How to Print the data of the OlapGrid Control

 
class OlapGridPrintDocument: IPrintDocument
    {
        private OlapGrid olapGrid;
        private IGridPrintPaginator gridPaginator;
        
        /// <summary>
        /// A constructor that initializes the print pages with olap grid view.
        /// </summary>
        /// <param name="grid">OlapGridControl</param>
        public OlapGridPrintDocument(OlapGrid grid)
        {
            this.olapGrid = grid;
            gridPaginator = this.olapGrid.InternalGrid.Model.ActiveGridView as IGridPrintPaginator;
        }
 
        #region IPrintDocument members
        /// <summary>
        /// A method that returns print visual of the respective page.
        /// </summary>
        /// <param name="pageNo">page number</param>
        /// <returns>FrameworkElement</returns>
        public FrameworkElement GetPage(int pageNo)
        {
            FrameworkElement element = gridPaginator.GetPrintVisualAt(pageNo, this.PageSize);
            return element;
        }
 
        /// <summary>
        /// Gets or sets the thickness of outer border of framework element.
        /// </summary>
        public Thickness Margin
        {
            get;
            set;
        }
 
        /// <summary>
        /// A method that sets the size of print page and count of total pages.
        /// </summary>
        public void OnSetPageSize()
        {
            this.gridPaginator.SetPrintPageSize(this.PrintablePageSize);
            this.TotalPages = this.gridPaginator.GetPrintTotalPageCount(this.PrintablePageSize);
        }
 
        /// <summary>
        /// Gets or sets the size of the print page.
        /// </summary>
        public Size PageSize
        {
            get;
            set;
        }
 
        /// <summary>
        /// Gets or sets the client size of the print page.
        /// </summary>
        public Size PrintablePageSize
        {
            get;
            set;
        }
 
        /// <summary>
        /// Gets or sets the total pages to print.
        /// </summary>
        public int TotalPages
        {
            get;
            set;
        }
        #endregion
    }

 
public MainWindow()
        {
            ViewModel.ViewModel.ConnectionString = this.GetConnectionString();
            InitializeComponent();
        }
        public void btnPrint_Click(object sender, RoutedEventArgs e)
        {
            Window printWindow = new Window();
            olapGrid1.InternalGrid.PrintRange = GridRangeInfo.Table();
            OlapGridPrintDocument printDocument = new OlapGridPrintDocument(olapGrid1);
            printDocument.Margin = new Thickness(20);
            PrintPreviewControl navigationControl = new PrintPreviewControl(printDocument);
            navigationControl.HeaderTemplate = null;
            navigationControl.FooterTemplate = null;
            printWindow.Title = "Print Preview";
            printWindow.Content = navigationControl;
            printWindow.ShowDialog();
        }