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("[e-mail]")
        message.[To].Add(New MailAddress("[e-mail]"))
        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="[e-mail]">
        <network host="smtp.gmail.com" defaultCredentials="false"
      port="587" userName ="[e-mail]" 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="[e-mail] ">
        <network host="smtp.gmail.com" defaultCredentials="false"
      port="587" userName ="[e-mail]" 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("[e-mail]", "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)