How to show or hide the Grid Lines in the OlapChart

 
 
public MainPage()
        {
            InitializeComponent();
            this.DataContext = new ViewModel.ViewModel();
            this.olapClient.Loaded += olapClient_Loaded;
        }
 
        void olapClient_Loaded(object sender, System.Windows.RoutedEventArgs e)
        {
            this.olapClient.OlapChart.Loaded += OlapChart_Loaded;
        }
 
        void OlapChart_Loaded(object sender, System.Windows.RoutedEventArgs e)
        {
            this.olapClient.OlapChart.OlapArea.PrimaryAxis.Loaded += PrimaryAxis_Loaded;
        }
 
        void PrimaryAxis_Loaded(object sender, System.Windows.RoutedEventArgs e)
        {
           this.olapClient.OlapChart.OlapArea.PrimaryAxis.ShowGridLines = false;
           this.olapClient.OlapChart.OlapArea.SecondaryAxis.ShowGridLines = false;
        }