Rent 9780760010716 | Programming With Microsoft Visual Basic 6.0

Table of Contents

Preface

iii

Read This Before you Begin

An Overview of Visual Basic

(1)

A History and a Demonstration

(14)

... MORE

A Brief Description of Visual Basic

(1)

A Brief History of Programming Languages

(3)

Machine Languages

(1)

Assembly Languages

(1)

High-Level Languages

(1)

Procedure-Oriented High-Level Languages

(1)

The Introduction of Windows

(1)

Object-Oriented/Event-Driven High-Level Languages

(1)

OOP Terminology

(2)

A Visual Basic Demonstration

(3)

Using the Tutorials Effectively

(1)

Questions

(4)

tutorial 1 AN INTRODUCTION TO VISUAL BASIC

(74)

Creating a Copyright Screen

(2)

Previewing the Copyright Screen

(1)

Lesson A: Creating a New Project

(22)

Starting Visual Basic

(2)

The Visual Basic Startup Screen

(9)

The Main Window

(1)

The Form Window

(1)

The Toolbox Window

(1)

The Project Explorer Window

(2)

The Properties Window

(2)

Setting the Caption Property

(1)

Setting an Object's Name Property

(2)

Setting the BackColor Property

(1)

Setting the Project's Name Property

(1)

Saving a Visual Basic Project

(1)

Starting and Ending a Visual Basic Project

(1)

Opening a New Project

(1)

Opening an Existing Project

(1)

Exiting Visual Basic

(1)

Summary

(2)

Questions

(3)

Exercises

(2)

Lesson B: Working with Controls

(18)

Getting Help in Visual Basic

(4)

Using the F1 Key

(1)

Adding a Control to a Form

(1)

Sizing, Moving, and Deleting a Control

(1)

Adding Label Controls to the Copyright Screen

(1)

Setting the Properties of a Label Control

(1)

Setting the Left and Top Properties

(1)

Changing the Property for More than One Control at a Time

(1)

Saving Files Under a Different Name

(2)

Summary

(1)

Questions

(1)

Exercises

(5)

Lesson C: Writing Code

(32)

Adding an Image Control to the Form

(2)

Adding a Command Button to the Form

(1)

Writing Visual Basic Code

(4)

Setting the BorderStyle Property

(1)

Adding a Frame Control to a Form

(3)

Hiding and Displaying Controls

(4)

The Options Dialog Box

(1)

Adding a Scroller Control to the Form

(3)

Changing the Code Window Display

(1)

Printing a Visual Basic Application

(1)

Making an Executable (.exe) File

(2)

Summary

(1)

Questions

(2)

Exercises

(4)

Debugging

(2)

tutorial 2 DESIGNING APPLICATIONS

(72)

Creating an Order Screen

(7)

Solving the Problem Using a Procedure-Oriented Approach

(3)

Solving the Problem Using an Object-Oriented/Event-Driven (OOED) Approach

(3)

Lesson A: Planning an OOED Application in Visual Basic

(13)

Creating an OOED Application

(1)

Planning an OOED Application

(7)

Identifing the Application's Tasks

(2)

Identifing the Objects

(1)

Identifing the Events

100

(2)

Drawing a Sketch of the User Interface

102

(2)

Summary

104

(1)

Questions

105

(2)

Exercises

107

(2)

Lesson B: Building the User Interface

109

(20)

Preparing to Create the User Interface

109

(6)

Including Graphics in the User Interface

111

(1)

Including Different Fonts in the User Interface

111

(1)

Including Color in the User Interface

112

(1)

The BackStyle Property

113

(1)

The BorderStyle and Appearance Properties

114

(1)

Setting the Text Property

115

(1)

Adding a Text Box Control to the Form

115

(3)

Controlling the Focus with the TabIndex Property

118

(1)

Locking the Controls on a Form

119

(1)

Assigning Access Keys

120

(4)

Summary

124

(1)

Questions

125

(2)

Exercises

127

(2)

Lesson C: Coding, Testing, Debugging, and Documenting the Application

129

(32)

Coding the Application

129

(2)

Coding the Print Order Button

131

(4)

Assigning a Value to a Property During Run Time

131

(2)

Using the PrintForm Method

133

(1)

Using the SetFocus Method

134

(1)

Internally Documenting the Program Code

134

(1)

Coding the Clear Screen Button

135

(3)

Writing Visual Basic Equations

138

(1)

Coding the Calculate Order Button

139

(4)

The Val Function

143

(1)

Using the Format Function

144

(2)

The MinButton, MaxButton, ControlBox, and BorderStyle Properties

146

(2)

Testing and Debugging the Application

148

(1)

Assembling the Documentation

149

(1)

Summary

149

(1)

Questions

150

(1)

Exercises

151

(8)

Debugging

159

(2)

tutorial 3 USING VARIABLES AND CONSTANTS

161

(76)

Revising the Skate-Away Sales Application

161

(3)

Previewing the Completed Application

162

(2)

Lesson A: Creating Variables and Constants

164

(26)

Using Variables to Store Information

164

(4)

Data Types

164

(3)

Naming Variables

167

(1)

Declaring a Variable

168

(1)

Storing Data in a Variable

169

(1)

The Scope of a Variable

170

(1)

The Option Explicit Statement

171

(2)

Creating a Local Variable

173

(3)

Creating a Form-Level Variable

176

(3)

Creating a Global Variable

179

(3)

Adding a Code Module to a Project

180

(2)

Removing and Adding a File

182

(1)

Symbolic Constants

183

(3)

Summary

186

(1)

Questions

186

(2)

Exercises

188

(2)

Lesson B: Modifying the Skate-Away Sales Application

190

(24)

Storing Information Using Local and Form-Level Variables

190

(2)

Modifying the Calculate Order Button's Code

192

(6)

Concatenating Strings

198

(3)

The InputBox Function

201

(3)

The Newline Character

204

(1)

The Object Browser

204

(3)

Making a Command Button the Default Button

207

(1)

Summary

208

(1)

Questions

208

(2)

Exercises

210

(4)

Lesson C: Improving the Appearance of the Skate-Away Sales Application

214

(23)

Using a Dialog Box

214

(1)

Adding an Existing Form to the Application

215

(1)

Specifying the Startup Form

215

(1)

Loading and Displaying a Form

216

(2)

Adding a Code Module to a Project

218

(3)

Making a Form Resemble a Standard Windows Dialog Box

219

(2)

Adding the Copyright Form to the Project

221

(4)

Using a Timer Control

223

(1)

Removing a Coded Control from the Form

223

(1)

Changing the Appearance of the Mouse Pointer

224

(1)

Summary

225

(1)

Questions

226

(2)

Exercises

228

(6)

Debugging

234

(3)

tutorial 4 THE SELECTION STRUCTURE

237

(100)

Creating a Math Application

237

(4)

Previewing the Completed Application

238

(3)

Lesson A: The If... Then... Else and Select Case Statements

241

(39)

The Selection Structure

241

(1)

Writing Pseudocode for the Selection Structure

242

(1)

Using a Flowchart

243

(2)

Coding the Selection Structure in Visual Basic

245

(2)

Relational Operators

245

(2)

Example 1

247

(1)

Example 2

248

(2)

Logical Operators

250

(3)

Examples of the And and the Or Operators

252

(1)

Example 3

253

(2)

Example 4

255

(1)

The UCase Function

256

(1)

Nested Selection Structures

257

(2)

Example 5

259

(2)

The Case Form of the Selection Structure

261

(1)

The Select Case Statement

262

(3)

Example 1

265

(1)

Using To and Is in an Expressionlist

266

(4)

Example 2

266

(3)

Example 3

269

(1)

Summary

270

(1)

Questions

271

(4)

Exercises

275

(5)

Lesson B: More Visual Basic Controls

280

(27)

The Math Application

280

(2)

Using Visual Basic's Icons

282

(1)

Adding an Option Button Control to the Form

282

(5)

Grouping Option Button Controls

283

(4)

Adding a Check Box Control to the Form

287

(2)

Drawing a Control in a Frame

289

(3)

Locking the Controls and Setting the TabIndex Property

290

(2)

Coding the Level 1 and Level 2 Option Buttons

292

(2)

Creating a User-Defined Sub Procedure

294

(2)

The Call Statement

296

(2)

Coding the Addition and Subtraction Option Buttons

298

(1)

Creating a Default Option Button

299

(3)

Modifying the RandomNumbers User-Defined Sub Procedure

300

(2)

Summary

302

(1)

Questions

303

(2)

Exercises

305

(2)

Lesson C: Completing the Math Application

307

(30)

Static Variables

307

(1)

Coding the Verify Answer Button

308

(13)

The LoadPicture Function

312

(1)

The MsgBox Function

313

(6)

The SelStart and SelLength Properties

319

(1)

The Len Function

320

(1)

The GotFocus Event

321

(1)

Coding the Display Summary Information Check Box

321

(2)

Summary

323

(1)

Questions

324

(1)

Exercises

325

(9)

Debugging

334

(3)

tutorial 5 THE REPETITION STRUCTURE

337

(76)

Creating a Grade Calculation Application

337

(2)

Previewing the Completed Application

338

(1)

Lesson A: The Repetition Structure (Looping)

339

(32)

The Repetition Structure

339

(1)

The For Next (Automatic Counter) Loop

340

(4)

Example 1

342

(1)

Example 2

343

(1)

The Do While and the Do Until Loops

344

(10)

Flowchart and Pseudocode for the Do While and the Do Until Loops

346

(2)

Do While Example

348

(1)

Do Until Example

349

(3)

Another Example of the Do While Loop

352

(2)

Counters and Accumulators

354

(8)

Summary

362

(1)

Questions

363

(3)

Exercises

366

(5)

Lesson B: Using Control Arrays

371

(20)

The Grade Application

371

(3)

Creating a Control Array While Adding Controls to the Form

374

(3)

Making Existing Controls into a Control Array

377

(2)

The Enabled Property

379

(1)

Viewing the Code Window for a Control Array

380

(2)

Coding the Check Box Array

382

(2)

Coding a Control's Array's GotFocus Event

384

(1)

Summary

385

(1)

Questions

386

(2)

Exercises

388

(3)

Lesson C: Completing the Grade Application

391

(22)

Coding the Display Grade Command Button

391

(4)

The Change Event

395

(4)

Centering the Contents of a Label Control

399

(1)

Using the MsgBox Function to Communicate with the User

399

(2)

The Unload Event

401

(3)

Summary

404

(1)

Questions

404

(1)

Exercises

405

(5)

Debugging

410

(3)

tutorial 6 SEQUENTIAL ACCESS FILES, MENUS, AND REPORTS

413

(104)

The PAO Application

413

(4)

Previewing the Completed Applications

414

(3)

Lesson A: Sequential Access Data Files and Reports

417

(49)

Creating the PAO Application

417

(1)

Creating a List Box

418

(5)

The AddItem Method

420

(2)

The Sorted Property

422

(1)

The ListIndex Property

422

(1)

Data Files

423

(2)

Sequential Access Data Files

425

(1)

Coding the Enter Information Command Button

426

(1)

Opening a Data File

426

(3)

Writing to a Sequential Access File

429

(1)

Closing a Sequential Access File

430

(1)

Coding the Display Totals Button

431

(4)

The EOF Function

434

(1)

Reading a Record from a Sequential Access File

435

(1)

Updating the Appropriate Label Control

435

(3)

The Print Method

438

(11)

Changing the Type and Size of the Printer Font

441

(4)

Justifying and Aligning the Numbers in a Column

445

(4)

Completing the PAO Application

449

(3)

Modifying the Print Report Button's Click Event Procedure

450

(2)

Summary

452

(1)

Questions

453

(4)

Exercises

457

(9)

Lesson B: Menus

466

(25)

Creating the Text Editor

466

(1)

The MultiLine Property and the ScrollBars Property

467

(1)

Sizing a Control Along With the Form

467

(1)

Adding a Menu Control to the Form

468

(6)

Creating a Separator Bar

473

(1)

Creating the Edit Menu

474

(2)

Coding Menu Items

476

(1)

The Clipboard Object

477

(1)

The SetText, GetText(), and Clear Methods

477

(1)

The SelText Property

478

(1)

Coding the Edit Menu

478

(2)

Coding the Edit Menu's Copy Command

480

(1)

Coding the Edit Menu's Cut Command

481

(1)

Coding the Edit Menu's Paste Command

481

(1)

Summary

482

(2)

Questions

484

(3)

Exercises

487

(4)

Lesson C: String Manipulation

491

(26)

Visual Basic's String Manipulation Functions

491

(1)

The Left and Right Functions

491

(3)

The Mid Function

494

(2)

The Instr Function

496

(1)

Coding the Edit Menu's Find Command

497

(4)

Coding the Edit Menu's Find Next Command

501

(4)

Summary

505

(1)

Questions

505

(2)

Exercises

507

(7)

Debugging

514

(3)

tutorial 7 DIALOG BOXES AND ERROR TRAPPING

517

(60)

Completing the Text Editor Application

517

(3)

Previewing the Completed Application

518

(2)

Lesson A: Dialog Boxes

520

(19)

The Common Dialog Control

520

(2)

Displaying an Open Dialog Box

522

(4)

The Filter Property

524

(2)

The Filename Property

526

(1)

Displaying a Save As Dialog Box

526

(2)

Displaying a Print Dialog Box

528

(1)

The Flags Property

529

(2)

Displaying a Font Dialog Box

531

(2)

Displaying a Color Dialog Box

533

(2)

Summary

535

(1)

Questions

536

(1)

Exercises

537

(2)

Lesson B: Coding the Text Editor's File Menu

539

(18)

Opening the Text Editor Application

539

(1)

Coding the Text Editor Application

540

(1)

Coding the File Menu's Save As Command

541

(4)

The Print # Statement

543

(2)

Setting the CancelError Property

545

(3)

The On Error Statement and the Error-Handling Routine

546

(2)

Coding the File Menu's New Command

548

(4)

Summary

552

(1)

Questions

553

(2)

Exercises

555

(2)

Lesson C: Completing the Text Editor Application

557

(20)

Coding the File Menu's Save Command

557

(2)

Coding the File Menu's Print Command

559

(1)

Coding the File Menu's Open Command

560

(3)

The Input and LOF Functions

562

(1)

Coding the Form's Unload Event

563

(4)

Summary

567

(1)

Questions

567

(1)

Exercises

568

(4)

Debugging

572

(5)

tutorial 8 RANDOM ACCESS FILES

577

(68)

The Cole's Playhouse Application

577

(3)

Previewing the Application

578

(2)

Lesson A: Random Access Files

580

(24)

Random Access Files versus Sequential Access Files

580

(1)

Sequential Access vs. Random Access File Storage

581

(3)

The Type Statement

584

(3)

Coding the Code Module

586

(1)

Creating and Opening a Random Access File

587

(1)

Coding the Form's Load Event Procedure

587

(1)

Closing a Random Access File

588

(1)

Writing Records to a Random Access File

588

(4)

Coding the Enter Item Button

589

(3)

Initializing a Random Access File

592

(2)

Reading Records from a Random Access File

594

(2)

Coding the Display Item Button

594

(2)

Summary

596

(2)

Questions

598

(3)

Exercises

601

(3)

Lesson B: The Cole's Playhouse Application

604

(23)

The Cole's Playhouse Application

604

(4)

Coding the Cole's Playhouse Application

608

(1)

Coding the File Menu's New Command

609

(1)

Passing Information to a Sub Procedure

610

(1)

Using Visual Basic's Color Constants

611

(1)

Creating a User-Defined Procedure that Receives Data

612

(4)

Coding the File Menu's Open Command

616

(4)

Summary

620

(1)

Questions

621

(2)

Exercises

623

(4)

Lesson C: Completing the Cole's Playhouse Application

627

(18)

Coding the lblSeat Control Array

627

(3)

Referencing a Control in Another Form

628

(2)

Coding the Enter Ticket Button

630

(4)

The Trim Function

633

(1)

Coding the Cancel Ticket Button

634

(1)

Coding the Return to Main Button

635

(1)

Summary

636

(1)

Questions

637

(1)

Exercises

638

(4)

Debugging

642

(3)

tutorial 9 DATABASE ACCESS

645

(72)

Modifying the Cole's Playhouse Application

645

(3)

Previewing the Modified Cole's Playhouse Application

646

(2)

Lesson A: Using Visual Data Manager

648

(24)

Database Concepts and Terminology

648

(1)

Designing the Cole's Playhouse Database

649

(3)

Using Visual Data Manager to Create the Cole Database

652

(6)

Creating an Index

658

(1)

Including Data Validation Rules in a Table

659

(2)

Opening an Existing Database

661

(5)

Summary

666

(1)

Questions

666

(2)

Exercises

668

(4)

Lesson B: Using the ADO Data Control

672

(17)

Microsoft's UDA Approach to Accessing Data

672

(1)

The Cole's Playhouse Application

672

(1)

Using the ADO Data Control

673

(5)

Binding Controls to an ADO Data Control

678

(1)

Using the SQL Select Command

679

(4)

Summary

683

(1)

Questions

683

(2)

Exercises

685

(4)

Lesson C: Writing Code to Add, Delete, and Update Records

689

(28)

The Cole's Playhouse Application

689

(1)

The Recordset and Field Objects

689

(2)

The ADO Data Control's Refresh Method

691

(1)

Completing the Cole's Playhouse Application

691

(3)

Coding the lblSeat Array's Click Event

694

(3)

Coding the Return to Main Button

697

(1)

Coding the Enter Ticket Button

698

(2)

Coding the Cancel Ticket Button

700

(2)

Summary

702

(1)

Questions

703

(2)

Exercises

705

(8)

Debugging

713

(4)

tutorial 10 VARIABLE ARRAYS

717

(84)

Creating A Payroll Application

717

(3)

Previewing the Completed Application

718

(2)

Lesson A: Storing Data in a Variable Array

720

(36)

Variable Arrays

720

(2)

Advantages of Variable Arrays

721

(1)

Creating a One-dimensional Variable Array

722

(1)

Storing Data in a One-dimensional Variable Array

723

(1)

The President Application

724

(1)

Coding the President Application

724

(6)

The Form's Load Event Procedure

725

(1)

The Display Name Button

725

(3)

The Display Number Button

728

(2)

The Test Score Application

730

(8)

The Average Score Button

732

(1)

The Highest Score Button

733

(2)

The Update Scores Button

735

(3)

The Classroom Application

738

(6)

Summary

744

(1)

Questions

744

(6)

Exercises

750

(6)

Lesson B: The DataGrid Control and Object Variables

756

(27)

The Colfax Industries Payroll Application

756

(2)

The DataGrid Control

758

(10)

Improving the Appearance of the DataGrid Control's Data

761

(7)

Coding the DataGrid Control

768

(5)

Creating an Object Variable

770

(2)

Rounding Numbers

772

(1)

Summary

773

(1)

Questions

773

(3)

Exercises

776

(7)

Lesson C: Completing the Colfax Payroll Application

783

(18)

Storing the Federal Withholding Tax Tables in Two Two-dimensional Arrays

783

(4)

Creating a Function Procedure to Calculate the FWT

787

(4)

Invoking a Function Procedure

791

(1)

Summary

792

(1)

Questions

793

(1)

Exercises

793

(1)

Debugging

794

(7)

appendix a Creating a Web Page With Visual Basic

801

(9)

appendix b Visual Basic's DragAndDrop Feature

810

(5)

appendix c Using the Clipboard, DDE, and Ole

815

(23)

appendix d Creating Your Own Activex Control

838

(5)

index

843

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Programming With Microsoft Visual Basic 6.0

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