AnyPlace.MainPage.createAppBarMenuItem C# (CSharp) Method

        void createAppBarMenuItem()
        {
            if (ApplicationBar.MenuItems.Contains(menuitem))
                return;
            menuitem = new ApplicationBarMenuItem();
            ApplicationBar.MenuItems.Contains(menuitem);
            menuitem.Text = "refresh building";
            menuitem.Click += menuitem_Click;
            ApplicationBar.MenuItems.Add(menuitem);
        }