mail attachments using asp.net

Question

I am trying to mail with attachments using asp.net. To do this I have done the following code:

Default.aspx.cs:

using (MailMessage mailMessage = new MailMessage())
        {
            mailMessage.From = new MailAddress(ConfigurationManager.AppSettings["UserName"]);
            mailMessage.Subject = "Test Subject";
            mailMessage.Body = myString.ToString();
            if (fuAttachment.HasFile)
            {
                string FileName = Path.GetFileName(fuAttachment.PostedFile.FileName);
                mailMessage.Attachments.Add(new Attachment(fuAttachment.PostedFile.InputStream, FileName));
            }
            mailMessage.IsBodyHtml = true;
            mailMessage.To.Add(new MailAddress(txtem.Text.ToString()));
            mailMessage.CC.Add(new MailAddress("sample@test.com"));
            mailMessage.Bcc.Add(new MailAddress("sample1@test.com"));

            SmtpClient smtp = new SmtpClient();
            smtp.Host = ConfigurationManager.AppSettings["Host"];
            smtp.EnableSsl = Convert.ToBoolean(ConfigurationManager.AppSettings["EnableSsl"]);
            System.Net.NetworkCredential NetworkCred = new System.Net.NetworkCredential();
            NetworkCred.UserName = ConfigurationManager.AppSettings["UserName"];
            NetworkCred.Password = ConfigurationManager.AppSettings["Password"];
            smtp.UseDefaultCredentials = true;
            smtp.Credentials = NetworkCred;
            smtp.Port = int.Parse(ConfigurationManager.AppSettings["Port"]);
            smtp.Send(mailMessage);
        }

Default.aspx:

<tr>
                                        <td align="left">Passport Scan Copy</td>
                                        <td align="left">
                                            <asp:FileUpload ID="fuAttachment" runat="server" />
                                        </td>
                                        </tr>

Now with this code I can send email properly but there is no attachment! Is it because I have to upload the file separately in the server. Am actually clueless on this point can anyone please help me.

Answer 1

Set your form enctype to multipart/form-data. Otherwise the file does not get posted to the server and your attachment will not be sent.

<form runat="server" enctype="multipart/form-data">