static void OnValidationChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
        {
            ValidationControl me = sender as ValidationControl;

            if (me != null)
            {
                //ValidationObject newobj = e.NewValue as ValidationObject;
                //ValidationObject oldobj = e.OldValue as ValidationObject;
            }
        }
        static void OnInnerContentChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
        {
            ValidationControl me = sender as ValidationControl;

            if (me != null)
            {
                if (me.cc.Content == null)
                {
                    me.cc.Content = me.InnerContent;
                }
            }
        }