Is it possible to use Form-Inheritance for RB-Forms

rbuser

Hi,

now I've some month of experience with RB creating new reports in new parts
of my projects.

Now the time is come to substitute old QR-Reports
i.e. to implement the taFullJustified-feature for generated letters.

But I'd like to use the same technique:
I've to generate several kinds of letters to our customers.
(1)
In a basic TForm (TfoqrBasis) I'd placed a TQuickRep-component and realised
some basic print features.
(2)
In a derived TForm-class (using TForm-inhertance-feature of Delphi) I've
made the basic letter features (address-field, date-field etc.)
TfoqrBasis --> TfoqrBasicLetter
(3)
From TfoqrBasicLetter I've derived department-specific TForms
TfoqrBasicLetter --> TfoqrDepartmetXYZ_Letter
(4)
From TfoqrDepartmetXYZ_Letter I've created the printable letter-Forms for
the required purposes.

In this way I benefit from all advantages of class inheritance. Every
improvement in parent-class are immediately realised in the childs.

In looking at the RB-generated forms I've some doubts to copy this tactic
for RB.

My two questions:
1. is this way possible in RB
2. if not, what is the recommended way.



--
Best regards
Dietmar Brueckmann

nardmoseley

You can use form inheritance with some limitation:

1. Do not place the DataPipeline components on an ancestor. Due to the
DataPipeline.AutoCreateFields feature, form inheritance does not work.

2. Do not use report templates (i.e. .rtm files or database templates)