Retrieving Byte[0]

Question

I'm trying to save files into my Db with this code:

[HttpPost, ActionName("CandidateCreate")]
    [ValidateAntiForgeryToken]
    public IActionResult CandidateCreatePost([Bind("Name,Number,Profile,CV,CVID")]Candidate candidate, IFormFile Corriculum)
    {
        try
        {
            if (ModelState.IsValid)
            {
                //if (Corriculum != null)
                //{
                //    if (Corriculum.Length > 0)
                //    {
                        using (var applicationContext = new ApplicationContext())
                        {
                            byte[] p1 = null;
                            using (var fs1 = Corriculum.OpenReadStream())
                            using (var ms1 = new MemoryStream())
                            {
                                fs1.CopyTo(ms1);
                                p1 = ms1.ToArray();

                            }
                            candidate.CV = p1;
                    //    }
                    //}
                }
                //candidate.CV = p1;
                candidateRepository.Add(candidate);
                candidateRepository.SaveChanges();
                return RedirectToAction("Candidate");
            }
        }


        catch (DbUpdateException /* ex */)
        {
            //Log the error (uncomment ex variable name and write a log.
            ModelState.AddModelError("", "Unable to save changes. " +
                "Try again, and if the problem persists " +
                "see your system administrator.");
        }

        return View();
    }

I have changed my code to this, but Curriculum is always null? why is that?? I'm getting this error "NullReferenceException: Object reference not set to an instance of an object."

Answer 1

一段时间后，我努力使它以这种方式工作：

  [HttpPost, ActionName("CandidateCreate")]
    [ValidateAntiForgeryToken]
    public  IActionResult CandidateCreatePost([Bind("Name,Number,Profile,CV,CVID")] Candidate candidate, IFormFile CV)
    {
        if (ModelState.IsValid)
        {
            if (CV != null)
            {
                if (CV.Length > 0)
                {
                    byte[] p1 = null;
                    using (var fs1 = CV.OpenReadStream())
                    using (var ms1 = new MemoryStream())
                    {
                        fs1.CopyTo(ms1);
                        p1 = ms1.ToArray();

                    }
                    candidate.CVNAME = CV.FileName;
                    candidate.CV = p1;
                    }
                }
            using (var applicationContext = new ApplicationContext())
            {
                candidateRepository.Add(candidate);
                 candidateRepository.SaveChanges();

                return RedirectToAction("Candidate");
            }
        }
        return View();
    }