DropDownListForWithJS

CSharp · Mvc

Model

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

namespace HelloWorldMvcApp
{
	public class SampleViewModel
	{
		public string Level { get; set; }
		
		public List<SelectListItem> Levels { get; set; }
	}
}

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>DropDownListFor with JS</h1>
	
				@using (Html.BeginForm())
				{
					<div id="test" class="form-group">
					</div>
				}
	
				<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 type="text/javascript">
		
			function openAlert(txt) {
				$('.alert-content').text(txt);
				$('.alert').addClass('in');
			}
		
			function closeAlert() {
				$('.alert').removeClass('in');
			}
		
			$(function(){
				var levelDropdown = '@Ajax.JavaScriptStringEncode(Html.DropDownListFor(m => m.Level, Model.Levels, null, null).ToHtmlString())';
			    console.log(levelDropdown);
				var level = "<div class='col-sm-3 search-spacing'><label for='Level'>Level</label>" + 
			        levelDropdown.replace(/(\r\n\t|\n|\r\t)/gm,"") +"</div>";
				$('#test').append(level);
			
			});

		</script>
	</body>
</html>

Controller

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

namespace HelloWorldMvcApp
{
	public class HomeController : Controller
	{
		[HttpGet]
		public ActionResult Index()
		{
			var model = new SampleViewModel();
			
			model.Levels = new List<SelectListItem>() {
				new SelectListItem() { Text = "Option 1", Value = "1" },
				new SelectListItem() { Text = "Option 2", Value = "2" },
				new SelectListItem() { Text = "Option 3", Value = "3" },
				new SelectListItem() { Text = "Option 4", Value = "4" }
			};
		
			return View(model);
		}


	}
}