'Declaration Public Property ItemMemberProvider As IItemMemberProvider
public IItemMemberProvider ItemMemberProvider {get; set;}
Note that you don't normally have to provide this interface. The ComboBoxItemsProvider has default logic to get the value and display text for each item based on the ValuePath and DisplayMemberPath properties. However you can provide this interface if you have custom logic for generating value and display texts or to improve performance when you have a large number of data items in the items source, since the default logic involves using reflection to evaluate value and display member paths. Note that if you use ComboBoxDataItem objects as data items then this property will be ignored since such an interface is not necessary in that case.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2