yii Create Url, Links and Redirections

Create URL:

 $url = Yii::app()->createUrl('site/index');
$url = Yii::app()->createUrl('site/index', array('id'=>100));

Create absolute URL:

 Yii::app()->createAbsoluteUrl('site/index',array('id'=>100)); 

Create Link

 echo CHtml::link('text', array('site/index', 'id'=>100)); 

Redirect Browser

 $this->redirect(array('site/index','id'=>100)); 

Yii Image link with class

<?php   echo CHtml::link(CHtml::image(Yii::app()->baseUrl."/sitepicture/thumbs/".$data->screenshot,$data->name,array('class'=>'alignleft')), "$data->url", array('target'=>'_blank','class'=>'alignleft'));

 ?>

yii: drop down list filter in CGridView static value

 array(
 'name' => 'activation',
 'filter' => array(1 => 'activation', 0 => 'Inactivation'),
 ),

CButtonColumn header name

array(
 'class'=>'CButtonColumn',
        'header' => 'Action',
  ),