3

最后，当我尝试删除“foreach”循环中的文件时，我收到了错误消息。

我知道我需要在某处使用关键字“使用”，但我不确定在哪里以及如何使用。

private void btnEmailIntegrationFiles_Click(object sender, EventArgs e)
{
    DialogResult EmailWarningMsg = MessageBox.Show("You're about to email the Integration IAT text files. Are you sure?", "WARNING!", MessageBoxButtons.YesNo, MessageBoxIcon.Warning, MessageBoxDefaultButton.Button2);

    if (EmailWarningMsg == DialogResult.Yes)
    {
        if (Directory.GetFiles(AppVars.NetworkIntegrationFileLocation).Length == 0)
        {
            MessageBox.Show("The folder is empty. Please create the files before sending it.", "Error!", MessageBoxButtons.OK, MessageBoxIcon.Error);
        }
        else
        {
            if (Directory.GetFiles(AppVars.NetworkIntegrationFileLocation).Length != 4)
            {
                MessageBox.Show("The folder does not contain exactly 4 files.", "Error!", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
            else
            {
                Email email = new Email();

                email.SendEmailToFinalDestinationWithAttachments(AppVars.DBTeamEmail, AppVars.ChrisWhitmoreEmail, AppVars.DBTeamEmail, "Integration Files", "Please see integration files attached.");
            }
        }

        PopulateListViewWithPoliciesAvailableToHoldBack();

        string[] files = Directory.GetFiles(AppVars.NetworkIntegrationFileLocation);

        foreach (string file in files)
        {
            File.Delete(file);
        }
    }
}

我将如何使用关键字using“发送电子邮件”，以便在尝试删除作为附件通过电子邮件发送的那些文件时不会遇到此错误消息？

这是发送电子邮件类：

public void SendEmailToFinalDestinationWithAttachments(string EmailFrom, string EmailTo, string EmailCC, string EmailSubject, string EmailBody)
        {
            try
            {
                MailMessage EmailMessage = new MailMessage();
                SmtpClient smtp = new SmtpClient(AppVars.SMTPClient, AppVars.SMTPClientPort);
                smtp.UseDefaultCredentials = false;
                EmailMessage.IsBodyHtml = true;
                EmailMessage.To.Add(EmailTo);
                EmailMessage.CC.Add(EmailCC);
                EmailMessage.CC.Add(user);
                EmailMessage.Subject = EmailSubject;
                EmailMessage.From = new MailAddress(EmailFrom);
                EmailMessage.Body = EmailBody;

                string[] files = Directory.GetFiles(AppVars.NetworkIntegrationFileLocation, "*" + DateTime.Now.ToString("yyyyMMdd") + "*");

                foreach (string file in files)
                {
                    EmailMessage.Attachments.Add(new Attachment(file));
                }

                smtp.Send(EmailMessage);
            }
            catch (Exception e)
            {
                MessageBox.Show(e.Message);
            }
        }
4

1 回答 1

2

您需要将您的电子邮件类修改为：

using (MailMessage EmailMessage = new MailMessage()) {
    ...
    smtp.Send(EmailMessage);
}
于 2012-08-07T19:55:16.620 回答