Is Defined and Dynamic Application Variables

[Flashm@n]

Hi I'm trying to create dynamic variables in the application scope and then
check for variables existance using the Is Defined function. Basically I check
to see if a application variable is defined if it is then I add a value to the
existing value (creating a comma seprated list in the application scope).
However if the variable does not yet exist I want to create it and add a value
to it. The code I have been using is: <CFARGUMENT NAME='varA'
REQUIRED='Yes'> <CFARGUMENT NAME='varB' REQUIRED='Yes'> <cfif Not
IsDefined('application.grproom.room#varB#')> <cfset
application['grp.grp#varB#'] = #varA#> <cfset message = 'Is not defined'>
<cfelse> <cfset application['grp.grp#varB#'] =
ListAppend(application['grp.grp#varB#'], #varA#)> <cfset message = 'Is
Defined, new element added'> </cfif> I've tried defining and checking the
variables in a number of methods and I know I'm not too far off getting it
nailed, but I've hit a brickwall. Can anyone help? Thanks Matt

[TA-Selene]

You are not working with plain Application variables, rather elements of a
structure stored in Application scope. Try something like this: <cfif Not
StructKeyExists(Application.prgroom, '#varB#')> <cfset
application.grp['grp#varB#'] = varA> <cfset message = 'Is not defined'>
<cfelse> <cfset application.grp['grp#varB#'] =
ListAppend(applicationgrp['grp#varB#'], varA)> <cfset message = 'Is Defined,
new element added'> </cfif>