Another Rendering Speed Question

[Neil N]

I have a requirement to produce reports for archival purposes that can consist of 50K-60K rows.  WPF client app code snippet is:

                tblDetail.NeedDataSource += (s, e) =>
                {
                    var t = (Table)s;
                    t.DataSource = visibleRows;
                };

                var reportProcessor = new ReportProcessor();
                RenderingResult? result = reportProcessor.RenderReport("PDF", report, null);

RenderReport performance is abysmal for even a simple report - 11 columns, 1 grand total row (so far), no pagecount (but it will be needed). Can I do anything to dramatically improve performance or should I look for an alternative to Telerik Reporting?

[Neil N]

Answering my own question: Was playing around with report cosmetics and it seems that removing borders dramatically speeds up rendering.

[Todor]

Hi Neil,

Thank you for sharing your scenario and the fix.

We would like to investigate the reason for the borders slowing down your performance significantly. Can you send us a runnable report with borders set, and tell us which borders to remove to replicate the problem/fix?

How do you set the borders? If you use Bindings, this may explain partially the slowdown, as the Bindings work with reflection.

Alternatively, the borders may introduce additional pixels, resulting in horizontal page breaks. This would be visible in the PDF, though. Can you confirm this is not the case?

Regards,
Todor
Progress Telerik