static void AttachListView(BalloonPopup popup, Selector trigger)
{
trigger.SelectionChanged += delegate(object sender, SelectionChangedEventArgs e)
{
if (e.AddedItems.Count == 0) return;
if (popup.IsOpen) popup.TryClose();
var source = trigger.SelectedItem;
var selectedItem = (ListViewItem)trigger.ItemContainerGenerator.ContainerFromItem(source);
popup.PlacementTarget = selectedItem;
popup.TryOpen();
};
}
static void AttachButton(BalloonPopup popup, Button trigger)
{
Window owner = Window.GetWindow(trigger);
trigger.Click += delegate { popup.TryOpen(); };
if (owner != null)
{
owner.LocationChanged += delegate { popup.TryClose(); };
owner.SizeChanged += delegate { popup.TryClose(); };
}
}
