public function preProcess(
      PageLayoutView &$parentObject,
      &$drawItem,
      &$headerContent,
      &$itemContent,
      array &$row
   )
   {
      if ($row['CType'] === 'slider') {
        $headerContent = '<strong>' . $parentObject->CType_labels[$row['CType']] . '</strong><br/>';
        $itemContent .= '<p class="title">Images:</p>';
        $itemContent .= $parentObject->linkEditContent($parentObject->getThumbCodeUnlinked($row, 'tt_content', 'slider') . '<br />');

         $drawItem = false;
      }
   }