为不同类型的用户更新_Layout

Question

我在Asp.net MVC 4上使用MVC模板，我有一个UserProfile（带有UserType的t类（此字段只接收2个值，“Ouvinte”和“Musico” “）字段，就像应用程序中的角色一样，对吗？

我的想法是，在_Layout.cshtml上进行验证，以了解登录应用程序的UserType是什么，并在顶部修改导航栏。

这是我在_Layout上的NAVBAR

<div class="navbar navbar-inverse navbar-fixed-top">
      <div class="container">
        <div class="navbar-header">
          <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
          </button>
           <a class="navbar-brand" href="#">@Html.ActionLink("your logo here", "Index", "Home")</a>
        </div>
        <div class="collapse navbar-collapse">
          <ul class="nav navbar-nav">
            <li>@Html.ActionLink("Home", "Index", "Home")</li>
            <li>@Html.ActionLink("Usuario", "Usuario", "Home")</li>
            <li>@Html.ActionLink("Musico", "Musico", "Home")</li>
          </ul>
          <ul class="nav navbar-nav navbar-right">   

              @if (!Request.IsAuthenticated){ //IF USER IS NOT LOGGED.

                            <li>@Html.ActionLink("Register", "Register", "Account")</li>
                            <li>@Html.ActionLink("Log In", "Login", "Account")</li>
                        }
                        else //DO A ELSEIF HERE IF THE USER HAS THE USERTYPE Musico
                        {
                            <li>@Html.ActionLink("Manage Account", "Manage", "Account")</li>
                            <li>@using (Html.BeginForm("LogOff", "Account", FormMethod.Post, new { id = "logoutForm" })) {
                                @Html.AntiForgeryToken()
                            <a href="javascript:document.getElementById('logoutForm').submit()">Log off</a>}</li>
                        } //ANOTHER ELSE HERE TO VERIFY IF THE USER HAS USERTYPE Ouvinte
          </ul>
        </div><!--/.nav-collapse -->
      </div>

    </div>

我的疑问是，如何在此处调用userProfile进行这些验证？