Add a trailing slash at the end of each url?

Question

I have a little problem here. I need to add a trailing slash at the end of each url in the site I\'m working on. I defined all the links inside the site to have a trailing s

Answer 1

You can create a new Route which overrides the GetVirtualPath method. In this method you add a trailing slash to the VirtualPath. Like this:

public override VirtualPathData GetVirtualPath(RequestContext requestContext, RouteValueDictionary values)
{
     VirtualPathData path = base.GetVirtualPath(requestContext, values);

     if (path != null)
         path.VirtualPath = path.VirtualPath + "/";
     return path;
}

For brevity I posted the whole example on CodePaste.net

Now all you have to do is register the routes with routes.MapRouteTrailingSlash() instead of routes.MapRoute().

routes.MapRouteTrailingSlash("register",
                             "register",
                             new {controller = "Users", action = "Register"}
);

The route will then add a slash to the path when the GetVirtualPath() is called. Which RedirectToAction() will do.

Update: Because the CodePaste link is down, here is the full code:

public class TrailingSlashRoute : Route {
    public TrailingSlashRoute(string url, IRouteHandler routeHandler)
        : base(url, routeHandler) {}

    public TrailingSlashRoute(string url, RouteValueDictionary defaults, IRouteHandler routeHandler)
        : base(url, defaults, routeHandler) {}

    public TrailingSlashRoute(string url, RouteValueDictionary defaults, RouteValueDictionary constraints,
                          IRouteHandler routeHandler)
        : base(url, defaults, constraints, routeHandler) {}

    public TrailingSlashRoute(string url, RouteValueDictionary defaults, RouteValueDictionary constraints,
                          RouteValueDictionary dataTokens, IRouteHandler routeHandler)
        : base(url, defaults, constraints, dataTokens, routeHandler) {}

    public override VirtualPathData GetVirtualPath(RequestContext requestContext, RouteValueDictionary values) {
        VirtualPathData path = base.GetVirtualPath(requestContext, values);

        if (path != null)
            path.VirtualPath = path.VirtualPath + "/";
        return path;
    }
}

public static class RouteCollectionExtensions {
    public static void MapRouteTrailingSlash(this RouteCollection routes, string name, string url, object defaults) {
        routes.MapRouteTrailingSlash(name, url, defaults, null);
    }

    public static void MapRouteTrailingSlash(this RouteCollection routes, string name, string url, object defaults,
                                         object constraints) {
        if (routes == null)
            throw new ArgumentNullException("routes");

        if (url == null)
            throw new ArgumentNullException("url");

        var route = new TrailingSlashRoute(url, new MvcRouteHandler())
                    {
                        Defaults = new RouteValueDictionary(defaults),
                        Constraints = new RouteValueDictionary(constraints)
                    };

        if (String.IsNullOrEmpty(name))
            routes.Add(route);
        else
            routes.Add(name, route);
    }
}