got 1 radiobuttonlist and only one list item inserted manually (like default choice, and of course i need it to be selected on page load) and the other items are loaded from a sequel database source, that defines some options for filtering my gridview.

Ajaxmanager takes the radiobuttonlist actions for notify grid to be updated.

BUT …. as you said … the adding of attribut SELECTED=”true” on my default listitem makes it unable to fire the indexchanged event.

without ajax it works.

your js script doesn’t help my case.