Question

我有一个场景，我已经完成了一些工作但是为了我的进一步过程，我需要一些帮助。

我有一个导入到网格视图的ExcelSheet，并假设其中有10条记录。现在我要发送一封从GridView检索到的电子邮件和电子邮件，但我希望首先发送电子邮件将发送到前5条记录，然后在5秒后发送电子邮件重新发送到接下来的5条记录。

以下是我的电子邮件发送代码：

void Send_Mail()
    {
        try
        {
            string Pass, FromEmailid, HostAdd;
            foreach (GridViewRow gr in DataGridView.Rows)
            {
                HostAdd = ConfigurationManager.AppSettings["Host"].ToString();
                FromEmailid = ConfigurationManager.AppSettings["FromMail"].ToString();
                Pass = ConfigurationManager.AppSettings["Password"].ToString();

                Label LblName = gr.FindControl("LblName") as Label;
                Label LblMail = gr.FindControl("LblEmail") as Label;

                string Name = LblName.Text;
                string Mail = LblMail.Text;
                string subject = TxtSubject.Text;

                SmtpClient client = new SmtpClient();
                MailMessage msg = new MailMessage();

                NetworkCredential credentials = new NetworkCredential(FromEmailid, Pass);

                client.Host = HostAdd;
                client.Port = 25;
                client.UseDefaultCredentials = false;
                client.Credentials = credentials;
                client.EnableSsl = true;
                MailAddress from = new MailAddress(FromEmailid);
                msg.IsBodyHtml = true;
                msg.Subject = subject;
                msg.Body = ReadTemplate(Name);
                msg.To.Add(Mail);
                msg.From = from;
                client.Send(msg);
                LblMessage.Text = "Email Send Successfully";
                LblMessage.Visible = true;
            }
        }

        catch (Exception Ex)
        {
            LblMessage.Text = Ex.Message;
            LblMessage.Visible = true;
        }
    }

Answer 1

计算迭代次数（或使用for代替foreach），当您到达第五次迭代时，请设置Thread.Sleep(5000);

类似的东西：

int counter = 0;
foreach (GridViewRow gr in DataGridView.Rows)
{
    if (counter > 0 && counter % 5.0 == 0)
    {
        Thread.Sleep(5000);
    }

//More stuff sending mail...
    counter++;
}

在GridView中从行发送电子邮件

1 个答案: