SO: Pass dropdownlist value to controller | C# Online Compiler

SO: Pass dropdownlist value to controller by _SeM_.

using System;
using System.ComponentModel.DataAnnotations;

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

Model

​x
 
using System;
using System.ComponentModel.DataAnnotations;
​
namespace HelloWorldMvcApp
{
    public class SampleViewModel
    {
        public string DropDownListValue { 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 Stranger</h1>
	
				@using (Html.BeginForm())
				{
					@Html.DropDownList("DropDownListValue")
					<input type="submit" value="Submit" />
				}
				
				@if(ViewBag.Result != null)
				{
				<div>@ViewBag.Result</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>
		
		
	</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 Stranger</h1>
    
                @using (Html.BeginForm())
                {
                    @Html.DropDownList("DropDownListValue")
                    <input type="submit" value="Submit" />
                }
                
                @if(ViewBag.Result != null)
                {
                <div>@ViewBag.Result</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>
        
        
    </body>
</html>
​

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

namespace HelloWorldMvcApp
{
	public class HomeController : Controller
	{
		public ActionResult Index()
		{
			ViewBag.DropDownListValue = new SelectList(new SampleViewModel[]
			{
				new SampleViewModel() { DropDownListValue = "test1" },
				new SampleViewModel() { DropDownListValue = "test2" },
				new SampleViewModel() { DropDownListValue = "test3" },
				new SampleViewModel() { DropDownListValue = "test4" },
			}, "DropDownListValue", "DropDownListValue");
			return View(new SampleViewModel());
		}
		
		[HttpPost]
		public ActionResult Index(SampleViewModel model)
		{
			ViewBag.DropDownListValue = new SelectList(new SampleViewModel[]
			{
				new SampleViewModel() { DropDownListValue = "test1" },
				new SampleViewModel() { DropDownListValue = "test2" },
				new SampleViewModel() { DropDownListValue = "test3" },
				new SampleViewModel() { DropDownListValue = "test4" },
			}, "DropDownListValue", "DropDownListValue", model.DropDownListValue);
			
			ViewBag.Result = model.DropDownListValue;

			return View(model);
		}
		
	}
}

Controller

 
using System;
using System.Web.Mvc;
using System.Collections.Generic;
​
namespace HelloWorldMvcApp
{
    public class HomeController : Controller
    {
        public ActionResult Index()
        {
            ViewBag.DropDownListValue = new SelectList(new SampleViewModel[]
            {
                new SampleViewModel() { DropDownListValue = "test1" },
                new SampleViewModel() { DropDownListValue = "test2" },
                new SampleViewModel() { DropDownListValue = "test3" },
                new SampleViewModel() { DropDownListValue = "test4" },
            }, "DropDownListValue", "DropDownListValue");
            return View(new SampleViewModel());
        }
        
        [HttpPost]
        public ActionResult Index(SampleViewModel model)
        {
            ViewBag.DropDownListValue = new SelectList(new SampleViewModel[]
            {
                new SampleViewModel() { DropDownListValue = "test1" },
                new SampleViewModel() { DropDownListValue = "test2" },
                new SampleViewModel() { DropDownListValue = "test3" },
                new SampleViewModel() { DropDownListValue = "test4" },
            }, "DropDownListValue", "DropDownListValue", model.DropDownListValue);
            
            ViewBag.Result = model.DropDownListValue;
​
            return View(model);
        }
        
    }
}

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