sample

array(
    'class'=>'CButtonColumn',
    'header'=>'Action',
    'template'=>'{addasset}{edit}{hapus}',
    'htmlOptions'=>array('style'=>'width: 170px'),
    'buttons'=>array
    (
        'addasset' => array
        (
            'label'=>'Add Asset',
            'url'=>'Yii::app()->createUrl("po/addasset", array("id"=>$data->id))',
            'options'=>array(
                'class'=>'btn btn-success',
            ),
        ),
        'edit' => array
        (
            'label'=>'Edit',
            'url'=>'Yii::app()->createUrl("po/update", array("id"=>$data->id))',
            'options'=>array(
                'class'=>'btn btn-warning',
            ),
        ),
        'hapus' => array
        (
            'label'=>'Delete',
            'url'=>'Yii::app()->createUrl("po/delete", array("id"=>$data->id))',
            'options' => 'ajax' => array(
                'type' => 'get',
                'url'=>'js:$(this).attr("href")',
                'success' => 'js:function(data) {
                    $.fn.yiiGridView.update("my-grid");
                    $("myId").hide();
                }'
            ),
        ),
    ),
),