CButtonColumn

array( 'class'=>'CButtonColumn', 'template'=>'{xxx}', 'buttons'=>array( 'xxx' => array( 'label'=>'...', // text label of the button 'url'=>'', // a PHP expression for generating the URL of the button 'imageUrl'=>Yii::app()->request->baseUrl . '/images/accept.png', 'options'=>array(''), // HTML options for the button tag 'click'=>'', // a JS function to be invoked when the button is clicked 'visible'=>'true', // a PHP expression for determining whether the button is visible ) ) ),

Ссылки

http://www.simplecoding.org/yii-frejmvork-sozdanie-knopok-s-pomoshhyu-cbuttoncolumn.html

http://wreports.blogspot.com/2011/12/yii-framework-cgridview.html

http://jedi-it.ru/post/5