Create the dropdownlist in the edit template like above and then create a RowBound event for the gridview. Inside that event, use the e.Row.FindControl method to get your dropdownlist object. Then set ...
At some point, most applications need to present a list of items. In the pre-Windows Phone 8.1 days, this would've meant using the ListBox or the LongListSelector. But the new world of Windows ...