Preview and the RegenerateReport procedure

rbuser

I have a radio box in my print preview with the option for landscape or
portrait. In the OnClick event is the following code...


if RadioGroup1.ItemIndex = 0 then
begin
ppViewer1.Report.PrinterSetup.Orientation := poLandscape;
ppViewer1.RegenerateReport;
end
else
begin
ppViewer1.Report.PrinterSetup.Orientation := poPortrait;
ppViewer1.RegenerateReport;
end;


In the BeforePrint of my report I have code which sets the field locations
based on whether the report is portrait or landscape, however, the
BeforePrint is not executed when a RegenerateReport is performed. Where is
the best/proper place to put such code in the report to ensure it is
executed when the report is regenerated.

Thanks,
Mark Greenhaw
One Domain, Inc.
xmark@onedomain.comx
(Remove the "x" before and after to email me)

digitalmetaphors

Hi Mark,

RegenerateReport is not going to cut it. It simply resets the device and
publisher and starts making more page requests. The engine is not reset and
the PrintToDevice call on the producer (report) is not called. Here is an
example that works by using a custom preview plugin to change the
orientation. Notice the BeforePrint event of the main report cahnges the
shape width based on its orientation:

Created with RB 7.03 and D6:
http://www.digital-metaphors.com/tips/ToggleOrientationPlugin.zip


Cheers,

Jim Bennett
Digital Metaphors

rbuser

Thanks Jim,

I had put the code in the ppHeaderBand1BeforeGenerate and everything seemed
to be working great until I switched to Portrait from Landscape and then
started moving through the pages. There should have been more pages than the
Lanscape and it went into a loop. I'll look at the code and see if I can
implement it in our custom previewer.

Thanks again,
Mark Greenhaw
One Domain, Inc.
xmark@onedomain.comx
(Remove the "x" before and after to email me)

digitalmetaphors

Hi Mark,

If the report is reset (page cache cleared), the devices are reset, and the
engine is reset and the layout changes, then the next time
Report.PrintToDevices is called it should generate and calculate the correct
pagination for the new layout to the screen device. You'll have to change
the layout before the report starts printing. Try using the
Report.BeforePrint event instead of the Header BeforeGenerate event.


Cheers,

Jim Bennett
Digital Metaphors