void setRichAndFlowButton_Click(object sender, EventArgs e)
        {
            Template template1 = CreateTemplate(3, 21);
            AddPrintInfoCellColumnFooterSection(template1, 21);
            this.gcMultiRow1.Template = template1;
            gcMultiRow1.RowCount = 50;

            //All UI elements are printed, like UpDown button.
            gcMultiRow1.PrintSettings.PrintStyle = PrintStyle.Rich;
            //All rows are printed from first page to last page, one by one.
            gcMultiRow1.PrintSettings.PagingMode = PagingMode.Flow;
            //The GcMultiRow is aligned by MiddleLeft.
            gcMultiRow1.PrintSettings.Alignment = MultiRowContentAlignment.MiddleLeft;
            //Between every two Rows, there are 15 pixels.
            gcMultiRow1.PrintSettings.SectionMargin = 15;
            //Only the Row from 2th to 8th are printed
            gcMultiRow1.PrintSettings.PrintRange = MultiRowPrintRange.SomeRows;
            gcMultiRow1.PrintSettings.FromRow = 2;
            gcMultiRow1.PrintSettings.ToRow = 8;

            if (flag)
            {
                //The Template's width is less than page's width, set AutoFitWidth to true, the Template is zoomed out to fit the page's width.
                gcMultiRow1.PrintSettings.AutoFitWidth = true;
                flag = false;
            }
            else
            {
                gcMultiRow1.PrintSettings.AutoFitWidth = false;
                flag = true;
            }
            gcMultiRow1.PrintSettings.ZoomFactor = 1f;
            try
            {
                gcMultiRow1.PrintPreview();
                //If you have a printer, you can execute the following code directly.
                //gcMultiRow1.Print(true);
            }
            catch (Exception ex)
            {
                // Can't find printer driver.
                MessageBox.Show(ex.Message);
            }
            label.Text = "In Rich style, all elements will be printed, like UpDown button; Between two rows, 15 pixels space existed; Only  the 2th to 8th row are printed one by one from page's Top to Bottom; The GcMultiRow will be aligned by MiddleLeft; (Click the button again to view the AutoFitWidth property's effect)";
        }