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86 lines
2.0 KiB
Markdown
Executable File
86 lines
2.0 KiB
Markdown
Executable File
---
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order: 2
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title:
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zh-CN: 只展开当前父级菜单
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en-US: Open current submenu only
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---
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## zh-CN
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点击菜单，收起其他展开的所有菜单，保持菜单聚焦简洁。
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## en-US
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Click the menu and you will see that all the other menus gets collapsed to keep the entire menu compact.
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```tsx
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import { Menu, MenuProps } from 'antd';
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import { AppstoreOutlined, MailOutlined, SettingOutlined } from '@ant-design/icons';
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type MenuItem = Required<MenuProps>['items'][number];
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function getItem(
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label: React.ReactNode,
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key: React.Key,
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icon?: React.ReactNode,
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children?: MenuItem[],
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type?: 'group',
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): MenuItem {
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return {
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key,
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icon,
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children,
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label,
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type,
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} as MenuItem;
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}
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const items: MenuItem[] = [
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getItem('Navigation One', 'sub1', <MailOutlined />, [
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getItem('Option 1', '1'),
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getItem('Option 2', '2'),
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getItem('Option 3', '3'),
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getItem('Option 4', '4'),
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]),
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getItem('Navigation Two', 'sub2', <AppstoreOutlined />, [
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getItem('Option 5', '5'),
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getItem('Option 6', '6'),
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getItem('Submenu', 'sub3', null, [getItem('Option 7', '7'), getItem('Option 8', '8')]),
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]),
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getItem('Navigation Three', 'sub4', <SettingOutlined />, [
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getItem('Option 9', '9'),
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getItem('Option 10', '10'),
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getItem('Option 11', '11'),
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getItem('Option 12', '12'),
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]),
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];
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// submenu keys of first level
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const rootSubmenuKeys = ['sub1', 'sub2', 'sub4'];
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const Sider = () => {
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const [openKeys, setOpenKeys] = React.useState(['sub1']);
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const onOpenChange: MenuProps['onOpenChange'] = keys => {
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const latestOpenKey = keys.find(key => openKeys.indexOf(key) === -1);
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if (rootSubmenuKeys.indexOf(latestOpenKey!) === -1) {
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setOpenKeys(keys);
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} else {
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setOpenKeys(latestOpenKey ? [latestOpenKey] : []);
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}
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};
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return (
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<Menu
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mode="inline"
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openKeys={openKeys}
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onOpenChange={onOpenChange}
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style={{ width: 256 }}
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items={items}
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/>
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);
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};
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export default () => <Sider />;
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```
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