ASP.NET (Active server Pages .NET, current version 2.0 (2006)) a server-lateral technology from Microsoft is to providing applications of Web to basis of the Microsoft.NET Frameworks.

ASP.NET did not step thereby 2002 with first release the follow-up into the years of the ASP come (Active server Pages) on has however today except the name against the general opinion any longer much with the old technology to do.

The most serious difference is thereby the line by line processing of the ASP Skripte by an interpreter, whereas ASP.NET applications at the server are compiled and are not thus no more interpreted. This happens just in time - with the first call of a ASP.NET Webforms (.aspx). From this a performance projection/lead results to Perl or PHP in relation to interpreter languages as for instance. ASP.NET offers in particular in connection with Web controls and the IDE Visual Studio .NET von Microsoft a comfortable possibility of separating the application logic (the C#, VB.Net code) from the layout of the HTML side. This calls Microsoft Codebehind technology.

With the Tool Visual Web Developer express edition (current version 5) can be likewise provided ASP.NET web pages. Microsoft places it free of charge to the Download to the order. It contains also a Web server, in order to implement and test the ASP.NET web pages on the own computer.

With ASP.NET applications of Web in arbitrary supported.NET languages can be provided, for example to C#, VB.NET, J#, Delphi.NET, Eiffel.NET, F# or Managed C++.

ASP.NET contains a central concept named Web control, which makes WHEEL possible of applications of Web, as components can receive their status by the ViewState technology also over subsequente of side calls, which is only limited possible with conventional techniques at present. A similar concept pursues Sun with the JavaServer Faces (JSF).

For the development of applications of Web with ASP.NET stands with Microsoft Visual Studio .NET an efficient wheel environment with visual designers for order. Parts of these are also in the Web matrix (for ASP.NET 1,1), one of the Community developed development environment available. For ASP.NET there are 2,0 Visual WebDeveloper express 2005, a completely free and efficient Subset of the Visual Studio.

ASP.NET knows at present with Microsoft the IIS (5.0/6.0) starting from Windows 2000 (no Windows NT support) as well as the XSP Webserver (part of the mono project, which ASP.NET supports) to be used. With the module mod_mono ASP.NET can also, with restrictions, under which Web servers Apache are operated. Contrary to the IIS of the version 5 ASP.NET under IIS of 6 implemented starting from Windows servers is 2003 directly in the Internet information server. Clear improvements in performance could be achieved by this proceeding.

ASP.NET is final since 2002 in the version 1.0 "„"“. Since 28 October 2005 there is the final version of ASP.NET 2.0. With ASP.NET 2,0 substantially less code (according to Microsoft 70 per cent) is needed, in order to provide a dynamic Web Site.

Future

At present Microsoft ASP .NET with the technology Ajax combines and provides the AJAX Framework Microsoft ATLAS. The moreover one 2007 WPF will appear, which are to replace ASP.NET in the Rich Client range.

Literature

• Holger Schwichtenberg: ASP.NET 2,0 - The developer book. Microsoft press, 2006, ISBN 3860635441 and ISBN 3860635468
• Hannes Preishuber: ASP.NET 2,0 Crash course. Microsoft press, 2006, ISBN 3860639889
• Chris hard, John Kauffman, Dave Sussman and Chris Ullman: Beginning ASP.NET 2.0. Wiley Publishing, Inc. , 2006, ISBN 0-7645-8850-8 (closely.)

Related links

• Official Website of Microsoft
• German-language portal for ASP.NET developers
• Entrance in ASP.NET, free on-line book
• Many good German articles over ASP.NET
• ASP.NET Community - examples, article, forums, references
• Magazine for Web developers
• Visual Web Developer express 2005 Download
• ASP.NET module for the Apache Web server
• German ASP developer forum

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