All: Structure of Structures Question

I’m trying to look at an element and see if that element has a variable
defined. I’m getting an error:

Element MIDDLE_NAME is undefined in a Java object of type class
coldfusion.runtime.MemorySessionScope referenced as
What can I do to check for existence of this item Middle_Name?

My Setup: CFMX6.1, Win2k, Sun ONE

Regards,
James Blaha

<CFIF #STRUCTKEYEXISTS(APPLICATION.USERSLOGGEDIN,
Variables.USERIDATDOOR)# IS TRUE>
<!--- The user exists. --->
<CFIF
IsDefined(APPLICATION.USERSLOGGEDIN["#Variables.USERIDATDOOR#"].Middle_Name)>

Defined
<CFELSE>
Not Defined
</CFIF>

<CFELSE>
<!--- The user does not exist. --->
</CFIF>


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