2.0 Gridview question: Template Column Scope

[Phuff]

I'm trying to do something and its proving tricky. When someone clicks
the edit button I don't want to use the standard textbox, so I create a
templated column. I need 2 dropdowns and a textbox. When they select
a category in the first dropdown the second is populated correctly.
that works. Now I want the textbox's text to be populated with the
second dropdown when an item is selected, and for that text to be what
UPDATES the datasource.

This is easy in a normal case, but none of the EditItem control IDs are
"declared." I cna't seem to figure it out. My current solution is to
have an area above the gridview with the asp dropdowns and textbox that
updates selected rows. Now I can control everything in my code behind
class because its in scope. This is rinky dink and not as fluid as if
it were part of an EditSelectedIte m templated column. How do I control
the specifics of these dynamic controls? Thanks, so much in advance!!

Paul