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Building a Conditional Variable
Message
De
02/09/2008 09:29:31
Hilmar Zonneveld
Independent Consultant
Cochabamba, Bolivie
 
 
À
02/09/2008 09:04:22
Jay Johengen
Altamahaw-Ossipee, Caroline du Nord, États-Unis
Information générale
Forum:
Visual FoxPro
Catégorie:
Gestionnaire d'écran & Écrans
Versions des environnements
Visual FoxPro:
VFP 9 SP2
OS:
Windows XP SP2
Network:
Windows 2008 Server
Database:
MS SQL Server
Divers
Thread ID:
01344079
Message ID:
01344103
Vues:
18
>I have a variable, m.FilterCondition, that is built as criteria is selected on the form. For example:
>
>m.FilterConditon = m.FilterCondition + " AND SomeValue = SomeOtherValue01"
>
>This works great until the same condition is selected again:
>
>m.FilterConditon = m.FilterCondition + " AND SomeValue = SomeOtherValue02"
>
>Now m.FilterCondition has both clauses, which causes problems. How can I ensure that I have a good conditional variable?

Pressumably, you have two parts of the condition: a "fixed" part, and a "user-supplied" part. Keep the fixed part in a separate variable (or more likely, form property), and then add the user-supplied conditions. Next time the user selects criteria, add those criteria to the fixed part again.
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)
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