checking that an object exists 2005-04-07 - By Brad Friedman
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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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