public override void Refresh(IList <IRefreshable> alreadyRefreshed)
 {
     base.Refresh(alreadyRefreshed);
     refreshHelper.Refresh(alreadyRefreshed);
 }
 public void Refresh(IList <IRefreshable> alreadyRefreshed)
 {
     refreshHelper.Refresh(alreadyRefreshed);
 }