/**
  * Set and apply filter values
  * 
  * @param array $data Filter values
  * @return this
  */
 protected function _setFilterValues($data)
 {
     if ($this->_blcg_holdPrepareCollection) {
         // Do not allow to set filters now, as we want to get the maximum of chances of getting items
         return $this;
     } else {
         if (!is_null($this->_blcg_gridModel)) {
             // Filter filters
             $data = $this->_blcg_gridModel->verifyGridBlockFilters($this, $data);
         }
         return parent::_setFilterValues($data);
     }
 }