import React, { useState } from 'react'; import { AppstoreOutlined, MailOutlined, SettingOutlined } from '@ant-design/icons'; import type { MenuProps } from 'antd'; import { Menu } from 'antd'; type MenuItem = Required['items'][number]; function getItem( label: React.ReactNode, key: React.Key, icon?: React.ReactNode, children?: MenuItem[], type?: 'group', ): MenuItem { return { key, icon, children, label, type, } as MenuItem; } const items: MenuItem[] = [ getItem('Navigation One', 'sub1', , [ getItem('Option 1', '1'), getItem('Option 2', '2'), getItem('Option 3', '3'), getItem('Option 4', '4'), ]), getItem('Navigation Two', 'sub2', , [ getItem('Option 5', '5'), getItem('Option 6', '6'), getItem('Submenu', 'sub3', null, [getItem('Option 7', '7'), getItem('Option 8', '8')]), ]), getItem('Navigation Three', 'sub4', , [ getItem('Option 9', '9'), getItem('Option 10', '10'), getItem('Option 11', '11'), getItem('Option 12', '12'), ]), ]; // submenu keys of first level const rootSubmenuKeys = ['sub1', 'sub2', 'sub4']; const App: React.FC = () => { const [openKeys, setOpenKeys] = useState(['sub1']); const onOpenChange: MenuProps['onOpenChange'] = (keys) => { const latestOpenKey = keys.find((key) => openKeys.indexOf(key) === -1); if (rootSubmenuKeys.indexOf(latestOpenKey!) === -1) { setOpenKeys(keys); } else { setOpenKeys(latestOpenKey ? [latestOpenKey] : []); } }; return ( ); }; export default App;