尝试登录asp.net MVC应用程序时出现登录页面错误

Question

我正在尝试使用电子邮件登录。它应该替换Login/Signup并在其中显示电子邮件。 它应与电子邮件位于同一布局页面。我可以在模型LoginViewModel model, string returnUrl中看到该值，但returnUrl为空。 我没有足够的想法来解决此问题。谁能帮我。

帐户控制器

// POST: /Account/Login
        [HttpPost]
        [AllowAnonymous]
        [ValidateAntiForgeryToken]
        public async Task<ActionResult> Login(LoginViewModel model, string returnUrl)
        {
            if (!ModelState.IsValid)
            {
                return View(model);
            }

            // This doesn't count login failures towards account lockout
            // To enable password failures to trigger account lockout, change to shouldLockout: true
            var result = await SignInManager.PasswordSignInAsync(model.Email, model.Password, model.RememberMe, shouldLockout: false);
            switch (result)
            {
                case SignInStatus.Success:
                    return RedirectToLocal(returnUrl);
                case SignInStatus.LockedOut:
                    return View("Lockout");
                case SignInStatus.RequiresVerification:
                    return RedirectToAction("SendCode", new { ReturnUrl = returnUrl, RememberMe = model.RememberMe });
                case SignInStatus.Failure:
                default:
                    ModelState.AddModelError("", "Invalid login attempt.");
                    return View(model);
            }
        }

Login.cshtml

<div class="col-md-4">
            @using (Html.BeginForm("Login", "Account", new { ReturnUrl = ViewBag.ReturnUrl }, FormMethod.Post, new { @class = "form-horizontal", role = "form" }))
            {
                @Html.AntiForgeryToken()

                @Html.ValidationSummary(true, "", new { @class = "text-danger" })


                <div class="card card-body">
                    <form action="#">
                        <div class="form-group">
                            <label for="email">Mobile Number / Email ID</label>

                            @Html.TextBoxFor(m => m.Email, new { @class = "form-control form-control-sm", placeholder = "Mobile Number / Email ID" })
                            @Html.ValidationMessageFor(m => m.Email, "", new { @class = "text-danger" })
                        </div>
                        <div class="form-group">
                            <label for="password">Password</label>
                            @Html.PasswordFor(m => m.Password, new { @class = "form-control form-control-sm password-input", placeholder = "Password" })
                            @Html.ValidationMessageFor(m => m.Password, "", new { @class = "text-danger" })
                        </div>
                        <div class="form-group">

                            <input type="checkbox" name="remember-password" checked>
                            <label for="">remember me for 30 days</label><span class="float-right forgot-pass"> <a href="#">forgot Password?</a></span>
                        </div>
                        <div class="form-group">
                            <input type="checkbox" name="remember-password" id="remember-pass-check">
                            <label for="">Login with OTP instead of password</label>
                        </div>
                        <div class="form-group">
                            <input type="submit" value="Login" class="btn btn-primary btn-block">
                        </div>

_Layout

            <div class="row d-flex align-items-center">
                <div class="col-md-5 col-sm-6 col-6 d-flex align-items-center">
                    <i class="fa fa-bars fa-2x menu-btn mr-3"></i>
                    <div class="logo">
                        <a href="@Url.Action("Index", "Home")" id="main-logo">
                            <img class="img-fluid" src="~/Content/images/logo-white.png" alt="">
                        </a>
                    </div>
                </div>
                <div class="col-md-7 col-sm-6 col-6 second-col d-flex align-items-center">

                    <li>
                        @Html.ActionLink("Login / Signup", "Login", "Account", null, new { @class = "btn btn-outline-primary ml-3" })

                    </li>
                </div>
            </div>
        </div>

    </nav>

    <div class="body-content">
        @RenderBody()
    </div>