Gets or sets the active item by its index.
An integer value specifying the active item's index in the source sequence.
Use this property to navigate to a particular item programmatically. Note that you can also allow end-users to navigate between items. See the CarouselPanel.ActivateItemOnClick property and CarouselNavigator class descriptions for more information.
If it's easier for you to obtain the object representing the required item, instead of determining its index, use the CarouselPanel.ActiveItem property for item activation tasks.