![datasource property added to ultraoptionset](images/WinEditors_Walk_Through_Databinding_the_WinComboEditor_and_WinOptionSet_Controls_01.png)
The WinOptionSet™ control can now be bound to a data source via a new DataSource property. To allow for databinding, you must set the DataSource property of the WinComboEditor and specify the following members:
The WinOptionSet then displays the values found in the data source and exposes them through the DisplayMember property. When a bound ValueListItem is created, the InitializeDataItem event fires, once per item. Each event gives you a chance to apply value-dependent appearance settings to the item.