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Focal Point    Focal Point Forums  Hop To Forum Categories  WebFOCUS/FOCUS Forum on Focal Point     [CLOSED] DEFINE VARIABLE EMPTY

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jenni
Platinum Member
posted
Hi,

I want to define:

whatever/Format = if whatever eq whatever then &something_which_does_not_Need_to_exist else 6something_that does exist

the Problem is that if the variable which does not necessarly Need to exist (because of the logic in my fex) is missing, then I get the ..if..then..else Syntax error, even if my case is the ELSE case.

there are techniques like whatever/format WITH GRADE = IF &something_that_does_not_need_to_exist IS MISSING THEN &something_that_exists ELSE &something_that_does_not_need_to_exist ;
but i get the same if then else error.

Hopefully there is a answer.

This message has been edited. Last edited by: FP Mod Chuck,


WebFOCUS 8.1.05
Windows, All Outputs
 
Posts: 177 | Registered: October 17, 2017Report This Post
FP Mod Chuck
Virtuoso
posted Hide Post
Jenni

Try this at the beginning of your code.


-DEFAULTH &something_which_does_not_Need_to_exist = '';


Thank you for using Focal Point!

Chuck Wolff - Focal Point Moderator
WebFOCUS 7x and 8x, Windows, Linux All output Formats
 
Posts: 2127 | Location: Customer Support | Registered: April 12, 2005Report This Post
Waz
Expert
posted Hide Post
Be careful with using an amper variable set to '', as the IF THEN ELSE will evaluate to IF IS MISSING THEN Blah ELSE ;


I would suggest defaulting the a DEFINEd or COMPUTEd field to control what happens in the test.


Waz...

Prod:WebFOCUS 7.6.10/8.1.04Upgrade:WebFOCUS 8.2.07OS:LinuxOutputs:HTML, PDF, Excel, PPT
In Focus since 1984
Pity the lost knowledge of an old programmer!

 
Posts: 6347 | Location: 33°49'23.0"S, 151°11'41.0"E | Registered: October 31, 2006Report This Post
jenni
Platinum Member
posted Hide Post
i cant use -Default, because it Needs to be a IA Report


WebFOCUS 8.1.05
Windows, All Outputs
 
Posts: 177 | Registered: October 17, 2017Report This Post
Martin vK
Platinum Member
posted Hide Post
You can check the existence of a variable with .EXIST

.EXIST tests for the presence of a value. If a value is not present, a zero (0) is passed to the expression. Otherwise, a non-zero value is passed.

whatever/format WITH GRADE = IF &something_that_does_not_need_to_exist.EXIST EQ 0 THEN &something_that_exists ELSE &something_that_does_not_need_to_exist ;

Or if a space value is also a non-existing value for you then try &something_that_does_not_need_to_exist.QUOTEDSTRING EQ ''

Martin.


WebFocus 8206M, iWay DataMigrator, Windows, DB2 Windows V10.5, MS SQL Server, Azure SQL, Hyperstage, ReportCaster
 
Posts: 168 | Registered: March 29, 2013Report This Post
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