Dependent Multidropdown

I want to make two drop down

  1. Select Group

  2. Select Members (multi Drop Down)

When user select the first drop down (Group), i want to populate the Members Multidropdowen with the members of selected Group dynamically.

Select Members is a multidropdown and User can select more then One members.

I am able to accomplish dependent drop-down, or an independent Multidropdown, but i am not able to integrate these two.

I have tried the extensions and etc

Kinldy help me out

i think that you can use dependent dropdown and use multiple=multiple attribute in members drop downlist

Took me a while to figure out how to update dependent multiselect. I am using

For parent dropDownBox do as u would regulatory for dynamic dropDownBox. For the multiselect allow ajaxRefresh. Here is how my code looks:

First dropDownBox:

$project_all = new Project();

        echo $form->dropDownList($project_all, 'id', CHtml::listData(

                        Project::model()->findAll(), 'id', 'project_name'), array('prompt' => 'Выберите    проект',

            'ajax' => array(

                'type' => 'POST',

                'url' => CController::createUrl('sites/displayProjectSitesDemandCar'),

                 'update' => '#Waybill_site_id',

              //   'success'=>'function(data) {}'



$this->widget(‘ext.EchMultiselect.EchMultiselect’, array(

        'model' => $model,

        'dropDownAttribute' => 'site_id',

        'data' => array(),

        'dropDownHtmlOptions' => array(

            'style' => 'width:378px;',


        'options' => array(

            'header'=> true,

            'noneSelectedText'=>'Выберите сайт',

            'uncheckAllText'=>'Очистить все',

            'selectedText'=> '# выбрано',


            [b]'ajaxRefresh'=&gt;true,[/b] //this will update multiselect dynamically  <img src='' class='bbc_emoticon' alt=':D' /> 



Can you post your function: ‘url’ => CController::createUrl(‘sites/displayProjectSitesDemandCar’),???