Question

I’ve got a auto-generated Create action in my controller, I’ve changed things a little, I have to modify the submitted model before I call ModelState.IsValid().

But the IsValid() is still saying its failed, I think this is because it goes off the received parameter, and ignores the changes I’ve made? How can I get it to validate after I’ve changed things?

Thanks

Controller code:

[HttpPost]
        [CaptchaValidator]
        [AcceptVerbs(HttpVerbs.Post)]
        public ActionResult Register(User user, bool captchaValid)
        {
            user.prepareUserForCreation();
            if (ModelState.IsValid && captchaValid)
            {
                db.Users.Add(user);
                db.SaveChanges();
                return RedirectToAction("Index");
            }

            ViewData["captchaValidationMessage"] = captchaValid ? "" : "Your words didn't match, please try again";

            return View(user);
        }

Prepare method:

public void prepareUserForCreation()
        {
            this.DateCreated = DateTime.Now;
            this.LastSeen = DateTime.Now; //TODO remove this
            this.IsActivated = true; //TODO remove this
        SecurityHelper.HashPassword(this);
        }

Basically its saying password is null.

Answer 1

You must use ModelState.Clear(); before you use prepare method and then call TryValidateModel(user) to validate it