Plateforme Level Extreme
Abonnement
Profil corporatif
Produits & Services
Support
Légal
English
Checking for duplicates
Message
De
10/01/2000 14:23:42
 
 
Information générale
Forum:
Visual FoxPro
Catégorie:
Gestionnaire d'écran & Écrans
Divers
Thread ID:
00315645
Message ID:
00315664
Vues:
26
The safest way, IMHO, would be to define a rule in the table that restrict duplicates for this field. If TableUpdate() return .F., use AError() to detrmine why. That way, if 2 users tries to add the same value at the same time, only one of them will succeed.

HTH
>This seems line an elementary question, but it's got me a bit puzzled. When the user is entering a new record, how do you check to be sure a field doesn't have a duplicate value without moving the record pointer? This also would have to take into account buffering. It seems as though I've done this before, but my head is in a bit of a muddle today and it's not coming to me.
Précédent
Suivant
Répondre
Fil
Voir

Click here to load this message in the networking platform