radiobuttonfor in mvc example | entity framework

Example of RadioButtonfor helper with entity framework

• HtmlHelper class include two extension methods to generate a <input type=”radio”> element in a razor view: RadioButton() and RadioButtonFor().

RadioButton() method Signature:

MvcHtmlString RadioButton(string name, object value, bool isChecked, object htmlAttributes)

• RadioButtonFor helper method is a strongly typed extension method. It generates <input type=”radio”> element for the property specified using a lambda expression.

RadioButtonFor() method Signature:

 

MvcHtmlString RadioButtonFor(<Expression<Func<TModel,TValue>> expression, object value, object htmlAttributes)

CREATE TABLE [dbo].[Category5](
	[CatId] [int] IDENTITY(1,1) NOT NULL,
	[CategoryName] [nvarchar](max) NULL,
	[isselected] [bit] NULL CONSTRAINT [DF_Category5_isselected]  DEFAULT ((0)),
 CONSTRAINT [PK_dbo.Category5] PRIMARY KEY CLUSTERED 
(
	[CatId] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]

GO

//------------------------------------------------------------------------------
// <auto-generated>
//     This code was generated from a template.
//
//     Manual changes to this file may cause unexpected behavior in your application.
//     Manual changes to this file will be overwritten if the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------

namespace RadioButtonForEx.Models
{
    using System;
    using System.Collections.Generic;
    
    public partial class Category5
    {
        public int CatId { get; set; }
        public string CategoryName { get; set; }
        public bool isselected { get; set; }
    }
    public class RadioButtonListClass
    {
        public List<Category5> radionbuttonlist { get; set; }
        public string selectedradio { get; set; }
    }
}

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

namespace RadioButtonForEx.Controllers
{
    public class HomeController : Controller
    {
        // GET: Home
        public ActionResult Index()
        {
            ganesha2Entities db = new Models.ganesha2Entities();
            var data = db.Category5.ToList();
            RadioButtonListClass obj = new RadioButtonListClass();
            obj.selectedradio = "";
            obj.radionbuttonlist = data;
            return View(obj);
        }
        [HttpPost]
        public ActionResult Index(RadioButtonListClass obj)
        {
            if(obj.selectedradio !=null)
            {
                Session["item"] = obj.selectedradio;
            }
            return RedirectToAction("ShowData");
        }
        public ActionResult ShowData()
        {
            return View();
        }
    }
}

@model RadioButtonForEx.Models.RadioButtonListClass
@{
    ViewBag.Title = "Index";
}

<h2>Index</h2>
@using (Html.BeginForm())
{
    for(int i=0;i<Model.radionbuttonlist.Count();i++)
    {
        @Html.RadioButtonFor( m=>Model.selectedradio,Model.radionbuttonlist[i].CatId)
        @Html.Label(Model.radionbuttonlist[i].CategoryName)
    }
    <input type="submit" name="name" value="Get Value" />
}

@{
    ViewBag.Title = "ShowData";
}

<h2>ShowData</h2>
<h3>@Session["item"]</h3>

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