Getting Started
8 May 202513 minutes to read
This section briefly explains how to create a simple DropDownList component and configure its available functionalities in React.
To get start quickly with React DropDownList, you can check on this video:
Dependencies
The following list of dependencies are required to use the DropDownList
component in your application.
|-- @syncfusion/ej2-react-dropdowns
|-- @syncfusion/ej2-base
|-- @syncfusion/ej2-data
|-- @syncfusion/ej2-react-base
|-- @syncfusion/ej2-dropdowns
|-- @syncfusion/ej2-lists
|-- @syncfusion/ej2-inputs
|-- @syncfusion/ej2-navigations
|-- @syncfusion/ej2-popups
|-- @syncfusion/ej2-buttons
Installation and configuration
To easily set up a React application, use create-vite-app
, which provides a faster development environment, smaller bundle sizes, and optimized builds compared to traditional tools like create-react-app
. For detailed steps, refer to the Vite installation instructions. Vite sets up your environment using JavaScript and optimizes your application for production.
Note: To create a React application using
create-react-app
, refer to this documentation for more details.
To create a new React application, run the following command.
npm create vite@latest my-app
To set-up a React application in TypeScript environment, run the following command.
npm create vite@latest my-app -- --template react-ts
cd my-app
npm run dev
To set-up a React application in JavaScript environment, run the following command.
npm create vite@latest my-app -- --template react
cd my-app
npm run dev
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 DropDownList component, use the following command
npm install @syncfusion/ej2-react-dropdowns –save
Adding DropDownList component
Now, you can start adding DropDownList component in the application. For getting started, add the DropDownList component in src/App.tsx
file using following code.
Add the below code in the src/App.tsx
to initialize the DropDownList.
[Class-component]
import { DropDownListComponent } from '@syncfusion/ej2-react-dropdowns';
import * as React from 'react';
import * as ReactDOM from "react-dom";
export default class App extends React.Component<{}, {}> {
public render() {
return (
// specifies the tag for render the DropDownList component
<DropDownListComponent id='ddlelement'/>
);
}
}
ReactDOM.render(<App />, document.getElementById('sample'));
[Functional-component]
import { DropDownListComponent } from '@syncfusion/ej2-react-dropdowns';
import * as React from 'react';
import * as ReactDOM from "react-dom";
function App() {
return (
// specifies the tag for render the DropDownList component
<DropDownListComponent id='ddlelement'/>
);
}
ReactDOM.render(<App />, document.getElementById('sample'));
Adding CSS reference
Import the DropDownList component required CSS references as follows in src/App.css
.
/* import the DropDownList dependency styles */
@import "../node_modules/@syncfusion/ej2-base/styles/material.css";
@import "../node_modules/@syncfusion/ej2-inputs/styles/material.css";
@import "../node_modules/@syncfusion/ej2-react-dropdowns/styles/material.css";
Binding data source
After initialization, populate the DropDownList with data using the dataSource property. Here, an array of string values is passed to the DropDownList component.
[Class-component]
import { DropDownListComponent } from '@syncfusion/ej2-react-dropdowns';
import * as React from 'react';
import * as ReactDOM from 'react-dom';
export default class App extends React.Component<{}, {}> {
// define the array of data
private sportsData: string[] = ['Badminton', 'Cricket', 'Football', 'Golf', 'Tennis'];
public render() {
return (
// specifies the tag for render the DropDownList component
<DropDownListComponent id="ddlelement" dataSource={this.sportsData} />
);
}
}
ReactDOM.render(<App />, document.getElementById('sample'));
[Functional-component]
import { DropDownListComponent } from '@syncfusion/ej2-react-dropdowns';
import * as React from 'react';
import * as ReactDOM from 'react-dom';
function App() {
// define the array of data
const sportsData: string[] = ['Badminton', 'Cricket', 'Football', 'Golf', 'Tennis'];
return (
// specifies the tag for render the DropDownList component
<DropDownListComponent id="ddlelement" dataSource={sportsData} />
);
}
ReactDOM.render(<App />, document.getElementById('sample'));
Run the application
Now run the npm run dev
command in the console to start the development server. This command compiles your code and serves the application locally, opening it in the browser.
npm run dev
[Class-component]
import { DropDownListComponent } from '@syncfusion/ej2-react-dropdowns';
import * as React from 'react';
import * as ReactDOM from 'react-dom';
export default class App extends React.Component {
// define the array of data
sportsData = ['Badminton', 'Cricket', 'Football', 'Golf', 'Tennis'];
render() {
return (
// specifies the tag for render the DropDownList component
<DropDownListComponent id="ddlelement" dataSource={this.sportsData} placeholder="Select a game"/>);
}
}
ReactDOM.render(<App />, document.getElementById('sample'));
import { DropDownListComponent } from '@syncfusion/ej2-react-dropdowns';
import * as React from 'react';
import * as ReactDOM from 'react-dom';
export default class App extends React.Component<{}, {}> {
// define the array of data
private sportsData: string[] = ['Badminton', 'Cricket', 'Football', 'Golf', 'Tennis'];
public render() {
return (
// specifies the tag for render the DropDownList component
<DropDownListComponent id="ddlelement" dataSource={this.sportsData} placeholder="Select a game" />
);
}
}
ReactDOM.render(<App />, document.getElementById('sample'));
[Functional-component]
import { DropDownListComponent } from '@syncfusion/ej2-react-dropdowns';
import * as React from 'react';
import * as ReactDOM from 'react-dom';
function App() {
// define the array of data
const sportsData = ['Badminton', 'Cricket', 'Football', 'Golf', 'Tennis'];
return (
// specifies the tag for render the DropDownList component
<DropDownListComponent id="ddlelement" dataSource={sportsData} placeholder="Select a game"/>);
}
ReactDOM.render(<App />, document.getElementById('sample'));
import { DropDownListComponent } from '@syncfusion/ej2-react-dropdowns';
import * as React from 'react';
import * as ReactDOM from 'react-dom';
function App(){
// define the array of data
const sportsData: string[] = ['Badminton', 'Cricket', 'Football', 'Golf', 'Tennis'];
return (
// specifies the tag for render the DropDownList component
<DropDownListComponent id="ddlelement" dataSource={sportsData} placeholder="Select a game" />
);
}
ReactDOM.render(<App />, document.getElementById('sample'));
Configure the Popup List
By default, the width of the popup list automatically adjusts according to the DropDownList input element’s width, and the height of the popup list has ‘300px’.
The height and width of the popup list can also be customized using the popupHeight and popupWidth properties respectively.
In the following sample, popup list’s width and height are configured.
[Class-component]
import { DropDownListComponent } from '@syncfusion/ej2-react-dropdowns';
import * as React from 'react';
import * as ReactDOM from 'react-dom';
export default class App extends React.Component {
// define the array of data
sportsData = ['Badminton', 'Basketball', 'Cricket', 'Football', 'Golf', 'Hockey', 'Rugby', 'Snooker', 'Tennis'];
render() {
return (
// specifies the tag for render the DropDownList component
<DropDownListComponent id="ddlelement" dataSource={this.sportsData} popupHeight="200px" popupWidth="250px" placeholder="select a game"/>);
}
}
ReactDOM.render(<App />, document.getElementById('sample'));
import { DropDownListComponent } from '@syncfusion/ej2-react-dropdowns';
import * as React from 'react';
import * as ReactDOM from 'react-dom';
export default class App extends React.Component<{}, {}> {
// define the array of data
private sportsData: string[] = ['Badminton', 'Basketball', 'Cricket', 'Football', 'Golf', 'Hockey', 'Rugby','Snooker', 'Tennis'];
public render() {
return (
// specifies the tag for render the DropDownList component
<DropDownListComponent id="ddlelement" dataSource={this.sportsData} popupHeight="200px" popupWidth="250px" placeholder="select a game" />
);
}
}
ReactDOM.render(<App />, document.getElementById('sample'));
[Functional-component]
import { DropDownListComponent } from '@syncfusion/ej2-react-dropdowns';
import * as React from 'react';
import * as ReactDOM from 'react-dom';
function App() {
// define the array of data
const sportsData = ['Badminton', 'Basketball', 'Cricket', 'Football', 'Golf', 'Hockey', 'Rugby', 'Snooker', 'Tennis'];
return (
// specifies the tag for render the DropDownList component
<DropDownListComponent id="ddlelement" dataSource={sportsData} popupHeight="200px" popupWidth="250px" placeholder="select a game"/>);
}
ReactDOM.render(<App />, document.getElementById('sample'));
import { DropDownListComponent } from '@syncfusion/ej2-react-dropdowns';
import * as React from 'react';
import * as ReactDOM from 'react-dom';
function App() {
// define the array of data
const sportsData: string[] = ['Badminton', 'Basketball', 'Cricket', 'Football', 'Golf', 'Hockey', 'Rugby','Snooker', 'Tennis'];
return (
// specifies the tag for render the DropDownList component
<DropDownListComponent id="ddlelement" dataSource={sportsData} popupHeight="200px" popupWidth="250px" placeholder="select a game" />
);
}
ReactDOM.render(<App />, document.getElementById('sample'));