In this article we will know how to export gridview data to pdf format. For that we need itextsharp.dll file. Get it from

http://sourceforge.net/projects/itextsharp/
Table structure
Tabble-in-SQL-Server.gif
First add the itextsharp.dll file into the application as click solution explorer- Right click on your application file-Add reference-On browse tab search the itextsharp.dll file from your computer-Click ok-Finish. Then you will notice that a Bin folder will be created where you will find itextsharp.dll file present inside that folder.
Default.aspx code
  1. <%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="_Default" %>
  2. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  3. <html xmlns="http://www.w3.org/1999/xhtml">
  4. <head runat="server">
  5. <title>Untitled Page</title>
  6. </head>
  7. <body>
  8. <form id="form1" runat="server">
  9. <div>
  10. </div>
  11. <asp:GridView ID="GridView1" runat="server" BackColor="#FFFF99"
  12. Font-Bold="True" ForeColor="Red">
  13. <HeaderStyle BackColor="#66FFFF" Font-Bold="True" ForeColor="#CC3300" />
  14. <AlternatingRowStyle BackColor="#FFCC99" />
  15. </asp:GridView>
  16. <asp:Button ID="Button1" runat="server" Text="Export to Pdf" />
  17. </form>
  18. </body>
  19. </html>
Default.aspx.vb code
  1. Imports System.Data
  2. Imports System.Data.SqlClient
  3. Imports iTextSharp.text.pdf
  4. Imports iTextSharp.text.html
  5. Imports iTextSharp.text.html.simpleparser
  6. Imports System.IO
  7. Imports iTextSharp.text
  8. Partial Class _Default
  9. Inherits System.Web.UI.Page
  10. Dim strConnString As String = System.Configuration.ConfigurationManager.ConnectionStrings.Item("ConnectionString").ToString()
  11. Dim con As New SqlConnection(strConnString)
  12. Dim str As String
  13. Dim com As SqlCommand
  14. Dim sqlda As SqlDataAdapter
  15. Dim ds As DataSet
  16. Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
  17. con.Open()
  18. str = "select * from student"
  19. com = New SqlCommand(Str, con)
  20. Dim reader As SqlDataReader
  21. reader = com.ExecuteReader()
  22. GridView1.DataSource = reader
  23. GridView1.DataBind()
  24. con.Close()
  25. End Sub
  26. Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
  27. Response.Clear()
  28. Response.Buffer = True
  29. Response.ContentType = "application/pdf"
  30. Response.AddHeader("content-disposition", "attachment;filename=student.pdf")
  31. Response.Cache.SetCacheability(HttpCacheability.NoCache)
  32. Dim StringWriter1 As New StringWriter()
  33. Dim HtmlTextWriter1 As New HtmlTextWriter(StringWriter1)
  34. GridView1.RenderControl(HtmlTextWriter1)
  35. Dim StringReader1 As New StringReader(StringWriter1.ToString())
  36. Dim newDocument As New Document(PageSize.A4, 7.0F, 7.0F, 7.0F, 7.0F)
  37. Dim HTMLWorker1 As New HTMLWorker(newDocument)
  38. PdfWriter.GetInstance(newDocument, Response.OutputStream)
  39. newDocument.Open()
  40. HTMLWorker1.Parse(StringReader1)
  41. newDocument.Close()
  42. Response.Write(newDocument)
  43. Response.End()
  44. End Sub
  45. Public Overrides Sub VerifyRenderingInServerForm(ByVal control As Control
  46. End Sub
  47. End Class
Output
Export-to-PDF-in-VB.net.gif