[Solved] ASP.Net iTextSharp Error: retrieve.file.from.nothing

Hello

I am experiencing error in my attempt to convert HTML to PDF. Although I left it a bit to learn other things.

I got this error, after adding the latest iTextSharp.dll and my stylehseet (style2.css)

C#

    protected void Button2_Click(object sender, EventArgs e)
    {
        StringWriter sw = new StringWriter();
        HtmlTextWriter hw = new HtmlTextWriter(sw);
        Panel1.RenderControl(hw);
        StringReader sr = new StringReader(sw.ToString());
        Document pdfDoc = new Document();
        PdfWriter PdfWriter = PdfWriter.GetInstance(pdfDoc, Response.OutputStream);
        HtmlPipelineContext htmlContext = new HtmlPipelineContext(null);
        htmlContext.SetTagFactory(Tags.GetHtmlTagProcessorFactory());
        ICSSResolver cssResolver = XMLWorkerHelper.GetInstance().GetDefaultCssResolver(false);
        cssResolver.AddCssFile(Server.MapPath("~/style2.css"), true);
        IPipeline pipeline = new CssResolverPipeline(cssResolver, new HtmlPipeline(htmlContext, new PdfWriterPipeline(pdfDoc, PdfWriter)));
        var worker = new XMLWorker(pipeline, true);
        var xmlParse = new XMLParser(true, worker);
        pdfDoc.Open();
        xmlParse.Parse(sr);
        xmlParse.Flush();
        pdfDoc.Close();
        Response.ContentType = "application/pdf";
        Response.AddHeader("content-disposition", "attachment;filename=Panel.pdf");
        Response.Cache.SetCacheability(HttpCacheability.NoCache);
        Response.Write(pdfDoc);
        Response.End();
    }