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Form controls sometimes invisible
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29/06/2009 15:45:52
Gary Foster
Pointsource Consulting LLC
Chanhassen, Minnesota, États-Unis
 
 
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Information générale
Forum:
Visual FoxPro
Catégorie:
Gestionnaire d'écran & Écrans
Titre:
Form controls sometimes invisible
Versions des environnements
Visual FoxPro:
VFP 9 SP1
OS:
Windows XP SP2
Database:
MS SQL Server
Application:
Desktop
Divers
Thread ID:
01409187
Message ID:
01409187
Vues:
174
Hi,
I have a real puzzler. Of the >230 forms (classes) in our application, one form sometimes comes up blank, no visible controls. Not always, just sometime. I can enter and save data, etc., because I know where to tab to, but the form is blank.

I can get an obj ref to the form and its controls, read and set control values, etc., but it’s still blank.

I’ve played with lockscreen, refresh(), SetFocus(), oForm.txtbox.visible = .t., change form size, whatever. The ShowWindow API call will minimize, maximize, whatever, but the form controls will not paint.

If I close and re-instantiate the form it may open fine or it may be blank.

Anyone ever run into this type of thing before?

Thanks,

Gary
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