Tài liệu Appendix A: Planning for Microsoft .NET ppt

Microsoft, Active Directory, ActiveX, BizTalk Server, FoxPro, FrontPage, Hotmail, Jscript, Outlook, PowerPoint, Visio, Visual Basic, Visual C#, Visual C++, Visual Studio, Windows, and Wi

Contents

Overview 1

Appendix A: Planning for Microsoft NET

to represent any real individual, company, product, or event, unless otherwise noted Complying with all applicable copyright laws is the responsibility of the user No part of this document may

be reproduced or transmitted in any form or by any means, electronic or mechanical, for any purpose, without the express written permission of Microsoft Corporation If, however, your only means of access is electronic, permission to print one copy is hereby granted

Microsoft may have patents, patent applications, trademarks, copyrights, or other intellectual property rights covering subject matter in this document Except as expressly provided in any written license agreement from Microsoft, the furnishing of this document does not give you any license to these patents, trademarks, copyrights, or other intellectual property

 2001 Microsoft Corporation All rights reserved

Microsoft, Active Directory, ActiveX, BizTalk Server, FoxPro, FrontPage, Hotmail, Jscript, Outlook, PowerPoint, Visio, Visual Basic, Visual C#, Visual C++, Visual Studio, Windows, and Windows NT are either registered trademarks or trademarks of Microsoft Corporation in the U.S.A and/or other countries

Other product and company names mentioned herein may be the trademarks of their respective owners

Overview

Visual Studio.NET

Resources on NET

*****************************I LLEGAL FOR N ON -T RAINER U SE *****************************

Many of the servers and tools that are part of the Microsoft® NET Framework were still in development at the time this course was developed This appendix serves as a reference section that can be used after attending the course to help you locate the latest news and information about the products that are part of the NET Framework

If time permits, you can

teach this appendix, similar

to a module, by using the

Microsoft PowerPoint® file

2260A_XA.ppt

Visual Studio.NET

Visual Basic.NET

Visual C++.NET

Visual C#

*****************************I LLEGAL FOR N ON -T RAINER U SE *****************************

The Microsoft Visual Studio.NET suite of products represents a significant step forward in the domain of Web-development tools The tools integrate with the .NET Framework components and support features, such as the creation of Web forms from within the Integrated Design Environment (IDE) and easy Web Service development

This section focuses on the following languages that are part of Visual Studio.NET:

Microsoft Visual Basic.NET

Microsoft Visual C++.NET

Microsoft Visual C#™

Visual Basic.NET

Web Forms

and a source file that handles the page’s events

Web Services

implemented as a Web Service

Language Improvements

Additional Language Features

*****************************I LLEGAL FOR N ON -T RAINER U SE *****************************

Visual Basic.NET is the next step in the evolution of Microsoft Visual Basic®, a popular application development tool Visual Basic.NET incorporates many new language features and IDE capabilities

Web Forms

You can use Visual Basic.NET to develop a new type of project item—the Web form You can design Web forms from within Visual Basic.NET's IDE Web forms consist of two parts:

A Hypertext Markup Language (HTML) file that represents the page when viewed in a Web browser

A source file that handles the page's events

The result of this development is a Web form that runs on the Web server and passes only the HTML form down to the Web browser Because the code runs

on the server, Web forms are truly browser independent Unlike Active Server Pages (ASP), the code that runs on the server is compiled, rather than

interpreted, when needed, thereby increasing the speed of the server-side processing

Web Services

Visual Basic.NET allows you to quickly and easily implement any existing function in your Visual Basic project as a Web Service A new level of scope (in addition to Public and Private) for your functions and sub-procedures allows procedures to be exposed as a Web Service, rather than limiting that

functionality to the Component Object Model (COM) interface The result is that any Web application can call the procedure by using a Uniform Resource Locator (URL) In addition, you will be able to add a reference to the function from your development tools by using the URL rather than the COM interfaces

Language Improvements

Visual Basic.NET now allows you to use true object-oriented language features

in your applications Microsoft Visual Basic 6.0 and earlier versions did not support the true object-oriented programming (OOP) features of inheritance, polymorphism, and overloading Visual Basic.NET includes all three of these key OOP capabilities

Additional Language Features

Visual Basic.NET addresses the key requirements of scalability and re-use with powerful new programming features that go beyond the OOP features that were previously introduced The new features include new threading models and centralized, structured error handling

Threading models

Visual Basic.NET gives you the ability to use a free-threading model rather than restricting you to the apartment-threaded model of Visual Basic 6.0 New language constructs allow you to spawn new threads in your code In addition,

there is an AddressOf operator that can return the address of a function,

thereby allowing you to use application programming interface (API) calls that need a function pointer

Error handling

Visual Basic.NET provides a traditional "Try…Catch…" style of centralized error handling This structure will allow you to collect all run-time errors into a controlling subroutine in your application This style of error handling allows different types of run-time errors to be handled at different levels in your application

Visual C++.NET

Managed Extensions

C++ that run under the NET Framework

Improved Memory Management

*****************************I LLEGAL FOR N ON -T RAINER U SE *****************************

Visual C++.NET is the next step in the evolution of Microsoft Visual C++® and includes two major new features:

Managed (.NET) extensions

Improved memory management

Managed Extensions

The extensions allow you to write managed or NET classes in Visual C++ that run under the control of the NET Framework rather than in the traditional Microsoft Windows®-based environment You will not lose any of the benefits

of Visual C++, such as custom memory allocation, direct access to the Windows APIs, or efficient manipulation of low-level machine resources

Improved Memory Management

Managed extensions provide access to a garbage-collected memory heap and automatically manage objects allocated from this heap This results in an automatic performance increase for most applications and allows the developer

to focus on more important aspects of the application than the management of pointers and objects

Topic Objective

To introduces the new

features included with Visual

C++ NET

Lead-in

Visual C++ NET is the next

step in the evolution of

Microsoft Visual C++® and

includes two major new

features

Visual C#

Productivity and Safety

Power and Flexibility

*****************************I LLEGAL FOR N ON -T RAINER U SE *****************************

C#, a new OOP language, is included in Visual Studio.NET as Visual C# C# combines the flexibility of Visual C++ with the rapid application development (RAD) features of Visual Basic C# allows developers to quickly build applications for the NET platform C# incorporates productivity, safety, power, and flexibility, thereby making all of these features available from one language

Productivity and Safety

C# has the following features that can be used to enable productivity and safety

Web programming standards

Modern applications require the use of Web standards, such as HTML, Extensible Markup Language (XML) and XML Protocol [XMLP, the new name for Simple Object Access Protocol (SOAP)] C# programmers can use an existing framework for building applications on the NET platform C# includes inbuilt support for turning any component into a Web service

Garbage collection

C# incorporates the garbage collection techniques of Visual C++ managed extensions Garbage collection relieves the programmer of the burden of manual memory management for objects and pointers

Initialized and type-safe variables

Variables in C# are automatically initialized by the environment and are type-safe

Topic Objective

To introduce the key

features in Visual C#

Lead-in

C#, a new OOP language, is

included in Visual

Studio.NET as Visual C#

Power and Flexibility

C# has power and flexibility built into the language and environment

Mapping business process to implementation

A challenge facing most enterprise developers is connecting the abstract business entities with the actual code that they are developing The C# language allows for strongly typed, extensible metadata that can be applied to any object The project architect will typically define this metadata and apply it to the element classes and interfaces The developer can then examine this metadata programmatically

Extensive interoperability

Although C# is a RAD tool, it does includes native support for COM and the Windows-based APIs When required, C# also allows the use of pointers, manually managed memory, and pointer arithmetic

Resources on NET

The NET Server Resources

The NET Development Resources

*****************************I LLEGAL FOR N ON -T RAINER U SE *****************************

This section provides you with links to key locations of interest to developers:

The Microsoft NET Enterprise Server resources

The Microsoft NET development resources The section includes links to Web sites and other resources

The NET Enterprise Server Resources

http://www.microsoft.com/commerceserver

http://www.microsoft.com/biztalk

http://www.microsoft.com/applicationcenter

http://www.microsoft.com/sql

http://www.microsoft.com/exchange

http://www.microsoft.com/isaserver

http://www.microsoft.com/hiserver

*****************************I LLEGAL FOR N ON -T RAINER U SE *****************************

Valuable information about each of the NET Enterprise Servers can be found at the following links

For information about Microsoft Commerce Server 2000, visit http://www.microsoft.com/commerceserver

Use the download links at the Commerce Server Web site to get the latest solution sites and support files for the tutorials that are documented in the Help files

For information about Microsoft BizTalk™ Server 2000, visit http://www.microsoft.com/biztalk

Information about the BizTalk Framework can be found at http://www.biztalk.org

For information about Microsoft Application Center 2000, visit http://www.microsoft.com/applicationcenter

For information about Microsoft SQL Server™ 2000, visit http://www.microsoft.com/sql

For information about Microsoft Exchange 2000 Server, visit http://www.microsoft.com/exchange

For information about Microsoft Internet Security and Acceleration Server

2000, visit http://www.microsoft.com/isaserver

For information about Microsoft Host Integration Server 2000, visit http://www.microsoft.com/hiserver

Additional information for all of the Microsoft products is available through the Microsoft newsgroups at http://msnews.microsoft.com

Note

The NET Development Resources

Resources

http://www.microsoft.com/net

http://msdn.microsoft.com/net

Articles on NET

*****************************I LLEGAL FOR N ON -T RAINER U SE *****************************

Information about developing solutions for the NET Framework is available from Microsoft’s Web site This includes information about ASP.NET, ADO.NET, and the new C# programming language The following Web sites contain much of this information:

http://www.microsoft.com/net/

http://msdn.microsoft.com/net/

The following articles provide further insight into the NET Framework and related technologies

“Microsoft NET: Realizing the Next Generation Internet” at http://www.microsoft.com/business/vision/netwhitepaper.asp

“Microsoft NET Framework FAQ” at http://msdn.microsoft.com/library/techart/faq111700.htm

“The NET Framework and COM” at http://www.microsoft.com/net/developer/framework_com.asp

“XML Web Services and the NET Framework” at http://www.microsoft.com/net/developer/framework_xml.asp

“ADO+ Guides the Evolution of the Data Species” at http://msdn.microsoft.com/library/techart/adoplus.htm ADO+ and ASP+ were the working titles for what are now ADO.NET and ASP.NET

“C# Language Specification” at http://msdn.microsoft.com/vstudio/nextgen/technology/csharpdownload.asp

“C# Introduction and Overview” at http://msdn.microsoft.com/vstudio/nextgen/technology/csharpintro.asp

Tip