public void ShowErrorTooltip(FrameworkElement attachTo, UIElement errorElement)
{
if (attachTo == null)
{
throw new ArgumentNullException("attachTo");
}
if (errorElement == null)
{
throw new ArgumentNullException("errorElement");
}
AttachedErrorBalloon b = new AttachedErrorBalloon(attachTo, errorElement);
Point pos = attachTo.PointToScreen(new Point(0, attachTo.ActualHeight));
b.Left = pos.X;
b.Top = pos.Y - 8;
b.Focusable = false;
ITopLevelWindowService windowService = services.GetService <ITopLevelWindowService>();
ITopLevelWindow ownerWindow = (windowService != null) ? windowService.GetTopLevelWindow(attachTo) : null;
if (ownerWindow != null)
{
ownerWindow.SetOwner(b);
}
b.Show();
if (ownerWindow != null)
{
ownerWindow.Activate();
}
b.AttachEvents();
}
