Du har ret det er c#.
jeg har prøvet med contentplaceholderID.Visible = True;
men jeg får denne fejl :
The name 'info' does not exist in the current context
og info er placeholderens id ?
du kan se min kode her under:
master:
<%@ Master Language="C#" AutoEventWireup="true" CodeFile="MasterPage.master.cs" Inherits="MasterPage" %>
<!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>
<asp:ContentPlaceHolder id="head" runat="server">
</asp:ContentPlaceHolder>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:ContentPlaceHolder id="info" visible="false" runat="server">
</asp:ContentPlaceHolder>
<asp:ContentPlaceHolder id="content" runat="server">
</asp:ContentPlaceHolder>
</div>
</form>
</body>
</html>
page:
<%@ Page Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true" CodeFile="Default2.aspx.cs" Inherits="Default2" Title="Untitled Page" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
<style type="text/css">
#infoboxen
{
width:200px;
height:200px;
background-color:#000000;
display:block;
color:#ffffff;
font-family:Verdana;
font-weight:bold;
font-size:11px;
padding:20px;
}
</style>
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="info" Runat="Server">
<div id="infoboxen">
<asp:Label id="infobox" runat="server"></asp:Label>
</div>
</asp:Content>
<asp:Content ID="Content3" ContentPlaceHolderID="content" Runat="Server">
<form id="form1" runat="server">
<asp:LinkButton ID="LinkButton1" OnClick="test_me" runat="server" >click me</asp:LinkButton>
</form>
</asp:Content>
page code file:
using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
public partial class Default2 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void test_me(object sender, EventArgs e)
{
info.Visible = true;
infobox.Text = "some text";
}
}