SQL Query IN and NOT IN
Magento uses keywords in
for IN
and nin
for NOT IN
... $productIds = array(1251,1253,1256); if ($column->getFilter()->getValue()) { $this->getCollection()->addFieldToFilter('entity_id', array('in'=>$productIds)); } else { $this->getCollection()->addFieldToFilter('entity_id', array('nin'=>$productIds)); } ... |