private static void OnAttachPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
if ((bool)e.NewValue)
{
d.SetValue(TextBlockToolTipPropertyKey, TextBlockTooltipAttachment.Attach((TextBlock)d, null));
}
else
{
var attached = d.GetValue(TextBlockToolTipPropertyKey.DependencyProperty) as TextBlockTooltipAttachment;
if (attached != null)
{
attached.Dispose();
}
}
}
public static void Attach(TextBlock tb, FrameworkElement parent)
{
TextBlockTooltipAttachment.Attach(tb, parent);
}