a0013 beginning object oriented programming with vb 200 morebook vn 3748

5769chFM.qxd 10/13/05 4:21 PM Page i Beginning Object-Oriented Programming with VB 2005 From Novice to Professional Daniel R Clark 5769chFM.qxd 10/13/05 4:21 PM Page ii Beginning Object-Oriented Programming with VB 2005: From Novice to Professional Copyright © 2006 by Daniel R Clark All rights reserved No part of this work may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or by any information storage or retrieval system, without the prior written permission of the copyright owner and the publisher ISBN (pbk): 1-59059-576-9 Printed and bound in the United States of America Trademarked names may appear in this book Rather than use a trademark symbol with every occurrence of a trademarked name, we use the names only in an editorial fashion and to the benefit of the trademark owner, with no intention of infringement of the trademark Lead Editor: Jonathan Hassell Technical Reviewer: Jon Box Editorial Board: Steve Anglin, Dan Appleman, Ewan Buckingham, Gary Cornell, Tony Davis, Jason Gilmore, Jonathan Hassell, Chris Mills, Dominic Shakeshaft, Jim Sumser Project Manager: Beth Christmas Copy Edit Manager: Nicole LeClerc Copy Editors: Marilyn Smith and Ami Knox Assistant Production Director: Kari Brooks-Copony Production Editor: Janet Vail Compositor: Kinetic Publishing Services, LLC Proofreader: Christy Wagner Indexer: Rebecca Plunkett Artist: Kinetic Publishing Services, LLC Cover Designer: Kurt Krames Manufacturing Director: Tom Debolski Distributed to the book trade worldwide by Springer-Verlag New York, Inc., 233 Spring Street, 6th Floor, New York, NY 10013 Phone 1-800-SPRINGER, fax 201-348-4505, e-mail orders-ny@springer-sbm.com, or visit http://www.springeronline.com For information on translations, please contact Apress directly at 2560 Ninth Street, Suite 219, Berkeley, CA 94710 Phone 510-549-5930, fax 510-549-5939, e-mail info@apress.com, or visit http://www.apress.com The information in this book is distributed on an “as is” basis, without warranty Although every precaution has been taken in the preparation of this work, neither the author(s) nor Apress shall have any liability to any person or entity with respect to any loss or damage caused or alleged to be caused directly or indirectly by the information contained in this work The source code for this book is available to readers at http://www.apress.com in the Source Code section 5769chFM.qxd 10/13/05 4:21 PM Page iii Contents at a Glance About the Author xiii About the Technical Reviewer xv Introduction xvii PART ■CHAPTER ■CHAPTER ■CHAPTER ■CHAPTER PART ■CHAPTER ■CHAPTER ■CHAPTER ■CHAPTER ■CHAPTER PART ■■■ Overview of Object-Oriented Programming Designing OOP Solutions: Identifying the Class Structure 11 Designing OOP Solutions: Modeling theObject Interaction 31 Designing OOP Solutions: A Case Study 63 ■■■ Object-Oriented Programming and Design Fundamentals Object-Oriented Programming with Visual Basic Introducing Visual Basic and the NET Framework 85 Creating Classes 109 Creating Class Hierarchies 123 Implementing Object Collaboration 147 Working with Collections 173 ■■■ Developing Applications with Visual Basic ■CHAPTER 10 OSO Application Revisited: Implementing the Business Logic 201 ■CHAPTER 11 Developing Windows Applications 237 ■CHAPTER 12 Developing Web Applications 275 iii 5769chFM.qxd 10/13/05 4:21 PM Page iv ■CHAPTER 13 Developing and Consuming Web Services 311 ■CHAPTER 14 Wrapping Up and Reviewing 325 PART ■■■ ■APPENDIX A ■APPENDIX B ■APPENDIX C Appendixes Fundamental Programming Concepts 331 Exception Handling in VB 347 Installing the Sample Databases 351 ■INDEX 355 iv 5769chIDX.qxd 10/13/05 4:26 PM Page 367 ■INDEX use cases, 14–21 actors in, 14 creating OSO, 65–66 defined, 12 developing from SRS, 14, 17–18 diagramming, 17–21 diagramming OSO application, 66–68 illustrated, 14, 15, 16, 29 inclusion, 16 modeling class behaviors for OSO application, 73–77 user groups, 327 ■V validating employees, 232, 269–270, 305–306 variables, 331 block-level scope of, 336 module scope of, 337 procedure scope of, 337 View Supply Catalog scenario, 76 views in Solution Explorer, 94–98 Visual Basic NET See also fundamental programming concepts; object collaboration defining classes, 110–114 delegated methods, 156–158 derived class in, 124 developing programming skills, 325–327 history of, 8–9 inheritance, 7, 123–129 issuing event messages in, 150 method definitions in, 148 origins of, 8–9 polymorphism, 7, 123, 140–145 procedures, 344–345 support for generic-based collections, 193 Visual Studio building and executing assemblies, 102 creating base and derived classes, 126–127 debugging in, 103–107 defining classes, 113–114 designing forms in, 100–101 exploring Toolbox, 99–101 form designer in, 240–243 IDE in, 92–93 new projects in, 94 shared methods in, 164–166 Solution Explorer views, 94–98 verifying database installation with, 352–354 Web Page Designer, 279–281 ■W warning dialog box, 288 Watch window (Visual Studio), 106 Web Forms about, 275–277 adding page and server control event handlers, 281–283 code-behind files, 276–277 creating OSO Web-based interface, 303–310 displaying OSO products, 303–304 enabling debugging for Web files, 287–288 inheritance for web pages and Web server controls, 277–279 initiating OSO Web orders, 304–305 OSO order items added to, 306–308 placing orders on OSO, 309 removing items from OSO, 308–309 server-side event processing, 283–284 similarity to Windows Forms interfaces, 275 testing OSO Web GUI, 309–310 using Web server controls, 277 validating OSO employees at login, 269–270, 305–306 Web Page Designer (Visual Studio) Toolbox for, 286 using, 279–281 web pages inheritance hierarchy of, 277–279 interface and programming logic of, 275–277 web references for web services, 320, 322 Web server controls, 277–279 web services See also consuming web services about, 311–312, 323 adding web references, 320, 322 browsing for, 320 consuming, 319–323 creating, 313–319 processes in, 312–313 WebControl class, 279 While statements, 342–343 Windows Forms adding dialog box to close application, 258–259 creating inherited forms, 257–258 data binding, 260–266 dialog box vs normal, 252 event-driven model of, 243 inheritance hierarchy for form classes, 238–239 similarity to Web Forms interfaces, 275 types of controls on, 238 working with, 237–238 Withdraw method testing, 128–129, 134, 135–136 using MyBase qualifier with, 135 367 5769chIDX.qxd 368 10/13/05 4:26 PM Page 368 ■INDEX WithEvents declaration, 152–153 WithEvents keyword, 150 WSDL files, 315, 316 ■X XML (Extensible Markup Language) about ADO.NET and, 88–89 ADO.NET and data structure of, 88–89, 203 NET Framework support for standards, 86, 203 persisting DataSet objects to XML file, 220 serializing/deserializing NET data types, 149 ... Page i Beginning Object- Oriented Programming with VB 2005 From Novice to Professional Daniel R Clark 5769chFM.qxd 10/13/05 4:21 PM Page ii Beginning Object- Oriented Programming with VB 2005 : From... Solutions: A Case Study 63 ■■■ Object- Oriented Programming and Design Fundamentals Object- Oriented Programming with Visual Basic Introducing Visual Basic and the NET Framework... working with, 237–238 Withdraw method testing, 128–129, 134, 135–136 using MyBase qualifier with, 135 367 5769chIDX.qxd 368 10/13/05 4:26 PM Page 368 ■INDEX WithEvents declaration, 152–153 WithEvents