You cannot view the ItemData of a combo, it is purely a hidden property. I presume therefore that you want to add the contents of your recordset to the list.
You can do that like this (assuming your recordset already has the data, and the field to display is the first field):
VB Code:
Combo1.Clear
Do While Not(rs.EOF)
Combo1.Additem rs.fields(0)
rs.MoveNext
Loop
(just change rs to the name of your recordset)