UFT Pro (LeanFT) .NET SDK Reference, Version 14.03
Select Method (IComboBox)
Selects an item from the combo box.
Overload List
OverloadDescription
Select(String)Selects the item from the combo box list by name.  
Select(UInt32)Selects the item from the combo box list by index.  
Select(IComboBoxItem)Selects the item object from the combo box list.