RE: Detecting if changes were made to a screen

One approach:
Create a multiple occurence data structure to contain:
1. Fields as they were sent to the display file.
2. Fields as they were received from the display file.
Compare both occurences to identify differences.

Another approach:
Create hidden fields on the display file record format to contain the
values as they were sent. They will be available to use for comparison
after READ of the display file.

Ken Slaugh
Senior Programmer/System Analyst
AS/400 Professional Network Administrator/MSE
Specialist - Client Access/400
Chouinard & Myhre, Inc.

> -----Original Message-----
> From: as400mail@smtpmail.nationcredit.com
> [SMTP:as400mail@smtpmail.nationcredit.com]
> Sent: Monday, March 22, 1999 8:07 AM
> To:   MIDRANGE-L@midrange.com
> Subject:      Detecting if changes were made to a screen
> 
> Short of saving multiple input-field data to saved fields, and then
> continually
> comparing all the input fields to the corresponding saved fields, is
> anyone
> aware of a more simple way to detect if the user has made any changes
> to fields
> on a displayed screen (record)? In other words, I want to display a
> screen
> record, and then monitor if the user has made any changes to the
> fields. If so,
> process one way, and if not, process an alternate way. (This is NOT a
> subfile,
> simply a displayed screen (record).) I know I can"READ" the screen,
> but what do
> I compare it against? In D-Specs can I create a dummy "screen record"
> using the
> "LIKE" keyword? (I'm working in RPG-IV, V3R2)
> 
> TIA,
> 
> David Stobberingh
> Nationwide Credit/Phoenix, AZ
> 
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