You can sort the selected files in uploader component by using the selected event. Refer to the following example.
import { Uploader, FileInfo, SelectedEventArgs } from '@syncfusion/ej2-inputs';
import { Event } from '@syncfusion/ej2-base';
let initial: boolean = true;
let uploadObj: Uploader = new Uploader({
asyncSettings: {
saveUrl: 'https://ej2.syncfusion.com/services/api/uploadbox/Save',
removeUrl: 'https://ej2.syncfusion.com/services/api/uploadbox/Remove'
},
selected: onSelect
});
uploadObj.appendTo('#fileupload')
function onSelect(args: SelectedEventArgs): void {
if (initial) { initial = false; return; }
args.isModified = true;
let oldFiles: FileInfo[] = uploadObj.getFilesData();
let filesData: FileInfo[] = args.filesData.concat(oldFiles);
let modifiedData: FileInfo[] = sortFileList(filesData);
args.modifiedFilesData = modifiedData;
}
function sortFileList(filesData: FileInfo[]): FileInfo[] {
let files: FileInfo[] = filesData;
let fileNames: string[] = [];
for (let i: number = 0; i < files.length; i++) {
fileNames.push(files[i].name);
}
let sortedFileNames: string[] = fileNames.sort();
let sortedFilesData: FileInfo[] = [];
let index: number = 0;
for (let name of sortedFileNames) {
for (let i: number = 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/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://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'>
<input type="file" id="fileupload" name="UploadFiles"/>
</div>
</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%;
}