Never mind, I got it. I added the following to the OnOpen Event:
Select Case Forms!frmProofRptSortOrder!Combo16
Case "LastName"
Me.GroupLevel(0).ControlSource = "LastName"
Me.GroupLevel(1).ControlSource = "FirstName"
Me.GroupLevel(2).ControlSource = "Phone"
GoTo NormalEnd
Case "DeviceID"
Me.GroupLevel(0).ControlSource = "DeviceID"
Me.GroupLevel(1).ControlSource = "LastName"
Me.GroupLevel(2).ControlSource = "FirstName"
GoTo NormalEnd
Case "CubicleID"
Me.GroupLevel(0).ControlSource = "CubicleID"
Me.GroupLevel(1).ControlSource = "LastName"
Me.GroupLevel(2).ControlSource = "FirstName"
GoTo NormalEnd
Case "Phone"
Me.GroupLevel(0).ControlSource = "Phone"
Me.GroupLevel(1).ControlSource = "LastName"
Me.GroupLevel(2).ControlSource = "FirstName"
GoTo NormalEnd
Case "Phone3000"
Me.GroupLevel(0).ControlSource = "Phone3000"
Me.GroupLevel(1).ControlSource = "LastName"
Me.GroupLevel(2).ControlSource = "FirstName"
GoTo NormalEnd
Case Else
Me.GroupLevel(0).ControlSource = "LastName"
Me.GroupLevel(1).ControlSource = "FirstName"
GoTo NormalEnd
End Select
> I was hoping to use an expression in the Sorting and Grouping form for a
> Report. I want the User to choose what field to sort the report on in a
[quoted text clipped - 4 lines]
>
> Thanks! Bill