public class ComboBoxItem()
{
   string displayValue;
   string hiddenValue;

   //Constructor
   public ComboBoxItem (string d, string h)
   {
        displayValue = d;
        hiddenValue = h;
   }

   //Accessor
   public string HiddenValue
   {
        get
        {
             return hiddenValue;
        }
   }

   //Override ToString method
   public override string ToString()
   {
        return displayValue;
   }
}