ant-design/components/cascader/demo/custom-dropdown.md
章鱼 7fd093bd0a
docs: feat components TS demo (#34742)
* docs: add general components TS demo

* docs: add layout components TS demo

* docs: add navigation components TS demo

* docs: add data entry components TS demo

* chore(deps): add types for qs

* docs: add data display TS demo

* docs: add feedback components TS demo

* docs: add other components TS demo

* chore(deps): add types

* docs: unified demo code style

* docs: fix lint error

* docs: add demo TS type

* docs: fix demo TS type

* test: update snapshot

* docs: fix TS demo

* feat: update Rate character type

* docs: fix lint error

* feat: update Rate character type

* feat: update Rate character type
2022-05-19 09:46:26 +08:00

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Markdown

---
order: 12
title:
zh-CN: 扩展菜单
en-US: Custom dropdown
---
## zh-CN
使用 `dropdownRender` 对下拉菜单进行自由扩展。
## en-US
Customize the dropdown menu via `dropdownRender`.
```tsx
import React from 'react';
import { Cascader, Divider } from 'antd';
interface Option {
value: string;
label: string;
children?: Option[];
}
const options: Option[] = [
{
value: 'zhejiang',
label: 'Zhejiang',
children: [
{
value: 'hangzhou',
label: 'Hangzhou',
children: [
{
value: 'xihu',
label: 'West Lake',
},
],
},
],
},
{
value: 'jiangsu',
label: 'Jiangsu',
children: [
{
value: 'nanjing',
label: 'Nanjing',
children: [
{
value: 'zhonghuamen',
label: 'Zhong Hua Men',
},
],
},
],
},
];
const dropdownRender = (menus: React.ReactNode) => (
<div>
{menus}
<Divider style={{ margin: 0 }} />
<div style={{ padding: 8 }}>The footer is not very short.</div>
</div>
);
const App: React.FC = () => (
<Cascader options={options} dropdownRender={dropdownRender} placeholder="Please select" />
);
export default App;
```