ant-design/components/tree/demo/basic-controlled.md

---
order: 1
title:
  zh-CN: 受控操作示例
  en-US: basic controlled example
---

## zh-CN

受控操作示例

## en-US

basic controlled example

````jsx
import { Tree } from 'antd';
const TreeNode = Tree.TreeNode;

const treeData = [{
  "title": "0-0",
  "key": "0-0",
  "children": [{
    "title": "0-0-0",
    "key": "0-0-0",
    "children": [
      { "title": "0-0-0-0", "key": "0-0-0-0" },
      { "title": "0-0-0-1", "key": "0-0-0-1" },
      { "title": "0-0-0-2", "key": "0-0-0-2" },
    ],
  }, {
    "title": "0-0-1",
    "key": "0-0-1",
    "children": [
      { "title": "0-0-1-0", "key": "0-0-1-0" },
      { "title": "0-0-1-1", "key": "0-0-1-1" },
      { "title": "0-0-1-2", "key": "0-0-1-2" },
    ],
  }, {
    "title": "0-0-2",
    "key": "0-0-2",
  }],
}, {
  "title": "0-1",
  "key": "0-1",
  "children": [
    { "title": "0-1-0-0", "key": "0-1-0-0" },
    { "title": "0-1-0-1", "key": "0-1-0-1" },
    { "title": "0-1-0-2", "key": "0-1-0-2" },
  ],
}, {
  "title": "0-2",
  "key": "0-2",
}];

class Demo extends React.Component {
  state = {
    expandedKeys: ['0-0-0', '0-0-1'],
    autoExpandParent: true,
    checkedKeys: ['0-0-0'],
    selectedKeys: [],
  }
  onExpand = (expandedKeys) => {
    console.log('onExpand', arguments);
    // if not set autoExpandParent to false, if children expanded, parent can not collapse.
    // or, you can remove all expanded children keys.
    this.setState({
      expandedKeys,
      autoExpandParent: false,
    });
  }
  onCheck = (checkedKeys) => {
    console.log('onCheck', checkedKeys);
    this.setState({ checkedKeys });
  }
  onSelect = (selectedKeys, info) => {
    console.log('onSelect', info);
    this.setState({ selectedKeys });
  }
  renderTreeNodes = (data) => {
    return data.map((item) => {
      if (item.children) {
        return (
          <TreeNode title={item.title} key={item.key} dataRef={item}>
            {this.renderTreeNodes(item.children)}
          </TreeNode>
        );
      }
      return <TreeNode {...item} />;
    });
  }
  render() {
    return (
      <Tree
        checkable
        onExpand={this.onExpand}
        expandedKeys={this.state.expandedKeys}
        autoExpandParent={this.state.autoExpandParent}
        onCheck={this.onCheck}
        checkedKeys={this.state.checkedKeys}
        onSelect={this.onSelect}
        selectedKeys={this.state.selectedKeys}
      >
        {this.renderTreeNodes(treeData)}
      </Tree>
    );
  }
}

ReactDOM.render(<Demo />, mountNode);
````