tree-transfer.md

order	title
6	zh-CN en-US 树穿梭框 Tree Transfer

zh-CN

使用 Tree 组件作为自定义渲染列表。

en-US

Customize render list with Tree component.

import { Transfer, Tree } from 'antd';

const { TreeNode } = Tree;

// Customize Table Transfer
const isChecked = (selectedKeys, eventKey) => {
  return selectedKeys.indexOf(eventKey) !== -1;
};

const generateTree = (treeNodes = [], checkedKeys = []) => {
  return treeNodes.map(({ children, ...props }) => (
    <TreeNode {...props} disabled={checkedKeys.includes(props.key)}>
      {generateTree(children, checkedKeys)}
    </TreeNode>
  ));
};

const TreeTransfer = ({ dataSource, targetKeys, ...restProps }) => {
  const transferDataSource = [];
  function flatten(list = []) {
    list.forEach(item => {
      transferDataSource.push(item);
      flatten(item.children);
    });
  }
  flatten(dataSource);

  return (
    <Transfer
      {...restProps}
      targetKeys={targetKeys}
      dataSource={transferDataSource}
      className="tree-transfer"
      render={item => item.title}
      showSelectAll={false}
    >
      {({ direction, onItemSelect, selectedKeys }) => {
        if (direction === 'left') {
          const checkedKeys = [...selectedKeys, ...targetKeys];
          return (
            <Tree
              blockNode
              checkable
              checkStrictly
              defaultExpandAll
              checkedKeys={checkedKeys}
              onCheck={(
                _,
                {
                  node: {
                    props: { eventKey },
                  },
                },
              ) => {
                onItemSelect(eventKey, !isChecked(checkedKeys, eventKey));
              }}
              onSelect={(
                _,
                {
                  node: {
                    props: { eventKey },
                  },
                },
              ) => {
                onItemSelect(eventKey, !isChecked(checkedKeys, eventKey));
              }}
            >
              {generateTree(dataSource, targetKeys)}
            </Tree>
          );
        }
      }}
    </Transfer>
  );
};

const treeData = [
  { key: '0-0', title: '0-0' },
  {
    key: '0-1',
    title: '0-1',
    children: [{ key: '0-1-0', title: '0-1-0' }, { key: '0-1-1', title: '0-1-1' }],
  },
  { key: '0-2', title: '0-3' },
];

class App extends React.Component {
  state = {
    targetKeys: [],
  };

  onChange = targetKeys => {
    console.log('Target Keys:', targetKeys);
    this.setState({ targetKeys });
  };

  render() {
    const { targetKeys } = this.state;
    return (
      <div>
        <TreeTransfer dataSource={treeData} targetKeys={targetKeys} onChange={this.onChange} />
      </div>
    );
  }
}

ReactDOM.render(<App />, mountNode);

<style> .tree-transfer .ant-transfer-list:first-child { width: 50%; flex: none; } </style>