Bob I have tried this but it only sorting in ascending order and not descending.
Any ideas?
Thanks
Private Sub MasterLbl_Click()
If Me.OrderBy = "[MastRef],[SubRef],[DiffRef]" Then
Me.OrderBy = "[MastRef] DESC,[SubRef] DESC,[DiffRef] DESC"
Else
Me.OrderBy = "[MastRef],[SubRef],[DiffRef]"...