سعود كتب :Global.asax
فيها عدة احداث حتما ان اطلعت عليها ستعرفها تلقائيا انظر للملف لدي

كود :

<%@ Application Language="VB" %>

<script runat="server">


    Sub Application_Start(ByVal sender As Object, ByVal e As EventArgs)
        ' Code that runs on application startup
        Application("activeuser") = 0


    End Sub
    
    Sub Application_End(ByVal sender As Object, ByVal e As EventArgs)
        ' Code that runs on application shutdown
    End Sub
        
    Sub Application_Error(ByVal sender As Object, ByVal e As EventArgs)
        ' Code that runs when an unhandled error occurs
    End Sub


    Sub Session_Start(ByVal sender As Object, ByVal e As EventArgs)
        ' Code that runs when a new session is started
        Session("start") = DateTime.Now


        Application.Lock()
        Application("activeuser") = Convert.ToInt32(Application("activeuser")) + 1
        Application.UnLock()


    End Sub


    Sub Session_End(ByVal sender As Object, ByVal e As EventArgs)
        ' 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.
        Application.Lock()
        Application("activeuser") = Convert.ToInt32(Application("activeuser")) - 1
        Application.UnLock()


    End Sub
      
</script>

وضمن حدث تحميل الصفحة الرئيسية

كود :

If Not IsPostBack Then            Dim i As Integer = Convert.ToInt32(Application("activeuser"))
            ' Response.Write("عدد الزوار الان: " & i.ToString())
            ' Application("activeuser") += 1
            visit.InnerText = "عدد الزوار الان: " & i.ToString


        End If