Sort the Selected Files in JavaScript (ES5) Uploader control

18 May 2022 / 2 minutes to read

You can sort the selected files in uploader component by using the selected event. Refer to the following example.

Source

Preview

index.js

index.html

index.css

// initialize Uploader component
var uploadObject = new ej.inputs.Uploader({
    asyncSettings: {
        saveUrl: 'https://ej2.syncfusion.com/services/api/uploadbox/Save',
        removeUrl: 'https://ej2.syncfusion.com/services/api/uploadbox/Remove'
    },
    selected: onSelect
});

uploadObject.appendTo('#fileupload');

function onSelect(args) {    
    if (initial) { initial = false; return; }
    args.isModified = true;
    var oldFiles = uploadObj.getFilesData();
    var filesData = args.filesData.concat(oldFiles);
    var modifiedData = sortFileList(filesData);
    args.modifiedFilesData = modifiedData;
}

function sortFileList(filesData) {
    var files = filesData;
    var fileNames = [];
    for (var i = 0; i < files.length; i++) {
        fileNames.push(files[i].name);
    }
    var sortedFileNames = fileNames.sort();
    var sortedFilesData = [];
    var index = 0;
    for (var i = 0; i < sortedFileNames.length; i++) {
        var name = sortedFileNames[i];
        for (let i = 0; i < files.length; i++) {
            if (name === files[i].name) {
                sortedFilesData.push(files[i]);
            }
        }
    }
    return sortedFilesData;
}

<!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/ej2/20.1.55/ej2-base/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/20.1.55/ej2-inputs/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/20.1.55/ej2-popups/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/20.1.55/ej2-buttons/styles/material.css" rel="stylesheet">
    
    
<script src="https://cdn.syncfusion.com/ej2/20.1.55/dist/ej2.min.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: 300px;
}

#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 to understand how to browse the files which you want to upload to the server.