C# Online Compiler | .NET Fiddle

<no name> by Anonymous

using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;

namespace HelloWorldMvcApp
{
	public class Model
	{
		public int ? SelectedValue
		{
			get;
			set;
		}

		public List<Value> Values
		{
			get;
			set;
		}

		public IEnumerable<SelectListItem> Fields
		{
			get
			{
				return new[]
				{
				new SelectListItem
				{
				Text = "1", Value = "1"
				}

				, new SelectListItem
				{
				Text = "2", Value = "2"
				}

				, new SelectListItem
				{
				Text = "3", Value = "3"
				}

				, }

				;
			}
		}

		public Model()
		{
			Values = new List<Value>();
		}
	}

	public class Value
	{
		public int ? SelectedValue
		{
			get;
			set;
		}
	}
}

Model

​x
 
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
​
namespace HelloWorldMvcApp
{
    public class Model
    {
        public int ? SelectedValue
        {
            get;
            set;
        }
​
        public List<Value> Values
        {
            get;
            set;
        }
​
        public IEnumerable<SelectListItem> Fields
        {
            get
            {
                return new[]
                {
                new SelectListItem
                {
                Text = "1", Value = "1"
                }
​
                , new SelectListItem
                {
                Text = "2", Value = "2"
                }
​
                , new SelectListItem
                {
                Text = "3", Value = "3"
                }
​
                , }
​
                ;
            }
        }
​
        public Model()
        {
            Values = new List<Value>();
        }
    }
​
    public class Value
    {
        public int ? SelectedValue
        {
            get;
            set;
        }
    }
}

@model HelloWorldMvcApp.Model

<p>@Model.SelectedValue</p>

@Html.DropDownListFor(model => model.SelectedValue, Model.Fields)

@{ var i = 0; } 
@foreach(var v in Model.Values) 
{
	<p>@v.SelectedValue</p>
	
	@Html.DropDownListFor(model => model.Values[i].SelectedValue, Model.Fields)
		
	i++;
}

View

 
@model HelloWorldMvcApp.Model
​
<p>@Model.SelectedValue</p>
​
@Html.DropDownListFor(model => model.SelectedValue, Model.Fields)
​
@{ var i = 0; } 
@foreach(var v in Model.Values) 
{
    <p>@v.SelectedValue</p>
    
    @Html.DropDownListFor(model => model.Values[i].SelectedValue, Model.Fields)
        
    i++;
}

using System;
using System.Web.Mvc;
using System.Collections.Generic;

namespace HelloWorldMvcApp
{
	public class HomeController : Controller
	{
		[HttpGet]
		public ActionResult Index()
		{
			var model = new Model();
			model.SelectedValue = 2;
			model.Values.Add(new Value
			{
			SelectedValue = 3
			}

			);
			return View(model);
		}
	}
}

Controller

 
using System;
using System.Web.Mvc;
using System.Collections.Generic;
​
namespace HelloWorldMvcApp
{
    public class HomeController : Controller
    {
        [HttpGet]
        public ActionResult Index()
        {
            var model = new Model();
            model.SelectedValue = 2;
            model.Values.Add(new Value
            {
            SelectedValue = 3
            }
​
            );
            return View(model);
        }
    }
}

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Last Run:	10:30:21 am
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