Makes the item at the specified index visible. If necessary, the ListView will scroll to the item.
The index of the item to scroll into view.
This method does not return a value.
When the ListView control's loadingBehavior is set to "incremental", ensureVisible might not work for those items that the ListView hasn't loaded yet. You can force the ListView to load more items by calling loadMorePages. The ensureVisible method always works when the loadingBehavior is "randomaccess".
Calling ensureVisible when the ListView is hidden has no effect.
Minimum WinJS version