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There are three options
1) Load all subfile - the system handles rolling in either direction
2) Extending subfile - the system handles rolling back while your code
handles rolling forward
3) Page at a Time - your code handles rolling in either direction

HTH,
Charles

On Wed, Feb 17, 2010 at 1:23 PM, Tom Deskevich
<thomas.l.deskevich@xxxxxxxxxxxxx> wrote:
I always thought that unless you were loading the whole subfile in it's load
subroutine, you ALWAYS have to control the roll keys. If you load a page
then drop out of the subfile load subroutine and exfmt on the subfile
control record, and the user presses a roll key, you need to know that event
happened so you can write the next page of the subfile. And the only way I
know is to specify the roll keys in your DDS. You do not have to CLEAR the
subfile on the next load, (as long as your subfile is expandable) but keep
the relative record number accumulating.

The only time that the system controls the roll keys when you specify them
in the DDS is when the subfile has loaded the records and you are viewing
them again.

You can take TOTAL control of the roll keys by making SFLPAG and SLFSIZ the
same. Then the subfile will never expand and you will refresh the subfile
each time in your load subroutine.

As my friend Matthew Kelly would say,  YES or YES?

Tom Deskevich






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