ASP.NET Tutorial

ASP.NET is a development framework for building web pages and web sites with HTML, CSS, JavaScript and server side scripting.

ASP.NET supports three different development models:

Web Pages, MVC (Model View Controller), and Web Forms:

Web Pages
MVC Web Forms

Single pages (SPA) model

Similar to PHP and classic ASP

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ASP.NET Versions

ASP.NET 4.6 is the latest version of ASP.NET.

ASP.NET 5 was expected to be a important redesign of ASP.NET.

However, the development of ASP.NET 5 has been stopped in favor of a completely new ASP.NET CORE.

Classic ASP - Active Server Pages

Active Server Pages (ASP), also known as Classic ASP, was introduced in 1998 as Microsoft's first server side scripting language.

ASP is a technology that enables scripts in web pages to be executed by an Internet server.

ASP pages have the file extension .asp, and are normally written in VBScript.

If you want to learn Classic ASP, visit our Classic ASP Tutorial.


ASP.NET is a new ASP generation. It is not compatible with Classic ASP

ASP.NET pages have the extension .aspx, and are normally written in VB (Visual Basic) or C# (C sharp).

When a browser requests an ASP.NET file, the ASP.NET engine reads the file, compiles and executes the scripts in the file, and returns the result to the browser as plain HTML.

ASP.NET Development Tools

ASP.NET is supported by the following development tools:

  • Visual Studio Code
  • Visual Studio and Visual Studio Express