Current fiddle changes will be discarded. Are you sure? | C# Online Compiler

Current fiddle changes will be discarded. Are you sure? by Erik Philips

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

namespace HelloWorldMvcApp
{
	public class SampleViewModel
	{
		public string Question { get; set; }

		public string Answer { get; set; }
		
		public List<int> Keys { get; set; }
	}
}

Model

​x
 
using System;
using System.ComponentModel.DataAnnotations;
using System.Collections;
using System.Collections.Generic;
​
namespace HelloWorldMvcApp
{
    public class SampleViewModel
    {
        public string Question { get; set; }
​
        public string Answer { get; set; }
        
        public List<int> Keys { get; set; }
    }
}

@model HelloWorldMvcApp.SampleViewModel
@{
	Layout = null;
}

<!DOCTYPE html>
<html lang="en">
	<body>
		<div>
			@using (Html.BeginForm())
			{
			<div>
				@Html.EditorFor(m => m.Question)<br /><br />
				@Html.EditorFor(m => m.Answer)<br /><br />

				@for(var i = 0; i < Model.Keys.Count; i++)
				{
					var value = Model.Keys.ElementAt(i);
				<span>@value</span>
					<text>@Html.Hidden("Keys", value)</text>
				}
				
				<input type="submit" vale="submit"/>

			</div>
			
			}
			
			@if ( ViewBag.IsPost)
			{
				for(var i = 0; i < Model.Keys.Count; i++)
				{
					<div>@Model.Keys.ElementAt(i)</div>
				}
			}
		</div>
	</body>
</html>

View

 
@model HelloWorldMvcApp.SampleViewModel
@{
    Layout = null;
}
​
<!DOCTYPE html>
<html lang="en">
    <body>
        <div>
            @using (Html.BeginForm())
            {
            <div>
                @Html.EditorFor(m => m.Question)<br /><br />
                @Html.EditorFor(m => m.Answer)<br /><br />
​
                @for(var i = 0; i < Model.Keys.Count; i++)
                {
                    var value = Model.Keys.ElementAt(i);
                <span>@value</span>
                    <text>@Html.Hidden("Keys", value)</text>
                }
                
                <input type="submit" vale="submit"/>
​
            </div>
            
            }
            
            @if ( ViewBag.IsPost)
            {
                for(var i = 0; i < Model.Keys.Count; i++)
                {
                    <div>@Model.Keys.ElementAt(i)</div>
                }
            }
        </div>
    </body>
</html>
​

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

namespace HelloWorldMvcApp
{
	public class HomeController : Controller
	{
		[HttpGet]
		public ActionResult Index()
		{
			ViewBag.IsPost = false;
			
			var model = new SampleViewModel();
			
			model.Question = "what is 2 + 2";
			model.Answer = "Four";
			model.Keys = new List<int>();
			model.Keys.Add(1);
			model.Keys.Add(2);
			
			return View(model);
		}


		[HttpPost]
		public ActionResult Index(SampleViewModel model)
		{				
			ViewBag.IsPost = true;
			
			
			return View(model);
		}

	}
}

Controller

 
using System;
using System.Web.Mvc;
using System.Collections;
using System.Collections.Generic;
​
namespace HelloWorldMvcApp
{
    public class HomeController : Controller
    {
        [HttpGet]
        public ActionResult Index()
        {
            ViewBag.IsPost = false;
            
            var model = new SampleViewModel();
            
            model.Question = "what is 2 + 2";
            model.Answer = "Four";
            model.Keys = new List<int>();
            model.Keys.Add(1);
            model.Keys.Add(2);
            
            return View(model);
        }
​
​
        [HttpPost]
        public ActionResult Index(SampleViewModel model)
        {               
            ViewBag.IsPost = true;
            
            
            return View(model);
        }
​
    }
}

View in Full Screen

View IL Code