Need help canonizing an HTTP GET form in asp.net mvc

Question

I have a form on mpc asp.net that serves 3 purposes: swap search, sort and search. These elements must be displayed in the same form, since the return of the correct search results depends on the variables from all three aspects. What I'm trying to do is move the parameters from the query string and put them in the canonical URL.

I'm almost there, here are my 3 routing configurations so far (using T4MVC for area names, controller names and actions):

context.MapRoute(null,
    "my-area/my-widgets/search/{size}-results-max/page-{page}/order-by-{sort}",
    new
    {
        area = MVC.MyArea.Name,
        controller = MVC.MyArea.MyWidgets.Name,
        action = MVC.MyArea.MyWidgets.ActionNames.Search,
        page = UrlParameter.Optional,
        size = UrlParameter.Optional,
        sort = UrlParameter.Optional,
    }
);

context.MapRoute(null,
    "my-area/my-widgets/canonicalize-search",
    new
    {
        area = MVC.MyArea.Name,
        controller = MVC.MyArea.MyWidgets.Name,
        action = MVC.MyArea.MyWidgets.ActionNames.CanonicalizeSearch,
    }
);

context.MapRoute(null,
    "my-area/my-widgets",
    new
    {
        area = MVC.MyArea.Name,
        controller = MVC.MyArea.MyWidgets.Name,
        action = MVC.MyArea.MyWidgets.ActionNames.CanonicalizeSearch,
    }
);

The form in the view passes the CanonicalizeSearch path using this syntax:

@using (Html.BeginForm(MVC.MyArea.MyWidgets.CanonicalizeSearch(), 
    FormMethod.Get))

There are 2 action methods in MyWidgetsController:

[ActionName("canonicalize-search")]
public virtual RedirectToRouteResult CanonicalizeSearch(string keyword, 
    int page = 1, int size = 10, string sort = "Title-Ascending")
{
    var result = RedirectToRoutePermanent(new
    {
        area = MVC.MyArea.Name,
        controller = MVC.MyArea.MyWidgets.Name,
        action = MVC.MyArea.MyWidgets.ActionNames.Search,
        page = page,
        size = size,
        sort = sort,
        keyword = keyword,
    });
    return result;
}

[ActionName("search")]
public virtual ViewResult Search(string keyword, 
    int page = 1, int size = 10, string sort = "Title-Ascending")
{
    // code to perform query
    return View(model);
}

, . , CanonicalizeSearch , , . , , .

, : , 4- , 3 .. , , - querystring. ( , CanonicalizeSearch Search, ).

?

Answer 1

, , .

, - " " . , CanonicalizeSearch :

/my-area/my-widgets/search/10-results-per-page/page-1/
    order-by-Title-Ascending/my%20search%20terms

%20 . , URL :

/my-area/my-widgets/search/10-results-per-page/page-1/
    order-by-Title-Ascending/my-search-terms

( ):

[ActionName("canonicalize-search")]
public virtual RedirectToRouteResult CanonicalizeSearch(string keyword, 
    int page = 1, int size = 10, string sort = "Title-Ascending")
{
    var result = RedirectToRoute(new
    {
        area = MVC.MyArea.Name,
        controller = MVC.MyArea.MyWidgets.Name,
        action = MVC.MyArea.MyWidgets.ActionNames.Search,
        page = page,
        size = size,
        sort = sort,
        keyword = (string.IsNullOrWhiteSpace(keyword)) 
            ? "no-keywords" : keyword.Replace(' ', '-'),
    });
    TempData["keyword"] = keyword;
    return result;
}

[ActionName("search")]
public virtual ViewResult Search(string keyword, 
    int page = 1, int size = 10, string sort = "Title-Ascending")
{
    keyword = TempData["keyword"] as string ?? keyword;
    // code to perform query
    return View(model);
}

, , %20. , , URL

/my-area/my-widgets/search/10-results-per-page/page-1/
    order-by-Title-Ascending/no-keywords

... .

Answer 2

UrlParameter.Optional keyword ? , .