Tips & Tricks for ASP.NET - C#

Show the visitors any friendly message and send email to you with the page name and error details.

WEBCONFIG
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<customErrors mode="On" defaultRedirect="404.aspx"></customErrors>

GLOBAL.ASAX
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    void Application_Error(object sender, EventArgs e)
    {
        // Code that runs when an unhandled error occurs

Exception objErr = Server.GetLastError().GetBaseException();
 string err = "<font face=Arial size=2><p>Error Message:" + objErr.Message.ToString() + "</p>" +
                     "<p>Error in: " + Request.Url.ToString() + "</p></font>";

// Email the Error
       
System.Net.Mail.MailMessage mlMsg = new System.Net.Mail.MailMessage("from email id", "to email id", "Subject", err);
       
System.Net.Mail.SmtpClient smtpCl = new System.Net.Mail.SmtpClient("xx.xx.xxx.xxx"); // IP address of the server
mlMsg.IsBodyHtml = true;
             
smtpCl.Send(mlMsg);       
       
       

    }

404.aspx
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display a friendly message to the visitors, like page not found etc