From the information provided it seems that both a RadAjaxPanel and a RadAjaxManager are being used. Could you ensure that the ListView is not updated by both of the controls? This is a potentially problematic scenario as nested update panels will create. We recommend the use of only one of the mentioned controls for ajaxification(more information on this subject can be found here
). If that is not the case I would like to ask you to show us the code of the problematic page so we could investigate further what is causing the problem.
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