Have you tried AsyncUpload mode
of RadFileExplorer? You can enable this feature by setting EnableAsyncUpload
property to true
With this configuration, RadFileExplorer will use RadAsyncUpload to provide the upload functionality and RadAsyncUpload have built-in progress bar.
the Telerik team
If you want to get updates on new releases, tips and tricks and sneak peeks at our product labs directly from the developers working on the RadControls for ASP.NET AJAX, subscribe to their blog feed