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83 lines
1.9 KiB
Markdown
83 lines
1.9 KiB
Markdown
---
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order: 5
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title:
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zh-CN: 额外节点
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en-US: Extra node
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---
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## zh-CN
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可以同时展开多个面板，这个例子默认展开了第一个。
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## en-US
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More than one panel can be expanded at a time, the first panel is initialized to be active in this case.
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```jsx
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import { Collapse, Icon, Select } from 'antd';
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const { Panel } = Collapse;
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const { Option } = Select;
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function callback(key) {
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console.log(key);
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}
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const text = `
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A dog is a type of domesticated animal.
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Known for its loyalty and faithfulness,
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it can be found as a welcome guest in many households across the world.
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`;
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const genExtra = () => (
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<Icon
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type="setting"
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onClick={event => {
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// If you don't want click extra trigger collapse, you can prevent this:
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event.stopPropagation();
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}}
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/>
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);
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class Demo extends React.Component {
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state = {
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expandIconPosition: 'left',
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};
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onPositionChange = expandIconPosition => {
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this.setState({ expandIconPosition });
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};
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render() {
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const { expandIconPosition } = this.state;
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return (
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<div>
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<Collapse
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defaultActiveKey={['1']}
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onChange={callback}
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expandIconPosition={expandIconPosition}
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>
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<Panel header="This is panel header 1" key="1" extra={genExtra()}>
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<div>{text}</div>
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</Panel>
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<Panel header="This is panel header 2" key="2" extra={genExtra()}>
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<div>{text}</div>
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</Panel>
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<Panel header="This is panel header 3" key="3" extra={genExtra()}>
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<div>{text}</div>
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</Panel>
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</Collapse>
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<br />
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<span>Expand Icon Position: </span>
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<Select value={expandIconPosition} onChange={this.onPositionChange}>
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<Option value="left">left</Option>
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<Option value="right">right</Option>
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</Select>
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</div>
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);
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}
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}
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ReactDOM.render(<Demo />, mountNode);
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```
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