Differences between ASP and ASP.NET
ASP.NET has better language support, a large set of new controls
and XML based
components, and better user authentication.
ASP.NET provides increased performance by running compiled code.
ASP.NET code is not fully backward compatible with ASP.
New in ASP.NET
- Better language support
- Programmable controls
- Event-driven programming
- XML-based components
- User authentication, with accounts and roles
- Higher scalability
- Increased performance - Compiled code
- Easier configuration and deployment
- Not fully ASP compatible
ASP.NET uses the new ADO.NET.
ASP.NET supports full Visual Basic, not VBScript.
ASP.NET supports C# (C sharp) and C++.
ASP.NET supports JScript as before.
ASP.NET contains a large set of HTML controls. Almost all
HTML elements on a page can be defined as ASP.NET control objects that can be
controlled by scripts.
ASP.NET also contains a new set of object oriented input controls, like programmable list
boxes and validation controls.
A new data grid control supports sorting,
data paging, and everything you expect from a dataset control.
Event Aware Controls
All ASP.NET objects on a Web page can expose events that can be processed by
Load, Click and Change events handled by code makes
coding much simpler and much better organized.
ASP.NET components are heavily based on XML. Like the new AD Rotator, that
uses XML to store advertisement information and configuration.
ASP.NET supports forms-based user authentication, including cookie management
and automatic redirecting
of unauthorized logins.
(You can still do your custom login page and custom user checking).
User Accounts and Roles
ASP.NET allows for user accounts and roles, to give each user (with a given
role) access to different server code and executables.
Much has been done with ASP.NET to provide greater scalability.
Server to server communication has been greatly enhanced, making it possible
to scale an application over several servers. One example of this is the ability
to run XML parsers, XSL transformations and even resource hungry session objects
on other servers.
The first request for an ASP.NET page on the server will compile the ASP.NET code
and keep a cached copy in memory. The result of this is greatly increased
Configuration of ASP.NET is done with plain text files.
can be uploaded or changed while the application is running. No need to restart
the server. No more metabase or registry puzzle.
No more server restart to deploy or replace compiled code. ASP.NET simply
redirects all new requests to the new code.
ASP.NET is not fully compatible with earlier versions of ASP, so most of the old ASP
code will need some changes to run under ASP.NET.
To overcome this problem, ASP.NET uses a new file extension ".aspx".
This will make ASP.NET applications able to run side by side with standard ASP
applications on the same server.
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