tracing through code after printing

rbuser

Dear all,
I am working through the LabelsSkipPlusQuantity code suggested by
Nard, and there are severe problems, but when I try to trace through the
code, once I hit the print button, the debug seems to be switched off, so I
cannot see what is happening with the ppReport3StartPage,
ppDetailBand3BeforePrint, etc.
What do I need to do so I can trace through this?

thanks

John

nicocizik

Hi John,

ReportBuilder does not have anything built-in that will affect your ability
to debug code.

1. Be sure your library path is pointing toward the \RBuilder\Source\...
directory.
2. Be sure your project debug options in Delphi are properly set.

--
Regards,

Nico Cizik
Digital Metaphors
http://www.digital-metaphors.com

rbuser

Dear Nico,
thanks for the fast reply.
This is driving me nuts. The F7 Trace Into works fine until I get to the
line which brings up the print preview.
Opening the print dialog and then printing kills of the trace through. Any
break points are ignored.

Adding the rbuilder/source or lib directories to various library lists
merely means that I step through every line of ppReport, ppDBpipe, which I
don't really want.

I never have a problem with F7 anywhere else, it must be something really
stupid!!??

regards

John

rbuser

Dear Nico,
I may have an answer, and another question.

I am using LoadfromDatabase to automatically select a template
from a user defined list of report labels.

I am using code to track the exact number of labels to print per page using
the example from LabelsSkipPlusQuantity.zip.

My component is called ppReport3.
I use the line ppreport3.Template.LoadFromDatabase; and it loads the correct
template.

If I then want to use code in the report onstartpage event I was using
ppReport3StartPage etc. I guess that my loadfromdatabase meant that the
loaded report has a different name, and its detailband also has a different
name.

Would this be the reason my code was not getting executed?

How would I access the component names of the loaded report and
reportdetailband?

regards

john

nicocizik

Hi John,

If you are loading templates, you are most likely loosing your event handler
references. The most graceful way around this problem is to keep all your
event code local to the template using RAP. Otherwise you will need to be
sure the template is saved with the same event names as the events in Delphi
or assign the events after the template has loaded.

--------------------------------------------
Article: Troubleshooting Lost Event Handlers
--------------------------------------------

Let's assume you have created a report in Delphi and assign an event
handlers to the OnPreviewFormCreate event of the report. The event is
generated by Delphi as:

procedure TForm1.ppReport1PreviewFormCreate(Sender: TObject);

You then save the report to an RTM file 'Report1.RTM.' The events are
stored as references only, and so the RTM contains:

object ppReport1: TppReport
.
.
OnPreviewFormCreate = ppReport1PreviewFormCreate
end

You then go on to work on a different report. Saving it with under then
name 'Report2.RTM'. Only this time, before you save the report you
change the report component name to: rptOrders. Delphi automatically
updates the event declaration for OnPreviewFormCreate event to:

procedure TForm1.rptOrdersPreviewFormCreate(Sender: TObject);


You then create two buttons on the form, one to load Report1 and
preview, the other to load Report2 and preview. When you run the app
and click Report1, you an error. This is because the Report1.RTM file
contains a reference to ppReport1PreviewFormCreate, a method which no
longer exists (at least with this name) in the form.

One answer is to load all your rtm files into the report component you
will be using for loading. Fix any errors, reassign any events that get
cleared. This will update your rtms to contain the proper event handler
names.


--
Regards,

Nico Cizik
Digital Metaphors
http://www.digital-metaphors.com