public ActionResult Register(RegisterModel newUser)
        {
            if (ModelState.IsValid)
            {
                var user = _userService.GetByUserName(newUser.UserName);
                if (user != null)
                {
                    ModelState.AddModelError("UserName", "The user name you entered already exists");
                    return View(newUser);
                }

                if (newUser.Password.Contains(newUser.UserName))
                {
                    ModelState.AddModelError("", "User name and password can't be equal.");
                    return View(newUser);
                }

                var membershipUser = ((UserMembershipProvider)Membership.Provider).CreateUser(newUser);
                if (membershipUser != null)
                {
                    if (newUser.Avatar != null)
                    {
                        SetUserAvatar((Guid)membershipUser.ProviderUserKey, newUser.Avatar);
                    }
                    FormsAuthentication.SetAuthCookie(newUser.UserName, false);
                    return RedirectToAction("Index", "Home");
                }
                else
                {
                    ModelState.AddModelError("", "Eror registration.");
                    return View(newUser);
                }
            }
            return View(newUser);
        }
        public MembershipUser CreateUser(RegisterModel newUser)
        {
            var membershipUser = GetUser(newUser.UserName, false);

            if (membershipUser != null)
            {
                return null;
            }
            else
            {
                var bllUser = Mapper.Map<BllUser>(newUser);
                bllUser.CreateDate = DateTime.Now;
                bllUser.Password = Crypto.HashPassword(bllUser.Password);
                userService.Create(bllUser);
                membershipUser = GetUser(newUser.UserName, false);
                return membershipUser;
            }
        }