Yes, you would code the combobox's AFTER UPDATE event to change the subform's source object property using an SQL statement that varies based on your selection. For example:
Code:
Select Case Me.cboMyCombobox
Case "This"
Me.sfrMySubform.SourceObject = "Select ..."
Case "That"
Me.sfrMySubform.SourceObject = "Select Something else..."
Case Else
Me.sfrMySubform.SourceObject = "Select Different..."
End Select
Where the actual "Select ..." would be a REAL statement instead of these fake ones, or they would be names of valid tables or queries.
Greg Serrano
Michigan Dept. of Environmental Quality, Air Quality Division