public function render(Varien_Object $row)
{
if ($row->getCustomerId()) {
return sprintf('
<a href="%s" title="%s">%s</a>', $this->getUrl('adminhtml/customer/edit/', array('_current' => true, 'id' => $row->getCustomerId())), Mage::helper('catalog')->__('View Customer Detail'), $row->getCustomerName());
} else {
return sprintf('%s', $row->getCustomerEmail());
}
}