A page can have only one server-side Form tag.
I am generatiing bill in pdf. all is working fine but if i click the export to pdf button it throws the following error.A page can have only one server-side Form tag.
my aspx code:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="QuotationBill.aspx.cs" Inherits="QuotationBill" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" >
<div>
<legend>Bind and Export GridView data to PDF in asp.net</legend>
<table>
<tr>
<td>
<asp:GridView ID="cgv" runat="server" AllowPaging="True" AutoGenerateColumns="False"
GridLines="None" Width="100%" CellPadding="4" ForeColor="#333333" ShowHeader="false">
<AlternatingRowStyle BackColor="White" ForeColor="#284775" />
<Columns>
<asp:TemplateField>
<ItemTemplate >
<table style="padding-left:170px;">
<tr>
<td>
<asp:Label ID="Label1" Text="DATE" runat="server" Font-Bold="true"></asp:Label>
<span style="float:right">: </span>
</td>
<td>
<asp:Label ID="Label2" Text='<%#Eval("QuotationDate") %>' runat="server" Font-Bold="true" ForeColor="#000000"></asp:Label>
</td>
<td style="padding-left:70px;">
<asp:Label ID="Label66" Text="Station" runat="server" Font-Bold="true"></asp:Label>
<span style="float:none">: </span>
<asp:Label ID="Label68" Text="Banglore" runat="server" Font-Bold="true" ForeColor="#000000"></asp:Label>
</td>
</tr>
</table>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<EditRowStyle BackColor="#999999" />
<FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
<HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
<RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
<SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />
</asp:GridView>
</td>
</tr>
<tr>
<td>
<asp:Button ID="btnExportToPdf" runat="server" Text="Export To PDF File" OnClick="btnExportToPdf_Click" />
</td>
</tr>
</table>
</div>
</form>
</body>
</html>
M C# code :
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data.Sql;
using System.Data;
using System.Configuration;
using System.IO;
using System.Text;
using iTextSharp.text;
using iTextSharp.text.pdf;
using iTextSharp.text.html.simpleparser;
using System.Net;
using System.Net.Mail;
using System.Web.UI.HtmlControls;
public override void VerifyRenderingInServerForm(Control control)
{
//It solves the error "Control 'GridView1' of type 'GridView' must be placed inside a form tag with runat=server."
}
protected void btnExportToPdf_Click(object sender, EventArgs e)
{
try
{
Response.ClearContent();
Response.ContentType = "application/pdf";
Response.AddHeader("content-disposition", "attachment;filename=MyPdfFile.pdf");
Response.Cache.SetCacheability(HttpCacheability.NoCache);
StringWriter strWrite = new StringWriter();
HtmlTextWriter htmWrite = new HtmlTextWriter(strWrite);
HtmlForm frm = new HtmlForm();
grEmp.Parent.Controls.Add(frm);
frm.Attributes["runat"] = "server";
frm.Controls.Add(grEmp);
frm.RenderControl(htmWrite);
StringReader sr = new StringReader(strWrite.ToString());
Document pdfDoc = new Document(PageSize.A4, 8f, 8f, 8f, 2f);
HTMLWorker htmlparser = new HTMLWorker(pdfDoc);
PdfWriter.GetInstance(pdfDoc, Response.OutputStream);
pdfDoc.Open();
htmlparser.Parse(sr);
pdfDoc.Close();
Response.Write(pdfDoc);
Response.Flush();
Response.End();
}
catch (Exception ex) { }
}
in this line
htmlparser.Parse(sr);
also throw this error
Unable to cast object of type 'iTextSharp.text.html.simpleparser.CellWrapper' to type 'iTextSharp.text.html.simpleparser.TableWrapper'.
i cant able to resolve this error . i get confused.
So plaese help mr to i am resolve the error
Thanking you.
Paul.S