public function saveGridFilters()
    {
        $this->defineModelShortClassName();

        if (!isset(Yii::$app->session[$this->sessionVarName])) {
            Yii::$app->session[$this->sessionVarName] = $this->owner->attributes;
        }

        $params = Yii::$app->request->queryParams;
        if (isset($params[$this->modelShortClassName])) {
            # Check if the filter values changed
            $this->filtersChanged = serialize(Yii::$app->session[$this->sessionVarName]) !== serialize($params[$this->modelShortClassName]) ? true : false;
            Yii::$app->session[$this->sessionVarName] = $params[$this->modelShortClassName];
        }
    }