Print Preview Access Violation in End User report running from Report Explorer

rbuser

Hello,

Working with Delphi 2007, ReportBuilder 14.08 enterprise, IBojects 4..9.14.

I just upgraded my ReportBuilder from 12.03 to 14.08. With version 12.03
everything worked well.

Now, with 14.08, I get access violation errors when doing a preview of
any end-user report in the report explorer.

The reports print successfully to the printer.
I can preview the report when I am in the Report Designer and click on
the preview tab.

But, as stated, after I save the report definition and then choose
report preview from the Report Explorer I get the Access Violation error.

Can you help diagnose the problem or help me understand how to
troubleshoot the problem.

Thanks,
Phil Horst

nicocizik

Hi Phil,

RB 14 introduces a new scrollable page preview, which generates pages in
a background thread. This can cause threading issues in some cases,
particularly if visual controls are connected to the same datasets as
reports. Removing these dependencies or calling DisableControls is an
option to work with the feature.

You can set Report.PreviewFormSettings.SinglePageOnly to True to use the
old single page preview. If you are loading templates from a .rtm files
or a database, use the Report.Template.OnLoadEnd event to set this
property.

If you are using a separate TppViewer object, it has a SinglePageOnly
property.

rbuser

On 3/12/2013 12:20 PM, Nico Cizik (Digital Metaphors) wrote:
I made appropriate adjustments per your description and it resolved the
issue. Thanks!

Phil