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ASP.NET Visitors counter

Question:

I am creating a counter for my webpage. What wan't to achieve is that every time user visits my asp.net application, it stores his data into database. I am using Global.asax and event Application_Start. Here is my code .

protected void Application_Start() { AreaRegistration.RegisterAllAreas(); RegisterRoutes(RouteTable.Routes); WebpageCounter.SaveVisitor(new WebpageVisitor() { VisitorIP = HttpContext.Current.Request.UserHostAddress, VisitedOn = DateTime.Now }); }

But it never stores anything into database. The function SaveVisitor has been tested and it is functional. Any suggestions ?

Thanks

Answer1:

Application_Start is runs only when process created - not every visit.

You can use Application_BeginRequest instead.

Answer2:

Application_Start() is only called once for the lifetime of the application domain - not for every request to your site. Also see <a href="http://msdn.microsoft.com/en-us/library/ms178473.aspx" rel="nofollow">"ASP.NET Application Life Cycle Overview for IIS 5.0 and 6.0"</a>

Answer3:

Code for the code behind:

C#

protected void Page_Load(object sender, EventArgs e) { this.countMe(); DataSet tmpDs = new DataSet(); tmpDs.ReadXml(Server.MapPath("~/counter.xml")); lblCounter.Text = tmpDs.Tables[0].Rows[0]["hits"].ToString(); } private void countMe() { DataSet tmpDs = new DataSet(); tmpDs.ReadXml(Server.MapPath("~/counter.xml")); int hits = Int32.Parse(tmpDs.Tables[0].Rows[0]["hits"].ToString()); hits += 1; tmpDs.Tables[0].Rows[0]["hits"] = hits.ToString(); tmpDs.WriteXml(Server.MapPath("~/counter.xml")); }

VB.NET

Protected Sub Page_Load(sender As Object, e As EventArgs) Me.countMe() Dim tmpDs As New DataSet() tmpDs.ReadXml(Server.MapPath("~/counter.xml")) lblCounter.Text = tmpDs.Tables(0).Rows(0)("hits").ToString() End Sub Private Sub countMe() Dim tmpDs As New DataSet() tmpDs.ReadXml(Server.MapPath("~/counter.xml")) Dim hits As Integer = Int32.Parse(tmpDs.Tables(0).Rows(0)("hits").ToString()) hits += 1 tmpDs.Tables(0).Rows(0)("hits") = hits.ToString() tmpDs.WriteXml(Server.MapPath("~/counter.xml")) End Sub

XML file will look like this:

<?xml version="1.0" encoding="utf-8" ?> <counter> <count> <hits>0</hits> </count>

Answer4:

This information can be logged by IIS, and then queried/transformed using the excellent <a href="http://technet.microsoft.com/en-us/scriptcenter/dd919274" rel="nofollow" title="logparser 2.2">logparser</a>. You could also put Google Analytics on your site - its free version is sufficient for all but the busiest sites. If you still feel the need to do this yourself, then Application_BeginRequest is a better place to record this.

<strong>EDIT</strong>: You could implement it as a module, like <a href="http://msdn.microsoft.com/en-us/library/ms227673%28v=VS.100%29.aspx" rel="nofollow" title="msdn">the MSDN Custom Module Walkthrough</a> and then your app could be a little more modular

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