AJAX and Database

I'm creating this ASP registration page and some of the dropdowns are based on the previous selection made. I was wondering if someone can provide an example how to accomplish that task...

Say I have 3 dropdowns :

First get populated with Page_Load and based on that selection second gets populated and based on second third gets populated.

Thanks,

Harsimrat

The ajax control toolkit contains a CascadingDropdown solution.

Check it out here:http://ajax.asp.net/ajaxtoolkit/CascadingDropDown/CascadingDropDown.aspx