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Defensive programming...
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De
06/06/2002 15:45:08
 
 
À
06/06/2002 15:26:47
Information générale
Forum:
Visual FoxPro
Catégorie:
Codage, syntaxe et commandes
Divers
Thread ID:
00665394
Message ID:
00665658
Vues:
18
AFAIK they both work. I use one or the other depending on need. Sometimes I'll want the form not to be initialised depending on the status of some control or other on the form, and I need it to be initialised first. If so, I use the form's init to return .F., otherwise, I normally use the Load.

Alan

>>>Hi Chris,
>>>
>>>Since you want to check this stuff first thing ( i.e. in Load or BeforeOpenTables ), looks like you might want to do something like add a property to your base form class, something like "CancelFormLoad". Then in your procedures instead of returning a .T./.F. if your requirement fails, you can set the CancelFormLoad property to .T.. Then in the form Init, check this property like
>>>IF THISFORM.CancelFormLoad
>>>    RETURN .F.
>>>ENDIF
>>>Returning .F. from the Init will stop the form from instantiating. You might want to work with this but you get the idea here.
>>>
>>>Bill
>>>
>>
>>You can return .F. from the Load event to prevent a form from being created.
>
>My understanding was that a return of .F. from the form Init was the proper way to accomplish this.
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