email an aspx page on a button click

<system.net>
     <mailsettings>
	 <smtp>
	     <network host="smtp.domain.com" port="25" username="user@domain.com" password="$0M3Pa@$5w0D" />
	  </smtp>
     </mailsettings>
</system.net>

String html = String.Empty;
try
{
   WebClient web = new WebClient();
   Byte[] bytes;
   // Change url to maybe: http://localhost:10101/2.aspx
   bytes = web.DownloadData( "http:www.domain.com/page.aspx" );
   UTF8Encoding oUTF8 = new UTF8Encoding();
   // Get the html returned from the page/url
   html = oUTF8.GetString( bytes );
   
   // Send the message
   MailMessage mail = new MailMessage( "sender@mail.com", "receiver@mail.com" );
   SmtpClient smtp = new SmtpClient();
   mail.Subject = "Message Subject";
   mail.Body = html;
   mail.IsBodyHtml = true; // It says e-mail clients should render this as html
   smtp.Send( mail ); // ... and, send it!
}
catch( Exception up )
{
   throw up; // Handle your errors accordingly, or leave as is to throw up.
}