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using System;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
namespace myControls
{
public class UsersOnline : WebControl
{
protected override void RenderContents(HtmlTextWriter writer)
{
writer.Write(Membership.GetNumberOfUsersOnline());
}
}
}
File: ShowUsersOnline.aspx
<%@ Page Language="C#" %>
<%@ Register TagPrefix="custom" Namespace="myControls" %>
<!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 id="Head1" runat="server">
<title>Show UsersOnline</title>
</head>
<body>
<form id="form1" runat="server">
<div>
How many people are online?
<br/>
<custom:UsersOnline
id="UsersOnline1"
Runat="server" />
</div>
</form>
</body>
</html>
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