基于包含电子邮件地址的gridview列发送电子邮件

Question

我可以知道如何根据包含电子邮件地址的gridview列发送电子邮件吗？ 我目前使用asp.net和c＃。我目前也在使用smtp gmail作为电子邮件。

目前，我有一个gridview1包含客户（电子邮件，名称，accountNo）已经退回支票，但我希望发送一个标准的电子邮件，所有这些客户点击一个按钮。我可以知道该怎么办？他们的电子邮件存储在数据库中，并将显示在gridview上。

private void SendEMail(MailMessage mail) 
{ 
    SmtpClient client = new SmtpClient(); 
    client.Host = "smtp.gmail.com"; 
    client.Port = 587; 
    client.EnableSsl = true; 
    client.Credentials = new System.Net.NetworkCredential("@gmail.com", "password"); 

    try 
    { 
     client.Send(mail); 
    } 
    catch (Exception ex) 
    { 
     Console.WriteLine("{0} Exception caught.", ex); 
    } 

Answer 1

最简单的是通过你已经绑定到网格视图的数据集循环。但既然你问到的GridView，这里是如何可以遍历GridView的行

在button_click写这

string email = ""; 
foreach (GridViewRow item in GridView1.Rows) 
{ 
     //considering 1st column contains email address 
     //if not, replace it with correct index 
     email = item.Cells[0].Text; 
     //code to send email 

} 

更新2

更新我的代码使用您sendEmail功能

public void button_click(object sender, EventArgs e) 
{ 
    string email = ""; 
    foreach (GridViewRow item in GridView1.Rows) 
    { 

      //if not, replace it with correct index 
      email = item.Cells[4].Text; 
      //code to send email 
     //reciever email add 
     MailAddress to = new MailAddress(email); 
     //sender email address 
     MailAddress from = new MailAddress("your@email"); 

     MailMessage msg = new MailMessage(); 
     //use reason shown in grid 
     msg.Subject = item.Cells[3].Text; 

     //you can similar extract FName, LName, Account number from grid 
     // and use it in your message body 
     //Keep your message body like 
     str email_msg = "Dear {0} {1}, Your cheque for account number {2} bounced because of the reason {3}"; 
     msg = String.Format(email_msg , item.Cells[0].Text,item.Cells[1].Text,item.Cells[2].Text,item.Cells[3].Text); 
     msg.Body = email_msg ; 
     msg.From = from; 
     msg.To.Add(to); 

     SendEMail(msg); 

    } 
} 

Answer 2

尝试保存在阵列中的电子邮件地址。

然后做一个foreach并发送数组中的电子邮件！

例如：

类：

public SmtpClient client = new SmtpClient(); 
    public MailMessage msg = new MailMessage(); 
    public System.Net.NetworkCredential smtpCreds = new System.Net.NetworkCredential("mail", "password"); 

public void Send(string sendTo, string sendFrom, string subject, string body) 
{ 
    try 
    { 
     //setup SMTP Host Here 
     client.Host = "smtp.gmail.com"; 
     client.Port = 587; 
     client.UseDefaultCredentials = false; 
     client.Credentials = smtpCreds; 
     client.EnableSsl = true; 

     //convert string to MailAdress 

     MailAddress to = new MailAddress(sendTo); 
     MailAddress from = new MailAddress(sendFrom); 

     //set up message settings 

     msg.Subject = subject; 
     msg.Body = body; 
     msg.From = from; 
     msg.To.Add(to); 

     // Send E-mail 

     client.Send(msg); 

    } 
    catch (Exception error) 
    { 
    } 
} 

发送电子邮件：（button_click）

//read the emails from the database and save them in an array. 
//count how many are the emails, ex: int countEmails = SqlClass.Function("select emails from table").Rows.Count; 

string[] emails = new string[countEmails]; 
foreach (string item in emails) 
{ 
    //send e-mail 
    callClass.Send(item, emailFrom, subject, body); //you can adapt the class 
}