I have never seen direct answer for this - is Microsoft AJAX (scriptmanager, updatepanel, AJAX control kit, etc) supported in sandboxed solution?
If I simply add UpdatePanel into a sandboxed visual web part I get an error saying that script manager is missing. I can add script manager to the control list from code-behind and runtime error goes away, but page does full postback.
Is it supposed to work or not?
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