Route Not Being Hit In ASP.NET MVC 4 Child Class -

why first route being skipped second? first route has base controller class of second route, widgets inherits events, events "registration" method keeps getting hit.

url

widgets/v1/registrationwidget?eventid=3762 

route

routes.maproutelowercase(                 "defaultwidget",                 "widgets/v{version}/{action}widget",                 new { controller = "widgets", action = "notfound", version = 1, slug="event" },                 new { version = @"\d+" }             );          routes.maproutelowercase(           "namedevent",           "{id}/{slug}/{action}",           new { controller = "event", action = "index", slug = "event" },           new { id = @"\d+" }         ); 

widget controller

public partial class widgetscontroller : eventcontroller     {     public virtual actionresult registrationwidget(int version, int? eventid, string slug, int? divisionteamid = null, int? divisionid = null)     {         return getregistration(eventid, divisionid, divisionteamid, new widgetregistrationviewmodel(version));     } 

event controller

public partial class eventcontroller : sitecontroller     {     public virtual actionresult registration(int? id, string slug, int? divisionteamid = null, int? divisionid = null)     {         return getregistration(id, divisionteamid, divisionteamid, new eventregistrationviewmodel());     } 

according url widgets/v1/registrationwidget?eventid=3762 action name calculated registration, not registrationwidget expect, mvc use first route forward base class method.