Question

I am trying to add an AJAX Collapsible Panel to my HTML page. I know you can do a AJAX Collapsible Panel using asp.net fairly easily. However, I need to add one to an already existing HTML page. Any ideas how to do this using HTML, Javascript and AJAX? Thanks

Answer 1

1. Add an onchange event to the first select
2. In the handler place an Ajax call and populate the second select with the results
3. The Ajax call should accept a single parameter (query string) and return key/value collection as Json

You might actually find this way is easier (with Jquery) than using the ASP.net Ajax stuff.