TextBox controls are not Working with Export To PDF(iTextSharp)

问题

I have an HTML form, which contains lables and textboxes.

After filling this form, it is exported to PDF.

All the label Texts are exported. But the textbox text is not exported to PDF.

Code

protected void btnExportPDF_Click(object sender, EventArgs e)
{
    Response.ContentType = "application/pdf";
    Response.AddHeader("content-disposition", "attachment;filename=DecForm.pdf");
    Response.Cache.SetCacheability(HttpCacheability.NoCache);
    StringWriter sw = new StringWriter();
    HtmlTextWriter hw = new HtmlTextWriter(sw);
    this.divToPdf.RenderControl(hw);
    StringReader sr = new StringReader(sw.ToString());
    Document pdfDoc = new Document(PageSize.A4, 10, 10, 2, 10);
    HTMLWorker htmlparser = new HTMLWorker(pdfDoc);
    PdfWriter.GetInstance(pdfDoc, Response.OutputStream);
    pdfDoc.Open();
    htmlparser.Parse(sr);
    pdfDoc.Close();
    Response.Write(pdfDoc);
    Response.End();
}

Why are the textbox text not exported through to PDF?

回答1:

I think that when you're rendering divToPDF you are getting a fresh cut of the html and it does not have the values there were populated on the page. You may want to look at using the divToPDF is you'll want to look at accessing the InnerHtml or OuterHtml property and use that.

回答2:

Try this.

List<IElement> elements = iTextSharp.text.html.simpleparser.HTMLWorker.ParseToList(new StringReader(htmlString), null);
//htmlString is your form html
foreach (IElement el in elements)
{
    pdfDoc.add(el);
}

来源：https://stackoverflow.com/questions/14850880/textbox-controls-are-not-working-with-export-to-pdfitextsharp