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<%@ 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>Chapter 8: Counter</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Label ID="lblSessionClicks" runat="server"></asp:Label><br />
<br />
<asp:Label ID="lblApplicationClicks" runat="server"></asp:Label><br />
<br />
<asp:Button ID="btnPost" runat="server" OnClick="btnPost_Click" Text="Post" /> </div>
</form>
</body>
</html>
File: Default.aspx.cs
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
public partial class _Default : System.Web.UI.Page
{
int sessionCount;
protected void Page_Load(object sender, EventArgs e)
{
if (Session["Count"] == null)
{
sessionCount = 0;
}
else
{
sessionCount = Convert.ToInt32(Session["Count"]);
}
}
protected void btnPost_Click(object sender, EventArgs e)
{
sessionCount++;
Session["Count"] = sessionCount;
lblSessionClicks.Text = "You have clicked the button " + sessionCount + " times.";
Application.Lock();
int applicationCount = Convert.ToInt32(Application["HitCount"]);
applicationCount++;
Application["HitCount"] = applicationCount;
Application.UnLock();
lblApplicationClicks.Text = "All users have clicked the button " + applicationCount + " times.";
}
}
File: Global.asax
<%@ Application Language="C#" %>
<script runat="server">
void Application_Start(object sender, EventArgs e)
{
// Code that runs on application startup
Application.Add("HitCount", 0);
}
void Application_End(object sender, EventArgs e)
{
// Code that runs on application shutdown
}
void Application_Error(object sender, EventArgs e)
{
// Code that runs when an unhandled error occurs
}
void Session_Start(object sender, EventArgs e)
{
// Code that runs when a new session is started
}
void Session_End(object sender, EventArgs e)
{
// Code that runs when a session ends.
// Note: The Session_End event is raised only when the sessionstate mode
// is set to InProc in the Web.config file. If session mode is set to StateServer
// or SQLServer, the event is not raised.
}
</script>
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