Selecting an item in a combo box list
To select an item in a combo box the SetSelection() method is used. The index of the item is used to specify which item is to be selected, for example:
.comboControl1.SetSelection(5)
would select the fifth item in the list box. The GetIndex() method can be used to return the index of an item. If no index value is specified with the SetSelection() method then any existing selection, if any, is cleared.