Hello, all.

I'm new to working with Structures, and I'm getting an error message. I'm sure it's old-hat to most of you - I'm pretty sure this is a rookie mistake.

I'm trying to loop through form fields; I have hidden fields that contain the original value of displayed fields, to check and see which fields have been updated. For the fields that have a value different than the hidden, I'm adding to a structure for updating a database.

I'm getting the following error message:
You have attempted to dereference a scalar variable of type class java.lang.Boolean as a structure with members.

Here is the code:
<cfset thisCount = 0 />
<cfloop list="#Form.Fieldnames#" index="idx">
	<cfset thisCount = thisCount + 1 />
	<cfset request.thisData[thisCount] = Form[idx] />	Field: #idx# - Value: #Form[idx]#<br />
	<cfif val(thisCount) mod 9 is 0>
		<cfif trim(request.thisData[2]) neq trim(request.thisData[3]) OR
		trim(request.thisData[4]) neq trim(request.thisData[5]) OR
		trim(request.thisData[6]) neq trim(request.thisData[7]) OR
		trim(request.thisData[8]) neq trim(request.thisData[9])>
		<cfset updateStruct = StructInsert(updateStruct,"Resource_ID",trim(request.thisData[1])) />
		<cfset updateStruct = StructInsert(updateStruct,"bf_approach",trim(request.thisData[2])) />
		<cfset updateStruct = StructInsert(updateStruct,"bf_itrr",trim(request.thisData[4])) />
		<cfset updateStruct = StructInsert(updateStruct,"bf_itrr_sp",trim(request.thisData[6])) />
		<cfset updateStruct = StructInsert(updateStruct,"bf_results",trim(request.thisData[8])) />
	<cfset thisCount = 0 />
What is this Struct n00b doing wrong?