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Problem with unexpected empty pages. Please help.

rbuserrbuser
edited July 2011 in General
Hello,

I have a problem, which is not easy to explain. I hope, you can understand
it.

First the enviroment: Delphi 7 Ent, RB 12.04 Ent., MS SQL-Server 2008 and HP
Laser Jet P4010/P510 printer.

On a report I have in summaey band some TppRegions. Every region contains 1
TppDBMemo. And every region is ShiftReativeTo the region above it. Because
of different conditions some regions are visible and some not.

So everything is fine until the page break is in the summary band. Than it
can happen, that RB shows an empty page. For example I expect a Report with
2 pages, but the printer print 3 pages.

Page 1 is correct -> it shows "Page 1 / 2"
Page 2 is empty -> it shows "Page 2 / 2"
Page 3 is correct -> it shows "Page 3 / 2"

Normally everything is okay and this behavior is extremly rare, but if it
happens, i can reproduce this.

In the last hours I tried a lot of things to find an error in my report. But
now I'm at the end of my ideas.

Please help. I hope, there is a reason for this. Any ideas for debugging are
welcome.

Thanks in advance and kind regards,
Gerd Brinkmann
invent GmbH

Comments

  • nicociziknicocizik
    edited July 2011
    Hi Gerd,

    We have not seen this behavior before however it may be an issue with
    the pagination logic. If possible, please send a simple example in .zip
    format to support@digital-metaphors.com that demonstrates the problem
    and we will research it for you.

    Best Regards,

    Nico Cizik
    Digital Metaphors
    http://www.digital-metaphors.com
  • nardmoseleynardmoseley
    edited July 2011
    Only the visible Regions can participate in a ShiftRelativeTo chain. If you
    set some to be not visible, then redefine the ShiftRelativeTo relationships
    to include only the visible Regions.


    -
    Nard Moseley
    Digital Metaphors
    www.digital-metaphors.com

    Best regards,

    Nard Moseley
    Digital Metaphors
    www.digital-metaphors.com
  • rbuserrbuser
    edited July 2011
    Hello Nard,

    thanks for your answer. I will try out your notice tomorrow.

    But I think this is fundamental problem in my reports. I thougth, it is a
    good idea to place some regions on a report in summary band, for example:

    Region1
    Region2
    ...
    Region10

    and every region is ShiftrealtiveTo the region direct above.

    In SummaryBeforePrint I set Region.Visible to true or false depending on
    whether the content is empty.

    Maybe that is not a good idea. Is there a better way to make this?

    Thanks again and kind regards,
    Gerd Brinkmann
    invent GmbH


  • rbuserrbuser
    edited August 2011
    Hello Nard,

    I changed my reports and now most of the regions are always visible. And I
    installed your patch for "ppRegion.KeepTogether".

    Now I have no more problems with unexpected empty pages.

    Thanks for your support.

    King regards,
    Gerd Brinkmann
    invent GmbH


This discussion has been closed.