15 How to make Login System in ASP.NET MVC | Register, Login , Authentic...

Welcome to ASP.NET MVC Tutorial on How to make Login System.
Just Put this code in home Controller.

  public ActionResult login()

        {

            return View();

        }



        [HttpPost]

        public ActionResult login(user user)

        {

            StudentContext db = new StudentContext();

         

            var userLoggedIn = db.users.SingleOrDefault(x => x.username == user.username && x.password == user.password);



            if (userLoggedIn != null)

            {

                ViewBag.message = "loggedin";

                ViewBag.triedOnce = "yes";

                return RedirectToAction("mainpage", "home",new { username= user.username });

            }

            else

            {

                ViewBag.triedOnce = "yes";

                return View();

            }





        }
And Paste this code in Home Folder's Login.cshtml

@model ASPtutorial.Models.user



@{

    ViewBag.Title = "login";

}



<h2>login</h2>



@using (Html.BeginForm())

{

    @Html.AntiForgeryToken()



    if (ViewBag.message == null && ViewBag.triedOnce == "yes")

    {

        <h4>Username or Password not matched, please log in again or register.@Html.ActionLink("Register", "Register")</h4>

    }



    <div class="form-horizontal">

        <h4>user</h4>

        <hr />

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

        <div class="form-group">

            @Html.LabelFor(model => model.username, htmlAttributes: new { @class = "control-label col-md-2" })

            <div class="col-md-10">

                @Html.EditorFor(model => model.username, new { htmlAttributes = new { @class = "form-control" } })

                @Html.ValidationMessageFor(model => model.username, "", new { @class = "text-danger" })

            </div>

        </div>



        <div class="form-group">

            @Html.LabelFor(model => model.password, htmlAttributes: new { @class = "control-label col-md-2" })

            <div class="col-md-10">

                @Html.PasswordFor(model => model.password, new { htmlAttributes = new { @class = "form-control" } })

                @Html.ValidationMessageFor(model => model.password, "", new { @class = "text-danger" })

            </div>

        </div>



        <div class="form-group">

            <div class="col-md-offset-2 col-md-10">

                <input type="submit" value="Login" class="btn btn-default" />

            </div>

        </div>

    </div>

}



<div>

    @Html.ActionLink("Back to List", "Index")

</div>

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