YII CGridView with custom action button

<?php 
$this->widget('zii.widgets.grid.CGridView', array(
    'dataProvider'=>$model->search(),
    'filter'=>$model,
    "itemsCssClass" => "table_design_1",
    "htmlOptions" => array(
        "class" => "div_contact_admin_grid_view"
    ),
    "ajaxUpdate" => false,
    'columns'=>array(
        array(
            'name'=>'family_name', 
            'header'=>'First name',
            'type' => 'raw',
            'value' => 'CHtml::link($data->family_name,$data->id)'
        ),
        array(
            'name'=>'given_name', 
            'header'=>'Last name',
            'type' => 'raw',
            'value' => 'CHtml::link($data->given_name,$data->id)'
        ),
        array(
            'class'=>'CButtonColumn',
            'template'=>'{delete_contact}{view}{update}',
            'buttons'=>array (
                'delete_contact' => array (
                    'label'=>'Delete this contact',
                    'imageUrl'=>Yii::app()->request->baseUrl.'/images/delete.png',
                    'url'=>'Yii::app()->createUrl("contact/delete", array("id"=>$data->id))',
                    'visible' => '1',
                    "options" => array(
                        "class" => "delete_contact"
                    )
                )
            ),
            'viewButtonUrl'=>'Yii::app()->request->getBaseUrl(true)."/contact/view/".$data["id"]',
            'updateButtonUrl'=>'Yii::app()->request->getBaseUrl(true)."/contact/update/".$data["id"]',
            "htmlOptions" => array(
                'style'=>'width: 60px;',
                'class' => 'action_class'
            )
        )
    )
)); ?>

yii bootstrap install and buttons types

http://www.cniska.net/yii-bootstrap/index.html
https://docs.google.com/file/d/0B5nZNPW48dpFaU9MY0kzSVFXVUk/edit?usp=sharing
http://twitter.github.io/bootstrap/getting-started.html
http://stackoverflow.com/questions/15365639/yii-framework-with-twitter-bootstrap-not-loading

Setup

Download the latest release from Yii extensions by following the link below:
Download Yii-Bootstrap
Unzip the extension under protected/extensions/bootstrap and modify your application configuration accordingly:
If you wish to use the provided Bootstrap theme copy the theme directory to your themes directory.

// Define a path alias for the Bootstrap extension as it's used internally.
// In this example we assume that you unzipped the extension under protected/extensions. 

// Add the following line to /protected/config/main.php 

Yii::setPathOfAlias('bootstrap', dirname(__FILE__).'/../extensions/bootstrap');
 
return array(
    'theme'=>'bootstrap', // requires you to copy the theme under your themes directory
    'modules'=>array(
        'gii'=>array(
            'generatorPaths'=>array(
                'bootstrap.gii',
            ),
        ),
    ),
    'components'=>array(
        'bootstrap'=>array(
            'class'=>'bootstrap.components.Bootstrap',
        ),
    ),
);

You're done! Now you can start using Bootstrap in your application. For examples on how to use the widgets please visit the docs.