iTextSharp.text.pdf.PdfPTable.NormalizeHeadersFooters C# (CSharp) Метод

        public void NormalizeHeadersFooters()
        {
            if (footerRows > headerRows)
                footerRows = headerRows;
        }

        private void createPdfButton(object sender, EventArgs e)
        {

            string test = string.Format(textBox1.Text);
            if (test.Equals("")) 
                {
                    MessageBox.Show("Please enter a file name.", "Message", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                }
            else if( test.Contains("\\")||test.Equals("/"))
            {
                MessageBox.Show("Invalid character \\", "Message", MessageBoxButtons.OK, MessageBoxIcon.Warning);  
            }
                else if (!test.Equals(""))
                {
                    string name = string.Format(textBox2.Text);
           
               
                //ss = string.Format(name.FullName);
                if (File.Exists(name+"\\"+textBox1.Text+".pdf"))
                {
                    MessageBox.Show("File name must be unique.","Message",MessageBoxButtons.OK,MessageBoxIcon.Warning);
                }
                else
                {
                    try
                    {

                        string path = string.Format(textBox2.Text + "\\");
                        string fileName = path + test + ".pdf";
                        Document document = new Document(iTextSharp.text.PageSize.LETTER, 10, 10, 30, 10);
                        
                        PdfWriter writer = PdfWriter.GetInstance(document, new FileStream(fileName, FileMode.Create));
                        document.Open();
                        String st = Application.StartupPath;
                        st += "\\jj.jpg";
                        iTextSharp.text.Image png = iTextSharp.text.Image.GetInstance(st);
                        png.ScaleAbsolute(70,70);
                        png.SetAbsolutePosition(document.PageSize.Width -10f -340f,document.PageSize.Height -20f -50f);
                        document.Add(png);
                        Paragraph paragraph = new Paragraph("\n\n             Campuse Library \n   Islamic University,Kushtia-7003\n E-mail:[email protected]    \n Mobile:01913-540251,01740197701\n  " + "             Date:" + DateTime.Now.ToShortDateString());
                        paragraph.IndentationLeft = 200f;
                        document.Add(paragraph);
                        Paragraph p = new Paragraph(""+'\n');
                        document.Add(p);

                        PdfPTable table = new PdfPTable(dataGridView1.ColumnCount-1);
                        PdfPCell cell = new PdfPCell(new Phrase("Total Book Order", new iTextSharp.text.Font(iTextSharp.text.Font.NORMAL, 16f, iTextSharp.text.Font.NORMAL, iTextSharp.text.BaseColor.ORANGE)));
                        cell.BackgroundColor = new iTextSharp.text.BaseColor(200, 20, 120);
                        iTextSharp.text.Font fntTableFont = FontFactory.GetFont("Times New Roman", 8, iTextSharp.text.Font.NORMAL, BaseColor.BLACK);
                        table.WidthPercentage = 100;
                        table.HorizontalAlignment = 0;
                        table.SpacingAfter = 10;

                        cell.Colspan = dataGridView1.ColumnCount-1;
                        cell.HorizontalAlignment = 1;
                        table.AddCell(cell);

                        for (int i = 0; i < dataGridView1.ColumnCount-1; i++)
                        {
                            table.AddCell(new Phrase(dataGridView1.Columns[i].HeaderText));
                        }
                        table.HeaderRows = 1;
                        table.NormalizeHeadersFooters();
                        float[] widths = new float[] { 1f, 4f, 4.5f, 1.25f, 1f, 1.25f, 1.50f};
                        table.SetWidths(widths);

                        
                        for (int i = 0; i < dataGridView1.RowCount; i++)
                        {
                            for (int j = 0; j < dataGridView1.ColumnCount-1; j++)
                            {
                                if (dataGridView1[j, i].Value != null)
                                {
                                    PdfPCell CellOne = new PdfPCell(new Phrase(dataGridView1[j, i].Value.ToString(), fntTableFont));
                                   
                                    table.AddCell(CellOne);
                                }
                            }
                        }
                        document.Add(table);
                        int  sum = 0;

                        for (int i = 0; i < dataGridView1.Rows.Count;++i)
                        {
                          
                            sum += Convert.ToInt32(dataGridView1.Rows[i].Cells["Quantity"].Value);
                        }
                        Paragraph paragraph1 = new Paragraph("Total = " + sum + "  pices", new iTextSharp.text.Font(iTextSharp.text.Font.NORMAL, 12f, iTextSharp.text.Font.NORMAL, iTextSharp.text.BaseColor.BLACK));
                        paragraph1.IndentationLeft = 450f;
                        document.Add(paragraph1);
                        MessageBox.Show("Successfully Created pdf file.", "Message", MessageBoxButtons.OK, MessageBoxIcon.Information);
                        document.Close();
                        System.Diagnostics.Process.Start(path + test + ".pdf");
                    }
                    catch (Exception exception)
                    {

                        MessageBox.Show(exception.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    }
                }
            } 
                
               
            }