.net 使用C#向电子邮件添加附件

wwtsj6pe 于 2022-12-27 发布在 .NET

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我正在使用Sending email in .NET through Gmail答案中的以下代码。我遇到的问题是在电子邮件中添加附件。如何使用以下代码添加附件？

using System.Net.Mail;

var fromAddress = new MailAddress("from@gmail.com", "From Name");
var toAddress = new MailAddress("to@example.com", "To Name");
const string fromPassword = "fromPassword";
const string subject = "Subject";
const string body = "Body";

var smtp = new SmtpClient
{
    Host = "smtp.gmail.com",
    Port = 587,
    EnableSsl = true,
    DeliveryMethod = SmtpDeliveryMethod.Network,
    UseDefaultCredentials = false,
    Credentials = new NetworkCredential(fromAddress.Address, fromPassword)
};
using (var message = new MailMessage(fromAddress, toAddress)
    {
        Subject = subject,
        Body = body
    })
{
    smtp.Send(message);
}

.net

来源：https://stackoverflow.com/questions/5034503/adding-an-attachment-to-email-using-c-sharp

5条答案

按热度按时间

dly7yett1#

通过new MailMessage方法调用创建的message对象具有属性.Attachments。
例如：

message.Attachments.Add(new Attachment(PathToAttachment));

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vshtjzan2#

使用MSDN中建议的Attachment类：

// Create  the file attachment for this e-mail message.
Attachment data = new Attachment(file, MediaTypeNames.Application.Octet);
// Add time stamp information for the file.
ContentDisposition disposition = data.ContentDisposition;
disposition.CreationDate = System.IO.File.GetCreationTime(file);
disposition.ModificationDate = System.IO.File.GetLastWriteTime(file);
disposition.ReadDate = System.IO.File.GetLastAccessTime(file);
// Add the file attachment to this e-mail message.
message.Attachments.Add(data);

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e4yzc0pl3#

像这样更正代码

System.Net.Mail.Attachment attachment;
attachment = new System.Net.Mail.Attachment("your attachment file");
mail.Attachments.Add(attachment);

http://csharp.net-informations.com/communications/csharp-email-attachment.htm
希望这对你有帮助。
里基

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htzpubme4#

提示：如果在之后添加附件，则附件文件路径会覆盖邮件正文，因此请先添加附件，后添加正文
邮件.附件.添加（新建附件（文件））;
邮件。正文=“body”;

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mnowg1ta5#

一行回答：

mail.Attachments.Add(new System.Net.Mail.Attachment("pathToAttachment"));

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.net 使用C#向电子邮件添加附件

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