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107 lines
2.3 KiB
Markdown
107 lines
2.3 KiB
Markdown
---
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order: 1
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title:
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zh-CN: 受控操作示例
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en-US: Controlled Tree
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---
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## zh-CN
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受控操作示例
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## en-US
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Controlled mode lets parent nodes reflect the status of child nodes more intelligently.
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```tsx
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import React, { useState } from 'react';
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import { Tree } from 'antd';
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const { TreeNode } = Tree;
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const treeData = [
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{
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title: '0-0',
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key: '0-0',
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children: [
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{
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title: '0-0-0',
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key: '0-0-0',
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children: [
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{ title: '0-0-0-0', key: '0-0-0-0' },
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{ title: '0-0-0-1', key: '0-0-0-1' },
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{ title: '0-0-0-2', key: '0-0-0-2' },
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],
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},
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{
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title: '0-0-1',
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key: '0-0-1',
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children: [
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{ title: '0-0-1-0', key: '0-0-1-0' },
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{ title: '0-0-1-1', key: '0-0-1-1' },
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{ title: '0-0-1-2', key: '0-0-1-2' },
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],
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},
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{
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title: '0-0-2',
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key: '0-0-2',
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},
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],
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},
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{
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title: '0-1',
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key: '0-1',
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children: [
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{ title: '0-1-0-0', key: '0-1-0-0' },
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{ title: '0-1-0-1', key: '0-1-0-1' },
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{ title: '0-1-0-2', key: '0-1-0-2' },
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],
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},
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{
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title: '0-2',
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key: '0-2',
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},
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];
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const Demo = () => {
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const [expandedKeys, setExpandedKeys] = useState<string[]>(['0-0-0', '0-0-1']);
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const [checkedKeys, setCheckedKeys] = useState<string[]>(['0-0-0']);
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const [selectedKeys, setSelectedKeys] = useState<string[]>([]);
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const [autoExpandParent, setAutoExpandParent] = useState<boolean>(true);
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const onExpand = expandedKeys => {
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console.log('onExpand', expandedKeys);
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// if not set autoExpandParent to false, if children expanded, parent can not collapse.
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// or, you can remove all expanded children keys.
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setExpandedKeys(expandedKeys);
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setAutoExpandParent(false);
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};
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const onCheck = checkedKeys => {
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console.log('onCheck', checkedKeys);
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setCheckedKeys(checkedKeys);
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};
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const onSelect = (selectedKeys, info) => {
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console.log('onSelect', info);
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setSelectedKeys(selectedKeys);
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};
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return (
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<Tree
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checkable
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onExpand={onExpand}
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expandedKeys={expandedKeys}
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autoExpandParent={autoExpandParent}
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onCheck={onCheck}
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checkedKeys={checkedKeys}
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onSelect={onSelect}
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selectedKeys={selectedKeys}
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treeData={treeData}
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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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