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could not send attachment but only email asp.net

Posted on 2014-01-08
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Last Modified: 2014-01-14
tried sending email with attachment,

just that it could not send the attachment but only the email

error :
System.IO.IOException: The process cannot access the file 'C:..\Websites\SendEmailwithAttachment\timesheet.xlsx' because it is being used by another process.
i guess this works:

eventhough it is checked from the task manager it is not running there,

          
            var smtp = new SmtpClient
            {
                Host = "smtp.gmail.com",
                Port = 587,
                EnableSsl = true,
                DeliveryMethod = SmtpDeliveryMethod.Network,
                UseDefaultCredentials = false,
                Credentials = new NetworkCredential("asdasd@gmail.com", "pwd"),
            };
            using (var message = new MailMessage("sadada@gmail.com", "sadsads@gmail.com")
            {
                Subject = "sadsasdaad",
                Body = "assadsadsada",

                

                

            })
            {

             //   string strFileName = null;

                if (inpAttachment2.PostedFile != null)
                {
                    HttpPostedFile attFile = inpAttachment2.PostedFile;
                    int attachFileLength = attFile.ContentLength;
                    if (attachFileLength > 0)
                    {
                        strFileName = Path.GetFileName(inpAttachment2.PostedFile.FileName);
                        inpAttachment2.PostedFile.SaveAs(Server.MapPath(strFileName));

                        Attachment attach = new Attachment(Server.MapPath(strFileName));

                        //MailAttachment attach = new MailAttachment(Server.MapPath(strFileName));
                        message.Attachments.Add(attach);
                        attach.Dispose();
                        //    attach2 = strFileName;
                    }
                }

                smtp.Send(message);
                message.Dispose();
            }

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Question by:doramail05
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3 Comments
 
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Expert Comment

by:Kishan Zunjare
ID: 39764708
Hi doramail05,

Your problem seems to be caused by not released memory stream;

using (Attachment data = new Attachment("FileName",  MediaTypeNames.Application.Octet))
{
    // 1. Adding attachment to the e-mail message
    // 2. Sending out the e-mail message
}


The using statement will ensure that the Dispose method is called when the object gets out of the scope.

Also calling Dispose on the SmtpClient, doesn't call it on the Attachments.

Hope this will help you.

-Kishan
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Accepted Solution

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doramail05 earned 0 total points
ID: 39770162
hi there

the problem solved,

it is being called the attachment at the above code and it is being called again afterwards

which rectify the problem
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Author Closing Comment

by:doramail05
ID: 39778798
discover out on own afterwardss
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