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Getting started with JavaScript ProgressButton control

This section explains how to create a simple ProgressButton, and configure its available functionalities in TypeScript, using Essential JS 2 quickstart seed repository.

Dependencies

The list of dependencies required to use the ProgressButton component in your application is given as follows:

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

Setup your development environment

To get started with the ProgressButton component, clone the Essential JS 2 quickstart project and install the npm packages by using the following commands.

git clone https://github.com/syncfusion/ej2-quickstart.git quickstart
cd quickstart
npm install

The project is preconfigured with common settings (src/styles/styles.css, system.config.js) to start all the Essential JS 2 components.

[src/system.config.js]

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

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

System.import('app.ts').catch(console.error.bind(console)).then(function () {
    document.getElementById('loader').style.display = "none";
    document.getElementById('container').style.visibility = "visible";
});

Add ProgressButton to the project

Add the HTML button tag with id attribute as the element to your index.html file.

[src/index.html]

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

<head>
    <title>Essential JS 2</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>
        <!--element which is going to render-->
         <button id="element"></button>
    </div>

</body>

</html>

Import the ProgressButton component in your app.ts file and initialize it to #element as shown in the following.

[src/app/app.ts]

import { ProgressButton } from '@syncfusion/ej2-splitbuttons';

// Initialize the ProgressButton component.
let progressBtn: ProgressButton = new ProgressButton({content: 'Spin Left' });

// Render initialized ProgressButton.
progressBtn.appendTo('#element');

Adding Style sheet to the Application

To render ProgressButton component, need to import Button and its dependent components styles as given below in style.css.

@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";

Run the application

Run the application in the browser using the following command:

npm start

The following example shows a basic ProgressButton component.

Source
Preview
app.ts
index.html
import { ProgressButton } from '@syncfusion/ej2-splitbuttons';

// Initialize the ProgressButton component.
let progressBtn: ProgressButton = new ProgressButton({content: 'Spin Left'});

// Render initialized ProgressButton.
progressBtn.appendTo('#progressbtn');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 ProgressButton</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="This demo for Essential JS2 Progress button has progress indicator and spinner. It supports texts, icons, styles, sizes, positions, and its customization." />
    <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='loader'>LOADING....</div>
    <div id='container'>
        <button id='progressbtn'></button>
    </div>
</body>

</html>

ProgressButton supports different styles, types and sizes like Button. In addition, it also supports top and bottom icon positions.

Enable progress in button

You can enable the background filler UI by setting the enableProgress property to true.

Source
Preview
app.ts
index.html
styles.css
import { ProgressButton } from '@syncfusion/ej2-splitbuttons';
import { enableRipple } from '@syncfusion/ej2-base';

enableRipple(false);

// Initialize the ProgressButton component.
let progressBtn: ProgressButton = new ProgressButton({content: 'Spin Left', enableProgress: true});

// Render initialized ProgressButton.
progressBtn.appendTo('#progressbtn');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 ProgressButton</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="This demo for Essential JS2 Progress button has progress indicator and spinner. It supports texts, icons, styles, sizes, positions, and its customization." />
    <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='loader'>LOADING....</div>
    <div id='container'>
        <button id='progressbtn'></button>
    </div>
</body>

</html>
@font-face {
	font-family: 'btn-icon';
	src:
	url(data:application/x-font-ttf;charset=utf-8;base64,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) format('truetype');
	font-weight: normal;
	font-style: normal;
}

.e-btn-sb-icon {
	font-family: 'btn-icon' !important;
	speak: none;
	font-size: 55px;
	font-style: normal;
	font-weight: normal;
	font-variant: normal;
	text-transform: none;
	line-height: 1;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
}

.e-download::before {
  content: '\e706';
}

.e-play::before {
  content: '\e700';
}

.e-pause::before {
  content: '\e701';
}

#container {
    visibility: hidden;
}

#loader {
  color: #008cff;
  height: 40px;
  left: 45%;
  position: absolute;
  top: 45%;
  width: 30%;
}

See Also