.NET API Catalog

RouteParameter
- Optional
- ToString()

net40
    namespace System.Web.Http
{
    public sealed class RouteParameter
    {
        [SuppressMessage("Microsoft.Security", "CA2104:DoNotDeclareReadOnlyMutableReferenceTypes", Justification = "This type is immutable.")]
        public static readonly RouteParameter Optional;
    }
}

Information specific to `net40`
NetFx Compat Lab	0.5 % Reference this API
nuget.org	0.1 % Reference this API 0.1 % Read field
Upgrade Planner	0.8 % Reference this API
.NET Framework	4.04.54.5.14.5.24.64.6.14.6.24.74.7.14.7.24.84.8.1
Assembly	System.Web.Http.Common , Version=4.0.0.0, PublicKeyToken=31bf3856ad364e35
Referencing	Your project needs a package reference to `System.Web.Http.Common`.
Package	System.Web.Http.Common (4.0.20126.16343) net40
Platform Restrictions	This framework does not have platform annotations.

Built-in API
Package-provided API