public async Task<IActionResult> Register(UserRegister model, string returnUrl = null)
        {
            if (ModelState.IsValid)
            {
                var checkUser = await _userManager.FindByEmailAsync(model.Email);
                if(checkUser != null)
                {
                    ModelState.AddModelError("","Email already exists");
                    return View(model);
                }
                User user = new User { Name = model.Name, Designation = model.Designation, Role = model.Role, Location = model.Location, ProfileImage = "assets/images/users.png" };
                long userId = _userServices.AddNewuser(user);
                var appUser = new AppUser { UserName = model.Email, Email = model.Email, UserId = userId };
                var result = await _userManager.CreateAsync(appUser, model.Password);
                if (result.Succeeded)
                {
                    await _signInManager.SignInAsync(appUser, isPersistent: false);
                    if (returnUrl == null)
                        return Redirect("~/home");
                    return Redirect(returnUrl);

                }
                foreach (var error in result.Errors)
                {
                    ModelState.AddModelError("", error.Description);
                }

            }
            return View(model);
        }