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  2. RPG400-L
  3. September 2010

Re: Chain and Readc

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.

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