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Question

我有一個DataGrid顯示不同的行發送郵件給多個收件人，每個人都有其發送電子郵件到例如

ROW1 COL1日本COL3該行標準 匹配誰多個收件人鏈接COL4（鏈接發送電子郵件給所有日本的用戶）...................

2行COL1瑞典CO3 COL4（鏈接發送電子郵件給所有瑞典的使用者）

現在，當用戶點擊鏈接時，另一個頁面打開，另一個網格視圖控件顯示該行的所有收件人，但在發送電子郵件之前給所有收件人。

問題是，它需要大量的時間，我在想，如果我的做法是錯的我在數據行創建於各行的郵件對象

DataView dv; 

if (dv.Count > 0) 
{ 
    foreach (DataRow row in dv.Table.Rows) 
    { 
     StringBuilder sbEmailBody = new StringBuilder(); 
     sbEmailBody.Append("<div id='mail' style='height:400px;width:750px; padding:10px; margin: 0 auto; '>"); 
     sbEmailBody.Append("Hi " + row["FirstName"].ToString() + ", <br/><br/>"); 
     sbEmailBody.Append("You have registered with siteName, your details match with the following clinical trial."); 
     sbEmailBody.Append("Please contact the below trial representative for further details</br></br>"); 
     sbEmailBody.Append("<b>Trial Name:</b> " + Session["trialName"].ToString() + "</br>"); 
     sbEmailBody.Append("<b>Contact Name:</b> " + Session["recName"].ToString() + "</br>"); 
     sbEmailBody.Append("<b>Contact Email:</b> " + Session["username"].ToString() + "</br>"); 
     sbEmailBody.Append("<b>Contact Telephone:</b> " + Session["tele"].ToString() + "</br>"); 
     sbEmailBody.Append("<hr> </hr>"); 
     sbEmailBody.Append("<a href='www.sitename.com' style=text-decoration:none><span id='logo' style='font-size:X-Large;font-weight:bold;color:Black;'>siteName</span></a><br/>"); 
     sbEmailBody.Append("<span id='stopEmail' style='font-size:Smaller;'>"); 
     sbEmailBody.Append("if you want to stop receiving emails from sitename please click <a href='www.bbc.co.uk' style=text-decoration:none>here</a>"); 
     sbEmailBody.Append("</span>"); 
     sbEmailBody.Append("</div>"); 


     MailMessage mailMessage = new MailMessage("siteEmail@email.com", row["EmailAdd"].ToString()); 
     mailMessage.Subject = "Clinical trial recruiter shown interest in your profile"; 
     mailMessage.BodyEncoding = System.Text.Encoding.UTF8; 
     mailMessage.Body = sbEmailBody.ToString(); 
     mailMessage.IsBodyHtml = true; 
     SmtpClient smtpClient = new SmtpClient(); 

     smtpClient.Send(mailMessage); 


    } 
} 

Answer 1

您可以創建一個Task做郵件爲你。

Task.Run(() => YourMailMethod()); 

在YourMailMethod方法，你可以把你現在已經是代碼。

該任務將在後臺運行。

Answer 2

你可以做一個異步operstion像thois緊固事情

公共委託無效的SendMessage（SmtpClient客戶端，消息MAILMESSAGE）;

SendMessage Smessage = new SendMessage(ResultCallback); 
      //smtp.Send(message); 
      Smessage.BeginInvoke(smtpClient, message, null, null); 





public void ResultCallback(SmtpClient client, MailMessage m) 
     { 
      try 
      { 
       client.Send(m); 
       client.Dispose(); 
       m.Dispose(); 
      } 
      catch 
      { 

      } 
     }