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Determining existence of an object
Message
From
09/08/1999 19:10:10
 
 
To
09/08/1999 18:23:48
General information
Forum:
Visual FoxPro
Category:
Classes - VCX
Miscellaneous
Thread ID:
00251780
Message ID:
00251817
Views:
13
I am sure you know John, but hust to clarify-

the test below will determine if the variable named oMyObject is of the object type, but does not test to see if it actually references a living object. To do that, you either need to check the type of one of the object's properties (usually "name"), or, after testing the type, checking for ISNULL(oMyObject)

>Hi Jim,
>
>IF VARTYPE(oMyObject) = "O" && It's an object
>IF VARTYPE(oMyObject) = "U" && It ain't nothing yet
>
>>I am using the addobject method to add an object to my form from a custom container class. Once it is created, how can test to see if it already exists?
>>
>>Thanks
>>Jim Oswald
>>joswald@innova.net
Erik Moore
Clientelligence
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