There are probably thousand possibilities what and where your DropDown and
DropDownList can be. The most obvious a Window forms, however it can as well
be ASPNET because you write to this board. But because that you say that it
is in the a wizard it can as well be in a kind of Grid.
I use the data form wizard in vb.net to create a bound form. Then I
changed some textboxes to combos. There was no problem saving the data
with the default DropDown style. When I change the style to
DropDownList, the values to not save anymore. I did find a workaround
where I add a invisible text box to hold the bound value but it is
beyond me why the DropDownList does not save to the DB.