Sorry but this is confusing to me.
Conditional formatting is used to change the appearance of various controls.
What has that got to do with locking controls?
Controls should be locked by using e.g. Me.MyControlName.Locked = True
If you have a large number to lock at once, the Tag property works well for that purpose
If you then want to change the appearance of those locked controls, that can also be done by e.g.
Code:
If Me.MyControName.Locked Then
Me.MyControlName.BackColor=vbCyan
Else
Me.MyControlName.BackColor=vbWhite
End If
etc....