tabcontrol and listview content - selecting the currently selected tab's listview

I've got a TabControl with several tabs and datatemplated listviews inside of them.  I want to gain access to the listview (and scroll it to the top, I already know how to do that).  The code I have gives me the listview of the tab that was selected before I clicked on the new tab.  Any help would be awesome!

Here's what I have so far (Code attached to the SelectionChanged event of the TabControl).

private void Selector_OnSelectionChanged(object sender, SelectionChangedEventArgs e)
{
	if (!(e.OriginalSource is TabControl)) return;
	var contPres = FindVisualChild<ContentPresenter>(InspectionTabMain);

	var tc = e.OriginalSource as TabControl;

	var dataTemplate = contPres.ContentTemplate;
	if (dataTemplate == null) return;
	var lsv = (ListView)dataTemplate.FindName("ComponentDtls", contPres);
	if (lsv.Items != null && lsv.Items.Count > 0)
	{
		Console.WriteLine(lsv.Items.Count);
		lsv.ScrollIntoView(lsv.Items[0]);
	}
}