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103 lines
2.1 KiB
Markdown
103 lines
2.1 KiB
Markdown
---
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order: 9
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title:
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zh-CN: 新增和关闭页签
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en-US: Add & close tab
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---
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## zh-CN
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只有卡片样式的页签支持新增和关闭选项。使用 `closable={false}` 禁止关闭。
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## en-US
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Only card type Tabs support adding & closable. +Use `closable={false}` to disable close.
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```jsx
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import { Tabs } from 'antd';
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const { TabPane } = Tabs;
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const initialPanes = [
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{ title: 'Tab 1', content: 'Content of Tab 1', key: '1' },
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{ title: 'Tab 2', content: 'Content of Tab 2', key: '2' },
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{
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title: 'Tab 3',
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content: 'Content of Tab 3',
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key: '3',
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closable: false,
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},
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];
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class Demo extends React.Component {
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newTabIndex = 0;
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state = {
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activeKey: initialPanes[0].key,
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panes: initialPanes,
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};
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onChange = activeKey => {
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this.setState({ activeKey });
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};
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onEdit = (targetKey, action) => {
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this[action](targetKey);
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};
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add = () => {
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const { panes } = this.state;
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const activeKey = `newTab${this.newTabIndex++}`;
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const newPanes = [...panes];
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newPanes.push({ title: 'New Tab', content: 'Content of new Tab', key: activeKey });
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this.setState({
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panes: newPanes,
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activeKey,
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});
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};
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remove = targetKey => {
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const { panes, activeKey } = this.state;
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let newActiveKey = activeKey;
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let lastIndex;
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panes.forEach((pane, i) => {
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if (pane.key === targetKey) {
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lastIndex = i - 1;
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}
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});
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const newPanes = panes.filter(pane => pane.key !== targetKey);
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if (newPanes.length && newActiveKey === targetKey) {
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if (lastIndex >= 0) {
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newActiveKey = newPanes[lastIndex].key;
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} else {
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newActiveKey = newPanes[0].key;
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}
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}
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this.setState({
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panes: newPanes,
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activeKey: newActiveKey,
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});
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};
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render() {
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const { panes, activeKey } = this.state;
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return (
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<Tabs
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type="editable-card"
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onChange={this.onChange}
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activeKey={activeKey}
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onEdit={this.onEdit}
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>
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{panes.map(pane => (
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<TabPane tab={pane.title} key={pane.key} closable={pane.closable}>
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{pane.content}
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</TabPane>
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))}
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</Tabs>
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);
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}
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}
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export default Demo;
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```
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