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Learn moreHow Do I: Customize Error Handling for the ASP.NET AJAX UpdatePanel
by Rob Windsor
When an error occurs during the processing of a postback triggered by an ASP.NET AJAX UpdatePanel, the client-side PageRequestManager will show an alert (.NET 2.0 or 3.0) or just re-throw the exception (.NET 3.5 or later). In either case, the experience for the end user is less that optimal. In this video, Rob Windsor will demonstrate how to address this issue by customizing the handling of errors associated with the UpdatePanel