Dropdownlist Add Count

Yii 1.1 General Discussion
1

Hi

how can i add a count of the distinct values in a dropDownList.

ex:




 echo $form->labelEx($model, 'pessoas');

           echo $form->dropDownList($model, 'pessoas', CHtml::listData(Casa::model()->findAll(), 'pessoas',array('pessoas','2' ), array(

                    'prompt' => 'Todas',

                    'ajax' => array(

                        'type' => 'POST',

                        'url' => CController::createUrl('casa/dynamicTipo'),

                        'update' => '#Casa_tipo', //selector to update

                        )));