calling to a different action in yii form

<?php $form=$this->beginWidget('CActiveForm', array(
'id'=>'rep-data-models-form',
'action' => Yii::app()->createUrl('reports/repColumns/create'),
'enableAjaxValidation'=>true,
'htmlOptions' => array(
                'enctype' => 'multipart/form-data',
            ),
));

?>