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From 1996 ASP birth to now past 15 years. In the short of 15 years, ASP there are major changes, until now the asp.net. The first edition of asp is 0.9 beta, since 1996, it gives birth ASP1.0 Web development bounded brought good news. Early Web application development is very tedious, that should make a simple dynamic pages need to write a lot of C code to complete this for ordinary programmer is a little too difficult. An ASP but allows the use of this simple scripting language additionally, write the code embedded in HTML pages.
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ASP introduction
From 1996 ASP birth to now past 15 years. In the short of 15 years, ASP
there are major changes, until now the asp.net. The first edition of asp is
0.9 beta, since 1996, it gives birth ASP1.0 Web development bounded
brought good news. Early Web application development is very tedious,
that should make a simple dynamic pages need to write a lot of C code to
complete this for ordinary programmer is a little too difficult. An ASP but
allows the use of this simple scripting language additionally, write the code
embedded in HTML pages. In programming use its internal components to
achieve some advanced functions such as Cookie). It's the biggest
contribution lies in its ADO (ActiveX Data Object), this component makes
the program of the database operation is very simple, so the dynamic web
design also becomes a easy. Therefore overnight, Web design program is
no longer imagined arduous tasks, as many people can do their stuff. In
1998, Microsoft to release the ASP 2.0. It is part of the Pack Windows NT4
Option, as IIS 4.0 of module.in accessories. It with ASP 1.0 are the main
difference between its external components can be initialized, so that in the
ASP program of all internal components have independent memory space,
and available for the transaction. By 2000, with the Windows 2000 success
release, the operating system IIS 5.0 ach incident ASP 3.0 also begins
popularity. Compared with ASP 2.0, ASP 3.0 advantage lies in it USES the
COM +, hence its effectiveness is better than its front version, and more
stable. In 2001, asp.net appeared. In the first development, it is the name
of the ASP +, but to with Microsoft.net plan, and to show that match the
ASP version is not to ASP3.0 complement, Microsoft will its named
asp.net. Asp.net on the structure and in front of the version is widely
divergent, it almost entirely based on the components and modular, Web
applications developers use this development environment can realize
more modular, more powerful application.As web developers, our lives
revolve around working with data. We create databases to store the data,
code to retrieve and modify it, and web pages to collect and summarize it.
This is the first tutorial in a lengthy series that will explore techniques for
implementing these common patterns in ASP. We'll start with creating a
software architecture composed of a Data Access Layer (DAL) using
Typed DataSets, a Business Logic Layer (BLL) that enforces custom
business rules, and a presentation layer composed of ASP pages that
share a common page layout. Once this backend groundwork has been
laid, we'll move into reporting, showing how to display, summarize, collect,
and validate data from a web application. These tutorials are geared to be
concise and provide step-by-step instructions with plenty of screen shots to
walk you through the process visually. Each tutorial is available in C# and
Visual Basic versions and includes a download of the complete code used.
First,ASP page features
ASP is a server-side scripting compile environment, can be used to create
and run dynamic Web pages or Web applications. ASP page can contain
text, HTML tags, common script commands and COM components, etc.
Using ASP page can be added to the interactive content (such as online
forms) and can also create using HTML page as the user interface of web
applications. Compared with HTML, ASP page has the following features:
Using ASP can realize breakthrough static HTML pages of some functions
limit to realize a dynamic web technology,
The ASP file is contained in the HTML code consisting of files, easy to
modify and testing;
On the server ASP explain procedures will be executed on the server ASP
program, and will result in HTML format teleport to the client browser, so
using various browsers can browse ASP produced a web page,
ASP provides some built-in object, use these objects can make server-side
scripting function stronger. For instance can extract from the web browser
user through HTML form information submitted, and in a script for the
information processing, and then to the web browser to send information,
ASP server ActiveX components can be used to perform various tasks,
such as access database, send Email or access the file system, etc.
As the server is the result of ASP program execution in HTML back to the
client browser, therefore users won't see ASP written by the original
program code, can prevent ASP program code being stolen. and
(7) convenient connection ACCESS and SQL database
(8) the development needs a lot of experience, otherwise you will set aside
loophole, let hackers using for injection attack. ASP are not limited to the
WEB site with HTML combining production, but also can be combined with
the XHTML and WML language production WAP mobile WEB sites. But its
principle is the same.
Second, ASP - working principle
When in Web sites into ASP function, will occur the following things:
1, user browser address bar to input the website, the default page
extensions is. Asp.
2, request to the server browser.
3, server engine starts running ASP program.
4, according to the ASP file from top to bottom, execute the order began to
treat scripting commands, executive HTML page content.
5, page information sent to the browser.
Third, ASP upgrade platform: asp.net
Operation features. 1.
Asp.net is based on the common language program in the server. Unlike
previous ASP real-time interpretation process, but a program in the
server's first run compile, executive effect, than a a explanation much
better, executive efficiency greatly enhanced. Asp.net can run in the Web
application of software developers almost all of the platform. The common
language of basic library, information mechanism, data interface treatment
can seamlessly integrate into the asp.net Web applications. Asp.net is also
independent language language - feasibility of, so, you can choose a kind
of the most suitable for your language to write your program, or put your
program in a number of language to write, now support with c #, vb.net,
Jscript, managedC++, J#. In the future, such a variety of program
language collaborative working ability to protect your present based on
COM + development program, can complete transplant to asp.net.
Codetemplate language 2.
Asp.net commonly there are two major kinds of developing language,
using the vb.net and c #, c # relative is more commonly used, because it is
the.net unique language, using the vb.net VB programming is used,
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