/**
* Check whether should render empty cell
*
* @param Varien_Object $item
* @param Mage_Adminhtml_Block_Widget_Grid_Column $column
* @return boolean
*/
public function shouldRenderEmptyCell($item, $column)
{
return $item->getIsEmpty() && in_array($column['index'], $this->_groupedColumn);
}
/**
* Check whether should render cell
*
* @param Varien_Object $item
* @param Mage_Backend_Block_Widget_Grid_Column $column
* @return boolean
*/
public function shouldRenderCell($item, $column)
{
if ($this->isColumnGrouped($column) && $item->getIsEmpty()) {
return true;
}
if (!$item->getIsEmpty()) {
return true;
}
return false;
}