<authentication mode="Forms">
      <forms loginUrl="~/Account/Login"/>
    </authentication>

[Authorize]
    public class DepartmentController : Controller
    { etc... }

@model AccountLoginViewModel
@{
    ViewBag.Title = "Login";
}

<div>
    @Html.DisplayFor(m => m.Messages)
</div>

<h1 style="font-weight:bold">Log in!</h1>

<p>Here we can log in: </p>

<form method="post" action="@Url.Action("Login", "Account")">
    <div class="container">
        <br />
        <label for="uname"><b>Username: </b></label>
        @Html.TextBoxFor(m => m.Logins[0].Username, new { placeholder = " Enter Username" })<br /><br />
        <label for="psw"><b>Password: </b></label>
        @Html.PasswordFor(m => m.Logins[0].Password, new { placeholder = " Enter Password" })<br /><br />

        <button type="submit">Login</button>
    </div>
</form>

[HttpPost]
        public ActionResult Login(AccountLoginViewModel accountLoginViewModel)
        {
            AccountLoginViewModel model = new AccountLoginViewModel();

            UserLoginBo _userLoginBo = new UserLoginBo();
            _userLoginBo.Username = accountLoginViewModel.Logins[0].Username;
            _userLoginBo.Password = accountLoginViewModel.Logins[0].Password;

            var response = _userService.Login(_userLoginBo);
            if (response.IsSuccess)
            {
                model.Logins = response.Values;
                return RedirectToAction("Index", "Department");
            }
            else
            {
                model.Messages = response.Messages;
            }

            return View(model);
        }