RE: Single Page Subfile Example -- RPG400-L

My understanding is that a single page subfile is just that  -  a single
page.  Every page-up and page down builds a new subfile.  In that case you'd
have no choice but to process the READC lines with every exfmt, unless the
key is a CAnn key.  Any other choice will give unexpected results as you've
discovered. 
 
I am curious  -  wht was the behavior of the program when you inherited it? 
Did it allow more than one page of options to be remembered?  
 
 
---------------------------------------------------------
Booth Martin   http://www.MartinVT.com
Booth@xxxxxxxxxxxx
---------------------------------------------------------
 
-------Original Message-------
 
From: RPG programming on the AS400 / iSeries
Date: Monday, July 14, 2003 5:30:41 AM
To: rpg400-l@xxxxxxxxxxxx
Subject: RE: Single Page Subfile Example
 
Hello Booth,
 
Thanks for the pointer.Regarding the function keys , what i was trying
to find out is , if i display a screen with a page of records
and say the user presses option 4 for deletion in 3 records and then
presses page down with out hitting enter.In that case , i have to
clear the existing records(Since it is a single Page subfile) and build the
next set of records.Now at this instance , if the 
user presses page up , then the existing records are again cleared and
the old set up records will be displayed.But , i would have
lost the option 4 , that the user would have entered in 3 records.
 
Any work around/sample for that?
 
Thanks and regards
Chandra Sekhar
 
> ----------------------------------------------------------------------
> 
> message: 1
> date: Sun, 13 Jul 2003 08:44:39 -0500 (Central Daylight Time)
> from: "Booth Martin" <Booth@xxxxxxxxxxxx>
> subject: Re: Single Page Subfile Example
> 
> At the time that code was written there probably was not a Select/EndSl
> Opcode. I've found the best use of programming time in those design
> situations is to consider changing the code to Select and to change the
> GOTO
> sections to sub routines. A user can not choose two function keys at the
> same time so there should be no conflicts with logic.
> 
> 
> 
> ---------------------------------------------------------
> Booth Martin http://www.MartinVT.com
> Booth@xxxxxxxxxxxx
> ---------------------------------------------------------
> 
> -------Original Message-------
> 
> From: RPG programming on the AS400 / iSeries
> Date: Thursday, July 10, 2003 07:30:13
> To: RPG400-L@xxxxxxxxxxxx
> Subject: Single Page Subfile Example
> 
> Hi Group,
> 
> Please let me know if there are any sample codes for wrtitng a typical
> maintainance single page subfile example in RPG IV.I understand that to
> keep
> the options , that user has selected on the screen, arrays have to be used
> for storing.So that when Page down has been pressed, and again page up is
> done i donot lose the options that the users have entered .Any example on
> how this 
> has to be done?
> 
> I have been maintaining some old codes of Load all and Expanding
> maintainance sub files.But they are not very structured in the sense that
> they use a lot of Go to statements to handle various events after
> different
> screens are presented..Is it possible to have a single EXFMT in the code
> and
> also a single set of subroutines for handling 'keys pressed' events
> instead
> of multiple EXFMTs and same set of 'keys pressed ' subroutine copied again
> &
> again?
> 
> Please point me toward good structured RPGIV code samples
> 
> 
> Thanks and regards
> Chandra Sekhar Rath