RE: Select/When vs. If/ElseIf

["Kurt Anderson" <kjanderson@xxxxxxxxxxxxx>]

Also to clarify, the 'Other' opcode is similarly available in the
If/ElseIf
To take Michael's example and modify it:

Exfmt Screen 

If KeyPressed = Enter
   do something

ElseIf KeyPressed = F3
  exit from program

Else
  Backup 

EndIf 

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Michael Jacobsen
Sent: Thursday, December 30, 2004 7:41 AM
To: RPG programming on the AS400 / iSeries
Subject: Re: Select/When vs. If/ElseIf

 > Here is an example of when I would use select over an If/Else  With
the 
> Select you don't have all the endif's & I think it is easier to 
> understand.


I just wanted to clarify that with If/ElseIf you don't need "all the
endif's".  When the opcode ELSEIF was added in V5R1 I believe, it
eliminated the need to code multiple EndIf's.  Ex:

Exfmt Screen 

If KeyPressed = Enter
   do something

ElseIf KeyPressed = F3
  exit from program

ElseIf Keypressed = F12
  Backup 

EndIf

The above does the same as a select/when only is 1 line shorter because
there is no Select statement at the beginning.  And adding a ELSE at the
end would work the same as OTHER.  But I agree with Jon Paris on when to
use what.  For the above example, I would probably use a Select instead
since the same field is being tested for different values.

Mike


Mike
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