protected function _checkNoSelected(array $options, array $selected, $isMultiply = false)
    {
        if ($isMultiply === 'multiple') {
            return array($options, $selected);
        }

        $_selected = array_pop($selected);

        if (!Arr::key($_selected, $options) && !empty($selected)) {
            $options = array_merge(array($_selected => $this->_translate('--No selected--')), $options);
        }

        return array($options, array($_selected));
    }