我可以通过邮件发送附件,但附件内容为空白,大小显示为0字节。
通过互联网进行一些搜索后发现我们需要将内存流位置重置为0才能从开始开始。
我也试过了,但它似乎无法正常工作。你能帮忙吗?
请在下面找到我的代码段:
注意:我可以保存工作簿,并且数据存在于保存的工作簿中。
MemoryStream memoryStream = new MemoryStream();
StreamWriter writer = new StreamWriter(memoryStream);
writer.Write(xlWorkbook);
writer.Flush();
memoryStream.Position = 0;
MailMessage mail = new MailMessage();
SmtpClient SmtpServer = new SmtpClient("smtpclient");
mail.From = new MailAddress("from@gmail.com");
mail.To.Add("To@gmail.com");
mail.Subject = "Entry";
mail.Body = "Hello, PFA ";
System.Net.Mail.Attachment attachment;
attachment = new System.Net.Mail.Attachment(memoryStream,"xls");
attachment.ContentDisposition.FileName = "Input" + DateTime.Now.ToString("yyyyMMdd_hhss") + ".xls";
mail.Attachments.Add(attachment);
SmtpServer.Port = 465;
SmtpServer.UseDefaultCredentials = false;
SmtpServer.Credentials = new System.Net.NetworkCredential("Username", "password");
SmtpServer.EnableSsl = true;
SmtpServer.Send(mail);
writer.Dispose();
答案 0 :(得分:4)
我认为附件使邮件系统混乱。 Microsoft的建议是将内容类型指定为octet。以下是初始化附件的替代品。重置代码看起来很好。
string filename = "Input" + DateTime.Now.ToString("yyyyMMdd_hhss") + ".xls";
attachment = new System.Net.Mail.Attachment(memoryStream, filename, MediaTypeNames.Application.Octet);