ItextSharp错误：文档在asp.net中没有页面 [英] ItextSharp Error : Document has no pages, in asp.net

问题描述

大家好，



i尝试使用c＃将转发器数据导出到asp.net中的pdf，



在转发器中我也有网络用户控件。



导出这个，我使用的是itextshare.dll

Hi guys,

i was trying to export repeater data to pdf in asp.net using c#,

where in a repeater i have web user controls also.

to export this, i'm using itextshare.dll

using System.IO;
using iTextSharp.text;
using iTextSharp.text.pdf;
using iTextSharp.text.html;
using iTextSharp.text.html.simpleparser;
using System.Text;


protected void btnExport_Click(object sender, ImageClickEventArgs e)
        {
            Response.ContentType = "application/pdf";
            Response.AddHeader("content-disposition", "attachment;filename=FileName.pdf");
            Response.Cache.SetCacheability(HttpCacheability.NoCache);
            StringWriter sw = new StringWriter();
            HtmlTextWriter hw = new HtmlTextWriter(sw);
            DailyReportRepeater.DataBind();
            DailyReportRepeater.RenderControl(hw);
            StringReader sr = new StringReader(sw.ToString());
            Document pdfDoc = new Document(PageSize.A4, 10f, 10f, 10f, 0f);
            HTMLWorker htmlparser = new HTMLWorker(pdfDoc);
            PdfWriter.GetInstance(pdfDoc, Response.OutputStream);
            pdfDoc.Open();
            htmlparser.Parse(sr);
            pdfDoc.Close();//the doc has no pages... Error
            Response.Write(pdfDoc);
            Response.End(); 
        }

尝试：

trying:

i have already bind the repeater in the pageload, if(!ispostback).

....
in btnexport code:

i have commented //  DailyReportRepeater.DataBind();
n then checked the repeater count n it was greater than zero

            int c = DailyReportRepeater.Items.Count;
,
but if i uncommented this line ' DailyReportRepeater.DataBind();'
then the count is getting zero.

the problem is in binding of a repeater.

任何人都可以帮我解决这个问题。





谢谢

can anyone please help me to solve this issue.


Thanks

推荐答案

Hi


试试这个，



Response.ContentType =application / pdf;



Response.AddHeader（content-disposition，attachment; filename = FileName.pdf）;



Response.Cache.SetCacheability（HttpCacheability.NoCache）;



StringWriter sw = new StringWriter（）;



HtmlTextWriter hw = new HtmlTextWriter（sw）;



DailyReportRepeater.DataBind（）;



DailyReportRepeater.RenderControl（hw）;



StringReader sr = new StringReader（sw.ToString（））;



文件pdfDoc =新文件（PageSize.A4,10f，10f ，10f，0f）;



HTMLWorker htmlparser = new HTMLWorker（pdfDoc）;



PdfWriter writer = PdfWriter.GetInstance（pdfDoc，Response.OutputStream）;



pdfDoc.Open（）;



htmlparser.Parse（sr）;



pdfDoc.Close（）; //文档没有页面...错误< br $>


Response.Write（pdfDoc）;



这是我用来写出表格的代码它有帮助



iTextSharp.text.Document doc = new iTextSharp.text.Document（）;



iTextSharp.text.pdf.PdfWriter writer = iTextSharp.text.pdf.PdfWriter.GetInstance（doc，new FileStream（System.Web.HttpContext.Current.Server.MapPath（\\）+file.pdf， FileMode.Create））;



doc.Open（）;



iTextSharp.text.pdf。 PdfPTable Table = new iTextSharp.text.pdf.PdfPTable（2）;

Table.DefaultCell.Border = 0;



doc.Add （表）;



doc.Close（）;

Hi
Try this,

Response.ContentType = "application/pdf";

Response.AddHeader("content-disposition", "attachment;filename=FileName.pdf");

Response.Cache.SetCacheability(HttpCacheability.NoCache);

StringWriter sw = new StringWriter();

HtmlTextWriter hw = new HtmlTextWriter(sw);

DailyReportRepeater.DataBind();

DailyReportRepeater.RenderControl(hw);

StringReader sr = new StringReader(sw.ToString());

Document pdfDoc = new Document(PageSize.A4, 10f, 10f, 10f, 0f);

HTMLWorker htmlparser = new HTMLWorker(pdfDoc);

PdfWriter writer = PdfWriter.GetInstance(pdfDoc, Response.OutputStream);

pdfDoc.Open();

htmlparser.Parse(sr);

pdfDoc.Close();//the doc has no pages... Error

Response.Write(pdfDoc);

Here is code I have used to write out a table if it helps

iTextSharp.text.Document doc = new iTextSharp.text.Document();

iTextSharp.text.pdf.PdfWriter writer = iTextSharp.text.pdf.PdfWriter.GetInstance(doc, new FileStream(System.Web.HttpContext.Current.Server.MapPath("\\") + "file.pdf", FileMode.Create));

doc.Open();

iTextSharp.text.pdf.PdfPTable Table = new iTextSharp.text.pdf.PdfPTable(2);
Table.DefaultCell.Border = 0;

doc.Add(Table);

doc.Close();

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