Load templates Files

rbuser

I'm writting an application thtat allow user to select RB files (.rtm) and
then preview or printing the report. Here is the code I have use to do this:

if OpenDialog.execute then
try
ppReport1.Template.FileName = OpenDialog.FileName;
ppReport1.LoadFromTemplate;
ppReport1.Print;
except
ON ...
end;

The program compile well, I run the program, no runtime errors are raised
but the result is a blank page.

What I'm doing wrong ?

[]s,

JR

nicocizik

Hi JR,

The code below seems to be fine. Be sure the OpenDialog.FileName is
providing the entire path to the Template.FileName property. Also be sure
the template you are loading is actually a finished report. As a test,
create a simple application consisting of a form with an empty report and a
button. Inside the button's OnClick event, hard code the report path and
file name to be sure it works correctly.

procedure TForm1.Button1Click(Sender: TObject);
begin
ppReport1.Template.FileName := 'C:\Test.rtm';
ppReport1.Template.LoadFromFile;

ppReport1.Print;
end;

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rbuser

Nico,

I think I found the nature of the problem. I don't know why but after
calling the LoadFromFIle, the DataPipeline property is cleared from the
report. All I have to do is set the Datapipeline again and everything works
fine.

nicocizik

Hi Junior,

ReportBuilder will automatically loop through all components on the main
form or a datamodule for the proper datapipelines. If by chance you are
creating a datapipeline in code with no owner or an owner that ReportBuilder
cannot search, then you will not see the datapipeline when running the
report, unless you set the pipeline again manually as you have already done.


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