after email deleting attachment file, error “The process cannot access the file because it is being used by another process.”

Question

I am doing an email form. Email has attachments and after attaching files email is sent. Next there is requirement to delete file from server. When I tried to get the file i

Answer 1

This worked for me:

FileStream file = new FileStream(attachment, FileMode.Open, FileAccess.Read);
MemoryStream ms = new MemoryStream();
byte[] bytes = new byte[file.Length];
file.Read(bytes, 0, (int)file.Length);
ms.Write(bytes, 0, (int)file.Length);

objEmail.Attachments.Add(new Attachment(ms, new FileInfo(attachment).Name));

file.Close();
ms.Close();
System.GC.Collect();
System.GC.WaitForPendingFinalizers();
System.IO.File.Delete(attachment);