1 namespace System.Web.Mvc {
3 using System.Diagnostics.CodeAnalysis;
5 public sealed class UrlParameter {
7 [SuppressMessage("Microsoft.Security", "CA2104:DoNotDeclareReadOnlyMutableReferenceTypes", Justification = "This type is immutable.")]
8 public static readonly UrlParameter Optional = new UrlParameter();
10 // singleton constructor
11 private UrlParameter() { }
13 public override string ToString() {