I have two Combo boxes. Based on the selection in Combo1, the list of available choices in Combo2 changes. Once a selection is made in Combo2, should the user change their mind and go back to Combo1 to make a different selection, the original Combo2 selection is still visible in the Combo2 box. I'd like to clear it when the user makes a new selection in Combo1. I've tired to do a cbo1. Value = "" and cbo.1.Text = " ", but neither seems to work. Any idea how to clear a previous value in a Combo box ?