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79 lines
1.2 KiB
Markdown
79 lines
1.2 KiB
Markdown
---
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order: 3
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title:
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zh-CN: 移入展开
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en-US: Hover
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---
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## zh-CN
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通过移入展开下级菜单，点击完成选择。
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## en-US
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Hover to expand sub menu, click to select option.
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```tsx
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import { Cascader } from 'antd';
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import React from 'react';
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interface Option {
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value: string;
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label: string;
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children?: Option[];
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}
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const options: Option[] = [
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{
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value: 'zhejiang',
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label: 'Zhejiang',
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children: [
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{
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value: 'hangzhou',
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label: 'Hangzhou',
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children: [
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{
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value: 'xihu',
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label: 'West Lake',
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},
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],
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},
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],
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},
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{
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value: 'jiangsu',
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label: 'Jiangsu',
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children: [
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{
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value: 'nanjing',
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label: 'Nanjing',
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children: [
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{
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value: 'zhonghuamen',
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label: 'Zhong Hua Men',
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},
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],
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},
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],
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},
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];
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const onChange = (value: string[]) => {
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console.log(value);
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};
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// Just show the latest item.
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const displayRender = (labels: string[]) => labels[labels.length - 1];
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const App: React.FC = () => (
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<Cascader
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options={options}
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expandTrigger="hover"
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displayRender={displayRender}
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onChange={onChange}
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/>
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);
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export default App;
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```
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