This method is called to create sub-menus.
| protected renderDropdown ( array $items, array $parentItem ) : string | ||
| $items | array | the given items. Please refer to [[Dropdown::items]] for the array structure. |
| $parentItem | array | the parent item information. Please refer to [[items]] for the structure of this array. |
| return | string | the rendering result. |
protected function renderDropdown($items, $parentItem)
{
foreach ($items as &$item) {
$this->changeItem($item);
}
return parent::renderDropdown($items, $parentItem);
}