sending email with win application?

Vikas Ahlawat

I m sending email through window application with attachment when the mail successfully sent but after send mail i want to delete the attachment file.
But it give error
please help me
code is below
if (File.Exists(@"C:\abc.txt"))
                {
                    //File.Delete(@"C:\abc.txt");
                    MailMessage mail = new MailMessage();
                    mail.To.Add("[email protected]");
                    mail.From = new MailAddress("[email protected]");
                    mail.Subject = "Email using Gmail";

                    Attachment attfile = new Attachment(@"C:\abc.txt");

                    mail.Attachments.Add(attfile);
                    string Body = "Hi, this mail is to test sending mail" +
                                  "using Gmail in ASP.NET";
                    mail.Body = Body;
                    mail.IsBodyHtml = true;
                    SmtpClient smtp = new SmtpClient();
                    smtp.Host = "smtp.gmail.com"; //Or Your SMTP Server Address
                    smtp.Credentials = new System.Net.NetworkCredential
                         ("[email protected]", "password");
                    //Or your Smtp Email ID and Password
                    smtp.EnableSsl = true;
                    smtp.Send(mail);

                    File.Delete(@"C:\abc.txt");// when i m deleting this file it give error that it is being used by another process

                    MessageBox.Show("email sent successfully");

                }

7 Replies

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Vikas Ahlawat16y ago
my problem is solved by
attfile.Dispose();
Dushan Stankovic16y ago
System.Net.Mail.MailMessage must have default constructor (without parameters).

I use VS2008 pro and VS2010 ultimate and code I post you work fine on both IDE.
Vikas Ahlawat16y ago
@dushan
i have tried using(MailMessage mm = new MailMessage())
but it gives error that mailmessage does not take 0 argument.
Dushan Stankovic16y ago
Just use code like I gave you earlier.

using(MailMessage mm = new MailMessage())
{
//here put your code for sending mail. After this block of code ends that code will be disposed and your file will be leaved by process who use it.
}

File.Delete(@"c:\abc.txt");
Vikas Ahlawat16y ago
When i have attached the file , then i can't able to delete it, because after attaching, when i want to delete the file then it show can't access it is used by another process,
So what i can do that attaching process leave this file after sent mail?
why attaching process not leave it?
Dushan Stankovic16y ago
Do like this and it will work:

using (MailMessage mail = new MailMessage())
            {
                mail.To.Add("[email protected]");
                mail.From = new MailAddress("[email protected]");
                mail.Subject = "Email using Gmail";

                Attachment attfile = new Attachment(@"C:\abc.txt");

                mail.Attachments.Add(attfile);
                string Body = "Hi, this mail is to test sending mail" +
                              "using Gmail in ASP.NET";
                mail.Body = Body;
                mail.IsBodyHtml = true;
                SmtpClient smtp = new SmtpClient();
                smtp.Host = "smtp.gmail.com"; //Or Your SMTP Server Address
                smtp.Credentials = new System.Net.NetworkCredential
                     ("[email protected]", "password");
                //Or your Smtp Email ID and Password
                smtp.EnableSsl = true;
                //    smtp.Send(mail);
                MessageBox.Show("email sent successfully");
            }
            File.Delete(@"C:\abc.txt");// when i m deleting this file it give error that it is being used by another process
Crish16y ago
hi

try below code..
FilePath = Server.MapPath("../foldername" + filename);
public void DeleteFilePhysically(string FilePath)
    {
        FileInfo NewFilePath = new FileInfo(FilePath);

        if (NewFilePath.Exists)
            File.Delete(NewFilePath.ToString());
    }

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that solved your problem!

sending email with win application?

attfile.Dispose();