/// <summary>
        /// Set the Contact Edit form dominant on a single screen and enable the back button.
        /// </summary>
        public void SetDisplayViewDominant()
        {
            MainView.Pane1Length           = ZeroStarGridLength;
            MainView.Pane2Length           = OneStarGridLength;
            MainView.PanePriority          = MUXC.TwoPaneViewPriority.Pane2;
            CurrentDominantView            = DominantView.Display;
            MainView.WideModeConfiguration = MUXC.TwoPaneViewWideModeConfiguration.LeftRight;
            MainView.TallModeConfiguration = MUXC.TwoPaneViewTallModeConfiguration.TopBottom;

            BackButton.IsEnabled = true;
        }
        /// <summary>
        /// Set us up as single-pane and disable the back button.
        /// </summary>
        public void SetMainViewDominant()
        {
            MainView.Pane1Length           = OneStarGridLength;
            MainView.Pane2Length           = ZeroStarGridLength;
            MainView.PanePriority          = MUXC.TwoPaneViewPriority.Pane1;
            MainView.WideModeConfiguration = MUXC.TwoPaneViewWideModeConfiguration.SinglePane;
            MainView.TallModeConfiguration = MUXC.TwoPaneViewTallModeConfiguration.SinglePane;
            CurrentDominantView            = DominantView.Main;

            BackButton.IsEnabled = false;
        }