The VisibleCount property retrieves the number of items being displayed in the control's client area. Use the VisibleItemCount property to retrieve the number of visible items in the full list. Use  FirstVisibleItem and NextVisibleItem properties to determine the items being displayed in the control's client area. Use the IsItemVisible property to check whether an item fits the control's client area. Use the ItemCount property to count the items in the control. Use the ChildCount property to count the child items.