CODEWITHSUNDEEP
asp.net-mvcasp.net-core.net-coreitextidisposable
Saurabh Nachankar
Saurabh Nachankar

Reputation: 330

IOException: The process cannot access the pdf file because it is being used by another process

I have created PDF file using iTextsharp. while attaching to the email it gives this error :

IOException: The process cannot access the pdf file because it is being used by another process.

I tried dispose() and using statement to dispose the object but it didn't worked.

var font8 = FontFactory.GetFont(FontFactory.HELVETICA, 8);
                var font9 = FontFactory.GetFont(FontFactory.HELVETICA, 9);
                var boldfont8 = FontFactory.GetFont(FontFactory.HELVETICA_BOLD, 8);
                var boldfont9 = FontFactory.GetFont(FontFactory.HELVETICA_BOLD, 9);
                var boldfont10 = FontFactory.GetFont(FontFactory.HELVETICA_BOLD, 10);
                bool pageset = false;
                Document myDocument = null;
                var mypagesize = new iTextSharp.text.Rectangle(595f, 421f);
                myDocument = new Document(mypagesize, 36, 36, 24, 24);

                PdfWriter writer = PdfWriter.GetInstance(myDocument, new FileStream(filename1, FileMode.Create));

PdfPTable tablehead = new PdfPTable(1);
                tablehead.TotalWidth = 530f;
                tablehead.LockedWidth = true;
                float[] widthshead = new float[] { 1f };
                tablehead.SetWidths(widthshead);
                tablehead.SpacingBefore = 2f;

 myDocument.Open();

                if (email == "email")
                {
                    makeslip(myDocument, _payslip, _payroll.date2, notes);
                    myDocument.Close();

                    ((IDisposable)myDocument).Dispose(); // tried this but didn't work

                    EmailController Sendmail = new EmailController(_contextAccessor, _env);
                    Sendmail.SendEmail(1, "[email protected]", "", "", "TESTSubject", "TEST", filename1);
                }


// Email Method
 public IActionResult SendEmail(int id, string Email1, string Email2, string Email3, string EmailSubject, string EmailMessage, [Optional] string filename1)
        {

mailMessage.Subject = EmailSubject;
                mailMessage.Body = EmailMessage;
                mailMessage.IsBodyHtml = true;
                if (filename1 != null)
                {
                    Attachment data = new Attachment(filename1); // At this point it is giving IOException
                    mailMessage.Attachments.Add(data);
                    client.Send(mailMessage);
                    data.Dispose();
                }
}

Upvotes: 0

Views: 2090

Answers (2)

Saurabh Nachankar
Saurabh Nachankar

Reputation: 330

I finally found a way through using statement.

public ActionResult test()
{
 using (FileStream fileStream = new FileStream("TESTPDF", FileMode.Create, FileAccess.ReadWrite))
            {
                return File(fileStream, "application/pdf", "abc.pdf");
            }
        }

Upvotes: 2

Bruno Lowagie
Bruno Lowagie

Reputation: 77546

This can never work:

PdfWriter writer = PdfWriter.GetInstance(myDocument, new FileStream(filename1, FileMode.Create));
builder.Attachments.Add(filename1);
System.IO.File.Delete(filename1);

You create a writer object that writes to a file filename1. That stream expects PDF bytes created with iText.

It is unclear what you do in this line: builder.Attachments.Add(filename1); We have no idea what builder is about, but I assume that it is totally irrelevant to your question.

However: even before you have added any PDF bytes, and more specifically: even before the file stream is closed, you already try to delete the file filename1. That isn't possible because that file is still in use: you never added any PDF content and you didn't close it.

Related questions:

Summary:

The error explains that you need to close the FileStream before you delete the file. Close that stream!

Upvotes: 0

Related Questions