Depending on the edition of Visual Studio you are using, some of the steps illustrated in this book may not appear exactly the same on your screen. However, the differences are minor, and you should not have any problem in following the steps outlines in each chapter.

In addition, readers using Windows Vista should launch Visual Studio 2008 (as well as the Command Prompt window) in Administrator mode. To do so:

□ Click on Vista Start button.

□ Locate the program you want to launch (Visual Studio 2008, or Command Prompt).

□ Right-click on the program and select Run as Administrator.

Conventions

A number of conventions are used throughout the book to help you get the most from the text and keep track of what's happening.

Boxes like this one hold important, not-to-be forgotten information that is directly relevant to the surrounding text.

Tips, hints, tricks, and asides to the current discussion are offset and placed in italics like this.

As for styles in the text:

□ New terms and important words are highlighted introduced.

□ Keyboard strokes look like this: Ctrl+A.

□ Filenames, URLs, and code within the text looks like this: persistence.properties.

□ Code is presented in two different ways:

Code examples nearly always look like this.

Gray highlighting is used to show where new code is added to existing code, or to point out a specific section of code that's being explained in the text.

Source Code

As you work through the examples in this book, you may choose either to type in all the code manually or to use the source code files that accompany the book. All of the source code used in this book is available for download at www.wrox.com. Once at the site, simply locate the book's title (either by using the Search box or by using one of the title lists), and click the Download Code link on the book's detail page to obtain all the source code for the book.

Because many books have similar titles, you may find it easiest to search by ISBN; this book's ISBN is 978-0 -470-28581-7.

Once you download the code, just decompress it with your favorite compression tool. Alternatively, you can go to the main Wrox code download page at www.wrox.com/dynamic/books/download.aspx to see the code available for this book and all other Wrox books.

Errata

Every effort is made to ensure that there are no errors in the text or in the code. However, no one is perfect, and mistakes do occur. If you find an error such as a spelling mistake or faulty piece of code in one of our books, we would be grateful for your feedback. By sending in errata, you may save another reader hours of frustration, and at the same time you will be helping us provide even higher-quality information.

To find the errata page for this book, go to www.wrox.com and locate the title using the Search box or one of the title lists. Then, on the book details page, click the Book Errata link. On this page, you can view all errata that has been submitted for this book and posted by Wrox editors. A complete book list including links to each book's errata is also available at www.wrox.com/misc-pages/booklist.shtml.

If you don't spot 'your' error on the Book Errata page, go to www.wrox.com/contact/techsupport.shtml, and complete the form there to send us the error you have found. We'll check the information and, if appropriate, post a message to the book's errata page and fix the problem in subsequent editions of the book.

p2p.wrox.com

For author and peer discussion, join the P2P forums at p2p.wrox.com. The forums are a web-based system for you to post messages relating to Wrox books and related technologies and interact with other readers and technology users. The forums offer a subscription feature to email you topics of interest of your choosing when new posts are made to the forums. Wrox authors, editors, other industry experts, and your fellow readers are present on these forums.

At http://p2p.wrox.com, you will find a number of different forums that will help you not only as you read this book but also as you develop your own applications. To join the forums, just follow these steps:

1. Go to p2p.wrox.com, and click the Register link.

2. Read the terms of use, and click Agree.

3. Complete the required information to join as well as any optional information you wish to provide, and click Submit.

4. You will receive an email with information describing how to verify your account and complete the joining process.

You can read messages in the forums without joining P2P but to post your own messages, you must join.

Once you join, you can post new messages and respond to messages other users post. You can read messages at any time on the web. If you would like to have new messages from a particular forum emailed to you, click the Subscribe to this Forum icon by the forum name in the forum listing.

For more information about how to use the Wrox P2P, be sure to read the P2P FAQs for answers to questions about how the forum software works as well as many common questions specific to P2P and Wrox books. To read the FAQs, click the FAQ link on any P2P page.

Part I

C# Fundamentals 

Chapter 1

The .NET Framework

The .NET Framework is a development framework created by Microsoft to enable developers to build applications that run on Microsoft (and other) platforms. Understanding the basics of the .NET Framework is essential because a large part of C# development revolves around using the classes in that framework.

This chapter explains the key components in the .NET Framework as well as the role played by each of the components. In addition, it examines the relationships among the various versions of the Framework, from version 1.0 to the latest 3.5.

What's the .NET Framework?

Вы читаете C# 2008 Programmer's Reference
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