Email alert when page is open - asp.net

Question

Is there any way in asp.net that when my page is open on web then an email alert with username should be generate so that i have information that which one is accessing my page
I changed the code like bellow
Public Sub SendMail(ByVal id As String)
Dim message = New MailMessage()
message.IsBodyHtml = True
message.From = New MailAddress("adeel.aslam0#gmail.com")
message.[To].Add(New MailAddress("malik.adeel#shakarganj.com"))
message.Subject = "user access page"
message.Body = "Your Message"
' add id here
Dim client = New SmtpClient("smtp.gmail.com")
client.Send(message)
End Sub
and in web.config like this
<system.net>
<mailSettings>
<smtp from="adeel.aslam0#gmail.com">
<network host="smtp.gmail.com" defaultCredentials="false"
port="587" userName ="adeel.aslam0#gmail.com" password="pass" />
</smtp>
</mailSettings>
</system.net>

Answer 1

You might do something similar..
Modify your web.config file to send emails
e.g. This use gmail settings
<system.net>
<mailSettings>
<smtp from="yourMailId#gmail.com ">
<network host="smtp.gmail.com" defaultCredentials="false"
port="587" userName ="yourmail#gmail.com" password="yourpassword" />
</smtp>
</mailSettings>
</system.net>
And in your page_load
protected void Page_Load(object sender, EventArgs e)
{
if(!IsPostBack)
{
var user = HttpContext.Current.User;
if (user != null && user.Identity.IsAuthenticated)
{
var id = Membership.GetUser().ProviderUserKey;
SendMail(id.ToString());
}
}
}
public void SendMail(string id)
{
var message = new MailMessage();
message.IsBodyHtml = true;
message.From = new MailAddress("yourmail");
message.To.Add(new MailAddress("tomail"));
message.Subject= "user access page";
message.Body = "Your Message";// add id here
var client = new SmtpClient();
client.Send(message);
}
if you using vb try something like this.
This way, you will not need to change your web.config
Dim mailobject As New System.Net.Mail.MailMessage()
Dim myCred As New System.Net.NetworkCredential("yourmail#gmail.com", "password")
mailobject.To.Add("tomail")
mailobject.Subject = "User Access The Page"
mailobject.From = New System.Net.Mail.MailAddress("frommail")
mailobject.IsBodyHtml = True
mailobject.Body = "Your Message"
Dim SmtpMail As New System.Net.Mail.SmtpClient("smtp.gmail.com")
SmtpMail.UseDefaultCredentials = False
SmtpMail.EnableSsl = True
SmtpMail.Credentials = myCred
SmtpMail.Port = 587
SmtpMail.Send(mailobject)

Answer 2

Fair question. But you really do not want to do this unless you have a very limited amount of visitors. See the answer above on how to do it.
Better write everything into a table and send yourself a digest at certain interval per hour/day. This way you can also do some reporting afterwards using that table.