foreach vs for | C# Online Compiler

foreach vs for by JamieD

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

namespace HelloWorldMvcApp
{
	
	public class State
	{
		public int Id {get;set;}
		public string Name {get;set;}
		public string Station {get;set;}
		public bool Selected {get;set;}
	}
}

Model

​x
 
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web;
using System.Web.Mvc;
​
namespace HelloWorldMvcApp
{
    
    public class State
    {
        public int Id {get;set;}
        public string Name {get;set;}
        public string Station {get;set;}
        public bool Selected {get;set;}
    }
}

@model List<HelloWorldMvcApp.State>
@{
	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>@Html.Raw(ViewBag.Message)</h1>
	
				@using (Html.BeginForm())
				{
					<table class="table">
						<thead>
						<tr>
							<th></th>
							<th>
								@Html.DisplayNameFor(model => Model[0].Name)
							</th>
							<th>
								@Html.DisplayNameFor(model => Model[0].Station)
							</th>
							<th></th>
						</tr>
						</thead>
						<tbody>
						@for (var i = 0; i < Model.Count(); i++)
						{
							<tr>
								<td>
									@Html.CheckBoxFor(modelItem => Model[i].Selected) @* new bool field *@
								</td>
								<td>
									@Html.DisplayFor(modelItem => Model[i].Name)
									@Html.HiddenFor(modelItem => Model[i].Name)
								</td>
								<td>
									@Html.DisplayFor(modelItem => Model[i].Station)
									@Html.HiddenFor(modelItem => Model[i].Station)
								</td>
								<td>
									@Html.ActionLink("Update State Data", "UpdateStation", new { id = Model[i].Id }) |
									@Html.ActionLink("Delete", "DeleteState", new { id = Model[i].Id })  | Select to Include in Charts
			
								</td>
							</tr>
						}
						</tbody>

        			</table>
        			<input type="submit" value="submit" />
				}
	
				<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">
		

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

View

 
@model List<HelloWorldMvcApp.State>
@{
    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>@Html.Raw(ViewBag.Message)</h1>
    
                @using (Html.BeginForm())
                {
                    <table class="table">
                        <thead>
                        <tr>
                            <th></th>
                            <th>
                                @Html.DisplayNameFor(model => Model[0].Name)
                            </th>
                            <th>
                                @Html.DisplayNameFor(model => Model[0].Station)
                            </th>
                            <th></th>
                        </tr>
                        </thead>
                        <tbody>
                        @for (var i = 0; i < Model.Count(); i++)
                        {
                            <tr>
                                <td>
                                    @Html.CheckBoxFor(modelItem => Model[i].Selected) @* new bool field *@
                                </td>
                                <td>
                                    @Html.DisplayFor(modelItem => Model[i].Name)
                                    @Html.HiddenFor(modelItem => Model[i].Name)
                                </td>
                                <td>
                                    @Html.DisplayFor(modelItem => Model[i].Station)
                                    @Html.HiddenFor(modelItem => Model[i].Station)
                                </td>
                                <td>
                                    @Html.ActionLink("Update State Data", "UpdateStation", new { id = Model[i].Id }) |
                                    @Html.ActionLink("Delete", "DeleteState", new { id = Model[i].Id })  | Select to Include in Charts
            
                                </td>
                            </tr>
                        }
                        </tbody>
​
                    </table>
                    <input type="submit" value="submit" />
                }
    
                <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">
        
​
        </script>
    </body>
</html>
​

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

namespace HelloWorldMvcApp
{
	public class HomeController : Controller
	{
		[HttpGet]
		public ActionResult Index()
		{
			var list = new List<State>()
			{
				new State(){ Id = 1, Name = "Alabama", Station = "AL"},
				new State(){ Id = 2, Name = "Mississippi", Station = "MS"},
				new State(){ Id = 3, Name = "Georgia", Station = "GA"},
				new State(){ Id = 4, Name = "Florida", Station = "FL"}
			};
			ViewBag.Message = "Select some states";
			
			return View(list);
		}


		[HttpPost]
		public ActionResult Index(List<State> model)
		{
			var message = new StringBuilder();
			message.AppendLine("Selected States<br>");
			model.ForEach(a => {
					if (a.Selected == true)
						message.AppendLine(string.Format("{0} {1}<br>", a.Name, a.Station));
				});
			
			ViewBag.Message = message.ToString();
			
			var list = new List<State>()
			{
				new State(){ Id = 1, Name = "Alabama", Station = "AL"},
				new State(){ Id = 2, Name = "Mississippi", Station = "MS"},
				new State(){ Id = 3, Name = "Georgia", Station = "GA"},
				new State(){ Id = 4, Name = "Florida", Station = "FL"}
			};
			
			return View(list);
		}
	}
}

Controller

 
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web;
using System.Web.Mvc;
​
namespace HelloWorldMvcApp
{
    public class HomeController : Controller
    {
        [HttpGet]
        public ActionResult Index()
        {
            var list = new List<State>()
            {
                new State(){ Id = 1, Name = "Alabama", Station = "AL"},
                new State(){ Id = 2, Name = "Mississippi", Station = "MS"},
                new State(){ Id = 3, Name = "Georgia", Station = "GA"},
                new State(){ Id = 4, Name = "Florida", Station = "FL"}
            };
            ViewBag.Message = "Select some states";
            
            return View(list);
        }
​
​
        [HttpPost]
        public ActionResult Index(List<State> model)
        {
            var message = new StringBuilder();
            message.AppendLine("Selected States<br>");
            model.ForEach(a => {
                    if (a.Selected == true)
                        message.AppendLine(string.Format("{0} {1}<br>", a.Name, a.Station));
                });
            
            ViewBag.Message = message.ToString();
            
            var list = new List<State>()
            {
                new State(){ Id = 1, Name = "Alabama", Station = "AL"},
                new State(){ Id = 2, Name = "Mississippi", Station = "MS"},
                new State(){ Id = 3, Name = "Georgia", Station = "GA"},
                new State(){ Id = 4, Name = "Florida", Station = "FL"}
            };
            
            return View(list);
        }
    }
}

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