C# ASP MVC Route Model ID bug

问题

Can you explain me how to solve bug in dotnet where view model is override by routing binding? Because view is showing routing ID and actual ID is discarded. I try to debug but it looks good but after rendering of value it show still URL value and not MODEL value.

Routing

public static void RegisterRoutes(RouteCollection routes)
{
 routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

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

Model

namespace Test.Models
{
    public class HomeIndex
    {
        public int Id { get; set; }

    }
}

Controller

namespace Test.Controllers
{
    public class HomeController : Controller
    {
        public ActionResult Index(int? id)
        {
            var model = new Models.HomeIndex()
            {
                Id = 65
            };
            
            return View(model);
        }       
    }
}

View

@model Test.Models.HomeIndex
@{
    ViewBag.Title = "Home Page";
}

@Html.HiddenFor(x => x.Id)
@Html.DisplayFor(x => x.Id)
@Html.EditorFor(x => x.Id)

Output http://localhostHome/Index/1

<input id="Id" name="Id" type="hidden" value="1" />
65
<input id="Id" name="Id" type="number" value="1" />

Expected

<input id="Id" name="Id" type="hidden" value="65" />
65
<input id="Id" name="Id" type="number" value="65" />

回答1:

So far as i found as an answer for this issue is remove key from modelstate.

[HttpGet] // http://localhost/Home/Detail/1
public ActionResult Detail(int? Id)
{
    ModelState.Remove(nameof(Id)); // this will remove binding
    var model = new Models.HomeIndex()
    {
        Id = 65
    };
        
    return View(model);
}



[HttpPost] // http://localhost/Home/Detail/
public ActionResult Detail(Models.HomeIndex model)
{
   if (ModelState.IsValid)
    {
        //...
        return RedirectToAction("Index");
    }
    return View(model);
}

ASP.NET MVC - Alternative for [Bind(Exclude = "Id")]

来源：https://stackoverflow.com/questions/65157035/c-sharp-asp-mvc-route-model-id-bug