Hello Pablo,
I am sorry to say that this functionality is not available in the control yet. For the time being you can monitor, comment and vote on PITS item
here to raise its importance. If the item gets enough votes and approval from the management you can expect it in the near future.
Kind regards,
Danail Vasilev
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 now.