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This one has me baffled
Message
De
30/03/1998 23:27:43
Raul Davila
Davila Programming Services
Toa Alta, Porto Rico
 
 
À
29/03/1998 23:52:15
Information générale
Forum:
Visual FoxPro
Catégorie:
Codage, syntaxe et commandes
Divers
Thread ID:
00088012
Message ID:
00088309
Vues:
26
>A menu option calls the procedure with a parameter (the form to launch mFormName):
>
>PROCEDURE LAUNCHFORM
>1 if wexist(mFormName)
>2 mCommand=mFormName+".Show"
>3 &mCommand
>4 else
>5 do form &mFormName
>6 endif
>RETURN
>
>which, to my simple mind should work.
>
>Lets say the form has not been launched and so does not exist in this instance of the app. Calling the code above correctly launches the else portion and launches the form.
>
>If I immediately call the procedure again, via a second call to the menu option, the code pukes at line 2 with the error "Object OUTGOING is not found". (OUTGOING being the value of mFormName). It has correctly identified that the window does exist - and it does because I can see it on the screen - but it ceases to exist in the sense that I can call its "Show" method.
>
>A LIST OBJECTS at this point confirms that the object does not exist ... or does it ? Or is a window not an object ?
>
>Gerry.

Have you tried usin ISNULL() instead of WExist()?

This one works well for me every time:

do form MyForm name SomeName
if !ISNULL(SomeName)
SomeName.Show()
endif

HTH
R. Davila
DBA / Network Administrator
Administracion de Fomento Comercial
Gobierno de Puerto Rico

Still waiting for FoxPro for LINUX
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