Es5 getting started in EJ2 JavaScript Uploader control
2 Jun 202315 minutes to read
This section explains how to create and configure the simple uploader component.
Dependencies
The following are the dependencies required to use the uploader component in your application:
|-- @syncfusion/ej2-inputs
|-- @syncfusion/ej2-base
|-- @syncfusion/ej2-buttons
Set up of the development environment
To get started with the uploader component, you have to 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.
Initialize the uploader
The uploader can be initialized through input tag. Add the HTML input element that needs to be initialized as a uploader in index.html
.
[src/index.html]
<!DOCTYPE html>
<html lang="en">
<head>
<title>Essential JS 2 Uploader component</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 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' style="margin:0 auto; width:300px;">
<!--element which is going to render the Uploader-->
<input type="file" id='fileupload' />
</div>
</body>
</html>
The Custom Resource Generator (CRG) is an online web tool, which can be used to generate the custom script and styles for a set of specific components.
This web tool is useful to combine the required component scripts and styles in a single file.
Now, import the uploader component to your app.ts
and initialize it to the element #fileupload
as follows.
[src/app/app.ts]
// initialize Uploader component
var uploadObject = new ej.inputs.Uploader();
// render initialized Uploader
uploadObject.appendTo('#fileupload');
Run the application
After completing the configuration to render the basic uploader, run the following command to display the output in your default browser.
npm run start
From v16.2.41 version, the
Essential JS2 AJAX
library has been integrated for uploader server requests. Hence, use the third partypromise
library like blue-bird to use the uploader in Internet Explorer.
The following example illustrates the output in your browser.
<!DOCTYPE html><html lang="en"><head>
<title>Essential JS 2 UPloader</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description" content="Essential JS 2 Uploader Component">
<meta name="author" content="Syncfusion">
<link href="index.css" rel="stylesheet">
<link href="https://cdn.syncfusion.com/ej2/27.1.48/ej2-base/styles/material.css" rel="stylesheet">
<link href="https://cdn.syncfusion.com/ej2/27.1.48/ej2-inputs/styles/material.css" rel="stylesheet">
<link href="https://cdn.syncfusion.com/ej2/27.1.48/ej2-popups/styles/material.css" rel="stylesheet">
<link href="https://cdn.syncfusion.com/ej2/27.1.48/ej2-buttons/styles/material.css" rel="stylesheet">
<script src="https://cdn.syncfusion.com/ej2/27.1.48/dist/ej2.min.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>
<body>
<div id="container" class="fileupload">
<input type="file" id="fileupload" name="UploadFiles">
</div>
<script>
var ele = document.getElementById('container');
if(ele) {
ele.style.visibility = "visible";
}
</script>
<script src="index.js" type="text/javascript"></script>
</body></html>
#container {
visibility: hidden;
margin: 0 auto;
width: 400px;
}
#loader {
color: #008cff;
font-family: 'Helvetica Neue','calibiri';
font-size: 14px;
height: 40px;
left: 45%;
position: absolute;
top: 45%;
width: 30%;
}
Adding drop area
By default, the uploader component allows to upload files by drag the files from file explorer, and drop into the drop area. You can configure any other external element as drop target using dropArea property.
In the following sample, drop target is configured.
// initialize Uploader component
var uploadObject = new ej.inputs.Uploader({
autoUpload: false,
dropArea: document.getElementById('droparea')
});
// render initialized Uploader
uploadObject.appendTo('#fileupload');
<!DOCTYPE html><html lang="en"><head>
<title>Essential JS 2 Uploader</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description" content="Essential JS 2 Uploader Component">
<meta name="author" content="Syncfusion">
<link href="index.css" rel="stylesheet">
<link href="https://cdn.syncfusion.com/ej2/27.1.48/ej2-base/styles/material.css" rel="stylesheet">
<link href="https://cdn.syncfusion.com/ej2/27.1.48/ej2-inputs/styles/material.css" rel="stylesheet">
<link href="https://cdn.syncfusion.com/ej2/27.1.48/ej2-popups/styles/material.css" rel="stylesheet">
<link href="https://cdn.syncfusion.com/ej2/27.1.48/ej2-buttons/styles/material.css" rel="stylesheet">
<script src="https://cdn.syncfusion.com/ej2/27.1.48/dist/ej2.min.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>
<body>
<div id="container" style="width: 90%">
<div id="droparea">
Drop files here to upload
</div>
<div id="uploadfile">
<input type="file" id="fileupload" name="UploadFiles">
</div>
</div>
<script>
var ele = document.getElementById('container');
if(ele) {
ele.style.visibility = "visible";
}
</script>
<script src="index.js" type="text/javascript"></script>
</body></html>
#container {
visibility: hidden;
padding-left: 5%;
width: 100%;
}
#loader {
color: #008cff;
font-family: 'Helvetica Neue','calibiri';
font-size: 14px;
height: 40px;
left: 45%;
position: absolute;
top: 45%;
width: 30%;
}
.fileupload {
margin: 20px auto;
width: 400px;
}
#droparea {
padding: 50px 25px;
margin: 30px auto;
border: 1px solid #c3c3c3;
text-align: center;
width: 20%;
display: inline-flex;
}
.e-file-select,
.e-file-drop {
display: none;
}
body .e-upload-drag-hover {
outline: 2px dashed brown;
}
#uploadfile {
width: 60%;
display: inline-flex;
margin-left: 5%;
}
Configure asynchronous settings
The uploader component process the files to upload in Asynchronous mode by default. Define the properties saveUrl and removeUrl to handle the save and remove action as follows.
// initialize Uploader component
var uploadObject = new ej.inputs.Uploader({
asyncSettings: {
saveUrl: 'https://services.syncfusion.com/js/production/api/FileUploader/Save',
removeUrl: 'https://services.syncfusion.com/js/production/api/FileUploader/Remove'
}
});
// render initialized Uploader
uploadObject.appendTo('#fileupload');
<!DOCTYPE html><html lang="en"><head>
<title>Essential JS 2 Uploader</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description" content="Essential JS 2 Uploader Component">
<meta name="author" content="Syncfusion">
<link href="index.css" rel="stylesheet">
<link href="https://cdn.syncfusion.com/ej2/27.1.48/ej2-base/styles/material.css" rel="stylesheet">
<link href="https://cdn.syncfusion.com/ej2/27.1.48/ej2-inputs/styles/material.css" rel="stylesheet">
<link href="https://cdn.syncfusion.com/ej2/27.1.48/ej2-popups/styles/material.css" rel="stylesheet">
<link href="https://cdn.syncfusion.com/ej2/27.1.48/ej2-buttons/styles/material.css" rel="stylesheet">
<script src="https://cdn.syncfusion.com/ej2/27.1.48/dist/ej2.min.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>
<body>
<div id="container">
<input type="file" id="fileupload" name="UploadFiles">
</div>
<script>
var ele = document.getElementById('container');
if(ele) {
ele.style.visibility = "visible";
}
</script>
<script src="index.js" type="text/javascript"></script>
</body></html>
#container {
visibility: hidden;
margin: 0 auto;
width: 400px;
}
#loader {
color: #008cff;
font-family: 'Helvetica Neue','calibiri';
font-size: 14px;
height: 40px;
left: 45%;
position: absolute;
top: 45%;
width: 30%;
}
Handle success and failed upload
You can handle the success and failure actions using the success and failure events. To handle these event, define the function and assign it to corresponding event as follows.
// initialize Uploader component
var uploadObject = new ej.inputs.Uploader({
asyncSettings: {
saveUrl: 'https://services.syncfusion.com/js/production/api/FileUploader/Save',
removeUrl: 'https://services.syncfusion.com/js/production/api/FileUploader/Remove'
},
success: onUploadSuccess,
failure: onUploadFailure
});
// render initialized Uploader
uploadObject.appendTo('#fileupload');
function onUploadSuccess(args) {
if (args.operation === 'upload') {
console.log('File uploaded successfully');
}
}
function onUploadFailure(args) {
console.log('File failed to upload');
}
<!DOCTYPE html><html lang="en"><head>
<title>Essential JS 2 Uploader</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description" content="Essential JS 2 Uploader Component">
<meta name="author" content="Syncfusion">
<link href="index.css" rel="stylesheet">
<link href="https://cdn.syncfusion.com/ej2/27.1.48/ej2-base/styles/material.css" rel="stylesheet">
<link href="https://cdn.syncfusion.com/ej2/27.1.48/ej2-inputs/styles/material.css" rel="stylesheet">
<link href="https://cdn.syncfusion.com/ej2/27.1.48/ej2-popups/styles/material.css" rel="stylesheet">
<link href="https://cdn.syncfusion.com/ej2/27.1.48/ej2-buttons/styles/material.css" rel="stylesheet">
<script src="https://cdn.syncfusion.com/ej2/27.1.48/dist/ej2.min.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>
<body>
<div id="container">
<input type="file" id="fileupload" name="UploadFiles">
</div>
<script>
var ele = document.getElementById('container');
if(ele) {
ele.style.visibility = "visible";
}
</script>
<script src="index.js" type="text/javascript"></script>
</body></html>
#container {
visibility: hidden;
margin: 0 auto;
width: 400px;
}
#loader {
color: #008cff;
font-family: 'Helvetica Neue','calibiri';
font-size: 14px;
height: 40px;
left: 45%;
position: absolute;
top: 45%;
width: 30%;
}
You can also explore JavaScript File Upload feature tour page for its groundbreaking features. You can also explore our JavaScript File Upload example that shows how to render the file upload and browse the files which you want to upload to the server.