In this article we will discuss implementing CheckBoxList functionality in asp.net MVC application.
We will be using City table
Step 1: Create a table using the following script with data:
USE[ShoppingZone]
GO
/******Object: Table [dbo].[City] Script Date: 04/22/2016 18:22:41 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[City](
[CityId] [int] IDENTITY(1,1) NOT NULL,
[Name] [nvarchar](50) NOT NULL,
[IsSelected] [bit] NOT NULL,
CONSTRAINT[PK_City] PRIMARY KEYCLUSTERED
(
[CityId] ASC
)WITH(PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
SET IDENTITY_INSERT [dbo].[City]ON
INSERT [dbo].[City] ([CityId], [Name], [IsSelected]) VALUES (1, N'Mumbai', 0)
INSERT [dbo].[City] ([CityId], [Name], [IsSelected]) VALUES (2, N'London', 1)
INSERT [dbo].[City] ([CityId], [Name], [IsSelected]) VALUES (3, N'New York', 0)
INSERT [dbo].[City] ([CityId], [Name], [IsSelected]) VALUES (4, N'brussels', 0)
INSERT [dbo].[City] ([CityId], [Name], [IsSelected]) VALUES (5, N'sydney', 0)
INSERT [dbo].[City] ([CityId], [Name], [IsSelected]) VALUES (6, N'Riyadh', 0)
INSERT [dbo].[City] ([CityId], [Name], [IsSelected]) VALUES (7, N'seoul', 0)
SET IDENTITY_INSERT [dbo].[City]OFF
Step 2: Create an ado.net entity data model using table City and generate entity for that.
Step 3: Right click on the "Controllers" folder and add "CheckList" controller. Copy and paste the following code. Please make sure to include "MVC_tutorials.Models" namespace.
using MVC_tutorials.Models;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web;
using System.Web.Mvc;
namespace MVC_tutorials.Controllers
{
public class CheckListController : Controller
{
models db = new models();
[HttpGet]
public ActionResult Index()
{
return View(db.Cities);
}
[HttpPost]
public string Index(IEnumerable<City> cities)
{
if (cities.Count(x => x.IsSelected) == 0)
{
return "You have not selectedany City";
}
else
{
StringBuilder sb = new StringBuilder();
sb.Append("You selected - ");
foreach (City city in cities)
{
if (city.IsSelected)
{
sb.Append(city.Name + ", ");
}
}
sb.Remove(sb.ToString().LastIndexOf(","), 1);
return sb.ToString();
}
}
}
}
Step 4: Create a folder and name it as EditorTemplates inside CheckList folder. Right click on the folder and create a view name it as “city”. Copy and paste the following code.
@modelMVC_tutorials.Models.City
@{
ViewBag.Title = "City";
}
@Html.HiddenFor(x => x.CityId)
@Html.HiddenFor(x => x.Name)
@Html.CheckBoxFor(x => x.IsSelected)
@Html.DisplayFor(x => x.Name)
Step 5: Right click on the "Index" action method in the "CheckListController" and add "Index" view. Copy and paste the followingcode.
@modelIEnumerable<MVC_tutorials.Models.City>
@{
ViewBag.Title = "Index";
}
<div style="font-family:Arial">
<h2>Index</h2>
@using (Html.BeginForm())
{
@Html.EditorForModel()
<br />
<input type="submit" value="Submit" />
}
</div>
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