I added the code to submit the yii form When we select the value from Chtml dropdownlist box. <div class="search-form" style="display:block"> <div class="wide form"> <?php $form=$this->beginWidget('CActiveForm', array( 'action'=>Yii::app()->createUrl($this->route), 'method'=>'get', )); ?> <div class="row"> <?php echo $form->labelEx($model,'type'); ?> <?php $types=array("1"=>"Type1","2"=>"Type2"); echo $form->dropDownList($model,'type',$types, array( 'onchange'=>CHtml::ajax(array( 'success'=>"$('.search-form form').submit()", )), ) ); ?> </div> </div> </div>... Read More »