Combo and Subform

[Priss]

Hi - I created a form with a subform. There is a field within that subform that I would like to use as a combo. See code below - not matching field from subform. Can anyone give an idea as to how it should read? I know the tblDesc subform should be in the code somewhere. HELP, please

Dim rs As Object
Set rs = Me.Recordset.Clone
rs.FindFirst "[ID] = " & Str(Me![Combo1])
Me.Bookmark = rs.Bookmark