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Trigger Click Event of Input File from External Button in JavaScript (ES5) Uploader control

22 Jul 2021 / 1 minute to read

Click event of input file from the external button can be triggered using the click event of button. In the following sample, you can find the triggered click event of input file from Essential JavaScript 2 Button.

Source
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index.js
index.html
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ej.base.enableRipple(true);

//Initialize the control by preload files
var uploadObj = new ej.inputs.Uploader({
    asyncSettings: {
        saveUrl: 'https://ej2.syncfusion.com/services/api/uploadbox/Save',
        removeUrl: 'https://ej2.syncfusion.com/services/api/uploadbox/Remove'
    },
});
uploadObj.appendTo('#fileupload');

document.getElementById('browse').onclick = function() {
    document.getElementsByClassName('e-file-select-wrap')[0].querySelector('button').click();
};
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<!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="//cdn.syncfusion.com/ej2/ej2-base/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/ej2-inputs/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-buttons/styles/material.css" rel="stylesheet">
    
    
<script src="https://cdn.syncfusion.com/ej2/dist/ej2.min.js" type="text/javascript"></script>
</head>
<body>
    
        <div id="container">
            <div class="control_wrapper">
                <!-- Initialize Uploader -->
                <div id="dropArea">
                    <span id="drop"> Drop image (JPG, PNG) files here or <button class="e-btn e-control" id="browse">Browse</button></span>
                </div>
                <input type="file" name="UploadFiles" id="fileupload">
            </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>

You can also explore JavaScript File Upload feature tour page for its groundbreaking features. You can also explore our JavaScript File Upload example to understand how to browse the files which you want to upload to the server.