JM,

I don't check to see if a var is already defined, but if there is doubt, 
I define it without a value, and then check the value, or for null.

Set v vVar Text

If vVar is null then
....
endif

Ben Petersen


On 14 Feb 2002, at 12:52, J.M. GRATIAS wrote:

> 
> Hi all,
> 
> 
> I am looking for a way to check if a variable has been already defined.
> 
> A way that don't display an error.
> 
> Is there a function for that ?
> 
> Or may be a tip  ....
> 
> TIA
> 
> 
> J.M. GRATIAS, Logimatique
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