route === null && \Yii::$app->controller !== null) { $this->route = \Yii::$app->controller->getRoute(); } if ($this->params === null) { $this->params = \Yii::$app->request->getQueryParams(); } if ($this->dropDownCaret === null) { $this->dropDownCaret = ''; } Html::addCssClass($this->options, []); } }