Prado\Web\UI\WebControls\TBaseValidator::renderContents PHP Method

    public function renderContents($writer)
    {
        if (($text = $this->getText()) !== '') {
            $writer->write($text);
        } else {
            if (($text = $this->getErrorMessage()) !== '') {
                $writer->write($text);
            } else {
                parent::renderContents($writer);
            }
        }
    }