usesDataSource
A Boolean value indicating whether the combo box retrieves its items from a data source object.
Declaration
var usesDataSource: Bool { get set }Discussion
When the value of this property is true, the combo box retrieves its items from the object in the dataSource property. When the value is false, the combo box manages an internal list of items, which it gets from the ones specified at design time and the ones you add programmatically.