When a report is Empty?

Question

<p>
Hello,
I would like to know, haw can I detect that a report is empty!
With a report without subreports was OK, I took the "report.Rows.Count > 0", but if the ReportDocument is a Subreport, This property whrows me a NotSupported exception.
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<p>
Please help, I have a peace of code, but i have no idea how to make this recursive function work:
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        private static bool IsEmptyReport(ReportDocument report) <br />
        {<br />
            if (!report.IsSubreport)<br />
            {<br />
                foreach (ReportDocument subreport in report.Subreports)<br />
                {<br />
                    if (!IsEmptyReport(subreport))<br />
                    {<br />
                        return false;<br />
                    }<br />
                }<br />
            }<br />
             <br />
            if (report.Rows.Count == 0) // NotSupported Exception for a SUBreport<br />
            {<br />
                return true;<br />
            }<br />
            else <br />
            {<br />
                return false;<br />
            }<br />
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</p>
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thanks!
</p>

Answer 1

The CrystalReportDataView object instance being returned from a subreport.Rows do not support the Count property for subreports.
On my Crystal Reports 2008 SP0, the NotSupportedException comes with the message "Not supported within subreports."
So this method wouldn't get you what you want.  I'm not aware of alternative methods.
Sincerely,
Ted Ueda