C# 将 System.Drawing.Image 附加到电子邮件

Question

有没有办法将 System.Drawing.Image 附加到电子邮件而不保存它，然后从保存的路径中抓取它。

现在我正在创建图像并保存它。然后我发送电子邮件:

MailMessage mail = new MailMessage();
                string _body = "body"

                mail.Body = _body;
                string _attacmentPath;
                if (iP.Contains(":"))
                    _attacmentPath = (@"path1");//, System.Net.Mime.MediaTypeNames.Application.Octet));
                else
                    _attacmentPath = @"path2");
                mail.Attachments.Add(new Attachment(_attacmentPath, System.Net.Mime.MediaTypeNames.Application.Octet));
                mail.To.Add(_imageInfo.VendorEmail);
                mail.Subject = "Rouses' PO # " + _imageInfo.PONumber.Trim();
                mail.From = _imageInfo.VendorNum == 691 ? new MailAddress("email", "") : new MailAddress("email", "");
                SmtpClient server = null;
                mail.IsBodyHtml = true;
                mail.Priority = MailPriority.Normal; 
                server = new SmtpClient("server");
                try
                {

                    server.Send(mail);
                }
                catch
                {

                }

有没有办法直接将 System.Drawing.Image 传递给 mail.Attachments.Add()？

Answer 1

您不能将 Image 直接传递给附件，但您可以跳过文件系统，只需将图像保存到 MemoryStream，然后提供 MemoryStream 到附件构造函数:

var stream = new MemoryStream();
image.Save(stream, ImageFormat.Jpeg);
stream.Position = 0;

mail.Attachments.Add(new Attachment(stream, "image/jpg"));