I'm having trouble with the RadListBox on selected index changed. OnSelectedIndexChanged does not fire an event at all and OnClientSelectedIndexChanged gives a JS error.
I'm using the RadListBoxes to move items around as described in http://demos.telerik.com/aspnet-ajax/listbox/examples/overview/defaultcs.aspx#qsf-demo-source
But I also need to display information about the single selected item so the user knows if this is the right item to move. But I'm getting a Error: 'AllGroupsRadListBox_SelectedIndexChanged' is undefined.