Modelstate Data

Question

How to get ModelState Values in the ActionMethod of the Controller?

Here's my Index View Code -

 

Here's my Index View Code -
@using (Html.BeginForm("Index", "Home"))
{
@Html.LabelFor(p => p.name, "Name: ")
@Html.TextBoxFor(p => p.name)

@Html.LabelFor(p => p.height, "Height: ")
@Html.TextBoxFor(p => p.height)

@Html.LabelFor(p => p.number, "Id: ")
@Html.TextBoxFor(p => p.number)

@Html.LabelFor(p => p.typeId, "Type : ")
@Html.DropDownList("typeId", TempData["typeId"] as SelectList)

@Html.LabelFor(p => p.isLegendary, "Is Legendary")
@Html.CheckBoxFor(p => p.isLegendary)

"submit" name="btnSumit" value="Submit" />
}

 My Code in Controller -

 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using WebApplication1.Models;

namespace WebApplication1.Controllers
{

    public class HomeController : Controller
    {
        public ActionResult Index()
        {
            List<PokemonType> pokeTypes = new List<PokemonType>() {
                new PokemonType(){typeId = 1,pokeType = "Fire"},
                new PokemonType(){typeId = 2,pokeType = "Water"},
                new PokemonType(){typeId = 3,pokeType = "Thunder"},
                new PokemonType(){typeId = 4,pokeType = "Dark" }
            };
            Pokemon p = new Pokemon();
            SelectList sl = new SelectList(pokeTypes, dataValueField: "typeId", dataTextField: "pokeType", selectedValue: 4);
            TempData["typeId"] = sl;
            TempData.Keep();
            //TempData.Keep();
            return View(p);
        }

        [HttpPost]
        public string Index(Pokemon p)
        {
            string isLegendary = "";
            if (p.isLegendary)
            {
                isLegendary = "Yes";
            }
            else
            {
                isLegendary = "No";
            }

            //ModelState.Clear();
            var type = ViewData.ModelState["typeId"].Value;
            var name = ViewData.ModelState["name"].Value;
            string s = $"Name: {name}  <br>Height: {p.height} cm <br>Id: #{p.number}  <br>Type: {type}  <br>Is Legendary: {isLegendary}";
            return s;
        }

My Model Code -

 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace WebApplication1.Models
{
    public class PokemonType
    {
        public int typeId { get; set; }
        public string pokeType { get; set; }

        public override string ToString()
        {
            return pokeType;
        }
    }
    public class Pokemon
    {
        public string name { get; set; }
        public float height { get; set; }
        public int number { get; set; }
        //public PokemonType type { get; set; }
        public int typeId { get; set; }
        public bool isLegendary { get; set; }
    }

With the Above code i get Output as -

 

Name:System.Web.Mvc.ValueProviderResult
Height: 99.7 cm
Id: #197
Type: System.Web.Mvc.ValueProviderResult
Is Legendary: Yes

 

Second method which i have tried is using Extension Method -

 

public static string DisplayType(this SelectList selectList)
{
    return selectList.DataTextField;
}

and changing string in [HttpPost] Index method -

 

string s = $"Name: {p.name}  <br>Height: {p.height} cm <br>Id: #{p.number}  <br>Type: {HelperClassExtension.DisplayType(TempData["typeId"] as SelectList)}  <br>Is Legendary: {isLegendary}";
           return s;

With These Changes, My output is -

 

Name:Umbreon
Height: 99.7 cm
Id: #197
Type: pokeType
Is Legendary: No 

 

So, I get pokeType instead of value Dark. (i've selected dark from the list.)

These are the things I have tried to retrieve the value of type(fire,water,thunder and dark). so, is there any way through which I can retrieve it?