An enum type that denotes the effects of the ListView. Available options are as follows None, SlideLeft, SlideDown, Zoom, Fade;
None- No animation is applied when items are added or removed from the ListView.
SlideLeft- Items slide in from the left when added and slide out to the left when removed.
SlideDown- Items slide in from the top when added and slide out to the top when removed.
Zoom- Items zoom in or out when added or removed.
Fade- Items fade in or out when added or removed.