Backend\Core\Engine\DataGrid::setMassAction PHP Method

    public function setMassAction(\SpoonFormDropdown $actionDropDown)
    {
        // build HTML
        $HTML = '<label for="' . $actionDropDown->getAttribute('id') . '">' . \SpoonFilter::ucfirst(BackendLanguage::lbl('WithSelected')) . '</label>' . $actionDropDown->parse() . '<button type="button" class="btn btn-default jsMassActionSubmit">' . '   <span>' . \SpoonFilter::ucfirst(BackendLanguage::lbl('Execute')) . '</span>' . '</button>';
        // assign parsed html
        $this->tpl->assign('massAction', $HTML);
    }