Getting started with React DropDownButton component

09 Jun 2021 / 3 minutes to read

This section briefly explains how to create a simple DropDownButton component and configure its available functionalities in React.

Dependencies

The following list of dependencies are required to use the DropDownButton component in your application.

|-- @syncfusion/ej2-react-splitbuttons
    |-- @syncfusion/ej2-react-base
    |-- @syncfusion/ej2-base
    |-- @syncfusion/ej2-splitbuttons
        |-- @syncfusion/ej2-popups
            |-- @syncfusion/ej2-buttons

Installation and configuration

You can use Create-react-app to setup the applications. To install create-react-app run the following command.

npm install -g create-react-app

Start a new project using create-react-app command as follows

create-react-app quickstart --scripts-version=react-scripts-ts

cd quickstart

create-react-app quickstart

cd quickstart

‘react-scripts-ts’ is used for creating React app with typescript.

Adding syncfusion packages

All the available Essential JS 2 packages are published in npmjs.com public registry. You can choose the component that you want to install.

To install DropDownButton component, use the following command

npm install @syncfusion/ej2-react-splitbuttons –save

Adding DropDownButton component

Now, you can start adding DropDownButton component in the application. For getting started, add the DropDownButton component in src/App.tsx file using following code.

Add the below code in the src/App.tsx to initialize the DropDownButton.

import { enableRipple } from '@syncfusion/ej2-base';
import { DropDownButtonComponent } from '@syncfusion/ej2-react-splitbuttons';
import * as React from 'react';
import './App.css';

enableRipple(true);

// To render DropDownButton.
export default class App extends React.Component<{}, {}> {
  public render() {
    return (
      <div>
        <DropDownButtonComponent id="element" />
      </div>
    );
  }
}

import { enableRipple } from '@syncfusion/ej2-base';
import { DropDownButtonComponent } from '@syncfusion/ej2-react-splitbuttons';
import * as React from 'react';
import './App.css';
enableRipple(true);
// To render DropDownButton.
export default class App extends React.Component {
    render() {
        return (<div>
        <DropDownButtonComponent id="element"/>
      </div>);
    }
}

Adding CSS reference

Import the DropDownButton component required CSS references as follows in src/App.css.

/* import the DropDownButton dependency styles */
@import "../node_modules/@syncfusion/ej2-base/styles/material.css";
@import "../node_modules/@syncfusion/ej2-buttons/styles/material.css";
@import "../node_modules/@syncfusion/ej2-popups/styles/material.css";
@import "../node_modules/@syncfusion/ej2-splitbuttons/styles/material.css";

Binding data source

After initialization, populate the DropDownButton with data using the items property. Here, an array of string values is passed to the DropDownButton component.

import { enableRipple } from '@syncfusion/ej2-base';
import { DropDownButtonComponent, ItemModel } from '@syncfusion/ej2-react-splitbuttons';
import * as React from 'react';
import './App.css';

enableRipple(true);

// To render DropDownButton.
export default class App extends React.Component<{}, {}> {

  public items: ItemModel[] = [
    {
      text: 'Cut',
    },
    {
      text: 'Copy',
    },
    {
      text: 'Paste',
    }];
  public render() {
    return (
      <div>
        <DropDownButtonComponent id="element" items={this.items}> Clipboard </DropDownButtonComponent>
      </div>
    );
  }
}

import { enableRipple } from '@syncfusion/ej2-base';
import { DropDownButtonComponent } from '@syncfusion/ej2-react-splitbuttons';
import * as React from 'react';
import './App.css';
enableRipple(true);
// To render DropDownButton.
export default class App extends React.Component {
    constructor() {
        super(...arguments);
        this.items = [
            {
                text: 'Cut',
            },
            {
                text: 'Copy',
            },
            {
                text: 'Paste',
            }
        ];
    }
    render() {
        return (<div>
        <DropDownButtonComponent id="element" items={this.items}> Clipboard </DropDownButtonComponent>
      </div>);
    }
}

Run the application

After completing the configuration required to render a basic DropDownButton, run the following command to display the output in your default browser.

npm start

Source

Preview

app.tsx

index.html

app.jsx

import { enableRipple } from '@syncfusion/ej2-base';
import { ButtonComponent } from '@syncfusion/ej2-react-buttons';
import { DropDownButtonComponent, ItemModel } from '@syncfusion/ej2-react-splitbuttons';
import * as React from 'react';
import * as ReactDom from 'react-dom';
enableRipple(true);

// To render DropDownButton.
class App extends React.Component<{}, {}> {

  public items: ItemModel[] = [
        {
            text: 'Cut',
        },
        {
            text: 'Copy',
        },
        {
            text: 'Paste',
        }];
  public render() {
    return (
      <div>
       <DropDownButtonComponent id="element" items = {this.items}> Clipboard </DropDownButtonComponent>
      </div>
    );
  }
}
ReactDom.render(<App />,document.getElementById('button'));

<!DOCTYPE html>
<html lang="en">

<head>
    <title>Syncfusion React DropDownButton</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Essential JS 2 for React Components" />
    <meta name="author" content="Syncfusion" />
    <link href="//cdn.syncfusion.com/ej2/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
	<link href="styles.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
</head>

<body>
        <div id='button'>
            <div id='loader'>Loading....</div>
        </div>
</body>

</html>

import { enableRipple } from '@syncfusion/ej2-base';
import { DropDownButtonComponent } from '@syncfusion/ej2-react-splitbuttons';
import * as React from 'react';
import * as ReactDom from 'react-dom';
enableRipple(true);
// To render DropDownButton.
class App extends React.Component {
    constructor() {
        super(...arguments);
        this.items = [
            {
                text: 'Cut',
            },
            {
                text: 'Copy',
            },
            {
                text: 'Paste',
            }
        ];
    }
    render() {
        return (<div>
       <DropDownButtonComponent id="element" items={this.items}> Clipboard </DropDownButtonComponent>
      </div>);
    }
}
ReactDom.render(<App />, document.getElementById('button'));