I'm using ComponentArt MultiPage control in my application. I'm also using AjaxControl Toolkit's ModalPopUpExtender control. I get the javascript error "Sys.UI.DOMEevnt is null or not an object". I noticed that if I have the ScriptManager in the same page as any ComponentArt control, I get this error. Can someone please suggest me a solution? I'm using ComponentArt 2008.2 and latest version of Ajax Toolkit and .NET Framework 3.5. Thanks.
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Most reports of this problem are related to having references to older MS AJAX DLLs. It could also be a bad ComponentArt install. See the thread at the CA forum another thread at the Iron Speed forum for more information.
jball
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