How To Create Tree/Hierarchical list structure Using Ant Design UI In ReactJS

Introduction

An enterprise class UI design language and React UI library with high-quality React components, one of the best React UI libraries for enterprises.

The tree is a hierarchical list structure component.

Almost anything can be represented in a tree structure. Examples include directories, organization hierarchies, biological classifications, countries, etc. The Tree component is a way of representing the hierarchical relationship between these things. You can also expand, collapse, and select a treeNode within a Tree.

Preconditions

• Javascript
• Basic knowledge of React JS
• Node.js
• V.S. Code,Visual Studio
• typescript

We cover the below things in this article: 

• Create React application
• Installation of Ant Design UI
• How to create a tree of Ant Design UI in React js.

Here we will follow the steps for creating a tree with nodes.

Step 1. Run the below command to create a React.js project.

npx create-react-app my-app --template typescript

Step 2. Run the below command to install Ant Design UI.

npm i @ant-design/icons
npm i antd

Create the files according to the below image

Step 3. Add the below code in the App.tsx

import React from 'react';
import logo from './logo.svg';
import './App.css';
import { Tree } from 'antd';
import type { DataNode, TreeProps } from 'antd/es/tree';


const treeData: DataNode[] = [
  {
    title: 'parent 1',
    key: '0-0',
    children: [
      {
        title: 'parent 1-0',
        key: '0-0-0',
        disabled: true,
        children: [
          {
            title: 'leaf',
            key: '0-0-0-0',
            disableCheckbox: true,
          },
          {
            title: 'leaf',
            key: '0-0-0-1',
          },
        ],
      },
      {
        title: 'parent 1-1',
        key: '0-0-1',
        children: [{ title: <span style={{ color: '#1677ff' }}>sss</span>, key: '0-0-1-0' }],
      },
    ],
  },
];

function App() {

  const onSelect: TreeProps['onSelect'] = (selectedKeys, info) => {
    console.log('selected', selectedKeys, info);
  };

  const onCheck: TreeProps['onCheck'] = (checkedKeys, info) => {
    console.log('onCheck', checkedKeys, info);
  };

  return (
    <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}
  />
  );
}

export default App;

Step 4. Add the below code in package.json

{
  "name": "treeappant",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "@ant-design/icons": "^5.1.4",
    "@testing-library/jest-dom": "^5.16.5",
    "@testing-library/react": "^13.4.0",
    "@testing-library/user-event": "^13.5.0",
    "@types/jest": "^27.5.2",
    "@types/node": "^16.18.34",
    "@types/react": "^18.2.8",
    "@types/react-dom": "^18.2.4",
    "antd": "^5.5.2",
    "react": "^18.2.0",
    "react-dom": "^18.2.0",
    "react-scripts": "5.0.1",
    "typescript": "^4.9.5",
    "web-vitals": "^2.1.4"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test",
    "eject": "react-scripts eject"
  },
  "eslintConfig": {
    "extends": [
      "react-app",
      "react-app/jest"
    ]
  },
  "browserslist": {
    "production": [
      ">0.2%",
      "not dead",
      "not op_mini all"
    ],
    "development": [
      "last 1 chrome version",
      "last 1 firefox version",
      "last 1 safari version"
    ]
  }
}

Step 5. Run the below command to run the application.

npm start

After running this command, we will get this Tree.

Summary

In this article, we learned how to create a Tree using Ant Design UI with React JS and Typescript.