递归tree结构的数据(修改antd tree结构的数据)

 

 

这是要修改的 树结构数据

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

 

目的我们要修改每一层的 title为 ReactNode 的数据给 每一层加一个 Tag 标签；

例如：key 为  0-0-0-1 的节点

{
    title: 'leaf-2',
    key: '0-0-0-1',
    isStop: 1,
}

改造成

{
    title: （
        <Space>
            span>{item.title}</span>
            <Tag color='error'>停</Tag>
    </Space>
    ）,
    key: '0-0-0-1',
    isStop: 1,
}                

递归方法：

const recursionTreeData = (treeData) => {
    let nodeData = [];
    treeData.forEach(item => {
        if(item.children){
            item.children = recursionTreeData(item.children);
        }
        
        item.title = (
                <Space>
                    <span>{item.title}</span>
                    <Tag color={item.isStop ? 'error': 'success'}>{item.isStop ? '停': '启'}</Tag>
                </Space>
        );
        
        nodeData.push(item);
    });
    return nodeData;
};

通过 recursionTreeData 处理即可

效果图：

 

完整示例代码（react+antd）：

import React from "react";
import { Tree, Row, Col, Tag, Space } from 'antd';

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

const recursionTreeData = (treeData) => {
    let nodeData = [];
    treeData.forEach(item => {
        if(item.children){
            item.children = recursionTreeData(item.children);
        }
        
        item.title = (
                <Space>
                    <span>{item.title}</span>
                    <Tag color={item.isStop ? 'error': 'success'}>{item.isStop ? '停': '启'}</Tag>
                </Space>
        );
        
        nodeData.push(item);
    });
    return nodeData;
};


console.log('我是递归返回', recursionTreeData(treeData));





function MenuPublish(props){
    const onSelect = (selectedKeys, info) => {
        console.log('selected', selectedKeys, info);
    };
    
    const onCheck = (checkedKeys, info) => {
        console.log('onCheck', checkedKeys, info);
    };
    return (
        <div className='MenuPublish'>
            <Row>
                <Col span={4}>
                    <Tree
                        checkable
                        defaultExpandedKeys={['0-0-0', '0-0-1']}
                        defaultSelectedKeys={['0-0-0', '0-0-1']}
                        defaultCheckedKeys={['0-0-0', '0-0-1']}
                        onSelect={onSelect}
                        onCheck={onCheck}
                        treeData={treeData}
                    />
                </Col>
                <Col span={20}>
                    col-20
                </Col>
            </Row>
        </div>
    );
}

export default MenuPublish;

View Code

 

标签：递归,isStop,title,treeData,tree,item,key,antd,children
来源： https://www.cnblogs.com/taohuaya/p/13553701.html