How do I expand multiple items?

Set expandMode = 'multiple' to allow several panels to be open simultaneously.

smart-ui

JavaScript

Angular

Vue

React

Getting Started with React Accordion Component

Smart UI React targets React 18+ and current Node LTS for tooling; use TypeScript templates when you want typed props and events.

Demo source (Smart UI repo): react/source/accordion/basic/App.jsx

1 Create a Vite + React + TypeScript app

npm create vite@latest my-smart-app -- --template react-ts

```
cd my-smart-app
```
then
```
npm install
```

2 Install Smart UI for React

npm install smart-webcomponents-react

3 Import styles and render the component

Open src/App.tsx (or App.jsx if you chose JavaScript). The snippet below matches Smart UI React demos for this widget:

import 'smart-webcomponents-react/source/styles/smart.default.css';
import './App.css';
import React from "react";
import { Accordion, AccordionItem } from 'smart-webcomponents-react/accordion';

const App = () => {
  return (
    <div>
      <Accordion>
        <AccordionItem label="First Item">First Item Content.</AccordionItem>
        <AccordionItem label="Second Item">Second Item Content.</AccordionItem>
        <AccordionItem label="Third Item">Third Item Content.</AccordionItem>
        <AccordionItem label="Fourth Item">Fourth Item Content.</AccordionItem>
      </Accordion>
    </div>
  );
};

export default App;

4 Run the dev server

npm run dev

Open the URL Vite prints (often http://localhost:5173/).

Alternative: Next.js

Create an app with npx create-next-app@latest (Pages Router or App Router). Install the same package (npm install smart-webcomponents-react), then reuse the imports and default export from step 3 in pages/_app.tsx, the App Router root app/layout.tsx, or your top-level layout component so styles and the widget tree load once.

Common Use Cases

Expand specific item
Programmatically open an accordion section
```
accordion.expand(0); // Expand first item
```
Single expansion mode
Allow only one panel open at a time
```
accordion.expandMode = 'single';
```

Troubleshooting

How do I expand multiple items?: Set expandMode = 'multiple' to allow several panels to be open simultaneously.

TypeScript Support

Types ship with smart-webcomponents-react. Import the component and prop types:

import type { Accordion, AccordionProps } from 'smart-webcomponents-react/accordion';

The generated wrappers expose on* callbacks (for example onChange) whose arguments are standard DOM Event values unless the widget typings narrow them further.

Live demos

Supported stacks: Smart UI targets Angular 17+, React 18+, Vue 3+, Node 18 LTS, and evergreen browsers; pin exact package versions to your org policy.