Hello.
Some of our customers utilize Crystal reports, which have a string parameter with a very long list of possible values (about 20000 strings with descriptions).
For such reports it takes about 2-3 minutes before "Enter Parameter Values" dialog is displayed for the first time and every time when refresh button is pressed on the Crystal report viewer toolbar. During this time application eats 100% CPU of one of processor cores. Crystal progress dialog is frozen most of this time. This behavior can be observed for both WPF and WinForms Crystal report viewer.
Is it a bug in Crystal Report viewer? Is there any way to reduce this time?
Thanks in advance,
Gleb.
P.S.
We are using the latest Crystal Reports for Visual Studio (SP5). This issue can be reproduced using an empty report with the single parameter defined (with a list of possible values of ~20000 entries) under project auto-generated on the base of "Crystal Reports WPF Application"/"Crystal Reports WPF Application" template in MSVS 2010/2012. It looks like such reports works fine in some old (not the latest) Crystal Reports RDC engine.