CurrentCulture   = cultureInfo;
         Thread.CurrentThread.CurrentUICulture = cultureInfo;
         _stringProvider.NotifyCultureChanged();
         IsolatedStorageHelper.SaveCultureSetting(cultureString);
     }
 }