How To Use ComboBox in ReactJS?

When developing React applications, creating user-friendly forms with dropdowns or select inputs is common. However, sometimes you need more than just a static dropdown list—you need a ComboBox. A ComboBox combines the functionality of a dropdown and an input field, allowing users to either select from predefined options or enter their own input.

In this article, we will explore how to use ComboBox in ReactJS.

Why Use a ComboBox?

ComboBoxes improves user experience by offering flexibility and efficiency. They are commonly used in forms where a user might want to either select an option from a list or input their own custom value. This is useful in cases like searching for a location, choosing a tag, or selecting a product.

Benefits of Using a ComboBox:

• Improved Usability: Combines the convenience of a dropdown with the flexibility of an input field.
• Space Efficiency: Reduces the need for multiple input fields (e.g., a dropdown and a separate text field).
• Enhanced User Experience: Autocomplete and filtering features help users find options faster.

Steps To Use ComboBox in ReactJS

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

npx create-react-app foldername
cd foldername

Step 2: Install the material-ui modules using the following command:

npm install @material-ui/core
npm install @material-ui/lab

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 TextField from '@material-ui/core/TextField';
import Autocomplete from '@material-ui/lab/Autocomplete';

const App = () => {

    // Our sample dropdown options
    const options = ['Monday', 'Tuesday', 'Thursday',
        'Friday', 'Saturday', 'Sunday']

    return (
        <div style={{ marginLeft: '40%', marginTop: '60px' }}>
            <h3>Greetings from GeeksforGeeks!</h3>
            <Autocomplete
                options={options}
                style={{ width: 300 }}
                renderInput={(params) =>
                    <TextField {...params} label="Combo box" variant="outlined" />}
            />
        </div>
    );
}

export default App

Run the application using the following command:

npm start

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