ArcGISWindowsPhoneSDK.MainPage.ShowMainMenu C# (CSharp) Method

        private void ShowMainMenu()
        {
            (ApplicationBar.Buttons[2] as IApplicationBarIconButton).IsEnabled = false;
            CategoryListGrid.Visibility = Visibility.Visible;
            ContentPanel.Visibility = Visibility.Collapsed;
            ListTitle.Visibility = Visibility.Collapsed;
        }