Nette\Forms\Container::addCheckbox PHP Метод

    public function addCheckbox($name, $caption = NULL)
    {
        return $this[$name] = new Controls\Checkbox($caption);
    }

 public function generateForm(Items\Base $item, Nette\Forms\Container &$formContainer, $name, $parentName, $togglingObject, array $userOptions = [])
 {
     $input = $formContainer->addCheckbox($name, $name);
     $input->setOption('id', $parentName . '__' . $name);
     $input->setValue($item->getContent());
     if (!is_null($togglingObject)) {
         $togglingObject->toggle($input->getOption('id'));
     }
     $item->applyUserOptions($input, $userOptions);
 }