AjaxUploader.WebForms 5.3.10

AjaxUploader

File upload control for ASP.NET Web Forms (.NET Framework 4.8): multiple files, drag and drop, chunked and resumable transfers, direct-to-cloud, folder uploads, an image pipeline, and 30 locales.

Upgrading from 4.x? Your existing code keeps working — see Upgrading.

Install

Install-Package AjaxUploader.WebForms

Then register the handler in web.config:

<system.webServer>
  <handlers>
    <add name="AjaxUploader" path="ajaxupload.axd" verb="*"
         type="AjaxUploader.AjaxUploaderHandler, AjaxUploader"
         preCondition="integratedMode" />
  </handlers>
</system.webServer>

Basic use

<%@ Register Assembly="AjaxUploader" Namespace="AjaxUploader.Controls" TagPrefix="au" %>

<au:AjaxFileUpload runat="server" ID="Uploader1"
                   MultipleFiles="true"
                   OnFileUploaded="Uploader1_FileUploaded" />

protected void Uploader1_FileUploaded(object sender, FileUploadedEventArgs e)
{
    // Uploads are TEMPORARY until you save them.
    e.CopyTo(Server.MapPath("~/uploads/") + e.FileName);
}

FileUploaded fires on the postback, not during the transfer. The control posts back automatically when the batch finishes; if you disable AutoPostBack, nothing happens until the page posts back some other way.

What you get

Saving uploaded files

Uploads land in a temp store first. Nothing is persisted until your handler copies or moves it:

e.CopyTo(path);   // keep the temp copy
e.MoveTo(path);   // move it
using (var s = e.OpenStream()) { /* stream it to a DB or a bucket */ }

Upgrading from 4.x

The v4 CuteWebUI API is fully intact — all 384 public members of the published 4.0.2.7 surface resolve on v5, so existing pages compile and run unchanged:

<%@ Register Namespace="CuteWebUI" Assembly="CuteWebUI.AjaxUploader" TagPrefix="CuteWebUI" %>
<CuteWebUI:Uploader runat="server" OnFileUploaded="Uploader_FileUploaded" />

The assembly version stays 5.0.0.0, so existing bindings and web.config entries keep working — the upgrade is a DLL swap. Confirm the build you are running via AjaxUploader.dll → Properties → Details → File version.

Licensing

This package installs a trial build. Localhost evaluation is unrestricted; production deployment requires a licence.

• Docs and demos: https://ajaxuploader.com
• Purchase: https://ajaxuploader.com/Order.aspx
• Support: https://ajaxuploader.com/Contact.aspx