Grido\Components\Container::hasColumns PHP Method

    public function hasColumns($useCache = TRUE)
    {
        $hasColumns = $this->hasColumns;
        if ($hasColumns === NULL || $useCache === FALSE) {
            $container = $this->getComponent(Column::ID, FALSE);
            $hasColumns = $container && count($container->getComponents()) > 0;
            $this->hasColumns = $useCache ? $hasColumns : NULL;
        }
        return $hasColumns;
    }