Maps the specified route template and sets default route values, constraints, and end-point message handler.
Namespace:  System.Web.Http
Assembly:  System.Web.Http (in System.Web.Http.dll)
Syntax
'Declaration
<ExtensionAttribute> _
Public Shared Function MapHttpRoute ( _
    routes As HttpRouteCollection, _
    name As String, _
    routeTemplate As String, _
    defaults As Object, _
    constraints As Object, _
    handler As HttpMessageHandler _
) As IHttpRoute
'Usage
Dim routes As HttpRouteCollection 
Dim name As String 
Dim routeTemplate As String 
Dim defaults As Object 
Dim constraints As Object 
Dim handler As HttpMessageHandler 
Dim returnValue As IHttpRoute 
returnValue = routes.MapHttpRoute(name, _
    routeTemplate, defaults, constraints, _
    handler)
public static IHttpRoute MapHttpRoute(
    this HttpRouteCollection routes,
    string name,
    string routeTemplate,
    Object defaults,
    Object constraints,
    HttpMessageHandler handler
)
[ExtensionAttribute]
public:
static IHttpRoute^ MapHttpRoute(
    HttpRouteCollection^ routes, 
    String^ name, 
    String^ routeTemplate, 
    Object^ defaults, 
    Object^ constraints, 
    HttpMessageHandler^ handler
)
static member MapHttpRoute : 
        routes:HttpRouteCollection * 
        name:string * 
        routeTemplate:string * 
        defaults:Object * 
        constraints:Object * 
        handler:HttpMessageHandler -> IHttpRoute
public static function MapHttpRoute(
    routes : HttpRouteCollection, 
    name : String, 
    routeTemplate : String, 
    defaults : Object, 
    constraints : Object, 
    handler : HttpMessageHandler
) : IHttpRoute
Parameters
- routes 
 Type: System.Web.Http.HttpRouteCollection- A collection of routes for the application. 
- name 
 Type: System.String- The name of the route to map. 
- routeTemplate 
 Type: System.String- The route template for the route. 
- defaults 
 Type: System.Object- An object that contains default route values. 
- constraints 
 Type: System.Object- A set of expressions that constrain the values for routeTemplate. 
- handler 
 Type: HttpMessageHandler- The handler to which the request will be dispatched. 
Return Value
Type: System.Web.Http.Routing.IHttpRoute
A reference to the mapped route.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type HttpRouteCollection. When you use instance method syntax to call this method, omit the first parameter. For more information, see https://msdn.microsoft.com/en-us/library/bb384936(v=vs.108) or https://msdn.microsoft.com/en-us/library/bb383977(v=vs.108).