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Button calls a form, form returns values, button code co
Message
De
29/08/2008 10:07:40
Jay Johengen
Altamahaw-Ossipee, Caroline du Nord, États-Unis
 
 
À
29/08/2008 10:03:40
Hilmar Zonneveld
Independent Consultant
Cochabamba, Bolivie
Information générale
Forum:
Visual FoxPro
Catégorie:
Gestionnaire d'écran & Écrans
Versions des environnements
Visual FoxPro:
VFP 9 SP2
Divers
Thread ID:
01342942
Message ID:
01343102
Vues:
23
>>>Hi Jay,
>>>
>>> How can I keep the other values gathered from Form2 in scope, or return them to Form1?
>>>
>>>Store them into properties of the form. Then, in the Unload event create an object based on the EMPTY() class and use ADDPROPERTY() to transfer all values to the object. Return this object or NULL instead of .T. and .F.
>>
>>How do I return NULL? Just RETURN NULL?
>
>Yes, but not all NULLs have been created equal...
>
>If you need your variable to be of a specific type - for example, if a later evaluation might fail if your NULL has the wrong data type - you need to specify a type.
>
>For example, if the calling function expects a numeric type, you might do the following:
>
>
>x = 0
>x = NULL
>return x
>
>
>Otherwise, the returned value will be of type "L".

So, does this code seem reasonable then?
oDOS = CREATEOBJECT('Empty')

ADDPROPERTY(oDOS, 'DOSBegin', THISFORM.DOSBegin)
ADDPROPERTY(oDOS, 'DOSEnd', THISFORM.DOSEnd)

IF !THISFORM.Ok
	oDOS = NULL
ENDIF

RETURN oDOS
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