public function ListAjaxObserver() { $searchFilter = $this->_parseFilterRequest($this->getRequest()->getQuery('filter_options', '')); if ($searchFilter && in_array('link_parent', $searchFilter)) { $this->getTreeModel()->current_id = intval($searchFilter[1]); $this->current_parent = intval($searchFilter[1]); } parent::ListAjaxObserver(); }