Input logic, business logic, and UI logic is called MVC. MVC is designed on following three attribute. M (model), V (View), C (controller) as you see in Below Diagram.
- Model: To build a model with business rules, validation and aggregation logic is called Model. For Example, Linq to SQL.dbml files.
- View: UI of asp.net Application is called View. For Example, Home, Account, Shared three folders in View Folder in this Project. In the Account folder is used for UI for logging and change password.
- Controller: Logic of application is called Controller. For Example, In this Project Controller folder includes AccountController and HomeController files which contains the flow of login information
ASP.NET MVC 2 builds on ASP.NET MVC 1.0. MVC 2 can be used with asp.net 3.5 SP1 and With ASP.NET 4.O. MVC 2 by default installed on your computer when you install Visual Studio 2010. You can download latest version of MVC from MVC download page.
In ASP.NET MVC 2 improves the maintainability of the application. You can Update asp.net MVC 1.0 protect to ASP.NET MVC 2. ASP.NET MVC2 introduces new features.
New Features
- Template Helper to use Lambda Expression.
- Asynchronous Controllers for parallel long running tasks and enable to Asynchronous Operations Matter
- Area to split large project to avoid the complexity of the large project. Right Click on your Project in the Solution Explorer, click Add and then click Area. Now you can add forum or admin in the Area
- Strongly Typed UI Helpers to view model level error instead of all validation Errors.
- HiddenInputAttribute Class for Templated Helpers when DisplayValue is false nothing will be happen but when DisplayValue is true then input hidden element will be rendered when displaying model in editor template
- Enhancements to ModelBinders
- Automatic HTML-Encoding
- Enhancements to ModelBinders supports are:
- Increasing Security with HTTPS
- Avoiding the JSON Array Attack
- Short Notation for AcceptVerbs Attribute
- Overriding the HTTP Verb
- Binary Binding
- Ability to render subsections of site pages
Example
Open your Visual Studio 2010. Create New Project, window will be display on your screen, by default .Net Framework 4 is selected. Expand Visual C# and click on Web. Select ASP.NET MVC 2 Web Application as you see in below figure.
Unit Test
If you want to create Unit Test then select Yes option and give the Test Project name. By default name of the test project is the application project MvcApplication.Tests. You can change the name of project as shown in below figure.
Solution Explorer
Project is created as you see in the below Figure. Content folder includes CSS file, Script contains js Files. You have three main folders Controller, Models and Views
Controller
Below is the Simple HomeController class.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
namespace MvcApplication.Controllers
{
[HandleError]
public class HomeController : Controller
{
public ActionResult Index()
{
ViewData["Message"] = "This is my First MVC Web Project";
return View();
}
public ActionResult About()
{
return View();
}
}
}
Views (Index.aspx Page)
Here is the Code of index.aspx Page
<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">
<h2><%: ViewData["Message"] %></h2>
<p>
To learn more about ASP.NET MVC visit <a href="http://asp.net/mvc" title="ASP.NET MVC Website">http://asp.net/mvc</a>.
</p>
</asp:Content>
Global.asax.cs
Default created MVcApplication class in Global.aspx.cs file as shown in below code.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.Web.Routing;
namespace MvcApplication
{
// Note: For instructions on enabling IIS6 or IIS7 classic mode,
// visit http://go.microsoft.com/?LinkId=9394801
//Author:Aamir Hasan
public class MvcApplication : System.Web.HttpApplication
{
public static void RegisterRoutes(RouteCollection routes)
{
routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
routes.MapRoute(
"Default", // Route name
"{controller}/{action}/{id}", // URL with parameters
new { controller = "Home", action = "Index", id = UrlParameter.Optional } // Parameter defaults
);
}
protected void Application_Start()
{
AreaRegistration.RegisterAllAreas();
RegisterRoutes(RouteTable.Routes);
}
}
}
Unit-test project
you will add a controller with an action method and a view, and you will add a unit test for the action method.
Explorer View
Compile and run the Project and you will see Result in the Explorer
Download
Mvc2Application.rar (47.36 kb)