Dynamic dual select box

Question

I am sorry that i am asking this question because i have
searched this website and forums to get my answer but my problem
remains unsolved.
The problem is reagrding the dual select boxes which are
dependant uopn one another like:
A1 is dependant on A.
if i select A from query, the second select should get
populated from the query based upon the criteria selected by A.
like i have two fields which are
RESIDENTIAL
COMMERCIAL
these are in the first select box, i am driving their value
from a query as:
<cfquery name="getSubdivision" datasource="#dsn#">
SELECT *
FROM subdivision
</cfquery>
The if i select the value RESIDENTIAL the select select
should automatically be papulated by the value based on the
RESIDENTIAL like MALLS/SHOWROOMS/SHOPS
etc.
my second query is which is getting results from the above
query as are:
<cfquery name="getproperty" datasource="#dsn#">
SELECT *
FROM properties_types
Where sub_id = #getsubdivision.sub_id#
</cfquery>
As the above query is simple, my properties_types table have
structure like this"
id
property_type
sub_id (This will get the value from subdivision's table
sub_id (primary key)) and foreign key in this table.
hope u understand what i am tryin to achieve
when i select A i get all the values in the A1 based on the
query which does not match RESIDENTIAL value also.
i tried the tutes on the website like
tutorial166.easycfm.com but that tutorial just refreshes the
page, i turned around and searched some more but hard to find.
does anyone have any idea how to achieve this simple info as
this is coming headache for me,
thanks

Answer 1

I'm heading out just now, but there are quite a few examples
on google
http://www.google.com/search?q=ColdFusion+related+select+lists
The first few are:
http://tutorial196.easycfm.com/
http://www.adobe.com/cfusion/exchange/index.cfm?event=extensionDetail&loc=en_us&extid=1027 446
http://www.forta.com/blog/index.cfm/2007/5/31/ColdFusion-Ajax-Tutorial-2-Related-Selects
Good luck
HTH