iTextSharp的 - 发送内存中的PDF电子邮件附件 [英] iTextSharp - Sending in-memory pdf in an email attachment

问题描述

我问过几个问题在这里，但我仍然有问题。我倒是AP preciate如果你能告诉我什么，我在我的code做错了。我从ASP.Net页运行code以上，并得到无法访问已关闭的流。

  VAR DOC =新的文件（）;MemoryStream的MemoryStream的=新的MemoryStream（）;PdfWriter.GetInstance（文件，MemoryStream的）;
doc.Open（）;
doc.Add（新段（第一款））;
doc.Add（新段（第二段落））;doc.Close（）; //如果我删除此行的电子邮件附件发送，但有0字节毫米MAILMESSAGE新= MAILMESSAGE（[e-mail]，[e-mail]）
{
    主题=主题，
    IsBodyHtml = TRUE，
    身体=身
};mm.Attachments.Add（新附件（的MemoryStream的test.pdf））;
SmtpClient SMTP =新SmtpClient
{
    主机=smtp.gmail.com
    端口= 587，
    EnableSsl = TRUE，
    证书=新的NetworkCredential（[e-mail]，MY_PASSWORD）
};smtp.Send（毫米）; //无法访问已关闭流的错误在这里抛出
 

谢谢！

编辑：

只是为了帮助别人寻找这个问题的答案时，code发送附加到电子邮件的PDF文件，而无需实际创建该文件是以下（感谢一番，并Brianng）：

  VAR DOC =新的文件（）;
MemoryStream的MemoryStream的=新的MemoryStream（）;
PdfWriter作家= PdfWriter.GetInstance（文件，MemoryStream的）;doc.Open（）;
doc.Add（新段（第一款））;
doc.Add（新段（第二段落））;writer.CloseStream = FALSE;
doc.Close（）;
memoryStream.Position = 0;毫米MAILMESSAGE新= MAILMESSAGE（[e-mail]，[e-mail]）
{
    主题=主题，
    IsBodyHtml = TRUE，
    身体=身
};mm.Attachments.Add（新附件（MemoryStream的filename.pdf））;
SmtpClient SMTP =新SmtpClient
{
    主机=smtp.gmail.com
    端口= 587，
    EnableSsl = TRUE，
    证书=新的NetworkCredential（[e-mail]，密码）};smtp.Send（毫米）;
 

解决方案

你试过：

  PdfWriter作家= PdfWriter.GetInstance（文件，MemoryStream的）;//生成PDF code ...writer.CloseStream = FALSE;
doc.Close（）;//建立电子邮件memoryStream.Position = 0;
mm.Attachments.Add（新附件（的MemoryStream的test.pdf））;
 

如果我没有记错正确，这解决了类似的问题，在previous项目。

请参阅 http://forums.asp.net/t/1093198.aspx

I've asked a couple of questions here but am still having issues. I'd appreciate if you could tell me what I am doing wrong in my code. I run the code above from a ASP.Net page and get "Cannot Access a Closed Stream".

var doc = new Document();

MemoryStream memoryStream = new MemoryStream();

PdfWriter.GetInstance(doc, memoryStream);
doc.Open();
doc.Add(new Paragraph("First Paragraph"));
doc.Add(new Paragraph("Second Paragraph"));

doc.Close(); //if I remove this line the email attachment is sent but with 0 bytes 

MailMessage mm = new MailMessage("[e-mail]", "[e-mail]")
{
    Subject = "subject",
    IsBodyHtml = true,
    Body = "body"
};

mm.Attachments.Add(new Attachment(memoryStream, "test.pdf"));
SmtpClient smtp = new SmtpClient
{
    Host = "smtp.gmail.com",
    Port = 587,
    EnableSsl = true,
    Credentials = new NetworkCredential("[e-mail]", "my_password")
};

smtp.Send(mm); //the "Cannot Access a Closed Stream" error is thrown here

Thanks!!!

EDIT:

Just to help somebody looking for the answer to this question, the code to send a pdf file attached to an email without having to physically create the file is below (thanks to Ichiban and Brianng):

var doc = new Document();
MemoryStream memoryStream = new MemoryStream();
PdfWriter writer = PdfWriter.GetInstance(doc, memoryStream);

doc.Open();
doc.Add(new Paragraph("First Paragraph"));
doc.Add(new Paragraph("Second Paragraph"));

writer.CloseStream = false;
doc.Close();
memoryStream.Position = 0;

MailMessage mm = new MailMessage("[e-mail]", "[e-mail]")
{
    Subject = "subject",
    IsBodyHtml = true,
    Body = "body"
};

mm.Attachments.Add(new Attachment(memoryStream, "filename.pdf"));
SmtpClient smtp = new SmtpClient
{
    Host = "smtp.gmail.com",
    Port = 587,
    EnableSsl = true,
    Credentials = new NetworkCredential("[e-mail]", "password")

};

smtp.Send(mm);

解决方案

Have you tried:

PdfWriter writer = PdfWriter.GetInstance(doc, memoryStream);

// Build pdf code...

writer.CloseStream = false;
doc.Close();

// Build email

memoryStream.Position = 0;
mm.Attachments.Add(new Attachment(memoryStream, "test.pdf"));

If my memory serves me correctly, this solved a similar problem in a previous project.

See http://forums.asp.net/t/1093198.aspx

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