$numResults = count($dataProvider->getData());

    if($numResults == 0) {
      $criteria->condition = '1=0';
      return new CActiveDataProvider('Store', array('criteria'=>$criteria));
    }

    //$dataProvider->setTotalItemCount() doesn't work when $numResults is zero for some reason
    $dataProvider->setTotalItemCount(count($dataProvider->getData()));