checking that an object exists 2005-04-07 - By Jerry Gamache
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I have seen that question before. Here is the answer:
Function ObjectExist( in_fullname )
set oCI = CreateObject("XSI.CollectionItem")
oCI.value = in_fullname
ObjectExist = (StrComp(oCI.value, in_fullname,VBTextCompare) = 0)
End Function
-- --Original Message-- --
From: owner-xsi@(protected) [mailto:owner-xsi@(protected)]On Behalf
Of Brad Friedman
Posted At: Thursday, April 07, 2005 2:33 PM
Posted To: xsi
Conversation: checking that an object exists
Subject: checking that an object exists
Hi,
I got an interesting question from someone, that I wanted to check out
with you all.
Given an object's full name, he wants to check if it exists.
So there are two ways to do it.
Via command: GetValue()
Via object model: Dictionary.GetObject()
now here's the question:
Both of these solutions throw an exception if the given object does not
exist. While you can catch the exception, I'd think this is a poor way
to go about solving the problem. Exceptions should not be used for flow
control. They're inherently slow (or so I've been taught time and time
again). Is there a better fast way to check if an object exists from
its full name that doesn't involve depending on exceptions? I can come
up with some ways of doing it that will be inherently slow... but none
that are fast.
-brad
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