Programming in Visual Basic 2008

the Author Team Of Julia Bradley And Anita Millspaugh Remain The Guiding Light In Programming With Visual Basic 2008 For Countless Students Around The World. How Better To Master The Most Popular Object-oriented Programming Language Than To Use The Bestselling Textbook? Be At The Cutting Edge Of Technology With Examples, Feedback Questions, And A Full Hands On Programming Example. Apply The Concepts Yourself With Case Studies And Exercises. Screen Captures, Step-by-step Exercises, And Thorough Appendices Ensure That Programming Excellence Begins Here. Title Contents 1 Introduction to Visual Basic 2008 Writing Windows Applications with Visual Basic The Windows Graphical User Interface Programming Languages— Procedural, Event Driven, and Object Oriented The Object Model Microsoft’s Visual Studio Writing Visual Basic Projects The Three-Step Process Visual Basic Application Files The Visual Studio Environment Default Environment Settings The IDE Initial Screen The New Project Dialog The IDE Main Window The Toolbars The Document Window The Form Designer The Solution Explorer Window The Properties Window The Toolbox Help Design Time, Run Time, and Debug Time Writing Your First Visual Basic Project Set Up Your Workspace Plan the Project Define the User Interface Set Properties Write Code Visual Basic Code Statements Code the Event Procedures for Hello World Run the Project Save Your Work Open the Project Modify the Project Print the Code A Sample Printout Finding and Fixing Errors Syntax Errors Run-Time Errors Logic Errors Project Debugging Naming Rules and Conventions for Objects Visual Studio Help Installing and Running MSDN Viewing Help Topics Context-Sensitive Help Managing Windows Your Hands-On Programming Example 2 User Interface Design Introducing More Controls Text Boxes Masked Text Boxes Rich Text Boxes Displaying Text on Multiple Lines Group Boxes Check Boxes Radio Buttons Picture Boxes Using Smart Tags Using Images for Forms and Controls Setting a Border and Style Drawing a Line Working with Multiple Controls Selecting Multiple Controls Deselecting a Group of Controls Moving Controls as a Group Setting Properties for Multiple Controls Aligning Controls Designing Your Applications for User Convenience Designing the User Interface Defining Keyboard Access Keys Setting the Accept and Cancel Buttons Setting the Tab Order for Controls Setting the Form’s Location on the Screen Creating ToolTips Coding for the Controls Clearing Text Boxes and Labels Resetting the Focus Setting the Checked Property of Radio Buttons and Check Boxes Setting Visibility at Run Time Disabling Controls Setting Properties Based on User Actions Changing the Color of Text Using Radio Buttons for Selecting Colors Changing Multiple Properties of a Control Concatenating Text Continuing Long Program Lines Downloading and Using the Line and Shape Controls Your Hands-On Programming Example Good Programming Habits 3 Variables, Constants, and Calculations Data—Variables and Constants Data Types Naming Rules Naming Conventions Constants: Named and Intrinsic Declaring Variables Scope and Lifetime of Variables Calculations Converting Strings to a Numeric Data Type Arithmetic Operations Order of Operations Using Calculations in Code Option Explicit and Option Strict Converting between Numeric Data Types Performing Calculations with Unlike Data Types Rounding Numbers Formatting Data for Display Using Format Specifier Codes Choosing the Controls for Program Output A Calculation Programming Example Planning the Project The Project Coding Solution Handling Exceptions Try/Catch Blocks Displaying Messages in Message Boxes The TextMessage String The Titlebar Text MessageBoxButtons MessageBoxIcon Using Overloaded Methods Testing Multiple Fields Counting and Accumulating Sums Summing Numbers Counting Calculating an Average Your Hands-On Programming Example 4 Decisions and Conditions If Statements Charting If Statements The Helpful Editor Boolean Expressions Comparing Numeric Variables and Constants Comparing Strings Testing for True or False Comparing Uppercase and Lowercase Characters Compound Boolean Expression Short-Circuit Operations Nested If Statements Using If Statements with Radio Buttons and Check Boxes A “Simple Sample” Checking the State of a Radio Button Group Checking the State of Multiple Check Boxes Enhancing Message Boxes Displaying the Message String Displaying Multiple Buttons Input Validation Checking for a Range of Values Checking for a Required Field Performing Multiple Validations The Case Structure Sharing an Event Procedure Calling Event Procedures Your Hands-On Programming Example Debugging Visual Basic Projects Writing Debug Output Pausing Execution with the Break All Button Forcing a Break Checking the Current Values of Expressions Stepping through Code The Locals Window The Autos Window Debugging Step-by-Step Tutorial 5 Menus, Common Dialog Boxes, Sub Procedures, and Function Procedures Menus Defining Menus Creating a Menu— Step-by-Step Coding for Menu Items Standards for Windows Menus Common Dialog Boxes Displaying a Windows Common Dialog Box Using the Information from the Dialog Box Setting Initial Values Creating Context Menus Creating a Context Menu— Step-by-Step Sharing Procedures Writing General Procedures Creating a New Sub Procedure Passing Arguments to Procedures Writing Function Procedures Functions with Multiple Parameters Breaking Calculations into SmallerUnits Basing a New Project on an Existing Project Your Hands-On Programming Example 6 Multiform Projects Using Multiple Forms Creating New Forms Adding and Removing Forms An About Box Using the About Box Template Setting Assembly Information A Splash Screen Using the Splash Screen Template Making the Splash Form Display First Other Template Forms Using the Methods and Events ofForms Showing a Form Hiding or Closing a Form Responding to Form Events The Sequence of Form Events Writing Event Procedures for Selected Events Holding the Splash Screen Display Variables and Constants in Multiform Projects Scope Access Level Lifetime Namespaces Declaration Summary for Variables and Constants Guidelines for Declaring Variables and Constants Running Your Program Outside the IDE Your Hands-On Programming Example 7 Lists, Loops, and Printing List Boxes and Combo Boxes The Items Collection Filling a List The SelectedIndex Property The Items.Count Property Referencing the Items Collection Removing an Item from a List Clearing a List List Box and Combo Box Events Do/Loops The Boolean Data Type Revisited Using a Do/Loop with a List Box For/Next Loops Negative Increment or Counting Backward Conditions Satisfied before Entry Altering the Values of the Loop Control Variables Endless Loops Exiting Loops Skipping to the Next Iteration of a Loop Making Entries Appear Selected Selecting the Entry in a Text Box Selecting an Entry in a List Box Sending Information to the Printer The PrintDocument Component Getting Started with Printing— Step-by-Step Printing Summary Printing the Contents of a List Box Printing the Selected Item from a List Aligning Decimal Columns Displaying a Print Preview Adding a PrintPreview Dialog to the Print Project— Step-by-Step The Using Block Printing Multiple Pages Your Hands-On Programming Example 8 Arrays Single-Dimension Arrays Subscripts Valid Subscripts For Each/Next Statements Structures Declaring Variables Based on aStructure Accessing the Elements in a Structure Variable Including an Array in a Structure Using Array Elements for Accumulators Adding to the Correct Total Debugging Array Programs Table Lookup Coding a Table Lookup Using List Boxes with Arrays Multidimensional Arrays Initializing Two-Dimensional Arrays Printing a Two-Dimensional Table Summing a Two-Dimensional Table Lookup Operation for Two-Dimensional Tables Your Hands-On Programming Example 9 Web Applications Visual Basic and Web Programming Client/Server Web Applications Types of Web Sites File System Web Sites IIS Web Sites Remote Sites and FTP Sites Creating a Web Site Web Page Files Web Forms in the Visual Studio IDE Creating Your First Web Form—Step-by-Step Viewing the HTML Code Controls Event Handling Files Debugging Testing in Other Browsers Laying Out Web Forms Using Tables for Layout Absolute Positioning Including Images on Web Pages Cascading Style Sheets Navigating Web Pages Using Hyperlinks Adding a Second Web Page Using the Validator Controls Maintaining State Retaining the Contents of Controls Retaining the Values of Variables AJAX Managing Web Projects Using the Copy Web Site Tool Some Web Acronyms Your Hands-On Programming Example 10 Database Applications Databases Visual Basic and Databases Database Terminology XML Data Using ADO.NET and Visual Basic Data Access in Visual Studio Binding Sources Table Adapters Datasets Creating a Database Application A Windows Database Application—Step-by-Step The Smart Tag The Database Schema File Binding Individual Data Fields The Data Sources Window Database Details Program—Step-by-Step Selecting Records from a List Converting to Combo Box Selection—Step-by-Step Selecting Fields from the Table Sorting the List Data Choosing the Control Type for Fields Selecting Records Using Web Forms Security in Web Database Applications Creating the Web Selection Application—Step-by-Step LINQ Querying Operating System Data Creating a LINQ Project— Step-by-Step A FileSystem LINQ Example Your Hands-On Programming Example 11 Data Files Data Files Simple VB File I/O Writing and Reading Text Files Writing and Reading Delimited Files .NET File Handling File Handling Using Streams Writing Data in a File Using a StreamWriter Reading Data from a File Using a StreamReader Using the File Common Dialog Box OpenFileDialog Component Properties Displaying the Open File Dialog Box The Open and Write File Program Saving the Contents of a List Box Loading the List Box Checking for Existence of the File Saving the File Querying the User to Save The FormClosing Event Procedure XML Files Your Hands-On Programming Example 12 OOP: Creating Object-Oriented Programs Object-Oriented Programming Objects Object-Oriented Terminology Reusable Classes Multitier Applications Classes Designing Your Own Class Creating Properties in a Class Class Methods Constructors and Destructors Creating a New Class— Step-by-Step Property Procedures with Mixed Access Levels Creating a New Object Using a Class Defining and Using a New Object—Step-by-Step Instance Variables versus Shared Variables Adding Shared Properties to the Step-by-Step Exercise Destructors Garbage Collection Inheritance Inheriting Properties and Methods Constructors in Inheritance Overriding Methods Accessing Properties Creating a Derived Class Based on BookSale Adding Inheritance to the Step-by-Step Exercise Creating a Base Class Strictly for Inheritance Inheriting Form Classes Passing Properties between Forms Passing Values to a Summary Form Passing Objects as Properties Managing Multiclass Projects Adding an Existing Class File to a Project Using the Object Browser Examining VB Classes Examining Your Own Classes Your Hands-On Programming Example 13 Graphics, Animation, Sound, Sound, and Drag-and-Drop Graphics in Windows and the Web The Graphics Environment Steps for Drawing Graphics The Paint Event Procedure Pen and Brush Objects The Coordinate System Graphics Methods Random Numbers Simple Animation Displaying an Animated Graphic Controlling Pictures at Run Time Moving a Picture The Timer Component The Scroll Bar Controls Scroll Bar Properties Scroll Bar Events A Programming Example Playing Sounds Adding Sound Files to the Resources for a Project A Sound-Playing Program Playing Videos Using the Windows Media Player Control Drag-and-Drop Programming The Source Object The Target Object The Drag-and-Drop Program Dragging and Dropping an Image Your Hands-On Programming Example 14 Additional in Visual Advanced Topics Basic Advanced Validation Techniques The ErrorProvider Component The MaxLength and CharacterCasing Properties Field-Level Validation Capturing Keystrokes from the User Using the Masked Text Box for Validation Code Snippets and Samples Code Snippets Sample Projects Multiple Document Interface Creating an MDI Project Adding a Window Menu Toolbars and Status Bars Toolbars Status Bars Some Helpful Date Controls The Calendar Controls Displaying Web Pages on a Windows Form The WebBrowser Control A WebBrowser Program Checking for the Enter Key XML Data Files Nodes, Elements, and Attributes VB Tools for Reading XML Files Writing and Reading an XML File Windows Presentation Foundation (WPF) WPF Interoperability Adding a WPF Control to a Windows Form—Step-by-Step Writing a WPF Application Creating a WPF Hello World Application—Step-by-Step The Role of Expression Blend Appendix A Answers to A Feedback Questions Appendix B Methods and Functions B for Working with Dates, Financial Calculations, Mathematics, and String Operations Working with Dates The DateTime Structure Retrieving the System Date and Time Date Variables Converting Values to a Date Format Finding the Difference between Dates Checking for the Day of the Week Financial Functions The Pmt Function The Rate Function Functions to Calculate Depreciation Mathematical Functions Working with Strings Methods for Conversion between Data Types Functions for Checking Validity Functions for Formatting Output Appendix C Tips and Shortcuts for Mastering the Environment Set Up the Screen for Your Convenience Close or Hide Extra Windows Use the Full Screen Modify the Screen Layout Split the Screen Vertically Reset the IDE Layout Set Options for Your Work Use Shortcuts in the Form Designer Use the Layout Toolbar Nudge Controls into Place Use Snap Lines to Help Align Controls Use Shortcuts in the Editor Use the Text Editor Toolbar Use Keyboard Shortcuts When Editing Code Split the Editor Window Use Drag-and-Drop Editing Drag Commonly Used Code to the Toolbox Rename Variables and Objects Use Context-Sensitive Help Copy and Move Projects Copy and Move a Project Deploy Applications Appendix D Security Authentication and Authorization Authorization and Impersonation Writing Secure Code SQL Injection Error Messages Code Access Security Glossary Index The author team of Bradley and Millspaugh remain the guiding light in Programming with Visual Basic 2008 for countless students around the world. This updated edition of their bestseller contains examples, feedback questions, screen captures, step-by-step exercises, and thorough appendices