The code-behind feature of ASP.NET enables you to divide an ASP.NET page into two files - one consisting of the presentation data, and the second, which is also called the code-behind file, consisting of all the business logic. The presentation data contains the interface elements, such as HTML controls and Web server controls, and the code-behind contains the event-handling process to handle the events that are fired by these controls. The file that contains the presentation data has the .aspx extension. The code behind file has either the .cs extension (if you are using the programming language C#) or the .vb (if you are using the programming language Visual Basic .NET) extension.
Asp.net 3.0 have some new feature Like Windows Presentation Foundation,Windows Communication Foundation,Windows Workflow Foundation,Windows Card Space. these feature doesn't have asp.net 2.0 .
Information about ASPNET can be found on the ASPNET website. Anything one needs to know about using this application framework for web development purposes can be found there.
6
VBScript
Asp.Net is client server architecture.
stringbuilder
Question need some more clarification
Asp.net provide many useful feature as compare to other programming platform.Easy Programming ModelFlexible Language Options ( Asp.net is support more then 25 .net languages)Rich Class FrameworkCompiled executionWeb-Farm Session StateMemory Leak, Dead Lock and Crash ProtectionXML Web Servicesand many more feature available.
george
active server page network
active server pages.net
You can control an ASPnet page to where only users can access it by going to the white list. This regulates the access to only users assigned by the administrator.