In the case of an existing database where foreignkeys are used. It is required to be able to set the display-value the items of a dropdown-box so the ID is used to set the value of a field but the Description is used to display a user-friendly display-name.
i.e.:
Person-table {PersonID, PersonName, GenderID}
Gender-table {GenderID, GenderLabel}
The items property of the dropdown for Person.GenderID will be [Gender]
the value-property for Items will be GenderID, but I need a Display-value property to set the GenderLabel so the user does not see the Identifier, but he sees the GenderLabel