Prado\Web\UI\WebControls\TDatePicker::renderImageButtonDatePicker PHP Метод

    protected function renderImageButtonDatePicker($writer)
    {
        $url = $this->getButtonImageUrl();
        $url = empty($url) ? $this->getAssetUrl('calendar.png') : $url;
        $writer->addAttribute('id', $this->getDatePickerButtonID());
        $writer->addAttribute('src', $url);
        $writer->addAttribute('alt', ' ');
        $writer->addAttribute('class', $this->getCssClass() . ' TDatePickerImageButton');
        if (!$this->getEnabled(true)) {
            $writer->addAttribute('disabled', 'disabled');
        }
        $writer->addAttribute('type', 'image');
        $writer->addAttribute('onclick', 'return false;');
        $writer->renderBeginTag('input');
        $writer->renderEndTag();
    }