C# Online Compiler | .NET Fiddle

<no name> by Anonymous

using System;
using System.Collections.Generic;
using System.Data;
using System.Data.Entity;
using System.Linq;
using System.Net;
using System.Web;
using System.Web.Mvc;
using System.IO;
using System.Text;
using System.Text.RegularExpressions;

namespace HelloWorldMvcApp
{
	public class Home
	{
	}
}

Model

​x
 
using System;
using System.Collections.Generic;
using System.Data;
using System.Data.Entity;
using System.Linq;
using System.Net;
using System.Web;
using System.Web.Mvc;
using System.IO;
using System.Text;
using System.Text.RegularExpressions;
​
namespace HelloWorldMvcApp
{
    public class Home
    {
    }
}

@model HelloWorldMvcApp.Home
@{
	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>File Upload Sample</title>

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

	</head>
	
	<body>
		<div class="container">
			<div class="col-md-6 col-md-offset-3">
				<h1>Hello Stackers</h1>
	
				@using (Html.BeginForm())
				{
					<div class="form-group">
									
						    <label for="file">Upload Files:</label>
    						<input type="file" multiple name="files" id="files" class="form-control"/><br><br>
    						<input type="submit" value="Upload Files" class="form-control"/>
					</div>
				}
						<div>@ViewBag.Result</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>
		
	</body>
</html>

View

 
@model HelloWorldMvcApp.Home
@{
    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>File Upload Sample</title>
​
        <!-- CSS Includes -->
        <link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css">
​
    </head>
    
    <body>
        <div class="container">
            <div class="col-md-6 col-md-offset-3">
                <h1>Hello Stackers</h1>
    
                @using (Html.BeginForm())
                {
                    <div class="form-group">
                                    
                            <label for="file">Upload Files:</label>
                            <input type="file" multiple name="files" id="files" class="form-control"/><br><br>
                            <input type="submit" value="Upload Files" class="form-control"/>
                    </div>
                }
                        <div>@ViewBag.Result</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>
        
    </body>
</html>
​

using System;
using System.Collections.Generic;
using System.Data;
using System.Data.Entity;
using System.Linq;
using System.Net;
using System.Web;
using System.Web.Mvc;
using System.IO;
using System.Text;
using LumenWorks.Framework.IO.Csv;
using System.Text.RegularExpressions;

namespace HelloWorldMvcApp
{
	public class HomeController : Controller
	{
		[HttpGet]
		public ActionResult Index()
		{
			return View();
		}

		[HttpPost]
		public ActionResult Index(HttpPostedFileBase upload)
		{
			if (ModelState.IsValid)
			{
				if (upload != null && upload.ContentLength > 0)
				{
					// Validation content length 
					if (upload.FileName.EndsWith(".csv") || upload.FileName.EndsWith(".CSV"))
					{
						//extention validation 
						ViewBag.Result = "Correct File Uploaded";
					}
				}
			}

			return View();
		}
	}
}

Controller

 
using System;
using System.Collections.Generic;
using System.Data;
using System.Data.Entity;
using System.Linq;
using System.Net;
using System.Web;
using System.Web.Mvc;
using System.IO;
using System.Text;
using LumenWorks.Framework.IO.Csv;
using System.Text.RegularExpressions;
​
namespace HelloWorldMvcApp
{
    public class HomeController : Controller
    {
        [HttpGet]
        public ActionResult Index()
        {
            return View();
        }
​
        [HttpPost]
        public ActionResult Index(HttpPostedFileBase upload)
        {
            if (ModelState.IsValid)
            {
                if (upload != null && upload.ContentLength > 0)
                {
                    // Validation content length 
                    if (upload.FileName.EndsWith(".csv") || upload.FileName.EndsWith(".CSV"))
                    {
                        //extention validation 
                        ViewBag.Result = "Correct File Uploaded";
                    }
                }
            }
​
            return View();
        }
    }
}

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