如何在Asp.NET Core中呈现不同的布局

Question

我想在我的asp.net核心应用程序的某些页面上呈现空布局。为此，我在中使用了此代码_ViewStart.cshtml。@{    var controller = HttpContext.Current.Request.RequestContext.RouteData.Values["Controller"].ToString();    string cLayout = "";    if (controller == "Empty")    {        cLayout = "~/Views/Shared/_Empty_Layout.cshtml";    }    else    {        cLayout = "~/Views/Shared/_Layout.cshtml";    }    Layout = cLayout;}这段代码适用于，Asp.NET MVC App但给出的错误.NET Core App。错误是The name 'HttpContext' does not exist in the current context