echo CHtml::dropDownList('country_id','', array(1=>'USA',2=>'France',3=>'Japan'),
array( 'ajax' =>
array( 'type'=>'POST', //request type'url'=>CController::createUrl('currentController/dynamiccities'), //url to call.
//Style: CController::createUrl('currentController/methodToCall')
'update'=>'#city_id', //selector to update
//'data'=>'js:javascript statement'
//leave out the data key to pass all form values through )));
//empty since it will be filled by the other dropdown
echo CHtml::dropDownList('city_id','', array());
控制器:
public function actionDynamiccities() {
$data=Location::model()->findAll('parent_id=:parent_id',
(':parent_id'=>(int) $_POST['country_id'])); array
$data=CHtml::listData($data,'id','name');
foreach ($data as $value=>$name) {
CHtml::tag('option', array('value'=>$value),CHtml::encode($name),true); echo
}
}
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