'GET', 'action' => [ 'price/index' ],]); echo Html::dropDownList( 'service_id',$service_id, $services, [ 'prompt' => \Yii::t('core', '- All -'), 'id' => 'service_id' ] ); echo Html::submitButton('Select'); ActiveForm::end(); Select2::register($this); $js = <<registerJs($js, View::POS_READY);