ASP.NET is an

open-source Open source is source code that is made freely available for possible modification and redistribution. Products include permission to use the source code, design documents, or content of the product. The open-source model is a decentralized sof ...

server-side In the client–server model, server-side refers to programs and operations that run on the server. This is in contrast to client-side programs and operations which run on the client. General concepts Typically, a server is a computer application ...

web-application framework designed for

web development Web development is the work involved in developing a website for the Internet (World Wide Web) or an intranet (a private network). Web development can range from developing a simple single static page of plain text to complex web applications ...

to produce dynamic web pages. It was developed by

Microsoft Microsoft Corporation is an American multinational technology corporation producing computer software, consumer electronics, personal computers, and related services headquartered at the Microsoft Redmond campus located in Redmond, Washing ...

to allow

programmer A computer programmer, sometimes referred to as a software developer, a software engineer, a programmer or a coder, is a person who creates computer programs — often for larger computer software. A programmer is someone who writes/creates ...

s to build dynamic

web site A website (also written as a web site) is a collection of web pages and related content that is identified by a common domain name and published on at least one web server. Examples of notable websites are Google, Facebook, Amazon, and Wikipe ...

s, applications and

service Service may refer to: Activities * Administrative service, a required part of the workload of university faculty * Civil service, the body of employees of a government * Community service, volunteer service for the benefit of a community or a pu ...

s. The name stands for Active Server Pages Network Enabled Technologies. It was first released in January 2002 with version 1.0 of the

.NET Framework The .NET Framework (pronounced as "''dot net"'') is a proprietary software framework developed by Microsoft that runs primarily on Microsoft Windows. It was the predominant implementation of the Common Language Infrastructure (CLI) until bein ...

and is the successor to Microsoft's

Active Server Pages Active Server Pages (ASP) is Microsoft's first server-side scripting language and engine for dynamic web pages. It was first released in December 1996, before being superseded in January 2002 by ASP.NET. History Initially released as an add ...

(ASP) technology. ASP.NET is built on the

Common Language Runtime The Common Language Runtime (CLR), the virtual machine component of Microsoft .NET Framework, manages the execution of .NET programs. Just-in-time compilation converts the managed code (compiled intermediate language code) into machine instructio ...

(CLR), allowing programmers to write ASP.NET code using any supported

.NET language The domain name net is a generic top-level domain (gTLD) used in the Domain Name System of the Internet. The name is derived from the word ''network'', indicating it was originally intended for organizations involved in networking technologies ...

. The ASP.NET

SOAP Soap is a salt of a fatty acid used in a variety of cleansing and lubricating products. In a domestic setting, soaps are surfactants usually used for washing, bathing, and other types of housekeeping. In industrial settings, soaps are use ...

extension framework allows ASP.NET components to process SOAP messages. ASP.NET's successor is

ASP.NET Core ASP.NET Core is a free and open-source web framework and successor to ASP.NET, developed by Microsoft. It is a modular framework that runs on both the full .NET Framework, on Windows, and the cross-platform .NET. However, ASP.NET Core version 3 on ...

. It is a re-implementation of ASP.NET as a modular

web framework A web framework (WF) or web application framework (WAF) is a software framework that is designed to support the development of web applications including web services, web resources, and web APIs. Web frameworks provide a standard way to build and ...

, together with other frameworks like Entity Framework. The new framework uses the new open-source

.NET Compiler Platform .NET Compiler Platform, also known by its codename Roslyn, is a set of open-source compilers and code analysis APIs for C# and Visual Basic (VB.NET) languages from Microsoft.

(codename "Roslyn") and is

cross platform In computing, cross-platform software (also called multi-platform software, platform-agnostic software, or platform-independent software) is computer software that is designed to work in several computing platforms. Some cross-platform software r ...

ASP.NET MVC ASP.NET MVC is a web application framework developed by Microsoft that implements the model–view–controller (MVC) pattern. It is no longer in active development. It is open-source software, apart from the ASP.NET Web Forms component, which is ...

, ASP.NET Web API, and ASP.NET Web Pages (a platform using only Razor pages) have merged into a unified MVC 6.

Programming models

ASP.NET supports a number of programming models for building web applications: *

ASP.NET Web Forms ASP.NET Web Forms is a web application framework and one of several programming models supported by the Microsoft ASP.NET technology. Web Forms applications can be written in any programming language which supports the Common Language Runtime, su ...

– A framework for building modular pages out of components, with UI events being processed server-side. *

– allows for building web pages using the

model–view–controller Model–view–controller (MVC) is a software architectural pattern commonly used for developing user interfaces that divide the related program logic into three interconnected elements. This is done to separate internal representations of infor ...

design pattern. * ASP.NET Web Pages – A lightweight syntax for adding dynamic code and data access directly inside HTML markup. *

ASP.NET Web API ASP.NET MVC is a web application framework developed by Microsoft that implements the model–view–controller (MVC) pattern. It is no longer in active development. It is open-source software, apart from the ASP.NET Web Forms component, which is ...

– A framework for building

Web API A web API is an application programming interface for either a web server or a web browser. It is a web development concept, usually limited to a web application's client-side (including any web frameworks being used), and thus usually does not in ...

s on top of the

. *

ASP.NET WebHooks ASP.NET is an open-source, server-side web-application framework designed for web development to produce dynamic web pages. It was developed by Microsoft to allow programmers to build dynamic web sites, applications and services. The name stan ...

– Implements the

Webhook A webhook in web development is a method of augmenting or altering the behavior of a web page or web application with custom callbacks. These callbacks may be maintained, modified, and managed by third-party users and developers who may not neces ...

pattern for subscribing to and publishing events via HTTP. * SignalR – A real-time communications framework for bi-directional communication between client and server. Other ASP.NET extensions include: * ASP.NET Handler – Components that implement the System.Web.IHttpHandler interface. Unlike ASP.NET Pages, they have no HTML-markup file, no events and other supporting. All they have is a code-file (written in any .NET-compatible language) that writes some data to the server HTTP response. HTTP handlers are similar to

ISAPI The Internet Server Application Programming Interface (ISAPI) is an N-tier API of Internet Information Services (IIS), Microsoft's collection of Windows-based web server services. The most prominent application of IIS and ISAPI is Microsoft's web ...

extensions. *

ASP.NET AJAX ASP.NET AJAX, formerly called Atlas, is a set of extensions to ASP.NET developed by Microsoft for implementing Ajax functionality. It is released under the Microsoft Public License (Ms-PL). Clients supporting Ajax ASP.NET AJAX runs on the follow ...

– An extension with both client-side as well as server-side components for writing ASP.NET pages that incorporate Ajax functionality. *

ASP.NET Dynamic Data ASP.NET Dynamic Data is a Ruby on Rails-inspired web application scaffolding framework from Microsoft, shipped as an extension to ASP.NET, that can be used to build data-driven web applications. It exposes tables in a database by encoding it in the ...

– A scaffolding extension to build data driven web applications.

IIS integrated pipeline

On IIS 6.0 and lower, pages written using different versions of the ASP framework cannot share session state without the use of third-party libraries. This does not apply to ASP.NET and ASP applications running side by side on IIS 7. With IIS 7.0, modules may be run in an integrated pipeline that allows modules written in any language to be executed for any request.

Third-party frameworks

It is not essential to use the standard Web forms development model when developing with ASP.NET. Noteworthy frameworks designed for the platform include: *

Base One Foundation Component Library The Base One Foundation Component Library (BFC) is a rapid application development toolkit for building secure, fault-tolerant, database applications on Windows and ASP.NET. In conjunction with Microsoft's Visual Studio integrated development envi ...

(BFC) is

RAD RAD or Rad may refer to: People * Robert Anthony Rad Dougall (born 1951), South African former racing driver * Rad Hourani, Canadian fashion designer and artist * Nickname of Leonardus Rad Kortenhorst (1886–1963), Dutch politician * Radley R ...

framework for building .NET

database In computing, a database is an organized collection of data stored and accessed electronically. Small databases can be stored on a file system, while large databases are hosted on computer clusters or cloud storage. The design of databases sp ...

and

distributed computing A distributed system is a system whose components are located on different computer network, networked computers, which communicate and coordinate their actions by message passing, passing messages to one another from any system. Distributed com ...

applications. *

DotNetNuke DNN Platform (formerly DotNetNuke) is a web content management system and web application framework based on the .NET Framework. It is open source and part of the .Net Foundation. DNN is written in C#, though it existed for many years as a VB.N ...

is an open-source solution that provides both a web application framework and a content management system that allows for advanced extensibility through modules, skins, and providers. * Castle MonoRail, an open-source

MVC MVC may refer to: Science and technology * Maximum-value composite procedure, an imaging procedure * Multivariable calculus, a concept in mathematics * Multivariable control, a concept in process engineering * Mechanical vapor compression, a desal ...

framework with an execution model similar to

Ruby on Rails Ruby on Rails (simplified as Rails) is a server-side web application framework written in Ruby under the MIT License. Rails is a model–view–controller (MVC) framework, providing default structures for a database, a web service, and web p ...

. The framework is commonly used with

Castle ActiveRecord In software engineering, the active record pattern is an Architectural pattern (computer science), architectural pattern. It is found in software that stores in-memory object data in relational databases. It was named by Martin Fowler (software engi ...

, an ORM layer built on NHibernate.

Versions

The ASP.NET releases history tightly correlates with the

releases:

Other implementations

The

Mono Mono may refer to: Common meanings * Infectious mononucleosis, "the kissing disease" * Monaural, monophonic sound reproduction, often shortened to mono * Mono-, a numerical prefix representing anything single Music Performers * Mono (Japanese b ...

Project supports "everything in .NET 4.5 except WPF, WWF, and with limited WCF and limited ASP.NET 4.5 async stack." ASP.NET can be run with Mono using one of three options:

Apache The Apache () are a group of culturally related Native American tribes in the Southwestern United States, which include the Chiricahua, Jicarilla, Lipan, Mescalero, Mimbreño, Ndendahe (Bedonkohe or Mogollon and Nednhi or Carrizaleño an ...

hosting using the mod_mono module,

FastCGI FastCGI is a binary protocol A communication protocol is a system of rules that allows two or more entities of a communications system to transmit information via any kind of variation of a physical quantity. The protocol defines the rules, s ...

hosting, and XSP.

References

Citations

General sources

External links

* *
ASP.NET
on MSDN
Some of new features in ASP.NET 4 and vs 2010 IDE
{{DEFAULTSORT:Asp.Net Free and open-source software Microsoft application programming interfaces Microsoft free software Microsoft Visual Studio Software using the Apache license Template engines Web frameworks