What is MVC ?
The Model-View-Controller (MVC) architectural pattern separates an application into three main components: the model, the view, and the controller. The ASP.NET MVC framework provides an alternative to the ASP.NET Web Forms pattern for creating Web applications. The ASP.NET MVC framework is a lightweight, highly testable presentation framework that (as with Web Forms-based applications) is integrated with existing ASP.NET features, such as master pages and membership-based authentication. The MVC framework is defined in the System.Web.Mvc assembly.
1. One ASP.NET
The Web MVC project templates integrate seamlessly with the new One ASP.NET experience. You can customize your MVC project and configure authentication using the One ASP.NET project creation wizard. An introductory tutorial to ASP.NET MVC 5 can be found at Getting Started with ASP.NET MVC 5.
For information on upgrading MVC 4 projects to MVC 5, see How to Upgrade an ASP.NET MVC 4 and Web API Project to ASP.NET MVC 5 and Web API 2.
The MVC project template has been updated to use Bootstrap to provide a sleek and responsive look and feel that you can easily customize. For more information, see Bootstrap in the Visual Studio 2013 web project templates.
ASP.NET Scaffolding is a code generation framework for ASP.NET Web applications. It makes it easy to add boilerplate code to your project that interacts with a data model.
In previous versions of Visual Studio, scaffolding was limited to ASP.NET MVC projects. With Visual Studio 2013, you can now use scaffolding for any ASP.NET project, including Web Forms. Visual Studio 2013 does not currently support generating pages for a Web Forms project, but you can still use scaffolding with Web Forms by adding MVC dependencies to the project. Support for generating pages for Web Forms will be added in a future update.
4. ASP.NET Identity
The MVC project templates have been updated to use ASP.NET Identity for authentication and identity management. A tutorial featuring Facebook and Google authentication and the new membership API can be found at Create an ASP.NET MVC 5 App with Facebook and Google OAuth2 and OpenID Sign-on and Deploy a Secure ASP.NET MVC app with Membership, OAuth, and SQL Database to a Windows Azure Web Site.
5. Attribute routing
ASP.NET MVC now supports attribute routing, thanks to a contribution by Tim McCall, the author of http://attributerouting.net. With attribute routing you can specify your routes by annotating your actions and controllers.
6. Authentication filters
Authentication filters are a new kind of filter in ASP.NET MVC that run prior to authorization filters in the ASP.NET MVC pipeline and allow you to specify authentication logic per-action, per-controller, or globally for all controllers. Authentication filters process credentials in the request and provide a corresponding principal. Authentication filters can also add authentication challenges in response to unauthorized requests. See ASP.NET MVC 5 Authentication Filters, Authentication Filters in ASP.NET MVC 5 and Finally the new ASP.NET MVC 5 Authentication Filters!.
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