Control 'LeftNav1_lnkCore' of type 'LinkButton' must be placed inside a form tag with

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Control 'LeftNav1_lnkCore' of type 'LinkButton' must be placed inside a form tag with

 
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  #1
Jan 7th, 2009
Hi All,
I have an application that i m developing in VS2003 using asp.net and c#
in the left navigation page I need to add the functionality to open and close a panel in the left nav.
here is my code:
---->
asp.net Syntax (Toggle Plain Text) 
  1. <%@ Control Language="c#" AutoEventWireup="false" Codebehind="LeftNav.ascx.cs" Inherits="CE.userControls.LeftNav" TargetSchema="http://schemas.microsoft.com/intellisense/ie5" %>
  2. <td class="leftcolumn" valign="top">
  3. <div id="snav">
  4. 		<div class="subnav">
  5. 			<ul class='navlink'>
  6. 				<li class='navlink3'>
  7. 				<asp:LinkButton ID="lnkCore" Runat="server"  OnClick="lnkCore_Click" CausesValidation="False" > CCR
  8. 				</asp:LinkButton>	</li>
  9. 			</ul>
  10. 		</div>
  11.  
  12.  
  13. 	<asp:Panel ID="pnlCl"  Runat=server Visible="False">
  14. 	<%
  15. 	Response.Write ("<div class='subnav'><ul class='navlink'><li class='navlink'");
  16. 	int i=0;
  17. 		//for (int i=0;i<arrBlock.Count;i++)
  18. 		//{
  19. 			string gyr = "0";
  20. 			if (Convert.ToInt32(HttpContext.Current.Session["sesgyr"]) > 0)
  21. 			{gyr = HttpContext.Current.Session["sesgyr"].ToString().Trim();}
  22. 			//Response.Write ("<li class='navlink'>");
  23. 			//if (bcode==(i+1)) {Response.Write ("<img src='/CE/images/arrow.down.png'>");}
  24. 			//else {Response.Write ("<img src='/CE/images/arrow.right.png'>");}
  25. 			//Response.Write ("&nbsp;<a href='/CE/default.aspx?b="+(i+1).ToString().Trim()+"'>"+arrBlock[i]+"</a></li>");
  26. 			//if (bcode==(i+1))
  27. 			//{
  28. 				string ugr = HttpContext.Current.Session["sesusergroup"].ToString().Trim();
  29. 				Response.Write ("<div class='subnav'><ul class='navlink'>");
  30. 				for (int j=0;j<arrCoreBlock.Count;j++)
  31. 				{
  32. 					Response.Write ("<li class='navlink'><img src='/CE/images/arrow.right.png'>&nbsp;<font color=#00646E>"+arrCoreBlock[j]+"</font></li>");
  33. 					Response.Write ("<table><tr>");
  34. 					if (ugr!="CLINBLOCK1CCF" && ugr!="CLINBLOCK1MHMC" && ugr!="CLINBLOCK2CCF" && ugr!="CLINBLOCK2MHMC")
  35. 					{Response.Write ("<td bgcolor=#b0e0e6 border=1 bordercolor=#000000><a href='/CE/Components/blockCore.aspx?b=0&k="+(j+1).ToString().Trim()+"&h=1&y="+gyr+"'><font color=#00646E>UH/VA</font></a></td>");}
  36. 					if (ugr!="CLINBLOCK1CCF" && ugr!="CLINBLOCK1UH" && ugr!="CLINBLOCK2CCF" && ugr!="CLINBLOCK2UH")
  37. 					{Response.Write ("<td bgcolor=#f4a460 border=1 bordercolor=#000000><a href='/CE/Components/blockCore.aspx?b=0&k="+(j+1).ToString().Trim()+"&h=2&y="+gyr+"'><font color=#00646E>MHMC</font></a></td>");}
  38. 					if (ugr!="CLINBLOCK1UH" && ugr!="CLINBLOCK1MHMC" && ugr!="CLINBLOCK2UH" && ugr!="CLINBLOCK2MHMC")
  39. 					Response.Write ("<td bgcolor=#adff2f border=1 bordercolor=#000000><a href='/CE/Components/blockCore.aspx?b=0&k="+(j+1).ToString().Trim()+"&h=3&y="+gyr+"'><font color=#00646E>CCF</font></a></td>");
  40. 					Response.Write ("</tr></table>");
  41. 				}
  42. 				Response.Write ("</ul></div>");
  43. 			//}
  44. 		//}
  45. 		Response.Write ("</ul></div>");
  46. 		%>
  47. 		</asp:Panel>
  48.  
  49. 	<%
  50. 			Response.Write ("<hr>&nbsp;<img src='/CE/images/arrow.right.png'>");
  51. 			Response.Write ("&nbsp;<a href='/CE/components/cgTime.aspx'>Timeliness</a>");
  52. 				%>
  53. 		<br class="header3">
  54.  
  55. 	</div>
  56.  
  57. </td>
  58. <td id="tdMain">
  59. 	<div class="paddedwrapper1"></div>
-------<
When I click on the link button lnkCore, i want to expand (i.e make the panel pnlCL visible.)
But I get the following error message that "Control 'LeftNav1_lnkCore' of type 'LinkButton' must be placed inside a form tag with runat="server""
i have done similar thing in my other application, and I didnt face any problem, What could the problem be?
Please help me.. i have been at this since morning!!!!!
Thanks in advance
Last edited by peter_budo; Jan 11th, 2009 at 2:46 pm. Reason: Keep It Organized - For easy readability, always wrap programming code within posts in [code] (code blocks) and [icode] (inline code) tags.
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Re: Control 'LeftNav1_lnkCore' of type 'LinkButton' must be placed inside a form tag with

 
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  #2
Jan 7th, 2009
Every web controls with runat="server" attribute must be places inside <form runat="server" id="someID"> </form> tags.
If you use visual studio express editions or visual studio.net, you wont make such mistakes.
Due to lack of freedom of speech, i no longer post on this website.
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