A little background: there is an issue within the gridview control that prevents you from binding the second control when creating a cascading dropdownlist without the ajax toolkit. It is somewhat complicated to work around this limitation and I've struggled with it.
I'm wondering if the cascading dropdownlist in the toolkit would be a good fit to work around this problem? I've never used this particular tool nor have I ever built a service but it doesn't seem overly complicated. I've spent innumerable hours trying to work around the gridview/binding issue and I'm wondering if anyone has had any success with the toolkit solution within a gridview?
Note that my solution requires 3 cascading lists and within the gridview, the users will edit data rows (thus I need bind, not eval).