MainController

$criteria=new CDbCriteria();
$criteria->order = 'id ASC';

$count=MerchantBatchCode::model()->count($criteria);
$pages=new CPagination($count);
$pages->pageSize=50;
$pages->applyLimit($criteria);

$model= MerchantBatchCode::model()->findAll($criteria);

$this->render('voucher',array(
     'allData'=>$model,
     'pages' => $pages,
     'total'=>$count
));