Bagaimana untuk Menggayakan Pautan Navigasi Aktif dengan Berkesan dalam ASP.NET MVC?

<ul class="nav navbar-nav">
  <li class="active">@Html.ActionLink("Home", "Index", "Home")</li>
  <li>@Html.ActionLink("About", "About", "Home")</li>
  <li>@Html.ActionLink("Contact", "Contact", "Home")</li>
</ul>

public static string IsSelected(this HtmlHelper html, string controllers = "", string actions = "", string cssClass = "selected")
{
    ViewContext viewContext = html.ViewContext;
    bool isChildAction = viewContext.Controller.ControllerContext.IsChildAction;

    if (isChildAction)
        viewContext = html.ViewContext.ParentActionViewContext;

    RouteValueDictionary routeValues = viewContext.RouteData.Values;
    string currentAction = routeValues["action"].ToString();
    string currentController = routeValues["controller"].ToString();

    if (String.IsNullOrEmpty(actions))
        actions = currentAction;

    if (String.IsNullOrEmpty(controllers))
        controllers = currentController;

    string[] acceptedActions = actions.Trim().Split(',').Distinct().ToArray();
    string[] acceptedControllers = controllers.Trim().Split(',').Distinct().ToArray();

    return acceptedActions.Contains(currentAction) && acceptedControllers.Contains(currentController) ?
        cssClass : String.Empty;
}

@using YourNamespace;

<ul>
    <li>@Html.ActionLink("Home", "Home", "Default", null, new {@class="@Html.IsSelected(actions: "Home", controllers: "Default")"})</li>
    <li>@Html.ActionLink("About", "About", "Default", null, new {@class="@Html.IsSelected(actions: "About", controllers: "Default")"})</li>
</ul>