Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

Control 'GridView1' of type 'GridView' must be placed inside a form tag with runat=server.

Posted on 2006-10-19
5
Medium Priority
?
8,518 Views
Last Modified: 2013-12-03
Hi,

I am getting the following error:

Control 'GridView1' of type 'GridView' must be placed inside a form tag with runat=server.

below is the code:

protected void Page_Load(object sender, EventArgs e)
    {
        System.IO.StringWriter tw = new System.IO.StringWriter();
        System.Web.UI.HtmlTextWriter hw = new System.Web.UI.HtmlTextWriter(tw);

        DataBridge.PrismPanc pp = new PrismPanc();
        System.Data.DataTable dtExport = pp.GetTodaysData();
        GridView1.DataSource = dtExport;
        GridView1.DataBind();

        Excel.Application oXl;
        Excel._Workbook oWb;
        Excel._Worksheet oSheet;

        hw.WriteLine("<b><u><font size='5'>" +
            "Report for the Fiscal year: </font></u></b>");
        hw.WriteLine("<br>&mp;nbsp;");

        GridView1.HeaderStyle.Font.Bold = true;
        GridView1.DataBind();
        GridView1.RenderControl(hw);   //<-----generating the above error message

        // Write the HTML back to the browser.
        Response.ContentType = "application/vnd.ms-excel";
        this.EnableViewState = false;
        Response.Write(tw.ToString());
        Response.End();
0
Comment
Question by:brdrok
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
5 Comments
 
LVL 10

Expert Comment

by:gangwisch
ID: 17769538
you need to post your designer code but must likely you need to have it in this format
<form runat="server">
<asp:gridview>...
</form>
0
 
LVL 7

Author Comment

by:brdrok
ID: 17769577
<%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Default.aspx.cs" Inherits="_Default" %>

<!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 Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        &nbsp;</div>
        <asp:GridView ID="GridView1" runat="server" Height="263px" Width="633px">
        </asp:GridView>
    </form>
</body>
</html>

The GridView is within the <form...> and </form> tags.
0
 
LVL 20

Accepted Solution

by:
brwwiggins earned 2000 total points
ID: 17770008
0
 
LVL 12

Expert Comment

by:craskin
ID: 17770476
you're databinding gridview1 twice.
0
 
LVL 7

Author Comment

by:brdrok
ID: 17772967
I am not exactly sure what this whole enableEventValidation bit is all about but turning it to false seems to do the trick.  

enableEventValidation ="false"
0

Featured Post

Concerto Cloud for Software Providers & ISVs

Can Concerto Cloud Services help you focus on evolving your application offerings, while delivering the best cloud experience to your customers? From DevOps to revenue models and customer support, the answer is yes!

Learn how Concerto can help you.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Just a quick little trick I learned recently.  Now that I'm using jQuery with abandon in my asp.net applications, I have grown tired of the following syntax:      (CODE) I suppose it just offends my sense of decency to put inline VBScript on a…
Problem Hi all,    While many today have fast Internet connection, there are many still who do not, or are connecting through devices with a slower connect, so light web pages and fast load times are still popular.    If your ASP.NET page …
Excel styles will make formatting consistent and let you apply and change formatting faster. In this tutorial, you'll learn how to use Excel's built-in styles, how to modify styles, and how to create your own. You'll also learn how to use your custo…
If you’ve ever visited a web page and noticed a cool font that you really liked the look of, but couldn’t figure out which font it was so that you could use it for your own work, then this video is for you! In this Micro Tutorial, you'll learn yo…

705 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question