Re: Chain and Readc

[Scott Klement <rpg400-l@xxxxxxxxxxxxxxxx>]

Hi Paul,

> Hate to disagree, but you should not need to display the subfile for the
> subsequent READC to work.

Hmmm...  I must admit, it's been a few years since I've done any serious 
subfile programming...   but I definitely remember that if you set 
SFLNXTCHG, then immediately try running READC (without displaying the 
subfile in between) it wouldn't work.

> The technique I have always used with "load all subfiles" is to perform
> a validation pass over a subfile (using a READC loop) and update each
> subfile record with SFLNXTCHG set. If any record is invalid, the subfile
> is re-displayed. Otherwise, another READC loop is performed - without
> any interim reference to the subfile control record.

Hmmm... I've never tried doing READC followed by another READC.  I've 
only done CHAIN followed by READC.