How to handle "Exists" property? It throws "error" when certain object doesn't exist instead of throwing it as "False"

Hi Vikraman



I think you need to use one of the waitChild/waitAliasChild type methods.



When checking the Exists property of an object, if that object doesn't exist, teh Exists property, by definition, doesn't exist either, hence your error in the log file.



If you're your using Aliases, then use the waitAliasChild method, something like this:

If (<processName>.waitAliasChild("<objectName>", 5000).Exists)

   'do something here

Else

   'Object doesn't exist - do something else here

End If

Basically, the above waitAliasChild method will check for the existence of the object and will continue to do so for 5 seconds.  If after 5 seconds, the object doesn't exist, a stub object with only one property (the Exists property) is returned, which will be set to false, meaning that the statements in the Else clause will be executed.  If, however, the object is found within the 5 second time limit, the script will immediately act on the appropriate statements for teh 'true' part of the If statement.



Hope this helps.



Regards

Stephen.

Thanks Gena & Stephen :)