ant-design/components/menu/demo/sider-current.md

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---
order: 2
title: 只展开当前父级菜单
---
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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。
````jsx
import { Menu, Icon } from 'antd';
const SubMenu = Menu.SubMenu;
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const Sider = React.createClass({
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getInitialState() {
return {
current: '1',
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openKeys: [],
};
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},
handleClick(e) {
console.log('click ', e);
this.setState({
current: e.key,
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openKeys: e.keyPath.slice(1),
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});
},
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onToggle(info) {
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this.setState({
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openKeys: info.open ? info.keyPath : info.keyPath.slice(1),
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});
},
render() {
return (
<Menu onClick={this.handleClick}
style={{ width: 240 }}
openKeys={this.state.openKeys}
onOpen={this.onToggle}
onClose={this.onToggle}
selectedKeys={[this.state.current]}
mode="inline"
>
<SubMenu key="sub1" title={<span><Icon type="mail" /><span>导航一</span></span>}>
<Menu.Item key="1">选项1</Menu.Item>
<Menu.Item key="2">选项2</Menu.Item>
<Menu.Item key="3">选项3</Menu.Item>
<Menu.Item key="4">选项4</Menu.Item>
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</SubMenu>
<SubMenu key="sub2" title={<span><Icon type="appstore" /><span>导航二</span></span>}>
<Menu.Item key="5">选项5</Menu.Item>
<Menu.Item key="6">选项6</Menu.Item>
<SubMenu key="sub3" title="三级导航">
<Menu.Item key="7">选项7</Menu.Item>
<Menu.Item key="8">选项8</Menu.Item>
</SubMenu>
</SubMenu>
<SubMenu key="sub4" title={<span><Icon type="setting" /><span>导航三</span></span>}>
<Menu.Item key="9">选项9</Menu.Item>
<Menu.Item key="10">选项10</Menu.Item>
<Menu.Item key="11">选项11</Menu.Item>
<Menu.Item key="12">选项12</Menu.Item>
</SubMenu>
</Menu>
);
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},
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});
ReactDOM.render(<Sider />, mountNode);
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````