Prado\Web\UI\ActiveControls\TStyleDiff::getDifference PHP Метод

    public function getDifference()
    {
        if ($this->_new === null) {
            return $this->_null;
        } else {
            $css = $this->getCssClassDiff();
            $style = $this->getStyleDiff();
            if ($css !== null || $style !== null) {
                return array('CssClass' => $css, 'Style' => $style);
            } else {
                $this->_null;
            }
        }
    }