private static MailAttachment CreateHtmlAttachment(string name, string html)
{
Debug.AssertStringNotEmpty(name);
Debug.AssertStringNotEmpty(html);
return(MailAttachment.CreateAttachmentFromString(html,
name + ".html", Encoding.UTF8, "text/html"));
}
private static MailAttachment CreateHtmlAttachment(string name, string html)
{
Debug.AssertStringNotEmpty(name);
Debug.AssertStringNotEmpty(html);
#if NET_1_0 || NET_1_1
//
// Create a temporary file to hold the attachment. Note that
// the temporary file is created in the location returned by
// System.Web.HttpRuntime.CodegenDir. It is assumed that
// this code will have sufficient rights to create the
// temporary file in that area.
//
string fileName = name + "-" + Guid.NewGuid().ToString() + ".html";
string path = Path.Combine(HttpRuntime.CodegenDir, fileName);
try
{
using (StreamWriter attachementWriter = File.CreateText(path))
attachementWriter.Write(html);
return(new MailAttachment(path));
}
catch (IOException)
{
//
// Ignore I/O errors as non-critical. It's not the
// end of the world if the attachment could not be
// created (though it would be nice). It is more
// important to get to deliver the error message!
//
return(null);
}
#else
return(MailAttachment.CreateAttachmentFromString(html,
name + ".html", Encoding.UTF8, "text/html"));
#endif
}
private void SendWithAttachments(MailMessage message)
{
string boundary = GenerateBoundary();
// first "multipart/mixed"
ContentType messageContentType = new ContentType();
messageContentType.Boundary = boundary;
messageContentType.MediaType = "multipart/mixed";
messageContentType.CharSet = null;
SendHeader(HeaderName.ContentType, messageContentType.ToString());
SendData(String.Empty);
// body section
Attachment body = null;
if (message.AlternateViews.Count > 0)
{
SendWithoutAttachments(message, boundary, true);
}
else
{
body = Attachment.CreateAttachmentFromString(message.Body, null, message.BodyEncoding, message.IsBodyHtml ? "text/html" : "text/plain");
message.Attachments.Insert(0, body);
}
try {
SendAttachments(message, body, boundary);
} finally {
if (body != null)
{
message.Attachments.Remove(body);
}
}
EndSection(boundary);
}
