Maximum File Count

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.

Maximum File Count

Limit the number of files users can upload using MaxFileCount. Once the limit is reached, additional files are rejected.

What you should see: at most 3 files; selecting a 4th is refused while the first three stay queued.

Maximum 3 Files

Drag & drop files here, or paste from clipboard

<au:AjaxFileUpload ID="Uploader1" runat="server"
 AllowMultiple="true"
 MaxFileCount="3"
 ButtonText="Select Files (max 3)"
 AutoUpload="true"
 ShowProgress="true" />

Try selecting more than 3 files to see the limit enforced.