private void DownloadFile(string msgSequenceNumber, string format)
{
try
{
// initialize exchange client
NetworkCredential credential = new NetworkCredential(txtUsername.Text, Session["Password"].ToString(), txtDomain.Text);
Aspose.Email.Exchange.ExchangeClient client = new Aspose.Email.Exchange.ExchangeClient(txtHost.Text, credential);
lblMessage.ForeColor = Color.Green;
lblMessage.Text = "Successfully connected to Microsoft Exchange Server.<br><hr>";
// get the message
MemoryStream stream = new MemoryStream();
MailMessage msg = client.FetchMessage(msgSequenceNumber);
if (format == "eml")
msg.Save(stream, MessageFormat.Eml);
else
msg.Save(stream, MessageFormat.Msg);
stream.Position = 0;
byte[] msgBytes = new byte[stream.Length];
stream.Read(msgBytes, 0, (int)stream.Length);
Response.Clear();
Response.Buffer = true;
Response.AddHeader("Content-Length", msgBytes.Length.ToString());
Response.AddHeader("Content-Disposition", "attachment; filename=Message." + format);
Response.ContentType = "application/octet-stream";
Response.BinaryWrite(msgBytes);
Response.End();
}
catch (Exception ex)
{
lblMessage.ForeColor = Color.Red;
lblMessage.Text = "Error: " + ex.Message;
}
}
