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dmonckton
Contributor
Joined: 09 Aug 2002
Posts: 117
Location: Lewes, U.K.
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 Posted: Wed Nov 08, 2006 5:43 pm Post subject: List in use? |
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Hi
What's the best way to check if a list is in use? I tried....
| Code: |
if @count(1)
do something
end
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But this gives an error if the list hasn't already been created.
All the other list functions seem to give an error if the list hasn't
already been created. I want to know if the list has been created
or not?
Thanks
David... |
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SnarlingSheep
Professional Member
Joined: 13 Mar 2001
Posts: 759
Location: Michigan
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| Posted: Wed Nov 08, 2006 6:21 pm Post subject: |
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You could use something like this:
| Code: |
option errortrap,nolist
if @count(1)
info "List exists"
end
exit
:nolist
if @equal(@error(),4)
info "List does not exist"
option errortrap
end
exit
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_________________
-Sheep
My pockets hurt... |
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dmonckton
Contributor
Joined: 09 Aug 2002
Posts: 117
Location: Lewes, U.K.
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| Posted: Wed Nov 08, 2006 9:57 pm Post subject: |
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Excellent!
That is just what I wanted.
Never used ERRORTRAP before! Cool.
Thanks
David... |
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