Cancel Upload

Demo uploads land in a temporary store and are swept after 60 minutes. To keep files, handle FileUploaded — see Single File for the complete save pattern.

Cancel Individual or All Uploads

Cancel a specific file upload or cancel all queued uploads at once. Cancelled uploads are removed from the queue and any partial data on the server is cleaned up.

What you should see: cancel an in-flight upload and the request aborts immediately; the queue reflects the cancelled state rather than hanging.

Drag & drop files here, or paste from clipboard

<au:AjaxFileUpload ID="Uploader1" runat="server"
 AllowMultiple="true"
 AutoUpload="true"
 ShowProgress="true" />

// JavaScript API
var uploader = AjaxUploader.getInstance('Uploader1');

// Cancel one: uploader.cancelTask(taskId);
// Cancel all: uploader.cancelAll();