How to set the customized adornment information for the OLAP Chart series?

public partial class MainPage : UserControl
    {
        private IOlapDataProvider dataProvider;
        public object OlapDataManager;
        public MainPage()
        {
            InitializeComponent();
            InitializeConnection();
            this.olapChart1.OnDataRefreshCompleted += new OlapChart.DataRefreshCompleted(olapChart1_OnDataRefreshCompleted);
        }
        private void InitializeConnection()
        {
            Binding customBinding = new CustomBinding(new BinaryMessageEncodingBindingElement(), new HttpTransportBindingElement { MaxReceivedMessageSize = 2147483647 });
            EndpointAddress address = new EndpointAddress("http://bi.syncfusion.com/OlapWcfProject/Services/OlapManager.svc/binary");
            ChannelFactory<IOlapDataProvider> clientChannel = new ChannelFactory<IOlapDataProvider>(customBinding, address);
            dataProvider = clientChannel.CreateChannel();
            OlapDataManager olapDataManager = new OlapDataManager();
            olapDataManager.DataProvider = dataProvider;
            olapDataManager.SetCurrentReport(CreateOlapReport());
            this.OlapDataManager = olapDataManager;
        }
void olapChart1_OnDataRefreshCompleted(object sender, Syncfusion.Silverlight.Chart.Olap.DataRefreshCompletedEventArgs e)
        {
            ChartAdornmentInfo adornment1 = new ChartAdornmentInfo();
            adornment1.Visible = true;
            adornment1.Symbol = Symbol.Square;
            adornment1.SymbolInterior = new SolidColorBrush(Colors.Orange);
            adornment1.SymbolWidth = 10;
            adornment1.SymbolHeight = 10;
            this.olapChart1.OlapArea.Series[0].AdornmentsInfo = adornment1;
        }

Partial Public Class MainPage
    Inherits UserControl
    Private dataProvider As IOlapDataProvider
    Public OlapDataManager As Object
    Public Sub New()
        InitializeComponent()
        InitializeConnection()
                Me.olapChart1.OnDataRefreshCompleted += New OlapChart.DataRefreshCompleted(olapChart1_OnDataRefreshCompleted)
    End Sub
    Private Sub InitializeConnection()
            Binding customBinding = New CustomBinding(New BinaryMessageEncodingBindingElement(), New HttpTransportBindingElement 
            {
        MaxReceivedMessageSize = 2147483647
            }
)
        Dim address As EndpointAddress = New EndpointAddress("http://bi.syncfusion.com/OlapWcfProject/Services/OlapManager.svc/binary")
            Dim clientChannel As ChannelFactory<IOlapDataProvider> =  New ChannelFactory<IOlapDataProvider>(customBinding,address) 
        dataProvider = clientChannel.CreateChannel()
        Dim olapDataManager As OlapDataManager = New OlapDataManager()
        olapDataManager.DataProvider = dataProvider
        olapDataManager.SetCurrentReport(CreateOlapReport())
        Me.OlapDataManager = olapDataManager
    End Sub
Private Sub olapChart1_OnDataRefreshCompleted(ByVal sender As Object, ByVal e As Syncfusion.Silverlight.Chart.Olap.DataRefreshCompletedEventArgs)
        Dim adornment1 As ChartAdornmentInfo = New ChartAdornmentInfo()
        adornment1.Visible = True
        adornment1.Symbol = Symbol.Square
        adornment1.SymbolInterior = New SolidColorBrush(Colors.Orange)
        adornment1.SymbolWidth = 10
        adornment1.SymbolHeight = 10
        Me.olapChart1.OlapArea.Series(0).AdornmentsInfo = adornment1
    End Sub