dependent dropdownlists with a repeater

[bopritchard]

i've got a repeater that on page load I insert a blank row into..there is an ADD button for insert multiple new rows also...in the row are 2 dropdownlists...the 2nd ddl's data is based on the selection in the first...both of these ddl's get their data from a method returning a dataset

i'm just looking for an example of how to do this