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Getting Started

This section briefly explains how to create a simple Sidebar component, and configure it in TypeScript using Essential JS 2 quickstart  seed repository.

Dependencies

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

|-- @syncfusion/ej2-navigations
  |-- @syncfusion/ej2-base
  |-- @syncfusion/ej2-build
  |-- @syncfusion/ej2-lists
  |-- @syncfusion/ej2-data
  |-- @syncfusion/ej2-inputs
    |-- @syncfusion/ej2-splitbuttons
  |-- @syncfusion/ej2-popups
    |-- @syncfusion/ej2-buttons

Installation and configuration

  • Clone the Essential JS 2 quickstart application project from GitHub, and install the necessary npm packages using the following command.
git clone https://github.com/syncfusion/ej2-quickstart.git quickstart
cd quickstart
npm install

By default, the project is configured with all the Essential JS 2 dependencies. For better understanding, remove all the dependencies from src/system.config.js to get started with the Sidebar component.

[src/system.config.js]

System.config({
    paths: {
        'syncfusion:': './node_modules/@syncfusion/',
    },
    map: {
        app: 'app',

        //Syncfusion packages mapping
        "@syncfusion/ej2-base": "syncfusion:ej2-base/dist/ej2-base.umd.min.js",
        "@syncfusion/ej2-buttons": "syncfusion:ej2-buttons/dist/ej2-buttons.umd.min.js",
        "@syncfusion/ej2-splitbuttons": "syncfusion:ej2-splitbuttons/dist/ej2-splitbuttons.umd.min.js",
        "@syncfusion/ej2-navigations": "syncfusion:ej2-navigations/dist/ej2-navigations.umd.min.js",
        "@syncfusion/ej2-popups": "syncfusion:ej2-popups/dist/ej2-popups.umd.min.js",
        "@syncfusion/ej2-data": "syncfusion:ej2-data/dist/ej2-data.umd.min.js",
        "@syncfusion/ej2-lists": "syncfusion:ej2-lists/dist/ej2-lists.umd.min.js",
        "@syncfusion/ej2-inputs": "syncfusion:ej2-inputs/dist/ej2-inputs.umd.min.js",
    },
    packages: {
        'app': { main: 'app', defaultExtension: 'js' }
    }
});

System.import('app');

Adding Style sheet to the Application

To render the Sidebar component, need to import sidebar and its dependent component’s styles as given below in style.css.

@import "../node_modules/@syncfusion/ej2-base/styles/material.css";
@import "../node_modules/@syncfusion/ej2-navigations/styles/material.css";

Note: If you want to refer the combined component styles, please make use of our CRG (Custom Resource Generator) in your application.

Initialize Sidebar using HTML elements

A Sidebar can be initialized using any HTML element. Most probably the <aside> tag is used to render Sidebar as it contains secondary content aside from the main content. The immediate sibling element of the Sidebar will be considered as the main content.

To render the Sidebar, refer to the following structure of the HTML elements:

[src/index.html]

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

<head>
    <title>Essential JS 2 Sidebar</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no" />
    <meta name="description" content="Essential JS 2" />
    <meta name="author" content="Syncfusion" />
    <link rel="shortcut icon" href="resources/favicon.ico" />
    <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />

    <!--style reference from app-->
    <link href="/styles/styles.css" rel="stylesheet" />

    <!--system js reference and configuration-->
    <script src="node_modules/systemjs/dist/system.src.js" type="text/javascript"></script>
    <script src="system.config.js" type="text/javascript"></script>
</head>

<body>
        <div id='container'>
        <aside id="default">
            <div class="title"> Sidebar </div>
        </aside>
        <!-- end of sidebar element -->
        <!-- main content declaration -->
        <div>
            <div class="title">Main content</div>
            <div class="sub-title"> Content goes here</div>
        </div>
    </div>
</body>

</html>
  • Import the Sidebar component to your app.ts file, and initialize it to the #default as follows:

[src/app/app.ts]

import { Sidebar } from '@syncfusion/ej2-navigations';
import { enableRipple } from '@syncfusion/ej2-base';
enableRipple(true);

let defaultSidebar: Sidebar = new Sidebar();
defaultSidebar.appendTo('#default');
    //end of sidebar initialization
Source
Preview
app.ts
index.html
import { Sidebar } from '@syncfusion/ej2-navigations';
import { enableRipple } from '@syncfusion/ej2-base';
enableRipple(true);

let defaultSidebar: Sidebar = new Sidebar({
});
defaultSidebar.appendTo('#default');
    //end of sidebar initialization
<!DOCTYPE html>
<html lang="en">

<head>
    <title>Essential JS 2 Sidebar</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.3/css/bootstrap.min.css" rel="stylesheet" />
    <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-navigations/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='loader'>LOADING....</div>
    <div id='container'>
        <aside id="default">
            <div class="title"> Sidebar </div>
        </aside>
        <!-- end of sidebar element -->
        <!-- main content declaration -->
        <div>
            <div class="title">Main content</div>
            <div class="sub-title"> Content goes here</div>
        </div>
    </div>
</body>

</html>

Sidebar will, by default, fit the size of its content. There is also an option to set a certain width using the width property.

Enable backdrop

Enabling the showBackdrop in the Sidebar component will prevent the main content from user interactions, when it is in expanded state. Here, the DOM elements will not get changed. It only closes the main content by covering with a black backdrop overlay and focuses the Sidebar in the screen.

Source
Preview
app.ts
index.html
import { Sidebar } from '@syncfusion/ej2-navigations';
import { enableRipple } from '@syncfusion/ej2-base';
enableRipple(true);

let defaultSidebar: Sidebar = new Sidebar({
    showBackdrop: true, type: "Push",width: '280px'
});
defaultSidebar.appendTo('#default-sidebar');
//end of Sidebar initialization

// Toggle(Open/Close) the Sidebar
document.getElementById('toggle').onclick = (): void => {
    defaultSidebar.toggle();
};

// Close the Sidebar
document.getElementById('close').onclick = (): void => {
    defaultSidebar.hide();
};
<!DOCTYPE html>
<html lang="en">

<head>
    <title>Essential JS 2 Sidebar</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.3/css/bootstrap.min.css" rel="stylesheet" />
    <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-lists/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-navigations/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='loader'>LOADING....</div>
    <div id='container'>
        <aside id="default-sidebar">
            <div class="title"> Sidebar content</div>
            <div class="sub-title">
                Click the button to close the Sidebar.
            </div>
            <div class="center-align">
                <button id="close" class="e-btn close-btn">Close Sidebar</button>
            </div>
        </aside>
        <!-- end of sidebar element -->
        <!-- main content declaration -->
        <div>
            <div class="title">Main content</div>
            <div class="sub-title"> Click the button to open/close the Sidebar.</div>
            <div style="padding:20px" class="center-align">
                <button id="toggle" class="e-btn e-info">Toggle Sidebar</button>
            </div>
        </div>
</body>

</html>

Position

Positioning the Sidebar to the right or left of the main content can be achieved by using the position property. If the position is not set, the Sidebar will expand from the left to the body element.

Source
Preview
app.ts
index.html
import { Sidebar } from '@syncfusion/ej2-navigations';
import { Button,RadioButton,changeArgs } from '@syncfusion/ej2-buttons';
import { enableRipple } from '@syncfusion/ej2-base';
enableRipple(true);
//Sidebar initialization
 let defaultSidebar: Sidebar = new Sidebar({
    width: "280px",
    type: "Push",
    target: document.querySelector('.maincontent')
    });
    defaultSidebar.appendTo('#default-sidebar');
    //end of Sidebar initialization

//toggle button initialization
let togglebtn: Button = new Button({iconCss: 'e-icons burg-icon', isToggle: true, content:'Open'}, '#toggle');

//Click Event.
document.getElementById('toggle').onclick = (): void => {
        if (document.getElementById('toggle').classList.contains('e-active')) {
            togglebtn.content = 'Close';
            defaultSidebar.show();
        } else {
            togglebtn.content = 'Open';
            defaultSidebar.hide();
        }
    };

    // Close the Sidebar
    document.getElementById('close').onclick = (): void => {
        defaultSidebar.hide();
        document.getElementById('toggle').classList.remove('e-active');
        togglebtn.content = 'Open'
    };

let positionLeft: RadioButton = new RadioButton({ label: 'Left', name: 'state', checked: true,change:Change });
positionLeft.appendTo('#left');

//unchecked state.
let positionRight: RadioButton = new RadioButton({ label: 'Right', name: 'state',change:Change });
positionRight.appendTo('#right');

function Change(args: changeArgs){
  defaultSidebar.position = (args.event.target.id == "left") ? "Left" : "Right";
}
<!DOCTYPE html>
<html lang="en">

<head>
    <title>Essential JS 2 Sidebar</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.3/css/bootstrap.min.css" rel="stylesheet" />
    <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-navigations/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='loader'>LOADING....</div>
    <div id='container'>
        <aside id="default-sidebar">
            <div class="title"> Sidebar content</div>
            <div id="list"></div>
            <div class="sub-title">
                Click the button to close the Sidebar.
            </div>
            <div class="center-align">
                <button id="close" class="e-btn close-btn">Close Sidebar</button>
            </div>
        </aside>
        <!-- end of sidebar element -->
        <!-- main content declaration -->

        <div id="head">
            <button id="toggle" class="e-btn e-info"></button>
        </div>
        <div class="maincontent" style="height:335px;border:1px solid gray">
            <div>
                <div class="title">Main content</div>
                <div class="sub-title">
                    <div class="radiobutton">
                        <input type="radio" id="left" />
                    </div>
                    <div class="radiobutton">
                        <input type="radio" id="right" />
                    </div>
                </div>
            </div>
        </div>
</body>

</html>