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# 切换
- order: 5
展示动态切换模式。
---
````jsx
import { Menu, Icon, Switch } from 'antd';
const SubMenu = Menu.SubMenu;
const MenuItemGroup = Menu.ItemGroup;
const Sider = React.createClass({
getInitialState() {
return {
mode: 'inline',
};
},
changeMode(value) {
this.setState({
mode: value ? 'vertical' : 'inline',
});
},
render() {
return (
<div>
<Switch onChange={this.changeMode} />
<br />
<br />
<Menu
style={{ width: 240 }}
defaultOpenKeys={['sub1']}
mode={this.state.mode}>
<SubMenu key="sub1" title={<span><Icon type="mail" /><span>导航一</span></span>}>
<MenuItemGroup title="分组1">
<Menu.Item key="1">选项1</Menu.Item>
<Menu.Item key="2">选项2</Menu.Item>
</MenuItemGroup>
<MenuItemGroup title="分组2">
<Menu.Item key="3">选项3</Menu.Item>
<Menu.Item key="4">选项4</Menu.Item>
</MenuItemGroup>
</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>
</div>
);
}
});
ReactDOM.render(<Sider />, mountNode);
````