close ad
Databridge V2 with MySQLi support IS Now Available!
open ad
View Menu

Technical Support Forums

Free, outstanding support from WebAssist and your colleagues


I need help please with 3 dependent drop downs

Thread began 9/24/2010 2:48 am by capirucho | Last modified 9/25/2010 11:06 am by Dave Buchholz | 1117 views | 3 replies |


I need help please with 3 dependent drop downs

I have two drop downs working. When I add a third drop down it does not work. What am I doing wrong?

1st dropdown > Select State
2nd dropdown > Select City
3rd dropdown > Select Zip

You can see my test page at:

PHP File is here:

SQL file for table im using:

Any help is greatly appreciated. I've been stuck on this for a while so I come to you FORUM GODS for help.

Much appreciated.

Sign in to reply to this post

Jason ByrnesWebAssist

Theres a couple of small problems here:

1) the rsListOfCities dynamic array is set to pass the zip as child id, use the city instead

2) rsListOfZipcodes dynamic array is set to use the city as the parent ID, but it is not included in the recordset:

$query_rsListOfZipcodes = "SELECT FROM cityStatZip_tbl ORDER BY";

change that to include the city:

$query_rsListOfZipcodes = "SELECT, FROM cityStatZip_tbl ORDER BY";
Sign in to reply to this post


thank you very much. that worked very well!!

thank you very much that worked.

I do notice a problem now:

It seems that Dynamic Dropdown code is not passing the state value along.
So for example when I select

1>> Select State: California
2>> Select City: Torrance
3>> Select Zipcodes: [This list of Zipcodes should be populated only by the zipcodes that are in Torrance, California]

What seems to be happening is that on 3rd select I'm getting "all" zipcodes with any city "torrance" (As is the case there is a Torrance in Pennsylvania). But what I need is to be specific to the state that was selected? Is this something on my end or something that can't be done with the Dynamcic Dropdown Extension?

Once again thank you very much.

Sign in to reply to this post

Dave BuchholzBeta Tester

Working off the original file you posted you need to make these changes:

1. The query for rsListOfZipcodes needs to be changed like so:

$query_rsListOfZipcodes = "SELECT, FROM cityStatZip_tbl ORDER BY";

2. Select the Create Dynamic Array (rsListOfCities) entry in the Server Behaviours Panel and change the entries as follows:
Parent ID field: statename
Child ID field: statename
Child Text field: city

3. Select the Create Dynamic Array (rsListOfZipcodes) entry in the Server Behaviours Panel and change the entries as follows:
Parent ID field: city
Child ID field: city
Child Text field: zip

I would also using Group By rather than SELECT DISTINCT in you other recordsets like so:

$query_rsStates = "SELECT cityStatZip_tbl.statename FROM cityStatZip_tbl GROUP BY cityStatZip_tbl.statename ORDER BY cityStatZip_tbl.statename";

$query_rsListOfCities = "SELECT, cityStatZip_tbl.statename FROM cityStatZip_tbl GROUP BY ORDER BY";

That should get you going.

Sign in to reply to this post

Build websites with a little help from your friends

Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.

Build websites from already-built web applications

These out-of-the-box solutions provide you proven, tested applications that can be up and running now.  Build a store, a gallery, or a web-based email solution.

Want your website pre-built and hosted?

Close Windowclose

Rate your experience or provide feedback on this page

Account or customer service questions?
Please user our contact form.

Need technical support?
Please visit support to ask a question





Ease of use


security code refresh image

We do not respond to comments submitted from this page directly, but we do read and analyze any feedback and will use it to help make your experience better in the future.

Close Windowclose

We were unable to retrieve the attached file

Close Windowclose

Attach and remove files

add attachmentAdd attachment
Close Windowclose

Enter the URL you would like to link to in your post

Close Windowclose

This is how you use right click RTF editing

Enable right click RTF editing option allows you to add html markup into your tutorial such as images, bulleted lists, files and more...

-- click to close --

Uploading file...