Prado\Web\UI\TPage::getPostBackEventTarget PHP Метод

    public function getPostBackEventTarget()
    {
        if ($this->_postBackEventTarget === null && $this->_postData !== null) {
            $eventTarget = $this->_postData->itemAt(self::FIELD_POSTBACK_TARGET);
            if (!empty($eventTarget)) {
                $this->_postBackEventTarget = $this->findControl($eventTarget);
            }
        }
        return $this->_postBackEventTarget;
    }