public function render(Varien_Object $row) { if (!in_array($row->getTypeId(), array('simple', 'virtual', 'downloadable'))) { return Mage::helper('advancedinventory')->__("-"); } $checked = $row->getStock_status() ? 'checked' : ''; $disabled = Mage::getStoreConfig("advancedinventory/setting/auto_update_stock_status") ? 'disabled' : ''; $html = "<div style='text-align:center'><input {$checked} {$disabled} name='' class='StockStatus ' type='checkbox' value = '" . (int) $row->getIsInStock() . "' /></div>"; return $html; }