title: ListView inserted item's index
body: <p>I have a ListView and sorting is enabled, once I insert an item, how do I get that item's index?</p>
  
  <p>I can use the ListViewItem returned by the Add method of ListView, but is its index before sort or after? And is it updated if it is sorted again? Like if I store the ListViewItem and the ListView is then sorted, will the ListViewItem I stored earlier, its Index property would be updated too?</p>