Introduction

In this article, I will show you how to add a RadioButton control in the Web API. We use the radio button in a group in which we select only one at a time. When the user uses the radio button then the user makes a choice among a set of absolute and related options. The user can select only one option from the radio buttons set. Radio Buttons are so called because they work like channels on a radio.

Now see an example of adding the radio button control in the Web API.

Step 1

Create a Web API application as in the following:

  • Start Visual Studio 2012.
  • From the start window select "Installed" -> "Visual C#" -> "Web".
  • Select "ASP.NET MVC4 Web Application" and click the "OK" button.

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  • From the "MVC4 project" window select "Web API".

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  • Click the "OK" button.

Step 2

Select the "HomeController.cs" file and write some code. This file exists in:

  • In the "SolutionExplorer".
  • Select "Controller" -> "HomeController".

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Add the following code in this file:

  1. using System;
  2. using System.Collections.Generic;
  3. using System.Linq;
  4. using System.Web;
  5. using System.Web.Mvc;
  6. namespace RadioAPI.Controllers
  7. {
  8. public class HomeController : Controller
  9. {
  10. public ActionResult Index()
  11. {
  12. return View();
  13. }
  14. [AcceptVerbs(HttpVerbs.Post)]
  15. public string Display(FormCollection form)
  16. {
  17. string selectlanguage = form["language"];
  18. return "Selected Language: <b>" + selectlanguage + "</b>";
  19. }
  20. }
  21. }

Step 3

Add a View page "MVC 4 View Page (ASPX)" named "Index.aspx".

  • In the "Solution Explorer".

  • Right Click on the "Home" -> "Add" -> "New Item".

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  • Select "Installed" -> "Visual C#" -> "Web" -> "MVC 4 View Page(ASPX)".

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  • Click the "Add" button.

Add the following code in this view page:

  1. <%@ Page Language="C#" Inherits="System.Web.Mvc.ViewPage" %>
  2. <html>
  3. <head id="Head1" runat="server">
  4. <title>Index</title>
  5. </head>
  6. <body>
  7. <% using (Html.BeginForm("Display","Home",FormMethod.Post)) { %>
  8. <div><b>Choose any Language: </b><br />
  9. <br /> <%= Html.RadioButton("language", "C#") %> C#
  10. <br /><%= Html.RadioButton("language", "C++") %> C++
  11. <br /><%= Html.RadioButton("language", "C") %> C
  12. <br /> <%= Html.RadioButton("language", "Java") %> Java
  13. <br /> <%= Html.RadioButton("language", "HTML") %> HTML
  14. <br /> <%= Html.RadioButton("language", "Javascript") %> Javascript
  15. <br /><br />
  16. <input type="submit" value="Submit" />
  17. </div>
  18. <%} %>
  19. </body>
  20. </html>

Step 4

Execute the application by pressing "F5". The output will be shown like this:

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Select any language and click on the submit button.

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