Report in run time

rbuser

Hi,

I want to create a report in run time and load the layout from a .rtm file.
How can I link the reports's fields to JITPipeline's field?

Thanks
Marina

=====
var
JITPipeline: TppJITPipeline;
Report: TppReport;

begin
JITPipeline := TppJITPipeline.Create(Self);
Report := TppReport.Create(Self);

with JITPipeline do
begin
InitialIndex := 0;
DefineField('name', dtString, 25);
OnGetFieldValue := GetFieldValue; // function already defined
RecordCount := 10;
end;

with Report do
begin
DataPipeline := JITPipeline;
DeviceType := dtScreen;

Template.FileName := 'c:\temp\file03.rtm'; // There is a TppDBText
object named ppTexto
Template.LoadFromFile;

// I tried to link the fields here, but a Stack overflow error
occurred...
TppDBText(Report.Template.Root.FindComponent('ppTexto')).DataPipeline :=
JITPipeline;
TppDBText(Report.Template.Root.FindComponent('ppTexto')).DataField :=
'name';
end;

Report.Print;
end;

digitalmetaphors

The data aware controls use the ParentDataPipeline property to determine
where to connect to the data. If the data pipeline that the template was
saved with matches the one that exists where the template is loaded, then it
will use that pipeline to try and find the field name. If the field name
matches, then the data aware control should automatically hook itself up to
the pipeline and datafield. If the datapipeline name and field name don't
match, then the data aware control can't resolve the place where it should
get its data. You'll have to manually reconnect it at that point. The
solution is to save the template down with the data aware controls
configured for the datapipeline name and field names that will be used when
the report is loaded at runtime.


Cheers,

Jim Bennett
Digital Metaphors