Embedded Gridview Postback into EditMode

I have a page I'm working on with a Gridview embedded into a Gridview. The page uses templates to fill itself out, including the edittemplate for rows. When the row is in edit mode, 3 of the cells contain dropdownlists.

I'm trying to 开发者_开发问答filter these dropdownlists to prevent conflicts. The problem is that when the page autoposts back, the row is no longer in edit mode. Is it possible to persist edit mode on that row through a postback and apply the filter I need to?

The GridView should be in edit mode, even after the postback. Maybe you are forcing a DataBind in Page_Load or some other event.