ITEXTSHARP HEADEARS AND EVENTS

Question

Hello,

I have an application that uses the libraries itextsharp. And use events to generate the header. Works fine. Except on the last page of the pdf that does not put you and adds it to the last line (overrides )????. Any ideas?. Thank

El código:

public class GestionPDF
{
    String titulo;
    public GestionPDF()
    {
        //
        // TODO: Agregar aquí la lógica del constructor
        //
    }

    // add a table to the PDF document
    public PdfPTable TablePDF(DataTable tabla)
    {

        string[] col;

        col = new string[tabla.Columns.Count];

        int k = 0;

        foreach (DataColumn cl in tabla.Columns)
        {
            col[k] = cl.ColumnName;
            ++k;
        }   

        PdfPTable table = new PdfPTable(tabla.Columns.Count);

        table.WidthPercentage = 100;

        table.SpacingBefore = 10;

        for (int i = 0; i < col.Length; ++i)
        {
            PdfPCell cell = new PdfPCell(new Phrase(col[i]));
            cell.BackgroundColor = new BaseColor(204, 204, 204);
            table.AddCell(cell);
        }


        foreach (DataRow row in tabla.Rows)
        {
            foreach (DataColumn cl in tabla.Columns)
            {
                table.AddCell(row[cl].ToString());
            }
        }

        return table;
    }
}

public class itsEvents : PdfPageEventHelper
{
        private String _Header;

        public String Header
        {
           get { return _Header; }

           set { _Header = value; }
        }

        public override void OnStartPage(PdfWriter writer, Document document)
        {
                Paragraph p = new Paragraph(Header + " " + DateTime.Now.ToString() + "  " + writer.PageNumber);
                p.SpacingBefore = 10;
                document.Add(p);

        }
}


protected void Write()
{
    MemoryStream m = new MemoryStream();
    Document doc = new Document();
    doc.SetMargins(50,20,30,30);
    try
    {
        Response.ContentType = "application/pdf";
        PdfWriter writer = PdfWriter.GetInstance(doc, m);
        writer.CloseStream = false;
        itsEvents ev = new itsEvents();
        writer.PageEvent = ev;
        ev.Header = insstr;
        doc.Open();
        PdfPTable tabla = gpdf.TablePDF(Adjudicatarios);
        tabla.SetWidths(new Single[] {20,20,20,10,10,20,10,100,20,30});
        doc.Add(tabla);
        doc.Close();

    }
    catch (DocumentException ex)
    {
        Console.Error.WriteLine(ex.StackTrace);
        Console.Error.WriteLine(ex.Message);
    }

    // step 6: Write pdf bytes to outputstream
    Response.OutputStream.Write(m.GetBuffer(), 0, m.GetBuffer().Length);
    Response.OutputStream.Flush();
    Response.OutputStream.Close();
    m.Close();
}