I must be missing something really basic here.  How do I add a file attachment...

 

SmtpClient client = new SmtpClient(SmtpServer);

MailMessage mailMessage = new MailMessage(FromEmailAddress, ToEmailAddress);

mailMessage.Body = body;

mailMessage.Subject = subject;

mailMessage.BodyEncoding = Encoding.ASCII;

mailMessage.SubjectEncoding = Encoding.ASCII;

mailMessage.Attachments.Add(......... 

 

mailMessage.Attachments.Add(new Attachment(fileName)); is one possible scenario. The Attachment class inherits from the abstract AttachmentBase class. See the documentation for all the possible constructors.

Like I said maybe I am missing something but here is the Attachment class...

using System;
using System.Collections.Generic;
using System.Text;

namespace OpenNETCF.Net.Mail
{
    /// 
    /// Represents an attachment to an e-mail.
    /// 
    public class Attachment
    {
        //TODO Currently not supported
        internal void Dispose()
        {
            throw new Exception("The method or operation is not implemented.");
        }
    }
}

It does not extend AttachmentBase like I thought it would...The is in OpenNETCF.Net.Mail...

I just checked the source in TFS and yep, it's stubbed out but not implemented. If you'd like to report this as a bug, we can then track it. 

Any ETA on when this fix will be implemented. Kinda need this as my own hand-rolled SMTP class is not working and trying to avoid using PocketOutlook as the people using the device will abuse the email.

 The bug was reported in May.

 http://bugzilla.opennetcf.com/show_bug.cgi?id=376

Perhaps a nice work around will be to make use of the PocketOutlook Attachment class.

This will allow the following code to work

             Microsoft.WindowsMobile.PocketOutlook.Attachment att = new Microsoft.WindowsMobile.PocketOutlook.Attachment(@"\test.txt");

             msg.Attachments.Add((OpenNETCF.Net.Mail.Attachment) (att));

Dunno how possible this is. Becoming rather urgent on this.

Is there a solution for that bug ?

it seems the workaround doesn' work (conversion not possible)

:-) Michael

 Is there a time frame for when Attachments to emails are going to be supported?   This is a pretty serious feature to leave out.  Is it even being considered for the next release of the SDK.    The OpenNet SDK fills in some big gaps in the .NET Compact Framework, but it is very frustrating when you find out these hidden unimplemented features that make it practically useless.

I don't have a time frame for it, no.  In fact this is, I believe, only the third time it's been asked about in something like 5 years.

Attachments are fairly simple - you simply would make the format of the body MIME, set the content-type to mime/multipart and assemble the pieces.

@ ctacke, I created an account just to post how important this is to developers on wince. The mailing function works great, but I think the attachment will definitely put you guys on top. Hells, I'll pay for it. It's been over a year, and the new OpenNETCF still doesn't contain the attachment functionality. I'm going to assume that it won't be released any time soon?

Is there an example of how to do such thing? It sounds too Matrix-y, with the dissemble and reassemble of information. I'm just waiting for this attachment function as this is the best mailing dll out there that I could find.