Need For Similar Linked Select Boxes

[WanamakerMedia]

Check out http://trade-in-value.com/

I am interested in locating Ajax code similar to this so that I can link together a few different select boxes and dynamically query a mySQL db as I need to populate others ...

Any ideas on something that might already exist?

[AricC]

Check out http://trade-in-value.com/

I am interested in locating Ajax code similar to this so that I can link together a few different select boxes and dynamically query a mySQL db as I need to populate others ...

Any ideas on something that might already exist?

How much do you know about AJAX? Here is the W3 Schools tutorial. There are a lot of examples on the web have you tried googling?

[acoder]

Check out http://trade-in-value.com/

I am interested in locating Ajax code similar to this so that I can link together a few different select boxes and dynamically query a mySQL db as I need to populate others ...

Any ideas on something that might already exist?

The site that you have shown uses three different files (Year.aspx, Make.aspx and Model.aspx) to gather the data for the select boxes. Just call the same code for the different boxes, but either different urls or different parameters. The bulk of the work is on the server-side (PHP, I presume) and dealing with the response.

If you are unsure about AJAX, check the AJAX links on the sticky (Offsite Links) at the top of this board.

[WanamakerMedia]

I have googled and checked out the W3 school ... but cannot seem to find a way to make select box #3 dependant on what is already in select box #1 and select box #2. I can get #1 and #2 to work perfectly, but I have no way of getting those two values to help calculate what should be shown in select box #3. Thats where I am stuck.

[acoder]

That should be easy, though I haven't tried it.

Set the onchange event handler on the second list as you have for the first list. It should pass the value from both lists or one list (depending on how you have set up your database). Basically, pass whatever is required to get the values.

If you want to work with a framework, here is an example.

[WanamakerMedia]

That framework should work ... I just have to look through it and try to understand it. Thanks!