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IIF() Evaluates Differently Than IF?
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Information générale
Forum:
Visual FoxPro
Catégorie:
Codage, syntaxe et commandes
Divers
Thread ID:
00044321
Message ID:
00044344
Vues:
32
>Here's an odd one. The following code returns two different answers, even though they should be identical:
>
>****************
>* The following code makes vp_dbfname = ""
>****************
>iif(EMPTY(thisform.ctextbox1.Value),vp_dbfname = "", ;
> vp_dbfname = thisform.ctextbox1.Value)
>
>****************
>* This code makes vp_dbfname = thisform.ctextbox1.Value
>****************
>if EMPTY(thisform.ctextbox1.Value)
> vp_dbfname=""
>else
> vp_dbfname = thisform.ctextbox1.Value
>endif

what you are returning from the code on top is the logical value of the expression vp_dbfname = ...

you should write instead :

vp_dbfname = IIF(EMPTY(thisform.ctextbox1.Value),"",thisform.ctextbox1.Value)

hoping this helps

Christian
Christian Desbourse ( Belgium )
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