ReactJS UI Ant Design Collapse Component

Ant Design Library has this component pre-built, and it is very easy to integrate as well. The collapse component is used as a content area that can be collapsed and expanded. We can use the following approach in ReactJS to use the Ant Design Collapse Component.

Collapse Props:

• accordion: It is used to collapse renders as Accordion if this value is set to true.
• activeKey: It is used to denote the key of the active panel.
• bordered: It is used to toggle the rendering of the border around the collapse block.
• collapsible: It is used to specify whether the panel of children or trigger area to be collapsible or not.
• defaultActiveKey: It is used to denote the key of the initial active panel.
• destroyInactivePanel: It is used to destroy the Inactive panel.
• expandIcon: It is used to allow customization of the collapse icon.
• expandIconPosition: It is used to set expand icon position.
• ghost: It is used to make the collapse background transparent and borderless.
• onChange: It is a callback function that is triggered when the active panel is changed.

Collapse.Panel Props

• collapsible: It is used to specify whether the panel or trigger area to be collapsible or not.
• extra: It is used to denote the extra element in the corner.
• forceRender: When clicking on the header, it is used to force rendering of content on panel, instead of lazy rending.
• header: It is used to define the title of the panel.
• key: It is the unique key for identifying the panel.
• showArrow: If true, it will show an arrow icon.

Creating React Application And Installing Module:

• Step 1: Create a React application using the following command:

  npx create-react-app foldername

• Step 2: After creating your project folder i.e. foldername, move to it using the following command:

  cd foldername

• Step 3: After creating the ReactJS application, Install the required module using the following command:

  npm install antd

Project Structure: It will look like the following.

Project Structure

Example: Now write down the following code in the App.js file. Here, App is our default component where we have written our code.

App.js

import React from 'react'
import "antd/dist/antd.css";
import { Collapse } from 'antd';

const { Panel } = Collapse;

export default function App() {
  return (
    <div style={{
      display: 'block', width: 700, padding: 30
    }}>
      <h4>ReactJS Ant-Design Collapse Component</h4>
      <Collapse>
        <Panel header="GeeksforGeeks" key="1">

<p>Greetings from GeeksforGeeks</p>

        </Panel>
        <Panel header="Computer Science" key="2">

<p>This is Best computer Science Portal</p>

        </Panel>
      </Collapse>
    </div>
  );
}

Step to Run Application: Run the application using the following command from the root directory of the project:

npm start

Output: Now open your browser and go to http://localhost:3000/, you will see the following output:

Reference: https://ant.design/components/collapse/