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ReactJS UI Ant Design Collapse Component

  • Last Updated : 30 May, 2021

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/




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