c＃如何将附件保存到文件夹？ .NET2

Question

我创建一个CSV文件，并将其连接到像这样的电子邮件...

using (MemoryStream stream = new MemoryStream(Encoding.ASCII.GetBytes(csv))) 
      { 
       try 
       { 
        to = "email@email.com"; 
        string from = "user@email.co.uk"; 
        string subject = "Order p"+ OrderNumber; 
        string body = result; 
        SmtpClient SMTPServer = new SmtpClient("127.0.0.1"); 
        MailMessage mailObj = new MailMessage(from, to, subject, body); 
        Attachment attachment = new Attachment(stream, new ContentType("text/csv")); 
        attachment.Name = "p" + OrderNo + "_" + CustomerReference+".csv"; 
        mailObj.Attachments.Add(attachment); 
        SMTPServer.Send(mailObj); 
       } 
       catch (Exception ex) 
       { } 
      } 

这工作得很好，但如何我同csv文件保存到一个文件夹？谢谢

Answer 1

在System.IO的File.WriteAllText方法可能是实现这一目标的最简单的方法：

File.WriteAllText("<destination>", csv); 

其中<destination>是文件的路径将CSV保存到。如果该文件不存在，该文件将被创建，否则将被覆盖。

Answer 2

你有你的流保存到一个位置：

var newfile = new StreamWriter(path_filename); 

foreach (var l in stream) 
    newfile.WriteLine(l); 
newfile.Close(); 

编辑：

使用这个代替：

StreamWriter outputfile = new StreamWriter("c:\temp\outputfile.csv"); 

然后是foreach循环。

编辑2（从MSDN网站）：

// Read the first 20 bytes from the stream. 
    byteArray = new byte[memStream.Length]; 
    count = memStream.Read(byteArray, 0, 20); 

    // Read the remaining bytes, byte by byte. 
    while(count < memStream.Length) 
      { 
       byteArray[count++] = 
        Convert.ToByte(memStream.ReadByte()); 
      } 

    // Decode the byte array into a char array 
    // and write it to the console. 
    charArray = new char[uniEncoding.GetCharCount(
    byteArray, 0, count)]; 
    uniEncoding.GetDecoder().GetChars(
       byteArray, 0, count, charArray, 0); 
      Console.WriteLine(charArray); //here you should send to the file as the first example i wrote instead of to writing to console.