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Microsoft ADO .NET Step by Step

by Rebecca M. Riordan

ISBN: 0735612366

Learn to use the ADO.NET model to expand on data-bound Windows and

Web Forms, as well as how XML and ADO.NET intermingle.

Table of Contents

Microsoft ADO.NET Step by Step

Introduction

Part I - Getting Started with ADO.NET

Chapter 1 -

Getting Started with ADO.NET

Part II - Data Providers

Chapter 2 -

Creating Connections

Chapter 3 -

Data Commands and the DataReader

Chapter 4 -

The DataAdapter

Chapter 5 -

Transaction Processing in ADO.NET

Part III - Manipulating Data

Chapter 6 -

The DataSet

Chapter 7 -

The DataTable

Chapter 8 -

The DataView

Part IV - Using the ADO.NET Objects

Chapter 9 -

Editing and Updating Data

Chapter 10

ADO.NET Data-Binding in Windows Forms

Chapter 11

Using ADO.NET in Windows Forms

Chapter 12

Data-Binding in Web Forms

Chapter 13

Using ADO.NET in Web Forms

Part V - ADO.NET and XML

Chapter 14

Using the XML Designer

Chapter 15

Reading and Writing XML

Chapter 16

Using ADO in the .NET Framework

Index

List of Tables

List of Sidebars

Microsoft ADO.NET Step by Step

PUBLISHED BY

Microsoft Press

A Division of Microsoft Corporation

One Microsoft Way

Redmond, Washington 98052-6399

in any form

or by any means without the written permission of the publisher.

Library of Congress Cataloging-in-Publication Data

Riordan, Rebecca.

Microsoft ADO.NET Step by Step / Rebecca M. Riordan.

p. cm.

Includes index.

ISBN 0-7356-1236-6

1. Database design. 2. Object oriented programming (Computer

science) 3. ActiveX. I.

Title.

QA76.9.D26 R56 2002

005.75’85—dc21 2001054641

Printed and bound in the United States of America.

1 2 3 4 5 6 7 8 9 QWE 7 6 5 4 3 2

Distributed in Canada by Penguin Books Canada Limited.

A CIP catalogue record for this book is available from the British Library.

Microsoft Press books are available through booksellers and distributors worldwide. For

further information about international editions, contact your local Microsoft Corporation

office or contact Microsoft Press International directly at fax (425) 936-7329. Visit our

Web site at www.microsoft.com/mspress. Send comments to mspinput@microsoft.com.

ActiveX, IntelliSense, Internet Explorer, Microsoft, Microsoft Press, the .NET logo, Visual

Basic, Visual C#, and Visual Studio are either registered trademarks or trademarks of

Microsoft Corporation in the United States and/or other countries. Other product and

company names mentioned herein may be the trademarks of their respective owners.

The example companies, organizations, products, domain names, e-mail addresses,

logos, people, places, and events depicted herein are fictitious. No association with any

real company, organization, product, domain name, e-mail address, logo, person, place,

or event is intended or should be inferred.

Acquisitions Editor: Danielle Bird

Project Editor: Rebecca McKay

Body Part No. X08-05018

To my very dear friend, Stephen Jeffries

About the Author

Rebecca M. Riordan

With almost 20 years’ experience in software design, Rebecca M. Riordan has earned

an international reputation as an analyst, systems architect, and designer of database

and work -support systems.

She works as an independent consultant, providing systems design and consulting

expertise to an international client base. In 1998, she was awarded MVP status by

Microsoft in recognition of her work in Internet newsgroups. Microsoft ADO.NET Step by

Step is her third book for Microsoft Press.

Rebecca currently resides in New Mexico. She can be reached at

rebeccar@attglobal.net.

Introduction

Overview

ADO.NET is the data access component of Microsoft’s new .NET Framework. Microsoft

bills ADO.NET as “an evolutionary improvement” over previous versions of ADO, a claim

that has been hotly debated since its announcement. It is certainly true that the

ADO.NET object model bears very little relationship to earlier versions of ADO.

In fact, whether you decide to love it or hate it, one fact about the .NET Framework

seems undeniable: it levels the playing ground. Whether you’ve been at this computer

game longer than you care to talk about or you’re still sorting out your heaps and stacks,

learning the .NET Framework will require a major investment. We’re all beginners now.

So welcome to Microsoft ADO.NET Step by Step. Through the exercises in this book, I

will introduce you to the ADO.NET object model, and you’ll learn how to use that model

in developing data-bound Windows Forms and Web Forms. In later topics, we’ll look at

how ADO.NET interacts with XML and how to access older versions of ADO from the

.NET environment.

Since we’re all beginners, an exhaustive treatment would be, well, exhausting, so this

book is necessarily limited in scope. My goal is to provide you with an understanding of

the ADO.NET objects—what they are and how they work together. So fair warning: this

book will not make you an expert in ADO.NET. (How I wish it were that simple!)

What this book will give you is a road map, a fundamental understanding of the

environment, from which you will be able to build expertise. You’ll know what you need to

do to start building data applications. The rest will come with time and experience. This

book is a place to start.

Although I’ve pointed out language differences where they might be confusing, in order

to keep the book within manageable proportions I’ve assumed that you are already

familiar with Visual Basic .NET or Visual C# .NET. If you’re completely new to the .NET

environment, you might want to start with Microsoft Visual Basic .NET Step by Step by

Michael Halvorson (Microsoft Press, 2002) or Microsoft Visual C# .NET Step by Step by

John Sharp and Jon Jagger (Microsoft Press, 2002), depending on your language of

choice.

The exercises that include programming are provided in both Microsoft Visual Basic and

Microsoft C#. The two versions are identical (except for the difference between the

languages), so simply choose the exercise in the language of your choice and skip the

other version.

Conventions and Features in This Book

You’ll save time by understanding, before you start the lessons, how this book displays

instructions, keys to press, and so on. In addition, the book provides helpful features that

you might want to use.

§ Numbered lists of steps (1, 2, and so on) indicate hands-on exercises. A

rounded bullet indicates an exercise that has only one step.

§ Text that you are to type appears in bold.

§ Terms are displayed in italic the first time they are defined.

§ A plus sign (+) between two key names means that you must press those

keys at the same time. For example, “Press Alt+Tab” means that you hold down

the Alt key while you press Tab.

§ Notes labeled “tip” provide additional information or alternative methods for a

step.

§ Notes labeled “important” alert you to essential information that you should

check before continuing with the lesson.

§ Notes labeled “ADO” point out similarities and differences between ADO and

ADO.NET.

§ Notes labeled “Roadmap” refer to places where topics are discussed in depth.

§ You can learn special techniques, background information, or features related

to the information being discussed by reading the shaded sidebars that appear

throughout the lessons. These sidebars often highlight difficult terminology or

suggest future areas for exploration.

§ You can get a quick reminder of how to perform the tasks you learned by

reading the Quick Reference at the end of a lesson.

Using the ADO.NET Step by Step CD-ROM

The Microsoft ADO.NET Step by Step CD-ROM inside the back cover contains practice

files that you'll use as you complete the exercises in the book. By using the files, you

won't need to waste time creating databases and entering sample data. Instead, you can

concentrate on how to use ADO.NET. With the files and the step-by-step instructions in

the lessons, you'll also learn by doing, which is an easy and effective way to acquire and

remember new skills.

System Requirements

In order to complete the exercises in this book, you will need the following software:

§ Microsoft Windows 2000 or Microsoft Windows XP

§ Microsoft Visual Studio .NET

§ Microsoft SQL Server Desktop Engine (included with Visual Studio .NET)

or Microsoft SQL Server 2000

This book and practice files were tested primarily using Windows 2000 and Visual Studio

.NET Professional; however, other editions of Visual Studio .NET, such as Visual Basic

.NET Standard and Visual C# .NET Standard, should also work.

Since Windows XP Home Edition does not include Internet Information Services (IIS),

you won't be able to create local ASP.NET Web applications (discussed in chapters 12

and 13) using Windows XP Home Edition. Windows 2000 and Windows XP Professional

do include IIS.

Installing the Practice Files

Follow these steps to install the practice files on your computer so that you can use them

with the exercises in this book.

1. Insert the CD in your CD-ROM drive.

A Start menu should appear automatically. If this menu does not appear,

double-click StartCD.exe at the root of the CD.

2. Click the Getting Started option.

3. Follow the instructions in the Getting Started document to install the

practice files and setup SQL Server 2000 or the Microsoft SQL Server

Desktop Engine (MSDE).

Using the Practice Files

The practice files contain the projects and completed solutions for the ADO.NET Step by

Step book. Folders marked 'Finish' contain working solutions. Folders marked 'Start'

contain the files needed to perform the exercises in the book.

Uninstalling the Practice Files

Follow these steps to remove the practice files from your computer.

1. Insert the CD in your CD-ROM drive.

A Start menu should appear automatically. If this menu does not appear,

double-click StartCD.exe at the root of the CD.

2. Click the Uninstall Practice Files option.

3. Follow the steps in the Uninstall Practice Files document to remove

the practice files.

Need Help with the Practice Files?

Every effort has been made to ensure the accuracy of the book and the contents of this

CD-ROM. As corrections or changes are collected for this book, they will be placed on a

Web page and any errata will also be integrated into the Microsoft online Help tool

known as the Knowledge Base. To view the list of known corrections for this book, visit

the following page:

http://support.microsoft.com/support/misc/kblookup.asp?id=Q314759

To search the Knowledge Base and review your support options for the book or CD-

ROM, visit the Microsoft Press Support site:

http://www.microsoft.com/mspress/support/

If you have comments, questions, or ideas regarding the book or this CD-ROM, or

questions that are not answered by searching the Knowledge Base, please send them to

Microsoft Press via e-mail to:

mspinput@microsoft.com

or by postal mail to:

Microsoft Press

Attn: Microsoft ADO.NET Step by Step Editor

One Microsoft Way

Redmond, WA 98052-6399

Please note that product support is not offered through the above addresses.

Part I: Getting Started with ADO.NET

Chapter List

Chapter 1: Getting Started with ADO.NET

Overview

In this chapter, you'll learn how to:

§ Identify the primary objects that make up Microsoft ADO.NET are and how

they interact

§ Create Connection and DataAdapter objects by using the DataAdapter

Configuration Wizard

§ Automatically generate a DataSet

§ Bind control properties to a DataSet

§ Load data into a DataSet at run time

Like other components of the .NET Framework, ADO.NET consists of a set of objects

that interact to provide the required functionality. Unfortunately, this can make learning to

use the object model frustrating—you feel like you need to learn all of it before you can

understand any of it.

The solution to this problem is to start by building a conceptual framework. In other

words, before you try to learn the details of how any particular object functions, you need

to have a general understanding of what each object does and how the objects interact.

That's what we'll do in this chapter. We'll start by looking at the main ADO.NET objects

and how they work together to get data from a physical data store, to the user, and back

again. Then, just to whet your appetite, we'll work through building a set of objects and

binding them to a simple data form.

On the Fundamental Interconnectedness of All Things

In later chapters in this section, we’ll examine each object in the ADO.NET object model

in turn. At least in theory. In reality, because the objects are so closely interlinked, it’s

impossible to look at any single object in isolation.

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2013-01-08

英文版无语

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