Question

我正在向单个电子邮件发送多个附件。但我的要求是使用foreach循环发送sendig文件。这里我通过创建两个附件内容和两个文件名来发送附件，这不是一个完美的代码。请帮我。提前谢谢你。

**Here it is send mail method:**

public static void SendMail(EmailDetails ObjEmailDtl){

try

{

SmtpClient client = new SmtpClient();         

client.DeliveryMethod = SmtpDeliveryMethod.Network;   

client.EnableSsl = false;    

   string hostName = string.Empty;

 using (eCoreDbEntities db = new eCoreDbEntities())

  {
  hostName = db.Parameters.Where(m => m.Name == "SMTP").FirstOrDefault().Value;
  }

 client.Host = hostName;

            client.Port = 25;

            MailMessage msg = new MailMessage();
            msg.From = new MailAddress("contactus@karvyclick.com");
            if (!string.IsNullOrEmpty(ObjEmailDtl.ToMailId))
            {
                string[] arrCC = ObjEmailDtl.ToMailId.Trim().Split(',');
                foreach (var item in arrCC)
                {
                    msg.To.Add(new MailAddress(item));
                }
            }

            if (!string.IsNullOrEmpty(ObjEmailDtl.CCList))
            {
                string[] arrCC = ObjEmailDtl.CCList.Trim().Split(',');
                foreach (var item in arrCC)
                {
                    msg.CC.Add(new MailAddress(item));
                }
            }

            msg.Subject = ObjEmailDtl.Subject;
            msg.IsBodyHtml = true;
            msg.Body = ObjEmailDtl.Body;
            if (ObjEmailDtl.AttachmentContect != null)
            {                   
                Attachment att = new Attachment(new MemoryStream(ObjEmailDtl.AttachmentContect), ObjEmailDtl.AttachmentName);
                msg.Attachments.Add(att);       
            }
            if (ObjEmailDtl.AttachmentContect1 != null)
            {
                Attachment att = new Attachment(new MemoryStream(ObjEmailDtl.AttachmentContect1), ObjEmailDtl.AttachmentName1);
                msg.Attachments.Add(att);
            }
            client.Send(msg);
        }
        catch (Exception ex)
        {
            Common.WriteLog("Common-SendMail", "", ex.Message);
        }

    }

这是我的模型类，我添加了多个附件内容名称和多个文件名

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace Services.Models
{
public class CommonModel
{
    public class EmailDetails
    {
        public string ToMailId { get; set; }
        public string Subject { get; set; }
        public string Body { get; set; }
        public string CCList { get; set; }
        public byte[] AttachmentContect { get; set; }
        public byte[] AttachmentContect1 { get; set; }
        public string AttachmentName { get; set; }
        public string AttachmentName1 { get; set; }
    }
}
}

这是我创建文件的代码

byte[] file1 = Encoding.ASCII.GetBytes(str1.ToString());
byte[] File = Encoding.ASCII.GetBytes(str.ToString());
EmailDetails objEmail = new EmailDetails();
var tomail = db.Parameters.ToList().Where(m => m.Name == "ToList" && 
m.Category == "DynamicReport").FirstOrDefault().Value;
                objEmail.ToMailId = tomail;
                objEmail.AttachmentContect = File;
                objEmail.AttachmentContect1 = file1;
                objEmail.Subject = "Katalister Dynamic Report";
                objEmail.Body = "&nbsp; Dear Leader,<br/><br/>   &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Please find the attached Katalister Daily Report and Order Details Report.<br/><br/><br/><br/> Team Karvy";
                objEmail.CCList = db.Parameters.ToList().Where(m => m.Name == "CCList" && m.Category == "DynamicReport").FirstOrDefault().Value;
                objEmail.AttachmentName = "katalister_daily_report_" + DateTime.Now + ".xls";
                objEmail.AttachmentName1 = "OrderDetails_BD.xls";
                Common.SendMail(objEmail);

Answer 1

您应该创建一个表示附件详细信息的类，如下所示。

public class AttachmentDetails
{
    public byte[] Content {get;set;}
    public string Name {get;set;}
}

然后在EmailDetails类中使用此类对象的集合。

public class EmailDetails
{
    public string ToMailId { get; set; }
    public string Subject { get; set; }
    public string Body { get; set; }
    public string CCList { get; set; }
    public List<AttachmentDetails> Attachments {get;set;}
}

然后您应该按照以下方式填充附件。

byte[] file1 = Encoding.ASCII.GetBytes(str1.ToString());
byte[] File = Encoding.ASCII.GetBytes(str.ToString());
EmailDetails objEmail = new EmailDetails();
var tomail = db.Parameters.ToList().Where(m => m.Name == "ToList" && 
m.Category == "DynamicReport").FirstOrDefault().Value;
objEmail.ToMailId = tomail;
objEmail.Attachments = new List<AttachmentDetails>();
var attachment = new AttachmentDetails();
attachment.Name = "katalister_daily_report_" + DateTime.Now + ".xls";
attachment.Content = File;
objEmail.Attachments.Add(attachment);

attachment = new AttachmentDetails();
attachment.Name = "OrderDetails_BD.xls";
attachment.Content = file1;
objEmail.Attachments.Add(attachment);

objEmail.Subject = "Katalister Dynamic Report";
objEmail.Body = "&nbsp; Dear Leader,<br/><br/>   &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Please find the attached Katalister Daily Report and Order Details Report.<br/><br/><br/><br/> Team Karvy";
objEmail.CCList = db.Parameters.ToList().Where(m => m.Name == "CCList" && m.Category == "DynamicReport").FirstOrDefault().Value;

然后在Attachment方法中循环SendMail属性，如下所示。

//Skipping the other code before this in the method.
msg.Subject = ObjEmailDtl.Subject;
        msg.IsBodyHtml = true;
        msg.Body = ObjEmailDtl.Body;
foreach(var attachment in ObjEmailDtl.Attachments)
{
    Attachment att = new Attachment(new MemoryStream(attachment.Content), attachment.Name);
            msg.Attachments.Add(att);      
}
// Other code in the method.

这可以帮助您解决问题。

发送多个附件到邮件

1 个答案: