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STARTING OUT WITHVisual Basic Eighth EditionA01 GADD4658 08 SE FM.indd 104/01/19 7:22 PM

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STARTING OUT WITHVisual Basic Eighth EditionTony GaddisHaywood Community CollegeKip IrvineFlorida International UniversityA01 GADD4658 08 SE FM.indd 304/01/19 7:22 PM

Senior Vice President Courseware Portfolio Management:Marcia HortonVice President, Portfolio Management: Engineering,Computer Science & Global Editions: Julian PartridgeExecutive Portfolio Manager: Matt GoldsteinPortfolio Management Assistant: Meghan JacobyProduct Marketing Manager: Yvonne VannattaField Marketing Manager: Demetrius HallMarketing Assistant: Jon BryantManaging Producer: Scott DisannoContent Producer: Amanda BrandsManufacturing Buyer, Higher Ed, Lake SideCommunications, Inc. (LSC): Maura Zaldivar-GarciaCover Designer: Pearson CSCManager, Rights and Permissions: Ben FerriniCover Image: matin/shutterstockInventory Manager: Bruce BoundyFull-Service Project Manager: Abhishan Sharma,Integra Software Services Pvt. Ltd.Composition: Integra Software Services Pvt. Ltd.Printer/Binder: Lake Side Communications, Inc.Credits and acknowledgments borrowed from other sources and reproduced, with permission, in this textbook appear on theCredits page at the end of the text.Copyright 2020, 2017, 2014, 2011 Pearson Education, Inc., Hoboken, NJ 07030. All rights reserved. Printed in the UnitedStates of America. This publication is protected by Copyright, and permission should be obtained from the publisher prior toany prohibited reproduction, storage in a retrieval system, or transmission in any form or by any means, electronic, mechanical,photocopying, recording, or likewise. For information regarding permissions, request forms and the appropriate contacts withinthe Pearson Education Global Rights & Permissions department, please visit www.pearsoned.com/permissions/.Many of the designations by manufacturers and sellers to distinguish their products are claimed as trademarks. Where thosedesignations appear in this book, and the publisher was aware of a trademark claim, the designations have been printed ininitial caps or all caps.The programs and applications presented in this book have been included for their instructional value. They have been testedwith care, but are not guaranteed for any particular purpose. The publisher does not offer any warranties or representations,nor does it accept any liabilities with respect to the programs or applications.microsoft and/or its respective suppliers make no representations about the suitability of the informationcontained in the documents and related graphics published as part of the services for any purpose. all suchdocuments and related graphics are provided “as is” without warranty of any kind. microsoft and/or itsrespective suppliers hereby disclaim all warranties and conditions with regard to this information, includingall warranties and conditions of merchantability. whether express, implied or statutory, fitness for aparticular. purpose, title and non-infringement. in no event shall microsoft and/or its respective suppliers beliable for any special, indirect or c onsequential damages or any damages whatsoever resulting from loss ofuse, data or profits, whether in an action of contract. negligence or other tortious action, arising out of orin c onnection with the use or performance of information available from the services.the documents and related graphics contained herein could include technical inaccuracies or typographicalerrors changes are periodically added to the information herein. microsoft and/or its respective suppliers maymake improvements and/or changes in the product(s) and/or the program(s) described herein at any time partialscreen shots may be viewed in full within the software version specified.microsoft windows , and microsoft office are registered trademarks of the microsoft corporation in theu.s.a and other countries. this book is not sponsored or endorsed by or affiliated with the microsoftcorporation.Library of Congress Cataloging-in-Publication DataNames: Gaddis, Tony, author. Irvine, Kip R., author.Title: Starting out with visual basic / Tony Gaddis, Haywood CommunityCollege, Kip Irvine, Florida International University.Description: Eighth edition. Hoboken : Pearson, [2020] Includesbibliographical references and index.Identifiers: LCCN 2018048219 ISBN 9780135204658 ISBN 0135204658Subjects: LCSH: Visual Basic (Computer program language)Classification: LCC QA76.73.M53 G33 2019 DDC 005.26/8—dc23 LC record available athttps://lccn.loc.gov/201804821910 9 8 7 6 5 4 3 2 1ISBN 10:     0-13-520465-8ISBN 13: 978-0-13-520465-8A01 GADD4658 08 SE FM.indd 404/01/19 7:22 PM

Contents in BriefPrefaceChapter 1Introduction to Programming and Visual BasicChapter 2Creating Applications with Visual BasicChapter 3Variables and Calculations125Chapter 4Making Decisions233Chapter 5Lists and Loops309Chapter 6Procedures and Functions379Chapter 7Multiple Forms, Modules, and Menus429Chapter 8Arrays and More499Chapter 9Files, Printing, and Structure573Chapter 10Working with Databases631Chapter 11Developing Web Applications711Chapter 12Classes, Collections, and Inheritance767Appendix AAdvanced User Interface Controls and Techniques829Appendix BWindows Presentation Foundation (WPF)843Appendix CConverting Mathematical Expressionsto Programming Statements851xviiAppendix D Answers to Checkpoint141853871Appendix EGlossaryAppendix FFunction and Method ReferenceF-1Appendix G Binary and Random-Access FilesG-1Index883Credits909vA01 GADD4658 08 SE FM.indd 504/01/19 7:22 PM

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ContentsPrefaceChapter 1Introduction to Programming and Visual Basic 1xviiComputer Systems: Hardware and Software . 1Programs and Programming Languages . 4TUTORIAL 1-1: Running the Wage Calculator application . 8TUTORIAL 1-2: Running an application that demonstrates event handlers . 101.3 More about Controls and Programming . 11TUTORIAL 1-3: Running an application that demonstrates various controls . 121.4 The Programming Process . 161.5 Visual Studio . 20TUTORIAL 1-4: Starting Visual Studio and setting up the environment . 20TUTORIAL 1-5: Starting a new Visual Basic project . 24TUTORIAL 1-6: Becoming familiar with Visual Studio . 33Summary 35 Key Terms 36 Review Questions and Exercises 36 Programming Challenges 401.11.2Chapter 2Creating Applications with Visual Basic 412.1 Getting Started with Forms and Controls . 412.2 Creating the GUI for Your First Visual Basic Application: The Hello WorldApplication . 52TUTORIAL 2-1: Creating the GUI for the Hello World application . 532.3 Writing the Code for the Hello World Application . 59TUTORIAL 2-2: Writing code for the Hello World application . 622.4 More About Label Controls . 682.5 Creating Multiple Event Handlers . 76TUTORIAL 2-3: Creating the Language Translator application . 772.6 Making Sense of IntelliSense . 802.7 PictureBox Controls . 81TUTORIAL 2-4: Creating the Guess the President application . 84TUTORIAL 2-5: Writing Click event handlers for PictureBox controls . 872.8 The Visible Property . 90TUTORIAL 2-6: Creating the Card Flip application . 912.9 Writing the Code to Close an Application’s Form . 94TUTORIAL 2-7: Adding an Exit button to the Guess the President application . 952.10 Comments, Blank Lines, and Indentation . 982.11 Dealing with Errors . 992.12 Displaying User Messages at Runtime . 102TUTORIAL 2-8: Displaying Message Boxes . 103viiA01 GADD4658 08 SE FM.indd 704/01/19 7:22 PM

viiiContents2.13 Customizing an Application’s Form . 107TUTORIAL 2-9: Setting the FormBorderStyle property and lockingthe controls on a form . 1092.14 Using Visual Studio Help . 110Summary 112 Key Terms 114 Review Questions 115 Programming Challenges 120Chapter 3 Variables and Calculations 125Gathering Text Input . 125TUTORIAL 3-1: Using a TextBox control . 126TUTORIAL 3-2: Building the Date String application . 1283.2 Variables and Data Types . 131TUTORIAL 3-3: Assigning text to a variable . 1383.3 Performing Calculations . 1423.4 Mixing Different Data Types . 148TUTORIAL 3-4: Creating the Tip Calculator application . 1553.5 Formatting Numbers and Dates . 160TUTORIAL 3-5: Creating the Sale Price Calculator Applicationwith Currency Formatting . 1633.6 Class-Level Variables . 167TUTORIAL 3-6: Creating the Change Counter application . 1683.7 Exception Handling . 173TUTORIAL 3-7: Exception Demonstration . 173TUTORIAL 3-8: Salary Calculator project with exception handling . 1773.8 More GUI Details . 1843.9 The Load Event . 192TUTORIAL 3-9: Getting the system date in the Load event handler . 1933.10 Focus on Program Design and Problem Solving: Buildingthe Room Charge Calculator Application . 195TUTORIAL 3-10: Beginning the Room Charge Calculator application . 200TUTORIAL 3-11: Changing a label’s colors . 2063.11 More About Debugging: Locating Logic Errors . 208TUTORIAL 3-12: Single-stepping through an application’s code at runtime . 209Summary 214 Key Terms 217 Review Questions and Exercises 218 Programming Challenges 2243.1Chapter 4Making Decisions 2334.1 The Decision Structure . 2334.2 The If.Then Statement . 235TUTORIAL 4-1: Examining an application that uses the If.Then statement . 2384.3 The If.Then.Else Statement . 241TUTORIAL 4-2: Completing an application that uses theIf.Then.Else statement . 2424.4 The If.Then.ElseIf Statement . 244TUTORIAL 4-3: Completing an application that uses theIf.Then.ElseIf statement . 2454.5 Nested If Statements . 251A01 GADD4658 08 SE FM.indd 804/01/19 7:22 PM

ContentsixTUTORIAL 4-4: Completing an application with a nested If statement . 2514.6 Logical Operators . 2534.7 Comparing, Testing, and Working with Strings . 259TUTORIAL 4-5: Examining an application that performs string comparisons . 262TUTORIAL 4-6: Completing a string searching application . 2674.8 The Select Case Statement . 270TUTORIAL 4-7: Examining Crazy Al’s Sales Commission Calculatorapplication . 2734.9 Introduction to Input Validation . 276TUTORIAL 4-8: Examining an application that uses TryParse forinput validation . 2784.10 Focus on GUI Design: Radio Buttons and Check Boxes . 281TUTORIAL 4-9: Completing an application with radio buttonsand check boxes . 2834.11 Focus on Program Design and Problem Solving: Buildingthe Health Club Membership Fee Calculator Application . 284TUTORIAL 4-10: Building the Health Club Membership FeeCalculator application . 290Summary 294 Key Terms 295 Review Questions and Exercises 296 Programming Challenges 301Chapter 5Lists and Loops 3095.1 Input Boxes . 3095.2 List Boxes . 311TUTORIAL 5-1: Creating list boxes . 3165.3 Introduction to Loops: The Do While Loop . 320TUTORIAL 5-2: Completing an application that uses the Do While loop . 321TUTORIAL 5-3: Modifying the Do While Demo application to usea posttest loop . 325TUTORIAL 5-4: Using a loop to keep a running total . 327TUTORIAL 5-5: Examining an application that uses a user-controlled loop . 3295.4 The Do Until and For.Next Loops . 331TUTORIAL 5-6: Examining an application that uses the Do Until loop . 332TUTORIAL 5-7: Examining an application that uses the For.Next loop . 336TUTORIAL 5-8: Completing an application that uses the For.Next loop . 3375.5 Nested Loops . 3415.6 Multicolumn List Boxes, Checked List Boxes, and Combo Boxes . 342TUTORIAL 5-9: Creating combo boxes . 3465.7 Random Numbers . 348TUTORIAL 5-10: Creating the Coin Toss application . 3505.8 Simplifying Code using the With.End With Statement . 3525.9 ToolTips . 353TUTORIAL 5-11: Adding ToolTips to an application . 3545.10 Focus on Program Design and Problem Solving: Building the Vehicle LoanCalculator Application . 355TUTORIAL 5-12: Building the Vehicle Loan Calculator application . 358Summary 363 Key Terms 364 Review Questions and Exercises 364 Programming Challenges 370A01 GADD4658 08 SE FM.indd 904/01/19 7:22 PM