public function setWSearchEnabled(string $wsearch_enabled = "F") : CNabuDataObject
    {
        if ($wsearch_enabled === null) {
            throw new ENabuCoreException(
                    ENabuCoreException::ERROR_NULL_VALUE_NOT_ALLOWED_IN,
                    array("\$wsearch_enabled")
            );
        }
        $this->setValue('nb_site_wsearch_enabled', $wsearch_enabled);
        
        return $this;
    }