Question

Is there an easy way to get the MvcRouteHandler to convert all hyphens in the action and controller sections of an incoming URL to underscores as hyphens are not supported in method or class names.

This would be so that I could support such structures as sample.com/test-page/edit-details mapping to Action edit_details and Controller test_pagecontroller while continuing to use MapRoute method.

I understand I can specify an action name attribute and support hyphens in controller names which out manually adding routes to achieve this however I am looking for an automated way so save errors when adding new controllers and actions.

Answer 1

I have worked out a solution. The requestContext inside the MvcRouteHandler contains the values for the controller and action on which you can do a simple replace on.

Public Class HyphenatedRouteHandler
    Inherits MvcRouteHandler

    Protected Overrides Function GetHttpHandler(ByVal requestContext As System.Web.Routing.RequestContext) As System.Web.IHttpHandler
        requestContext.RouteData.Values("controller") = requestContext.RouteData.Values("controller").ToString.Replace("-", "_")
        requestContext.RouteData.Values("action") = requestContext.RouteData.Values("action").ToString.Replace("-", "_")
        Return MyBase.GetHttpHandler(requestContext)
    End Function

End Class

Then all you need to replace the routes.MapRoute with an equivalent routes.Add specifying the the new route handler. This is required as the MapRoute does not allow you to specify a custom route handler.

routes.Add(New Route("{controller}/{action}/{id}", New RouteValueDictionary(New With {.controller = "Home", .action = "Index", .id = ""}), New HyphenatedRouteHandler()))