private static void OnDescriptionChangedCallBack(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            InfoPane dp = d as InfoPane;

            if (dp != null)
            {
                dp.updateDescription();
            }
        }
        private static void OnVisibilityChangedCallBack(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            InfoPane dp = d as InfoPane;

            if (dp != null)
            {
                dp.updateVisibilityState();
            }
        }
        private static void OnAlertContentChangedCallBack(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            InfoPane dp = d as InfoPane;

            if (dp != null)
            {
                dp.updateAlertContent();
            }
        }