Add confirm dialog to remove the files in EJ2 JavaScript Uploader control

15 May 20234 minutes to read

You can customize the uploader component using confirm dialog before removing the files. Here, ej2 dialog is used as confirm dialog. Refer to the following example.

index.js
index.html
styles.css
var removeFile = [];
// 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'
    },
    removing: onremove
});

// render initialized Uploader
uploadObject.appendTo('#fileupload');


function onremove(args) {
  args.cancel = true;
  removeFile.push(args.filesData);
  dialog.show();
}

// Initialize Dialog component
var dialog = new ej.popups.Dialog({
    content: 'Confirm to remove the file?',
    buttons: [{'click': () => { onClick() }, buttonModel: { content: 'OK', cssClass: 'e-flat'}},
        {'click': () => {dialog.hide(); }, buttonModel: { content: 'Cancel', cssClass: 'e-flat'} }],
    width: '250px',
    visible: false,
    target: '#container'
});
dialog.appendTo('#dialog');

function onClick() {
  dialog.hide();
  uploadObject.remove(removeFile[0], false, true);
  removeFile=[];
}
<!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/ej2/28.1.33/ej2-base/styles/material.css" rel="stylesheet">
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-inputs/styles/material.css" rel="stylesheet">
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-popups/styles/material.css" rel="stylesheet">
    <link href="https://cdn.syncfusion.com/ej2/28.1.33/ej2-buttons/styles/material.css" rel="stylesheet">
    
    
<script src="https://cdn.syncfusion.com/ej2/28.1.33/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 id="dialog"></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>
html,
body,    
#container {
    height: 100%;
    overflow: hidden;
    margin: auto 30px;
    padding: 20px 0;
}

#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.