Hello,
> Date: Mon, 7 Jun 2010 09:43:44 -0400
> From: michelleyzh...@gmail.com
> To: iText-questions@lists.sourceforge.net
> Subject: [iText-questions] question about table header and onOpenDocument
>
> In order to add a table as header, I mimic the code from:
> http://www.1t3xt.info/examples/browse/?page=example&id=395
You should follow Bruno's code a little better :)
> However, the result I got was not the same as the one on the website. The
> header and the footer only show once on the first page.
>
> Can anyone help?
>
> Below is my code:
>
> main.cs:
> protected void Button1_Click(object sender, EventArgs e)
> {
> string filename = Server.MapPath("Files/FO-CA-Cert-" + "Juarez" + "-G38-" +
> "4" + ".pdf");
>
> Document document = new Document(PageSize.A4, 50, 50, 50, 100);
>
> PdfWriter writer = PdfWriter.GetInstance(document, new FileStream(filename,
> FileMode.Create));
> document.Open();
>
>
> AddTableAsHeaderFooter addTableAsHeaderFooter = new AddTableAsHeaderFooter();
>From here...
> addTableAsHeaderFooter.onOpenDocument(writer, document);
> addTableAsHeaderFooter.OnStartPage(writer, document);
>
> addTableAsHeaderFooter.onEndPage(writer, document);
> addTableAsHeaderFooter.onCloseDocument(writer, document);
^^^^^^^^^^^^^
To above here is not needed. (not in the example code you referenced)
> writer.PageEvent = addTableAsHeaderFooter;
...
> AddTableAsHeaderFooter.cs:
Although C# is very similar to Java, there **are** some differences. The one
that got you here is the difference in how Java and C# use/implement virtual
methods.
When you're having problems like this I would suggest you take a look at the
iTextSharp source code, in some cases it's the best source of documentation.
> public class AddTableAsHeaderFooter : PdfPageEventHelper
>
> {
>
>
> public PdfTemplate tpl;
> public BaseFont helv;
> public PdfPTable headerTable;
Then you would have figured out that you need to override all
'OnXXX' (note capitalization) methods below here.
> public void onOpenDocument(PdfWriter writer, Document document)
> {
>
>
> // initializations
>
> tpl = writer.DirectContent.CreateTemplate(150, 18);
> Rectangle rect = new Rectangle(0, 0, 150, 18);
> rect.BackgroundColor = iTextSharp.text.BaseColor.GRAY;
> tpl.BoundingBox = rect;
>
> tpl.Rectangle(rect);
> helv = BaseFont.CreateFont("Helvetica", BaseFont.WINANSI, false);
> // header
> headerTable = new PdfPTable(1);
> PdfPCell cell = new PdfPCell(new Paragraph("Header Text"));
>
> headerTable.AddCell(cell);
>
> headerTable.TotalWidth = document.Right - document.Left;
> headerTable.LockedWidth = true;
> }
>
> public void onEndPage(PdfWriter writer, Document document)
> {
>
> // Header
> headerTable.WriteSelectedRows(0, -1, document.LeftMargin,
> document.Top + headerTable.TotalHeight,
> writer.DirectContent);
>
> // Footer
> PdfPTable footerTable = new PdfPTable(2);
> PdfPCell cell1 = new PdfPCell(new Phrase("page " + writer.PageNumber));
> footerTable.AddCell(cell1);
>
> PdfPCell cell2 = new PdfPCell(new Phrase("page " + writer.PageNumber + " of
> "));
> footerTable.AddCell(cell2);
> footerTable.TotalWidth = document.Right - document.Left;
>
> footerTable.WriteSelectedRows(0, -1, document.LeftMargin,
> document.BottomMargin, writer.DirectContent);
> }
>
> public void onCloseDocument(PdfWriter writer, Document document)
> {
> tpl.BeginText();
> tpl.SetFontAndSize(helv, 12);
> tpl.SetTextMatrix(2, 4);
> tpl.ShowText("Number of pages = " + (writer.PageNumber - 1));
> tpl.EndText();
> }
>
>
> }
HTH - keith
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