Home > Articles > Programming > C#

  • Print
  • + Share This

Copyright

Presenting C#

Copyright © 2000 by Sams Publishing

All rights reserved. No part of this book shall be reproduced, stored in aretrieval system, or transmitted by any means, electronic, mechanical,photocopying, recording, or otherwise, without written permission from thepublisher. No patent liability is assumed with respect to the use of theinformation contained herein. Although every precaution has been taken in thepreparation of this book, the publisher and author assume no responsibility forerrors or omissions. Nor is any liability assumed for damages resulting from theuse of the information contained herein.

International Standard BookNumber: 0-672-32037-1

Library of Congress Catalog Card Number:00-105188

Printed in the United States of America

First Printing:July 2000

02 01 00 4 3 2 1

Trademarks

All terms mentioned in this book that are known to be trademarks or servicemarks have been appropriately capitalized. Sams Publishing cannot attest to theaccuracy of this information. Use of a term in this book should not be regardedas affecting the validity of any trademark or service mark.

Warning and Disclaimer

Every effort has been made to make this book as complete and as accurate aspossible, but no warranty or fitness is implied. The information provided is onan "as is" basis. The author and the publisher shall have neitherliability nor responsibility to any person or entity with respect to any loss ordamages arising from the information contained in this book.

Introduction

Welcome to Presenting C#. This book is your ticket to quickly getting up to speed with the enterprise programming language that ships with the Common Language Runtime (CLR): C# (pronounced C sharp).

The Next Generation Windows Services Runtime is a runtime environment that not only manages the execution of code, but also provides services that make programming easier. Compilers produce managed code to target this managed execution environment. You get cross-language integration, cross-language exception handling, enhanced security, versioning and deployment support, and debugging and profiling services for free.

The premier language for the CLR is C#. Much of the supporting .NET framework is written in C#; therefore, its compiler can be considered the most tested and optimized compiler of those shipping with the CLR. The C# language borrows power from C++, but with modernization and the addition of type safety--making C# the number one choice for enterprise solutions.

Who Should Read This Book?

If you are new to programming, this book is not for you. This book is intended to get programmers off and running with C#, based on knowledge that they already have. Presenting C# is targeted at programmers who already have programming experience in, for example, C or C++, Visual Basic, Java, or another language.

The transition to C# is easiest when you have a background in C++; however, if you are fluent in a different language, this book will bring you up to date, too. The book is more fun if you have a little knowledge of COM programming, but COM programming is in no way mandatory.

How This Book Is Organized

The book is organized into twelve chapters. Here is a quick rundown on what is presented in each chapter:

  • Chapter 1, "Introduction to C#"—You are taken on a tour of C#, and this chapter answers questions about why you should consider learning C#.
  • Chapter 2, "The Underpinnings—The CLR"—You are introduced to how the Common Language Runtime (CLR) provides the infrastructure for your C# code to run.
  • Chapter 3, "Your First C# Application"—You create your very first C# application and (how could it be otherwise?) it is a "Hello World" application.
  • Chapter 4, "C# Types"—You discover the various types that you can use in your C# applications. You explore the differences between value types and reference types, and how boxing and unboxing works.
  • Chapter 5, "Classes"—You tap the real power of C#, which is object-oriented programming with classes. You learn a great deal about constructors, destructors, methods, properties, indexers, and events.
  • Chapter 6, "Control Statements"—You take over the control of flow in your application. You explore the various selection and iteration statements provided by C#.
  • Chapter 7, "Exception Handling"—You acquire the skills to write applications that are good citizens in the world of the CLR, by implementing proper exception handling.
  • Chapter 8, "Writing Components in C#"—You build a component in C# that can be used by clients across languages because you leverage the CLR.
  • Chapter 9, "Configuration and Deployment"—You learn how conditional compilation works in C#, as well as how to automatically generate documentation from your C# source code. Additionally, this chapter introduces the versioning technology of .NET.
  • Chapter 10, "Interoperating with Unmanaged Code"—You discover how you can use unmanaged code from inside C#, and how unmanaged code can interoperate with your C# components.
  • Chapter 11, "Debugging C# Code"—You acquire the skills to use the debugging tools provided in the SDK to pinpoint and fix bugs in your C# applications.
  • Chapter 12, "Security"—You explore the security concepts of the CLR. You learn about code-access security and role-based security.

What You Will Need to Use This Book

From the book's point of view, all you need is the .NET Software Development Kit (SDK). Although all you need at a minimum are the Common Language Runtime (CLR) and the C# compiler, having a machine loaded with the documentation and all the SDK's tools (including its debugger) is definitely a good idea when exploring the capabilities of this exciting new technology.

This book does not require you to have any of the Visual Studio 7 tools installed on your machine. My only recommendation is that you should have a decent programmer's editor that supports line numbering for editing C# source files.

Acknowledgements

What would you expect when you receive an email from an executive editor, mentioning that he wants to talk with you about an exciting book project? I didn't quite expect this book when Chris Webb called me. Chris's offer was way too exciting to turn down—writing a book about a new programming language.

Thanks to both Chris Webb and Brad Jones (the associate publisher) for putting their trust in me and my tight writing schedule. Both of them—as well as the development editor, Kevin Howard—had to put up with my changes to the table of contents as the book progressed. You just can't kill old habits.

Special thanks to Christian Koller for reviewing my chapters and telling me when I once again left out details that non-C++ programmers would need for better understanding. Although I don't know everyone who was involved in this book project at Sams Publishing, I thank them all for bringing it to the shelves--especially within this tight schedule!

Finally, and of course most importantly, I want to thank my family for their continual support throughout all my book projects.

About the Author

Christoph Wille, MCSE, MCSD, CNA, and MCP-IT, works as a network consultant and programmer, and specializes in Windows DNA. He is recognized by Microsoft as a Most Valuable Professional (MVP) for Active Server Pages, and was one of only a handful of developers working with Microsoft on early versions of the C# language.

Christoph has authored or contributed to several books, including Sams Teach Yourself ADO 2.5 in 21 Days, Sams Teach Yourself Active Server Pages in 24 Hours, MCSE Training Guide: SQL Server 7 Administration, and Sams Teach Yourself MCSE TCP/IP in 14 Days.

  • + Share This
  • 🔖 Save To Your Account

InformIT Promotional Mailings & Special Offers

I would like to receive exclusive offers and hear about products from InformIT and its family of brands. I can unsubscribe at any time.

Overview


Pearson Education, Inc., 221 River Street, Hoboken, New Jersey 07030, (Pearson) presents this site to provide information about products and services that can be purchased through this site.

This privacy notice provides an overview of our commitment to privacy and describes how we collect, protect, use and share personal information collected through this site. Please note that other Pearson websites and online products and services have their own separate privacy policies.

Collection and Use of Information


To conduct business and deliver products and services, Pearson collects and uses personal information in several ways in connection with this site, including:

Questions and Inquiries

For inquiries and questions, we collect the inquiry or question, together with name, contact details (email address, phone number and mailing address) and any other additional information voluntarily submitted to us through a Contact Us form or an email. We use this information to address the inquiry and respond to the question.

Online Store

For orders and purchases placed through our online store on this site, we collect order details, name, institution name and address (if applicable), email address, phone number, shipping and billing addresses, credit/debit card information, shipping options and any instructions. We use this information to complete transactions, fulfill orders, communicate with individuals placing orders or visiting the online store, and for related purposes.

Surveys

Pearson may offer opportunities to provide feedback or participate in surveys, including surveys evaluating Pearson products, services or sites. Participation is voluntary. Pearson collects information requested in the survey questions and uses the information to evaluate, support, maintain and improve products, services or sites, develop new products and services, conduct educational research and for other purposes specified in the survey.

Contests and Drawings

Occasionally, we may sponsor a contest or drawing. Participation is optional. Pearson collects name, contact information and other information specified on the entry form for the contest or drawing to conduct the contest or drawing. Pearson may collect additional personal information from the winners of a contest or drawing in order to award the prize and for tax reporting purposes, as required by law.

Newsletters

If you have elected to receive email newsletters or promotional mailings and special offers but want to unsubscribe, simply email information@informit.com.

Service Announcements

On rare occasions it is necessary to send out a strictly service related announcement. For instance, if our service is temporarily suspended for maintenance we might send users an email. Generally, users may not opt-out of these communications, though they can deactivate their account information. However, these communications are not promotional in nature.

Customer Service

We communicate with users on a regular basis to provide requested services and in regard to issues relating to their account we reply via email or phone in accordance with the users' wishes when a user submits their information through our Contact Us form.

Other Collection and Use of Information


Application and System Logs

Pearson automatically collects log data to help ensure the delivery, availability and security of this site. Log data may include technical information about how a user or visitor connected to this site, such as browser type, type of computer/device, operating system, internet service provider and IP address. We use this information for support purposes and to monitor the health of the site, identify problems, improve service, detect unauthorized access and fraudulent activity, prevent and respond to security incidents and appropriately scale computing resources.

Web Analytics

Pearson may use third party web trend analytical services, including Google Analytics, to collect visitor information, such as IP addresses, browser types, referring pages, pages visited and time spent on a particular site. While these analytical services collect and report information on an anonymous basis, they may use cookies to gather web trend information. The information gathered may enable Pearson (but not the third party web trend services) to link information with application and system log data. Pearson uses this information for system administration and to identify problems, improve service, detect unauthorized access and fraudulent activity, prevent and respond to security incidents, appropriately scale computing resources and otherwise support and deliver this site and its services.

Cookies and Related Technologies

This site uses cookies and similar technologies to personalize content, measure traffic patterns, control security, track use and access of information on this site, and provide interest-based messages and advertising. Users can manage and block the use of cookies through their browser. Disabling or blocking certain cookies may limit the functionality of this site.

Do Not Track

This site currently does not respond to Do Not Track signals.

Security


Pearson uses appropriate physical, administrative and technical security measures to protect personal information from unauthorized access, use and disclosure.

Children


This site is not directed to children under the age of 13.

Marketing


Pearson may send or direct marketing communications to users, provided that

  • Pearson will not use personal information collected or processed as a K-12 school service provider for the purpose of directed or targeted advertising.
  • Such marketing is consistent with applicable law and Pearson's legal obligations.
  • Pearson will not knowingly direct or send marketing communications to an individual who has expressed a preference not to receive marketing.
  • Where required by applicable law, express or implied consent to marketing exists and has not been withdrawn.

Pearson may provide personal information to a third party service provider on a restricted basis to provide marketing solely on behalf of Pearson or an affiliate or customer for whom Pearson is a service provider. Marketing preferences may be changed at any time.

Correcting/Updating Personal Information


If a user's personally identifiable information changes (such as your postal address or email address), we provide a way to correct or update that user's personal data provided to us. This can be done on the Account page. If a user no longer desires our service and desires to delete his or her account, please contact us at customer-service@informit.com and we will process the deletion of a user's account.

Choice/Opt-out


Users can always make an informed choice as to whether they should proceed with certain services offered by InformIT. If you choose to remove yourself from our mailing list(s) simply visit the following page and uncheck any communication you no longer want to receive: www.informit.com/u.aspx.

Sale of Personal Information


Pearson does not rent or sell personal information in exchange for any payment of money.

While Pearson does not sell personal information, as defined in Nevada law, Nevada residents may email a request for no sale of their personal information to NevadaDesignatedRequest@pearson.com.

Supplemental Privacy Statement for California Residents


California residents should read our Supplemental privacy statement for California residents in conjunction with this Privacy Notice. The Supplemental privacy statement for California residents explains Pearson's commitment to comply with California law and applies to personal information of California residents collected in connection with this site and the Services.

Sharing and Disclosure


Pearson may disclose personal information, as follows:

  • As required by law.
  • With the consent of the individual (or their parent, if the individual is a minor)
  • In response to a subpoena, court order or legal process, to the extent permitted or required by law
  • To protect the security and safety of individuals, data, assets and systems, consistent with applicable law
  • In connection the sale, joint venture or other transfer of some or all of its company or assets, subject to the provisions of this Privacy Notice
  • To investigate or address actual or suspected fraud or other illegal activities
  • To exercise its legal rights, including enforcement of the Terms of Use for this site or another contract
  • To affiliated Pearson companies and other companies and organizations who perform work for Pearson and are obligated to protect the privacy of personal information consistent with this Privacy Notice
  • To a school, organization, company or government agency, where Pearson collects or processes the personal information in a school setting or on behalf of such organization, company or government agency.

Links


This web site contains links to other sites. Please be aware that we are not responsible for the privacy practices of such other sites. We encourage our users to be aware when they leave our site and to read the privacy statements of each and every web site that collects Personal Information. This privacy statement applies solely to information collected by this web site.

Requests and Contact


Please contact us about this Privacy Notice or if you have any requests or questions relating to the privacy of your personal information.

Changes to this Privacy Notice


We may revise this Privacy Notice through an updated posting. We will identify the effective date of the revision in the posting. Often, updates are made to provide greater clarity or to comply with changes in regulatory requirements. If the updates involve material changes to the collection, protection, use or disclosure of Personal Information, Pearson will provide notice of the change through a conspicuous notice on this site or other appropriate way. Continued use of the site after the effective date of a posted revision evidences acceptance. Please contact us if you have questions or concerns about the Privacy Notice or any objection to any revisions.

Last Update: November 17, 2020