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

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Posts: 10

Reputation: C#Novice is an unknown quantity at this point

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C#Novice

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

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:
---->

 Help with Code Tags 
 asp.net Syntax (Toggle Plain Text) 
<%@ Control Language="c#" AutoEventWireup="false" Codebehind="LeftNav.ascx.cs" Inherits="CE.userControls.LeftNav" TargetSchema="http://schemas.microsoft.com/intellisense/ie5" %>
<td class="leftcolumn" valign="top">
<div id="snav">
		<div class="subnav">
			<ul class='navlink'>
				<li class='navlink3'>
				<asp:LinkButton ID="lnkCore" Runat="server"  OnClick="lnkCore_Click" CausesValidation="False" > CCR
				</asp:LinkButton>	</li>
			</ul>
		</div>
 
 
	<asp:Panel ID="pnlCl"  Runat=server Visible="False">
	<%
	Response.Write ("<div class='subnav'><ul class='navlink'><li class='navlink'");
	int i=0;
		//for (int i=0;i<arrBlock.Count;i++)
		//{
			string gyr = "0";
			if (Convert.ToInt32(HttpContext.Current.Session["sesgyr"]) > 0)
			{gyr = HttpContext.Current.Session["sesgyr"].ToString().Trim();}
			//Response.Write ("<li class='navlink'>");
			//if (bcode==(i+1)) {Response.Write ("<img src='/CE/images/arrow.down.png'>");}
			//else {Response.Write ("<img src='/CE/images/arrow.right.png'>");}
			//Response.Write ("&nbsp;<a href='/CE/default.aspx?b="+(i+1).ToString().Trim()+"'>"+arrBlock[i]+"</a></li>");
			//if (bcode==(i+1))
			//{
				string ugr = HttpContext.Current.Session["sesusergroup"].ToString().Trim();
				Response.Write ("<div class='subnav'><ul class='navlink'>");
				for (int j=0;j<arrCoreBlock.Count;j++)
				{
					Response.Write ("<li class='navlink'><img src='/CE/images/arrow.right.png'>&nbsp;<font color=#00646E>"+arrCoreBlock[j]+"</font></li>");
					Response.Write ("<table><tr>");
					if (ugr!="CLINBLOCK1CCF" && ugr!="CLINBLOCK1MHMC" && ugr!="CLINBLOCK2CCF" && ugr!="CLINBLOCK2MHMC")
					{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>");}
					if (ugr!="CLINBLOCK1CCF" && ugr!="CLINBLOCK1UH" && ugr!="CLINBLOCK2CCF" && ugr!="CLINBLOCK2UH")
					{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>");}
					if (ugr!="CLINBLOCK1UH" && ugr!="CLINBLOCK1MHMC" && ugr!="CLINBLOCK2UH" && ugr!="CLINBLOCK2MHMC")
					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>");
					Response.Write ("</tr></table>");
				}
				Response.Write ("</ul></div>");
			//}
		//}
		Response.Write ("</ul></div>");
		%>
		</asp:Panel>
 
	<%
			Response.Write ("<hr>&nbsp;<img src='/CE/images/arrow.right.png'>");
			Response.Write ("&nbsp;<a href='/CE/components/cgTime.aspx'>Timeliness</a>");
				%>
		<br class="header3">
 
	</div>
 
</td>
<td id="tdMain">
	<div class="paddedwrapper1"></div>
<%@ Control Language="c#" AutoEventWireup="false" Codebehind="LeftNav.ascx.cs" Inherits="CE.userControls.LeftNav" TargetSchema="http://schemas.microsoft.com/intellisense/ie5" %>
<td class="leftcolumn" valign="top">
<div id="snav">
		<div class="subnav">
			<ul class='navlink'>
				<li class='navlink3'>
				<asp:LinkButton ID="lnkCore" Runat="server"  OnClick="lnkCore_Click" CausesValidation="False" > CCR
				</asp:LinkButton>	</li>
			</ul>
		</div>
		
	
	<asp:Panel ID="pnlCl"  Runat=server Visible="False">
	<%
	Response.Write ("<div class='subnav'><ul class='navlink'><li class='navlink'");
	int i=0;
		//for (int i=0;i<arrBlock.Count;i++)
		//{
			string gyr = "0";
			if (Convert.ToInt32(HttpContext.Current.Session["sesgyr"]) > 0)
			{gyr = HttpContext.Current.Session["sesgyr"].ToString().Trim();}
			//Response.Write ("<li class='navlink'>");
			//if (bcode==(i+1)) {Response.Write ("<img src='/CE/images/arrow.down.png'>");}
			//else {Response.Write ("<img src='/CE/images/arrow.right.png'>");}
			//Response.Write ("&nbsp;<a href='/CE/default.aspx?b="+(i+1).ToString().Trim()+"'>"+arrBlock[i]+"</a></li>");
			//if (bcode==(i+1))
			//{
				string ugr = HttpContext.Current.Session["sesusergroup"].ToString().Trim();
				Response.Write ("<div class='subnav'><ul class='navlink'>");
				for (int j=0;j<arrCoreBlock.Count;j++)
				{
					Response.Write ("<li class='navlink'><img src='/CE/images/arrow.right.png'>&nbsp;<font color=#00646E>"+arrCoreBlock[j]+"</font></li>");
					Response.Write ("<table><tr>");
					if (ugr!="CLINBLOCK1CCF" && ugr!="CLINBLOCK1MHMC" && ugr!="CLINBLOCK2CCF" && ugr!="CLINBLOCK2MHMC")
					{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>");}
					if (ugr!="CLINBLOCK1CCF" && ugr!="CLINBLOCK1UH" && ugr!="CLINBLOCK2CCF" && ugr!="CLINBLOCK2UH")
					{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>");}
					if (ugr!="CLINBLOCK1UH" && ugr!="CLINBLOCK1MHMC" && ugr!="CLINBLOCK2UH" && ugr!="CLINBLOCK2MHMC")
					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>");
					Response.Write ("</tr></table>");
				}
				Response.Write ("</ul></div>");
			//}
		//}
		Response.Write ("</ul></div>");
		%>
		</asp:Panel>
		
	<%
			Response.Write ("<hr>&nbsp;<img src='/CE/images/arrow.right.png'>");
			Response.Write ("&nbsp;<a href='/CE/components/cgTime.aspx'>Timeliness</a>");
				%>
		<br class="header3">
	
	</div>
			
</td>
<td id="tdMain">
	<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 1:46 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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Posts: 1,413

Reputation: serkan sendur is an unknown quantity at this point

Solved Threads: 69

serkan sendur serkan sendur is offline

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

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.

Serkan Sendur
All my helpful posts are dedicated to Marty Friedman, especially for his song Forbidden City.

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