AjaxToolkit with RadGrid

[Osmon]

Hi,
       I am trying to use the AjaxToolkit control (ToggleButtonExtender) inside the GridTemplateColumn   but its giving me error :

Generation of designer file failed: Type 'Telerik.Web.UI.GridTemplateColumn' does not have a public property named 'ToggleButtonExtender'. 

Let me know, how i can do that. Thanks,

Regards,

Osman

found answer, i wasn't using the itemtemplate. Thanks