ant-design/components/dropdown/demo/event.md

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---
order: 4
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title:
zh-CN: 触发事件
en-US: Click event
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---
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## zh-CN
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点击菜单项后会触发事件,用户可以通过相应的菜单项 key 进行不同的操作。
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## en-US
An event will be triggered when you click menu items, in which you can make different operations according to item's key.
```tsx
import { DownOutlined } from '@ant-design/icons';
import type { MenuProps } from 'antd';
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import { Dropdown, Menu, message, Space } from 'antd';
import React from 'react';
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const onClick: MenuProps['onClick'] = ({ key }) => {
message.info(`Click on item ${key}`);
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};
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const menu = (
<Menu
onClick={onClick}
items={[
{
label: '1st menu item',
key: '1',
},
{
label: '2nd menu item',
key: '2',
},
{
label: '3rd menu item',
key: '3',
},
]}
/>
);
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const App: React.FC = () => (
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<Dropdown overlay={menu}>
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<a onClick={e => e.preventDefault()}>
<Space>
Hover me, Click menu item
<DownOutlined />
</Space>
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</a>
</Dropdown>
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);
export default App;
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```