RadioButtonFor Helper Handle IsSelected in MVC

Introduction

This article shows you how to use a RadioButtonFor helper handling IsSelected in MVC applications.

Create an ASP.Net Web Application as in Figure 1.

 

Figure 1: Web application

Choose MVC template as in Figure 2.

 

Figure 2: MVC template.

Add an Employee Controller as in Figures 3 and 4.

 

Figure 3: Add Controller.

 

Figure 4: Employee Controller.

EmployeeController.cs

using RadioButtonForApp_MVC.Models;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;

namespace RadioButtonForApp_MVC.Controllers
{
    public class EmployeeController : Controller
    {
        //
        // GET: /Employee/
        public ActionResult Index()
        {
            Employee emp = new Employee();
            return View(emp);
        }


        [HttpPost]
        public string Index(Employee emp)
        {
            if (string.IsNullOrEmpty(emp.SelectedDepartments))
            {
                return "You did not select any option";
            }
            else
                return "You selected department is" + emp.SelectedDepartments;

        }
    }
}

Create an Employee Class as in Figures 5 and 6.

 

Figure 5: Employee Class

 

Figure 6: Employee Class

Employee.cs

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

namespace RadioButtonForApp_MVC.Models
{
    public class Employee
    {
        public string SelectedDepartments { get; set; }
        public List<Department> Departments
        {
            get
            {
                EmployeeEntities db = new EmployeeEntities();
                return db.Departments.ToList();
            }
        }
    }
}

Set up the Entity Framework as in Figures 7 and 8.

 

Figure 7: Add ADO.NET Entity Framework

 

Figure 8: Connection setting

Add the View as in Figures 9 and 10.

 

Figure 9: Add View

 

Figure 10: Index View

Index.cshtml 

@model  RadioButtonForApp_MVC.Models.Employee

@{
    ViewBag.Title = "Index";
}

<h2>Index</h2>
@using (Html.BeginForm("Index", "Employee", FormMethod.Post))
{
    foreach (var department in Model.Departments)
    {

        @Html.RadioButtonFor(p => p.SelectedDepartments, department.DepartmentName, department.IsSelected == true ? new { Checked = "checked" } : null)@department.DepartmentName
    }
    <br />
    <input type="submit" value="Submit" />
}

The output of the application is as in the following.

 

Figure 11: Index

 

Figure 12: IsSelected

Summary

In this article we saw how to use the RadioButtonFor helper handling IsSelected in MVC applications.
Happy coding!