How to capture a faulty template

rbuser

Hi,

In a classic Report Explorer application, what is the best place to capture
the fact if a template is faulty.
For example if the report template is old and the database has changed.
I want to be able to capture the fact that the template is faulty and notify
the user, without opening the report.

Thanks

Shahine

nardmoseley

Try using the Report.Template.OnLoadEnd event. You could inspect the
template and try to fix anything that you can detect is wrong or raise an
exception.



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

rbuser

Hi Nard Moseley,

Thanks for getting back to me.
OK, I have an event "TRepForm.myTemplateOnLoadEndEvent(Sender: TObject);"
declared.
But how can I see if the template actually loaded or not?

Before I started using the report explorer, I was loading the reports
manually and had something like:

Try
ppReport1.Template.LoadFromDatabase;
except
MessageDlg('Report Template did not load', mtError, [mbOK], 0);
end;

as a simple way of knowing template did not load, therefore something is
wrong with it.
I simply want to know if the template loaded ok or not? and if it did not
then not to go any further.

Thanks

Shahine Ghanbarzadeh

nardmoseley

The report explorer should be doing what you describe automatically. It
should not display the designer if the template does not load successfully.
I researched this further and the TppReportExplorer.LoadReport method has a
try..except that needs to re-raise the exception. We will fix this for the
next maintenance release, which will be RB 10.04. For your existing code,
open ppRptExp.pas, locate the TppReportExplorer.LoadReport and add a raise
statement at the end of the try..except - so that it looks like the example
below. Copy ppRptExp.pas to RBuilder\Lib and delete the corresponding .dcu,
the rebuild your Delphi project to generate a new .dcu.

try

{load report}
except
{receove from exception}
raise;

end;




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

rbuser

Thank You.

Did the trick. Exactly what I was looking for.

Shahine