/**
  * @param string $section
  * @param \APY\DataGridBundle\Grid\Grid $grid
  * @param \APY\DataGridBundle\Grid\Column\Column $param
  * @return string
  */
 public function getGridUrl($section, $grid, $param = null)
 {
     $separator = strpos($grid->getRouteUrl(), '?') ? '&' : '?';
     switch ($section) {
         case 'order':
             if ($param->isSorted()) {
                 return $grid->getRouteUrl() . $separator . $grid->getHash() . '[' . Grid::REQUEST_QUERY_ORDER . ']=' . $param->getId() . '|' . ($param->getOrder() == 'asc' ? 'desc' : 'asc');
             } else {
                 return $grid->getRouteUrl() . $separator . $grid->getHash() . '[' . Grid::REQUEST_QUERY_ORDER . ']=' . $param->getId() . '|asc';
             }
         case 'page':
             return $grid->getRouteUrl() . $separator . $grid->getHash() . '[' . Grid::REQUEST_QUERY_PAGE . ']=' . $param;
         case 'limit':
             return $grid->getRouteUrl() . $separator . $grid->getHash() . '[' . Grid::REQUEST_QUERY_LIMIT . ']=';
         case 'reset':
             return $grid->getRouteUrl() . $separator . $grid->getHash() . '[' . Grid::REQUEST_QUERY_RESET . ']=';
     }
 }