New menu item implementation based directly on MenuItem/ToggleMenuFlyoutItem

MapUiTools/WPF/MapMenuItem.WPF.cs

@@ -0,0 +1,18 @@
+using System.Collections.Generic;
+using System.Linq;
+using System.Windows.Controls;
+
+namespace MapControl.UiTools
+{
+    public class MapMenuItem : MenuItem
+    {
+        public string Text
+        {
+            get => Header as string;
+            set => Header = value;
+        }
+
+        protected IEnumerable<MapMenuItem> ParentMenuItems
+            => (Parent as ItemsControl)?.Items.OfType<MapMenuItem>();
+    }
+}