Is it possible that you have spaces in the DataField/UniqueName
of some of the columns for which you calculate aggregate values? We have similar report for such case before and the problem should be addressed in the latest release 2008.2.826 of RadControls for ASP.NET AJAX. Please migrate to it (following the steps from this KB article
) and let us know how it goes.
Alternatively, remove the spaces if present to see whether this helps.
the Telerik team
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