Hi guys,
Beep on Error :htmlspecialchars() expects parameter 1 to be string, object given
<?=Html::activeDropDownList($model, "trade", $Item['trade'], ['empty'=>'城市',
'ajax'=>[
'type'=>'GET',
'url'=> Yii::$app->urlManager->createUrl('area/getArea'),
'update'=>'#AdminShop_areaid',
'data'=>array('mid'=>"js:this.value",'typeid'=>1),
]])?>
How can I solve?