10.08 Report Preview

rbuser

We're using Reportbuilder Enterprise Edition, 10.07, with Delphi 2007.

I'm just testing 10.08 and it appears that OnSaveStart is triggered when a
new report is previewed. I am certain that this never happened in 10.07.
We are storing our reports in a DB.

I'm still trying to sort out the exact timing of this problem. Has anyone
experienced this problem?

Leah

nicocizik

Hi Leah,

Are you able to see this with a simple example? In my quick testing
(report, designer, button on a form) I was unable to get the
Template.OnSaveStart event to fire unless I saved the template to file/DB.

--
Regards,

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

rbuser

Hi Nico,

Okay, I've figured out the problem -- it's in SaveReportToStream in
ppDesignPreview.pas (called during Preview):

10.08:
------------
// if RAP not being used, exit
if (lModuleClass = nil) then Exit;

// if Delphi design-time and report does not contain RAP code, exit
if gbDesignTime and (FReport.GetModuleForClass(lModuleClass) = nil) then
Exit;
------------

10.07:
------------
if (lModuleClass = nil) or (FReport.GetModuleForClass(lModuleClass) = nil)
then Exit;
------------

So in 10.07, this is true "FReport.GetModuleForClass(lModuleClass) = nil" so
I'm not prompted to Save.

In 10.08, it's not gbDesignTime, so I AM prompted to Save.

I'm not sure why this change was made? Am I correct here? Maybe it should
be Design Time "OR" the report has no RAP?

Leah

nardmoseley

The change was made because customers complained the behavior was not
consistent. When using the end-user designer, some reports were
save/restored when selecting/deselecting Preview while other reports were
not. When a report is previewed, event-handler code may fire that modifies
the report, therefore a save/restore to an internal stream is performed.


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

rbuser

So you can no longer preview a report that hasn't been saved?

Leah

nardmoseley

It is saved to an internal memory stream.

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

rbuser

I am checking for duplicate report titles OnSaveStart, so my dialog is
triggered on the preview. I guess I'll have to change this.

nardmoseley

Tryy adding a check to your OnSaveStart event-handler code.

uses
ppTypes, ppComm;


if (pppcDesignPreviewing in Report.DesignState) then
// report is previewing




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

rbuser

Thanks. Worked a charm.

Leah