如何從後臺工作的每個狀態的表單

Question

我有一個簡單的基於Windows的應用程序。我用BackgroundWorker一個接一個發送郵件。 這裏是DoWork事件處理程序代碼

private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e) 
{ 
    MailsSample Mails = e.Argument as MailsSample; 
    string readings = "To : " + Mails.To_EmailsID + "- "; 

    char[] delimiterChars = { ',' }; 
    string[] Emails = Mails.To_EmailsID.Split(delimiterChars); 

    for (int i = 0; i < Emails.Length; i++) 
    { 
     try 
     { 

      SmtpClient smtp = new SmtpClient(Mails.SMTP, Mails.PORT); 
      MailMessage msg = new MailMessage(Mails.From_Email, Emails[i], Mails.subject, Mails.body); 
      string mto = null; 
      smtp.UseDefaultCredentials = true; 
      smtp.Credentials = new NetworkCredential(Mails.From_Email, Mails.password); 
      smtp.EnableSsl = true; 

      msg.IsBodyHtml = true; 
      msg.Subject = Mails.subject; 

      //if (textBox1.Text != "") 
      //{ 
      // Attachment at = new Attachment(textBox1.Text); 
      // msg.Attachments.Add(at); 
      //} 


      msg.Body = Mails.body; 
      mto = Emails[i]; 
      msg.IsBodyHtml = true; 
      smtp.Send(msg); 


      readings += "Sent Successfully."; 
     } 
     catch (Exception ex) 
     { 
      readings += "Error : " + ex.Message; 
     } 
     //Mails.t.AppendText (Environment.NewLine +readings); 
    } 
    e.Result = readings; 
} 

這裏是一個循環，我想取從循環，存儲在「讀數」變量的每一個狀態。我希望從任何文本框中的一個一個的前面單個狀態（讀數）。 有沒有可能在BackgroundWorker？

Answer 1

我回答

(sender as BackgroundWorker).ReportProgress((int)(100.0/totalSteps * i), null); 

    void backgroundWorker1_ProgressChanged(object sender, ProgressChangedEventArgs e) 
    { 

     progressBar1.Value =(int) e.ProgressPercentage; 
    }