[英]c# failed delete file, it is being used by another process
我的代碼怎么了? 我想念什么嗎? 我未能刪除文件,它顯示錯誤“正在被另一個進程使用。請幫助
string filename = "C:/File/testExport_1234.pdf";
string htmlfile = "C:/file/1234.html";
using (StreamReader reader = new StreamReader(htmlfile))
{
MailMessage message = new MailMessage(emailFrom, emailTo, emailSubject, reader.ReadToEnd());
message.IsBodyHtml = true;
Attachment data = new Attachment(filename, MediaTypeNames.Application.Octet);
data.Name = filename; // set name here
message.Attachments.Add(data);
SmtpClient client = new SmtpClient("smtp.live.com");
client.UseDefaultCredentials = false;
client.Port = 587;
client.EnableSsl = true;
client.Credentials = new NetworkCredential("xxxxx@hotmail.com", "xxxxx", "hotmail.com");
try
{
client.Send(message);
}
catch (Exception ex)
{
Console.WriteLine("Exception caught in CreateMessageWithAttachment(): {0}",
ex.ToString());
}
}
if (File.Exists(filename))
{
File.Delete(filename);
//File.Delete(path + code + ".html");
}
您需要處理SMTP客戶端以及MailMessage。 Using
語句:
using (MailMessage Message = new MailMessage)
{ .....
.......
using (SmtpClient client = new SmtpClient)
{
.........
}
}
要處置附件,請致電:
DisposeAttachments();
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