` Window not open error on empty reports (Lee White) - Icetips Article
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ABC: Window not open error on empty reports
1999-04-26 -- Lee White
 
Newsgroups: topspeed.products.c4 > I am having the same problem but I have a generic, plain vanilla report that > only has a report filter. I do not ref the report at any embed point. If no > records are selected (There are no records available to process) the next > window is a run time error, Window is not open, and the application issues > an invalid page fault in C4RUNX.DLL. This will also happen in 16bit mode. > I have posted a message in the C4 bug area plus I sent a sample app to tech > support but have not heard anything in the last 3 or so weeks. Any chance you're using the page numbering control template in your report? It will do this since it wasn't originally "wrapped" to protect against empty reports. As far as I know it's the only standard template that can/will cause this behavior. If you -are- using the ReportPageNumber control template open the abreport.tpw and search for "reportpagenumber". When you find it you need to add a couple of lines... Move down to the #AT containing 'OpenReport' and you'll find... %Report$%Ctrl{PROP:PageNo}=True Change this to... IF ~ReturnValue %Report$%Ctrl{PROP:PageNo}=True END Recompile and the problem should disappear. -- Lee White


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