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Help on Array
Message
De
26/08/2013 16:48:19
 
 
À
26/08/2013 16:08:34
Information générale
Forum:
Visual FoxPro
Catégorie:
Codage, syntaxe et commandes
Titre:
Versions des environnements
Visual FoxPro:
VFP 9 SP2
OS:
Windows XP
Network:
Windows XP
Database:
Visual FoxPro
Application:
Desktop
Divers
Thread ID:
01581462
Message ID:
01581467
Vues:
42
>I am using the following code to get the Maximum two values of posR from a cursor.
>
>
>SELECT TOP 2 posR FROM PageTwo ORDER BY posR DESC INTO ARRAY Maxrows
>nfisrtposR=Maxrows(1)
>nSecondposR=Maxrows(2)
>
>
>However, i a case I am encountered with a situation where there is no posR in Pagetwo and at that situation my program generates error as Maxrows(1).prg does not exist.
>
>Whats the Problem, How to overcome it ?

Check _tally after the Select statement, it will be 0 for no matching records.
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