Tuesday, April 17, 2012

Export Html to Pdf using iTextSharp(GridView)


<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Pdf.aspx.cs" Inherits="Pdf" %>

DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Untitled Pagetitle>
head>
<body>
<form id="form1" runat="server">
  <div>
      <asp:GridView ID="GridView1" runat="server">
      asp:GridView>
      <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Pdf" />div>
form>
body>
html>



using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using iTextSharp.text;
using iTextSharp.text.pdf;
using System.IO;
using iTextSharp.text.html;

public partial class Pdf : MyPage
{
protected void Page_Load(object sender, EventArgs e)
{
    if (!IsPostBack)
    {
        GridView1.DataSource = GetData();
        GridView1.DataBind();
    }

}
protected void Button1_Click(object sender, EventArgs e)
{
    MyPage tmpPage = new MyPage();
    HtmlForm form = new HtmlForm();
    form.Controls.Add(GridView1);
    tmpPage.Controls.Add(form);
    StringWriter sw = new StringWriter();
    HtmlTextWriter htmlWriter = new HtmlTextWriter(sw);
    form.Controls[0].RenderControl(htmlWriter);
    string htmlContent = sw.ToString();
    Document document = new Document();
    // step 2:
    // we create a writer that listens to the document
    // and directs a PDF-stream to a file
    PdfWriter.GetInstance(document, new FileStream("c:\\Chap0101.pdf", FileMode.Create));

    // step 3: we open the document
    document.Open();

    // step 4: we add a paragraph to the document
    //document.Add(new Paragraph(htmlContent.ToString()));

    System.Xml.XmlTextReader _xmlr = new System.Xml.XmlTextReader(new StringReader(htmlContent));

    HtmlParser.Parse(document, _xmlr);

    // step 5: we close the document
    document.Close();

    ShowPdf("c:\\Chap0101.pdf");

}

private void ShowPdf(string s)
{
    Response.ClearContent();
    Response.ClearHeaders();
    Response.AddHeader("Content-Disposition", "inline;filename=" + s);
    Response.ContentType = "application/pdf";
    Response.WriteFile(s);
    Response.Flush();
    Response.Clear();
}
public DataSet GetData()
{
    DataSet ds = new DataSet();
    DataTable dt = new DataTable("Product");
    DataRow dr;
    dt.Columns.Add(new DataColumn("Price", typeof(Int32)));
    dt.Columns.Add(new DataColumn("DisCount", typeof(Int32)));
    dt.Columns.Add(new DataColumn("SellPrice", typeof(Int32)));
    for (int i = 1; i <= 10; i++)
    {
        dr = dt.NewRow();
        dr[0] = i;
        dr[1] = i * 2;
        dr[2] = 1 * 3;
        dt.Rows.Add(dr);
    }
    ds.Tables.Add(dt);
    Session["dt"] = dt;
    return ds;
}
}
*Create a new clas Mypage.cs in app_code folder.
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

/// 
/// Summary description for MyPage
/// 
public class MyPage : Page
{
 public override void VerifyRenderingInServerForm(Control control)
 {
     GridView grid = control as GridView;
     if (grid != null && grid.ID == "GridView1")
         return;
     else
         base.VerifyRenderingInServerForm(control);

 }
}



More information visit:
how-to-export-content-of-gridview-to.html

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