Smartform: windows in different pages having the same name

Question

Hi all gurus,
first of all, please forgive me if I'm missing something, I'm quite new on the Smartform argument.
Shortly; I have to modify some smartforms made by someone else in order to meet customer's desiderata.
These smartforms are all different but share a common "structure", which is:
2 pages definition, P_FIRST and P_FOLLOW, which have actually the same internal "structure": they have a LOGO window, then a TITLE window, then a MAIN window, then a FOOTER, and so on.
In order to do my task, I added a new window in both P_FIRST and P_FOLLOW, let's call it CERTIFICATION_LOGO.
Moreover, I inserted a new graphic element under the LOGO window.
Modifying the smartforms, I noticed I have two different kind of behaviour:
1) in almost all these SF, I add a window called CERTIFICATION_LOGO in P_FIRST, then I have to add a windows to P_FOLLOW which cannot have the same name ( e.g. I called it CERTIFICATION_LOGO_FOLLOW);
2) in just one SF, when I add a window P_FIRST, then the exactly same window is added to P_FOLLOW. When I modify CERTIFICATION_LOGO window in P_FIRST, also CERTIFICATION_LOGO in P_FOLLOW is updated.
I can't find a reason why such different behaviour. Actually I'm testing my solution and found that the only smartform that does not work is the only one which I have described with 2). So my guess is that there's some setting anywhere which leads to that different behaviour and this could be a cause of a raised exception... but maybe it's just a case, also because I found in debug that in this standard call in the form PROCESS_TEXT_WINDOW:
perform xsf_window_open using docentry-tdwindow
                                docentry-tdwtype.
where docentry-tdwindow = 'LOGO' and tdwtype = 'T', the system exit the process at the first execution of:
check xsfop-xsf = c_true.
  check not xsf_obj is initial.
What does xsfop-xsf should mean? In my case xsfop-xsf = false and xsf_obj is initial... then the SF is not generated.
What am I missing gurus?
Thanks in advance,
Matteo
Edited by: Matteo Montalto on Aug 26, 2011 4:49 PM

Answer 1

When you have common windows (LOGO on page first and logo on page next, etc.) you actually have one window definition.  What you put in the window is therefore always displayed for all pages.  In your case, instead of creating your new window and copying it into the follow page, you have two different windows, which now must be separately maintained, as to content, placement, borders, shading, conditions, etc.