dymanic create, load subreport and access components

rbuser

How can I create a subreport, load a .rtm file to this subreport, assign it
to Detail Band and access some components in subreport, all of it from code?
Is there a sample?

regards,

nicocizik

Hi Fred,

The article below describes how to create a subreport dynamically in code.
After you create a subreport, check out the example below on how to load a
template into an empty subreport on your report. This should get you on the
right track...

http://www.digital-metaphors.com/tips/HeaderUsingSubReport.zip

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TECH TIP: Creating a SubReport in Code
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A subreport is comprised of two objects:

1. SubReport control
The subreport control is added to a band of the
'parent' report. It has properties such as
ShiftRelativeTo, PrintBehavior, etc.
In the Report Designer, the subreport is drawn
as a rectangle.


2. ChildReport
The child report is a descendant of CustomReport and has
most of the same properties as a standard Report.
The child report has a separate layout workspace in the report
designer that is accessible by selecting the tabs at the bottom
of the designer.




When dynamically creating a subreport in code you need to
create the subreport and the underlying child report.
The subreport.Report property can then be used to access
the child report.

This is demonstrated in the following example:




var
lSubReport: TppSubReport;
lReport: TppChildReport;
lLabel: TppLabel;
lDBText: TppDBText;


begin

lSubReport := TppSubReport.Create(Self);

{add to the main report's detail band}
lSubReport.Band := ppReport1.DetailBand;

{create the child report (parameters: main report) }
lSubReport.CreateReport(ppReport1);

lReport := TppChildReport(lSubReport.Report);

{assign a datapipeline}
lReport.DataPipeline := plCustomers;

{create the default set of bands}
lReport.CreateDefaultBands;

lLabel := TppLabel.Create(Self);
lLabel.Band := lReport.TitleBand;
lLabel.Caption := 'Customers';

lLabel.Font.Name := 'Times New Roman';
lLabel.Font.Size := 24;

lDBText := TppDBText.Create(Self);
lDBText.Band := lReport.DetailBand;
lDBText.DataPipeline := plCustomers;
lDBText.DataField := 'CustNo';

lDBText.Color := clYellow;
lDBText.Font.Name := 'Times New Roman';
lDBText.Font.Size := 12;



end;

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