im facing a small issue with xamchart control.

i have a datatable with two fields symbol and abs_value. i want to show the value of 'symbol' field as label on piechart but it displays the value of 'abs_value' field. im unable to find a property or method that cna help me do so.

the sample code is attached below :-

xaml

 <Window x:Class="InfraCharts.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525" xmlns:igCA="http://infragistics.com/Chart">
    <Grid ShowGridLines="True">
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="auto">
            </ColumnDefinition>
        </Grid.ColumnDefinitions>
        <Grid.RowDefinitions>
            <RowDefinition Height="auto">
            </RowDefinition>
        </Grid.RowDefinitions>
        <igCA:XamChart HorizontalAlignment="Left" Margin="5,5,5,5"
                       Grid.Column="0" Grid.Row="0"
                       Name="xamChart1" VerticalAlignment="Top">
        </igCA:XamChart>
    </Grid>
</Window>

xaml.cs

 public partial class MainWindow : Window
    {
        public DataTable model;

        public MainWindow()
        {
            InitializeComponent();
            SetModel();
            Setchart();
        }

        private void Setchart()
        {
            Marker marker = new Marker() { Type = MarkerType.None };
            xamChart1.Series.Add(new Infragistics.Windows.Chart.Series()
            {
                ChartType = Infragistics.Windows.Chart.ChartType.Pie,
                DataSource = model,
                DataMapping = "Value=abs_value;Label=symbol;ToolTip=abs_value",
                DataPointColor = Infragistics.Windows.Chart.DataPointColor.Different,
                Marker = marker
            });
           
            xamChart1.Legend.Visible = false;
            xamChart1.Refresh();
        }

        private void SetModel()
        {
            model = new DataTable();
            model.Columns.Add(new DataColumn { ColumnName = "symbol", DataType = typeof(String) });
            model.Columns.Add(new DataColumn { ColumnName = "abs_value", DataType = typeof(double) });
            model.Columns.Add(new DataColumn { ColumnName = "sym", DataType = typeof(String) });

            DataRow dr = model.NewRow();
            dr.ItemArray = new object[] { "A", 10000000.0, "A1" };
            model.Rows.Add(dr);

            dr = model.NewRow();
            dr.ItemArray = new object[] { "B", 20000000.0, "B1" };
            model.Rows.Add(dr);

            dr = model.NewRow();
            dr.ItemArray = new object[] { "C", 30000000.0, "C1" };
            model.Rows.Add(dr);

            dr = model.NewRow();
            dr.ItemArray = new object[] { "D", 40000000.0, "D1" };
            model.Rows.Add(dr);

            dr = model.NewRow();
            dr.ItemArray = new object[] { "E", 50000000.0, "E1" };
            model.Rows.Add(dr);

            dr = model.NewRow();
            dr.ItemArray = new object[] { "F", 60000000.0, "F1" };
            model.Rows.Add(dr);

            dr = model.NewRow();
            dr.ItemArray = new object[] { "G", 70000000.0, "G1" };
            model.Rows.Add(dr);
        }
    }

any help to resolve it would be very useful. i think im making a small mistake but im unable to find good sample or documentation so i am posting this issue.

thanks in advance.