We have multiple RadComboBoxes within a Microsoft AJAX UpdatePanel that lies within another Microsoft AJAX UpdatePanel.
Only with this configuration, we are seeing some javascript exceptions.
I’ve attached a screenshot of the exact exception and a clip of the stack trace.
This only occurs when one of the RadComboBoxes has their selected index changed and that causes a PostBack.
Also, this only seems to occur in IE10.
Can you possibly help shed some light on what may be the problem here? We are using Telerik version 2013.1.417.40.