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using System.ComponentModel.DataAnnotations;

namespace HelloWorldMvcApp
{
	public class SampleViewModel
	{
		[DisplayFormat(ApplyFormatInEditMode = true, DataFormatString = "{0:c}")]
        public float? Costs { get; set; }

	}
}

Model

​x
 
using System.ComponentModel.DataAnnotations;
​
namespace HelloWorldMvcApp
{
    public class SampleViewModel
    {
        [DisplayFormat(ApplyFormatInEditMode = true, DataFormatString = "{0:c}")]
        public float? Costs { get; set; }
​
    }
}

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

<!DOCTYPE html>
<!-- template from http://getbootstrap.com/getting-started -->

<html lang="en">
	<head>
		<meta charset="utf-8">
		<meta http-equiv="X-UA-Compatible" content="IE=edge">
		<meta name="viewport" content="width=device-width, initial-scale=1">
		<title>Bootstrap 101 Template</title>

		<!-- CSS Includes -->
		<link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css">
		
		<style type="text/css">

			.field-validation-error {
				color: #ff0000;
			}

		</style>
	</head>
	
	<body>
		<div class="container">
			<div class="col-md-6 col-md-offset-3">
				<h1>Hello</h1>
	
				@using (Html.BeginForm("Dropdown","Home", FormMethod.Post))
				{
					<select id="EventId" name="eventId">

                     </select>
				    
				     <input name="text" type="submit" value="Submit" />
				
					
				}
				
				<button style="margin-top:20px;" id="yourid">Fill Dropdown!</button>
	
				<br/><br/>
				<div class="alert alert-warning fade">
					<img src="http://entechprod.blob.core.windows.net/dotnetfiddle/morpheus.jpg" style="max-width:100%;"/><br/><br/>
					<strong><span class="alert-content"></span></strong>
				</div>
			</div>
		</div>

		<!-- JS includes -->
		<script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
		<script src="//netdna.bootstrapcdn.com/bootstrap/3.1.1/js/bootstrap.min.js"></script>
	
		<script src="//ajax.aspnetcdn.com/ajax/jquery.validate/1.11.1/jquery.validate.min.js"></script>
		<script src="//ajax.aspnetcdn.com/ajax/mvc/4.0/jquery.validate.unobtrusive.min.js"></script>
		<script>
			// jquery
			$("#yourid").on("click", function(){
				showValue();
			})
			
			function showValue()
			{
			    
				$.getJSON('@Url.Action("GetDropdownList", "Home")', function (result) {
					
					$("#EventId").html(""); // makes select null before filling process
			        var data = result.data;
			        for (var i = 0; i < data.length; i++) {
						$("#EventId").append("<option>"+ data[i] +"</option>")
			 			console.log(data[i])
					}
			        
				})    
			}
		</script>
	</body>
</html>

View

 
@model HelloWorldMvcApp.SampleViewModel
@{
    Layout = null;
}
​
<!DOCTYPE html>
<!-- template from http://getbootstrap.com/getting-started -->
​
<html lang="en">
    <head>
        <meta charset="utf-8">
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <title>Bootstrap 101 Template</title>
​
        <!-- CSS Includes -->
        <link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css">
        
        <style type="text/css">
​
            .field-validation-error {
                color: #ff0000;
            }
​
        </style>
    </head>
    
    <body>
        <div class="container">
            <div class="col-md-6 col-md-offset-3">
                <h1>Hello</h1>
    
                @using (Html.BeginForm("Dropdown","Home", FormMethod.Post))
                {
                    <select id="EventId" name="eventId">
​
                     </select>
                    
                     <input name="text" type="submit" value="Submit" />
                
                    
                }
                
                <button style="margin-top:20px;" id="yourid">Fill Dropdown!</button>
    
                <br/><br/>
                <div class="alert alert-warning fade">
                    <img src="http://entechprod.blob.core.windows.net/dotnetfiddle/morpheus.jpg" style="max-width:100%;"/><br/><br/>
                    <strong><span class="alert-content"></span></strong>
                </div>
            </div>
        </div>
​
        <!-- JS includes -->
        <script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
        <script src="//netdna.bootstrapcdn.com/bootstrap/3.1.1/js/bootstrap.min.js"></script>
    
        <script src="//ajax.aspnetcdn.com/ajax/jquery.validate/1.11.1/jquery.validate.min.js"></script>
        <script src="//ajax.aspnetcdn.com/ajax/mvc/4.0/jquery.validate.unobtrusive.min.js"></script>
        <script>
            // jquery
            $("#yourid").on("click", function(){
                showValue();
            })
            
            function showValue()
            {
                
                $.getJSON('@Url.Action("GetDropdownList", "Home")', function (result) {
                    
                    $("#EventId").html(""); // makes select null before filling process
                    var data = result.data;
                    for (var i = 0; i < data.length; i++) {
                        $("#EventId").append("<option>"+ data[i] +"</option>")
                        console.log(data[i])
                    }
                    
                })    
            }
        </script>
    </body>
</html>
​

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

namespace HelloWorldMvcApp
{
	public class HomeController : Controller
	{
		[HttpGet]
		public ActionResult Index()
		{
			
			return View();
		}
		
		[HttpPost]
		public ActionResult Dropdown()
		{
			// add your code after post method is done
			var selectedOption = Request["eventId"];
			return Content(selectedOption);
		}
		
		[HttpGet]
		public JsonResult GetDropdownList()
		{
			List<string> yourdata = new List<string>();
			yourdata.Add("option1");
			yourdata.Add("option2");
			yourdata.Add("option3");
			
			return Json(new { data = yourdata}, JsonRequestBehavior.AllowGet);
		}
	}
}

Controller

 
using System;
using System.Web.Mvc;
using System.Collections.Generic;
​
namespace HelloWorldMvcApp
{
    public class HomeController : Controller
    {
        [HttpGet]
        public ActionResult Index()
        {
            
            return View();
        }
        
        [HttpPost]
        public ActionResult Dropdown()
        {
            // add your code after post method is done
            var selectedOption = Request["eventId"];
            return Content(selectedOption);
        }
        
        [HttpGet]
        public JsonResult GetDropdownList()
        {
            List<string> yourdata = new List<string>();
            yourdata.Add("option1");
            yourdata.Add("option2");
            yourdata.Add("option3");
            
            return Json(new { data = yourdata}, JsonRequestBehavior.AllowGet);
        }
    }
}

View in Full Screen

1 - Orders

OrderID	State	Items
1	New
2	New

2 - OrderItems

OrderItemID	OrderID	ProductName	Quantity
1	1	Dapper Plus	9
2	1	C# Eval Expression	14
3	2	Entity Framework Extensions	19

Cached Result
Last Run:	3:55:12 pm
Compile:	0.152s
Execute:	1.03s
Memory:	53.95Mb
CPU:	1.182s

1 - Orders

2 - OrderItems

View IL Code