Re: CHANGE keyword on Subfiles

["Simon Coulter" <shc@xxxxxxxxxxxxxxxxx>]

Hello Don,

What are you trying to accomplish?  Are you trying to determine if ANYTHING in 
the subfile record format 
changed or WHICH subfile record has changed?

Fetching only the changed subfile record is accomplished by a READC RPG 
operation (or READ SUBFILE NEXT 
MODIFIED in COBOL).  If you are performing validation and redisplaying 
incorrect values to the user you need to 
update the subfile record with SFLNXTCHG conditioned on otherwise you won't get 
the data unless the user 
actually corrects it.

The response indicator associated with the CHANGE keyword should be turned on 
by the system if the user types 
something into one of the fields.  If the user does not type anything (even if 
your program changed the data, 
or it was previously changed by the user) the CHANGE indicator will not be 
turned on.

If the user is entering data into the field or record format with CHANGE and 
change is not turned on then that 
is a bug.

By the way, using CHANGE on a subfile record is an unusual processing technique.

Regards,
Simon Coulter.

//----------------------------------------------------------
// FlyByNight Software         AS/400 Technical Specialists
// Phone: +61 3 9419 0175      Mobile: +61 0411 091 400
// Fax:   +61 3 9419 0175      E-mail: shc@flybynight.com.au
// 
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//--- forwarded letter -------------------------------------------------------
> Date: Wed, 03 Jun 98 06:06:15 -0400
> From: "Don Schenck" <schencd%AM_LZCH%VASELL@mr.mops.wl.com>
> To: MIDRANGE-L@midrange.com
> Reply-To: MIDRANGE-L@midrange.com
> Subject: CHANGE keyword on Subfiles
> Sensitivity: Company-Confidential
> Importance: normal

> 
> I have a problem using the CHANGE keyword on my subfile.
> 
> I have CHANGE(56) in the DDS, but indicator 56 is only getting set ON after 
>the
> FIRST change to the subfile. Subsequent changes are NOT setting on *IN56.
> 
> HELP!
> 
> Peace,
> 
> -- Don Schenck
> 
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