xamarinmac 
namespace Microsoft.AspNetCore.Mvc
{
    public static class UrlHelperExtensions
    {
        public static string RouteUrl(this IUrlHelper helper, string routeName, object values, string protocol, string host);
    }
}
.NET
5.06.07.08.09.010.011.0
.NET Core
2.02.12.23.03.1
.NET Framework
4.6.14.6.24.74.7.14.7.24.84.8.1
.NET Standard
2.02.1
Information specific to xamarinmac
Assembly

Microsoft.AspNetCore.Mvc.Core , Version=2.3.13.0, PublicKeyToken=adb9793829ddae60

Referencing

Your project needs a package reference to Microsoft.AspNetCore.Mvc.Core.

Package Microsoft.AspNetCore.Mvc.Core (2.3.13) netstandard2.0
Platform Restrictions

This framework does not have platform annotations.

  • Built-in API
  • Package-provided API