CButtonColumn设置CGridView的操作按钮
'buttonID' => array( 'label'=>'...', //Text label of the button. 'url'=>'...', //A PHP expression for generating the URL of the button. 'imageUrl'=>'...', //Image URL of the button. 'options'=>array(), //HTML options for the button tag. 'click'=>'...', //A JS function to be invoked when the button is clicked. 'visible'=>'...', //A PHP expression for determining whether the button is visible.)?
更详细可看下面URL：
http://www.yiiframework.com/wiki/106/using-cbuttoncolumn-to-customize-buttons-in-cgridview
