Introduction to ASP.NET
ASP.NET
ASP.NET is a server-side technology for creating
dynamic, standards-based Web sites and services that are accessible across
multiple platforms including mobile devices. It is part of the .NET-based
environment; you can author applications in any .NET compatible language,
including Visual Basic .NET, C#, and J#. Additionally, the entire .NET
Framework class library is available to any ASP.NET application
- An ASP.NET page is a
server-side text file saved with the .aspx extension. The internal
structure of the page is extremely modular and comprises three distinct
sections page directives, code, and page layout
- Page directives: Page directives set up the environment in which
the page will run, specify how the HTTP runtime should process the page,
and determine which assumptions about the page are safe to make.
Directives also let you import namespaces to simplify coding, load
assemblies not currently in the global assembly cache (GAC), and register
new controls with custom tag names and namespace prefixes.
The code section contains handlers for page and
control events, plus optional helper routines. Any source code pertinent
to the page can be inserted inline or attached to the page through a
separate file.
The page layout represents the skeleton of the
page. It includes server controls, literal text, and HTML tags. The user
interface of the server controls can be fleshed out a bit using declared
attributes and control properties.
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