Date: 01/19/07 (C Sharp)    Keywords: html

I'm trying to send an email attachment "Data.txt" which in the end, is a tab-delimited file. I want to do this without creating a file on the server, so I'm reading the data in to a memory stream, and sending it across. The problem is that when the email arrives, the file itself is empty. Here is my sample code:

private void SendEmail()
{
try
{
string strEmailFrom = txtFrom.Text;
string strEmailT0 = txtTo.Text;

string strSubject = "Email test";


MemoryStream msData = new MemoryStream();

TextWriter twReport = new StreamWriter(msData);

for (int r = 0; r < 10; r++)
{
for (int c = 0; c < 10; c++)
{
string sValue = "r=" + r.ToString() + ";c=" + c.ToString();
twReport.Write(sValue);
twReport.Write("\t");
}
twReport.Write(System.Environment.NewLine);
}

string strBody = "Email Test Body";

twReport.Flush();

SendEmailDirect(strEmailFrom, strEmailT0, strSubject, strBody, msData, "ReportDataEmail.txt", true);

twReport.Close();
}
catch (Exception e)
{
MessageBox.Show(e.ToString());
}
}

public static void SendEmailDirect(string strEmailFrom, string strEmailTo, string strSubject, string strBody, System.IO.Stream streamData, string strAttName, bool bIsHtml)
{

SmtpClient oSmtpClient = new SmtpClient(GetSMTPClient());
MailMessage mailMessage = new MailMessage();
mailMessage.IsBodyHtml = bIsHtml;

mailMessage.To.Add(strEmailTo);
mailMessage.From = new MailAddress(strEmailFrom);
mailMessage.Subject = strSubject;
mailMessage.Body = strBody;

System.Net.Mime.ContentType ct = new System.Net.Mime.ContentType();
ct.MediaType = System.Net.Mime.MediaTypeNames.Text.Plain;
ct.Name = strAttName;



Attachment attReport = new Attachment(streamData, ct);


mailMessage.Attachments.Add(attReport);

oSmtpClient.Send(mailMessage);
}


What am I doing wrong?

Source: http://community.livejournal.com/csharp/80618.html