ASP MVC路由：相同操作/视图的3条路由

Question

I have this controler with only 1 action and working with id(int):

public class PropertiesController: Controller
{
    public ActionResult Index (int idEstate = 0, int idCity = 0, int [] idNeighborhoods = null)
    {
        string IdEstate ;
        string IdCity ;
        int [] IdNeighborhoods ;

        #ReadOrSetCookie

        #SetViewBags

        #ReturnNeighborhoods

        #ReturnProperties

        return View();
    }
}

In the View I have a form, the user can select 1 state and 1 city and a set of neighborhoods. And when submitted returns to the Action Index that instead of reading this data a cookie will receive from the form, then search and return the properties. Working fine. I no have problens here.

My problem is on return displays for user the following url everytime:

MySite/properties/index

And I need to return depending on what the user selects in the form If he just reported the state:

MySite/properties/{StateInformed}

If he also selected a city:

MySite/properties/{StateInformed}/{CityInformed}

eg www.mysite.com/properties/Florida/Miami

My routConfig is the default:

routes.MapRoute(
            name: "Default",
            url: "{controller}/{action}/{id}",
            defaults: new { controller = "Properties", action = "Index", id = UrlParameter.Optional }
        );

And my simplified form is (I'm not reporting verb or anything different)

@using (Html.BeginForm("Index", "Home"))
{
   @Html.DropDownList("idEstado", new SelectList(ViewBag.ListaEstados, "idEstado", "txtNomeEstado", ViewBag.idEstadoCookie))
   @Html.DropDownList("idCidade", new SelectList(ViewBag.ListaCidades, "idCidade", "txtNomeCidade", ViewBag.idCidadeCookie))
   <input type="submit" value="BUSCAR" />
}

Is possible do this with only 1 action and working with id (int)? Could someone help me do this?

Update here -----------------------------------------

Using the suggested here I try this...

I add this decoration in the controller:

    [Route("")]
    [Route("imoveis/{idEstado?}")]
    [Route("imoveis/{idEstado?}/{idCidade?}")]
    [Route("imoveis/{idEstado?}/{idCidade?}/{idRegiao?}")]
    public ActionResult Index (int idEstate = 0, int idCity = 0, int [] idNeighborhoods = null)

I change the form in view to using get and have a Id:

@using (Html.BeginForm("Index", "imoveis", FormMethod.Get, new { id = "buscaimovel" }))

I add for each selct list in form the html atribut form. But in the select to State I put form = "buscaimovel" and for others I put a diferente form like:

@Html.DropDownList("idEstado", new SelectList(ViewBag.ListaEstados, "idEstado", "txtNomeEstado", ViewBag.idEstadoCookie), new { @form = "buscaimovel" })
@Html.DropDownList("idCidade", new SelectList(ViewBag.ListaCidades, "idCidade", "txtNomeCidade", ViewBag.idCidadeCookie), new { @form = "nulo" })

And finally I use a jquery to change the form attribute when an item is selected

$(document).ready(function () {
        $("#idRegiao")
            .change(function () {
                if ($("#idRegiao").val() != null) $("#idRegiao").attr("form", "buscaimovel");
            });
    });

Nice! Now I have my diferent url return's:

//localhost:57094/?idEstado=11

//localhost:57094/?idEstado=11&idCidade=41

//localhost:57094/?idEstado=11&idCidade=41&idRegiao=258

Or this:

//localhost:57094/imoveis/11

//localhost:57094/imoveis/11/41

//localhost:57094/imoveis/11/41/258

But see Is returned the id. Can I return the name of Estate, City and Region, by keeping my action with ids [int]?

Answer 1

you can use Attribute Routing

in route config:

routes.MapMvcAttributeRoutes();

Noe you can decorate you action with a route attribute Controller:

        [Route("~/Prop/{StateInformed?}")]
        public ActionResult Test(string StateInformed = null)
        {
            // DO STAFF

            return View();
        }

        [HttpPost]
        [Route("~/Prop/{StateInformed?}")]
        public ActionResult Test(int? idState)
        {
            // DO STAFF

            String state = string.Empty;

            if (idState.HasValue)
            {
            state = "MyState";
            }

            // if state is null the route will be "/Prop" else "/Prop/MyState"
            return RedirectToAction("Test", new { StateInformed =state});
        }

View:

@using (Html.BeginForm())
{
   @Html.TextBox("idState")
   <input type="submit" value="BUSCAR" />
}

Examples here

Just play with it

Answer 2

您可以将非强制性的属性设置为可选，或者如果不想让这些属性可选，则可以为每个属性组合创建单独的方法。