How do I generically implement URL-rewriting in a MapRoute method?

Question

I am attempting to rewrite URL\'s from C#\'s Pascal-case to SEO-friendly format.
For example, I want something like /User/Home/MyJumbledPageName to lo

Answer 1

For reference, I have found how to make @LostInComputer 's code work for areas as well. The class used for an area must implement IRouteWithArea for context.Routes.Add to work in an area's RegisterArea method.

Here's a generic class that can be used for areas (it extends the above SEOFriendlyRoute class):

public class AreaSEOFriendlyRoute : SEOFriendlyRoute, IRouteWithArea
{
    private readonly string _areaName;

    // constructor:
    public AreaSEOFriendlyRoute(string areaName, string url, RouteValueDictionary defaults, IEnumerable valuesToSeo,
        RouteValueDictionary constraints = null, RouteValueDictionary dataTokens = null, IRouteHandler routeHandler = null)
        : base(url, defaults, valuesToSeo, constraints, dataTokens, routeHandler)
    {
        this._areaName = areaName;
    }

    // implemented from IRouteWithArea:
    public string Area
    {
        get
        {
            return this._areaName;
        }
    }
}

...and its' usage:

public override void RegisterArea(AreaRegistrationContext context)
{
    context.Routes.Add("Example", new AreaSEOFriendlyRoute(
        areaName: this.AreaName,
        url: "my-area/{action}/{id}",
        valuesToSeo: new string[] { "action", "controller" },
        defaults: new RouteValueDictionary(new { controller = "MyController", action = "MyDefaultPage", id = UrlParameter.Optional }))
    );
}

Note that I am passing an extra argument when calling context.Routes.Add, which is defined as areaName. The formal parameter of the same name in the constructor is used to return this value from the Area method, in which is implemented from IRouteWithArea.

---

So a link such as:

@Html.ActionLink("my link text", "MyJumbledPageName", "MyController",
new { area = "MyArea" }, null)

...would result in the url my-area/my-jumbled-page-name. Also note that the preceding "my-area" in the url is obtained by hard-coding this in the route's url argument.