It is mainly for delivery/packaging reasons.

I'm just surprised to know why the data didn't get dropped but instead moved to the next field. A colleague from way back says it is related to what he calls "5250 data stream" which I'm now googling.

I'm kind of surprised you were able to even define the field in your program, since it should have already been externally defined, but I figure your program is hiding the relationship somehow with the datastructure.
Spot on.

-----Original Message-----
From: RPG400-L [mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of darren@xxxxxxxxx
Sent: Monday, June 01, 2015 10:15 PM
To: RPG programming on the IBM i (AS/400 and iSeries)
Subject: Re: Display file field

I assume you aren't installing the display file because of locking issues?
If so, my workaround for that issue is to create a copy of the display file, named something else, and point the RPG program to that display file.
Then, once everyone has exited the original version of the program, I install the mod to the original display file and modify the RPG.

If my assumption is incorrect, and you're avoiding installing the display file for a different reason, you're going to have to revert the display file field back to 7, and create another field for the 8 characters and truncate in program. I'm kind of surprised you were able to even define the field in your program, since it should have already been externally defined, but I figure your program is hiding the relationship somehow with the datastructure.






From:"Fajardo, Eduardo" <eduardo.fajardo@xxxxxxxxx>
To:"RPG400-L@xxxxxxxxxxxx" <RPG400-L@xxxxxxxxxxxx>
Date:06/01/2015 08:33 AM
Subject:Display file field
Sent by:"RPG400-L" <rpg400-l-bounces@xxxxxxxxxxxx>



Hi,

I have a program and a display file. A screen field, say CCCCCCC, is defined in the display header format as 7char. The same field is defined in the program DS as 7char, initialized to a certain value.

I am working on a project which aims to increase the length of field C from
7 to 8 so I changed and recompiled the program as well as the display file.
I forgot to deploy the display file and went on to test the new changes which means I am now using the latest program(8char fieldC) over an old display file (7char fieldC). Initially, I assumed it will just drop/truncate the last character. I was wrong. The last character of field C was placed in the next field and the rest of the fields in the screen format moved a character to the right as seen below.

I know it is best practice to deploy both but given this instance, I'd like to know if this is the correct behavior. If so, are there workarounds aside from deploying the latest display file?




Before

FldA FldB FldC FldD FldE
PGMNM ENQ XXXXXXX TITLE CCYYMMDD <-- Data value


After

FldA FldB FldC FldD FldE
PGMNM ENQ XXXXXXX XTITL ECCYYMMD <-- Data value

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