WPF DataGrid and DataTable, DataColumn and DataRow

using System.Data;
DataTable dt = new DataTable();
        DataColumn dc;
        DataRow dr;
        private void Window_Loaded(object sender, RoutedEventArgs e)
        {
            dc = new DataColumn("Name");
            dt.Columns.Add(dc);

            dc = new DataColumn("Blog");
            dt.Columns.Add(dc);

            dr = dt.NewRow();
            dr["Name"] = "Shalvin";
            dr["Blog"] = "ShalvinPD.blogspot.com";
            dt.Rows.Add(dr);

            dr = dt.NewRow();
            dr["Name"] = "Sunil";
            dr["Blog"] = "Sunil.blogspot.com";
            dt.Rows.Add(dr);

            LayoutRoot.DataContext = dt;
      
        }

<Grid Name="LayoutRoot">
  <DataGrid ItemsSource="{Binding}" AutoGenerateColumns="True" Height="200" HorizontalAlignment="Left" Margin="73,12,0,0" Name="dataGrid1" VerticalAlignment="Top" Width="200" />
</Grid>