Check out my jsfiddle example. I don't know what I'm doing wrong but after you click an item in the grid an edit box will apear below. If you change the dropdown value from female to male it works, but after that try switching back to female and it just bugges out and stays on male. I use dropdown lists in this way in a lot of places and i get that issue all the time, it always wont change anymore if you set it to the first value from the datasource.
http://jsfiddle.net/UtQuG/37/
http://jsfiddle.net/UtQuG/37/