_NavBar.cshtml

@helper LoggedInUser()
{   
    if (User != null && User.Identity != null && User.Identity.IsAuthenticated)
    { 
        @:Hello, @Html.ActionLink(User.Identity.Name ?? "naam onbekend", "Manage", "Account")
    }
    else
    { 
        @Html.ActionLink("Register", "Register", "Account")
    }
}

@helper ActiveItem(string actionName, string controllerName, string areaName)
{
    if (ViewContext.RouteData.Values["action"].ToString() == actionName &&
            ViewContext.RouteData.Values["controller"].ToString() == controllerName &&
            (ViewContext.RouteData.DataTokens["area"] == null || ViewContext.RouteData.DataTokens["area"].ToString() == areaName))
    {
        @:active
    }
}


<div class="navbar navbar-inverse navbar-fixed-top">
    <div class="navbar-inner">
        <div class="container">
            <button type="button" class="btn btn-navbar" data-toggle="collapse" data-target=".nav-collapse">
                <span class="icon-bar"></span>
                <span class="icon-bar"></span>
                <span class="icon-bar"></span>
            </button>
            <a class="brand" href="#">Cloud Auction</a>
            <div class="nav-collapse collapse">
                <ul class="nav">
                    <li class="@ActiveItem("Index", "Home", null)">@Html.ActionLink("Home", "Index", "Home")</li>
                    <li class="@ActiveItem("About", "Home", null)">@Html.ActionLink("About", "About", "Home")</li>
                    <li class="@ActiveItem("Contact", "Home", null)">@Html.ActionLink("Contact", "Contact", "Home")</li>
                </ul>
                @if (Request.IsAuthenticated)
                {
                <ul class="nav pull-right">
                    <li><div class="nav navbar-text">@LoggedInUser()</div></li>
                    <li class="divider-vertical"></li>
                    <li>
                        <div  class="nav navbar-text">
                    @*<li><a href="javascript:document.getElementById('logoutForm').submit()">Log off</a></li>*@
                        @using (Html.BeginForm("LogOff", "Account", FormMethod.Post, htmlAttributes: new { id = "logoutForm", @class = "navbar-form" })) 
                        {
                            <button type="submit" class="btn-link">Log Off</button>
                            @Html.AntiForgeryToken()
                        }
                        </div>
                    </li>
                </ul>
                }
                else
                {
                <ul class="nav pull-right">
                    <li class="@ActiveItem("Register", "Account", null)">@Html.ActionLink("Register", "Register", "Account", new { ReturnUrl = this.Request.Url.AbsolutePath }, new { id = "registerLink", data_dialog_title = "Registration" })</li>
                    <li class="@ActiveItem("Login", "Account", null)">@Html.ActionLink("Login", "Login", "Account", new { ReturnUrl = this.Request.Url.AbsolutePath }, new { id = "loginLink", data_dialog_title = "Identification" })</li>
                </ul>
                }
            </div><!--/.nav-collapse -->
        </div>
    </div>
</div>

Login.cshtml

@model Auction.Web.Models.LoginModel
@{
    ViewBag.Title = "Log in";
}

<h1>@ViewBag.Title <small>with local or social network account</small></h1>
<div class="row-fluid">
    <div class="span6">
    @using (Html.BeginForm(null, null, new { ReturnUrl = ViewBag.ReturnUrl }, FormMethod.Post, new { @class = "form-horizontal well" }))
    {
        @Html.AntiForgeryToken()
        @Html.ValidationSummary(true)

        <fieldset>
            <legend>using a local account</legend>
            @Html.EditorFor(m => m.UserName, new { @class = "input-small" })

            @Html.EditorFor(m => m.Password, new { @class = "input-small" })

            @Html.EditorFor(m => m.RememberMe)

            <input class="btn btn-primary" type="submit" value="Log in" />
    
            &nbsp; or @Html.ActionLink("Register", "Register") if you don't have an account.
        </fieldset>

    }
    </div>
    <div class="span6">
        @Html.Action("ExternalLoginsList", new { ReturnUrl = ViewBag.ReturnUrl })
    </div>
</div> <!-- row-fluid -->

@section Scripts {
    @Scripts.Render("~/bundles/jqueryval")
}