Computer Programming Concepts and Visual Basic David I. Schneider

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398 Computer Programming Concepts and Visual Basic will be displayed as Line One Line Two and Line One Line Two will be displayed as Line One Line Two Sometimes the begin tag of a pair of tags contains additional information needed to carry out the task. The pair of tags and create a hyperlink to the Web page with the specified address and the text between the tags underlined. For instance, the element This is a link to Prentice-Hall. in an HTML document will be displayed by the browser as This is a link to Prentice-Hall. When you click anywhere on this line, the browser will move to the Prentice-Hall Web site. HTML documents consist of two parts, called the head and the body, that are delineated by the pairs of tags , and , . In addition, the entire HTML document is usually enclosed in the pair of tags , . The HTML document in Figure 13-4 produces the Web page shown in Figure 13-5. FIGURE 13-4 HTML Document
FIGURE 13-5 Web Page ■ PLACING ACTIVEX CONTROLS IN HTML DOCUMENTS With Internet Explorer, ActiveX controls, such as text boxes, command buttons, and userbuilt controls, can be placed on Web pages. For instance, the element Web Page Programming With VBScript 399 tells Internet Explorer to place a command button (named cmdPush) on the Web page. The string beginning with CLSID is the control's identification number in the Windows registry. The PARAM tags set properties of the control. For instance, the first PARAM tag sets the caption of the command button to “Push Me.” Creating the OBJECT element is so cumbersome that Microsoft has developed a tool, called the ActiveX Control Pad, that makes placing a control on a Web page nearly as easy as placing a control on a Visual Basic form. The ActiveX Control Pad is sometimes included with Internet Explorer. Also, the ActiveX Control Pad can be downloaded separately from the Microsoft Web site. (See Comment 7.) The ActiveX Control Pad is actually a word processor that looks and acts much like Notepad. The following walkthrough uses the ActiveX Control Pad to create a Web page containing a text box and a command button.
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Computer Programming Concepts and V
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CONTENTS SECTION 1: PROBLEM SOLVING
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13.3 WEB PAGE PROGRAMMING WITH VBSC
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S E C T I O N 1 PROBLEM SOLVING
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4 Computer Programming Concepts and
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10 Computer Programming Concepts an
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S E C T I O N 2 FUNDAMENTALS OF PRO
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3.1 SUB PROCEDURES, PART I Structur
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The second task performed by the ad
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‘The density (number of people pe
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"Hawaii", 1184000, 6471 "Alaska", 6
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dure by just using the variable in
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Call CalculateSum(x, y, s) Call Dis
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■ FORM-LEVEL VARIABLES Visual Bas
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3. In Appendix D, the section “St
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Private Sub cmdDetermine_Click() Di
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Private Sub cmdCompute_Click() Dim
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preceded with the word ByVal. Built
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It is clear from the hierarchy char
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The meaningful procedure names, alo
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FIGURE 3-9 Sample Run for Programmi
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4.1 RELATIONAL AND LOGICAL OPERATOR
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(a) (2 < n) And (n < 6) (b) (2 < n)
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SOLUTION: In the following program,
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The Else part of an If block can be
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picTax.Cls picTax.Print “Your FIC
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Case 4, 5 picOutcome.Print “You a
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EXAMPLE 3 The following program use
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Case Else picResult.Print “The st
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4. The items in the value list must
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The hierarchy chart in Figure 4-4 s
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‘Program to compute employees’
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Private Function TaxMarried(adjPay
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and tells us whether the food meets
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S E C T I O N 5 REPETITION
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132 Computer Programming Concepts a
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S E C T I O N 6 ARRAYS
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S E C T I O N 7 SEQUENTIAL FILES
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S E C T I O N 8 RANDOM-ACCESS FILES
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S E C T I O N 9 THE GRAPHICAL DISPL
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10.1 LIST BOXES AND COMBO BOXES The
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Private Sub cmdAdd_Click() Dim item
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either typing in information or jus
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Private Sub cmdDisplay_Click() picF
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clicks on the square to toggle betw
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circle and the button is said to be
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hsbBar.Value changes accordingly. T
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THE SHAPE CONTROL The shape control
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FIGURE 10-9 A Picture Created with
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Rows 9 ScrollBars 0 - flexScrollBar
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Private Sub cmdQuit_Click() End End
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Here, the menu bar contains two men
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Clipboard.Clear deletes the content
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cedures that are available to all f
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The Flags property influences certa
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13. Additional forms serve as new w
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6. Voting Machine. The members of t
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11.1 AN INTRODUCTION TO DATABASES T
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9. Click on the down arrow to the r
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clicked or a Move, Update, Delete,
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Do While (Not foundFlag) And (Not d
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mary key. Databases of student enro
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question mark stands for a single c
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1995 populations. When the second c
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If a Find method does not locate a
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place an x in the check box next to
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population (in descending order). W
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Creating and Designing Databases 34
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9. When all fields have been specif
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Page 357 and 358: TABLE 11.5(B) TABLE 11.5(C) course
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Page 365 and 366: Task Statement Assign a value to a
Page 367 and 368: EXAMPLE 1 and then an instance of t
Page 369 and 370: [Run, enter the data for a student
Page 371 and 372: SOLUTION: Object Property Setting f
Page 373 and 374: 4. Methods can be either Function o
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Page 377 and 378: txtFinal.Text = “” picGrades.Pr
Page 379 and 380: ■ EVENTS In the previous section
Page 381 and 382: frmCircles.ForeColor = vbRed ‘Mak
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Page 385 and 386: End Sub Private Sub cmdDropBomb_Cli
Page 387 and 388: Next i End Sub Public Function Read
Page 389 and 390: Remove method. The number of object
Page 391: S E C T I O N 13 COMMUNICATING WITH
Page 394 and 395: 386 Computer Programming Concepts a
Page 413: A P P E N D I C E S
Page 431 and 432: APPENDIX C VISUAL BASIC STATEMENTS,
Page 433 and 434: CANCEL The Cancel property provides
Page 435 and 436: COLS and ROWS The Cols and Rows pro
Page 437 and 438: DEFINT, DEFLNG, DEFSNG, DEFDBL, DEF
Page 439 and 440: ENVIRON Visual Basic has an environ
Page 441 and 442: FONT.ITALIC or FONTITALIC These pro
Page 443 and 444: yields “1234.”, Format(1234000,
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Page 447 and 448: ISNUMERIC The value of the function
Page 449 and 450: Unlock statement is used to remove
Page 451 and 452: Focus Default Default Number First
Page 453 and 454: OR (Logical Operator) The logical e
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SECOND The function Second extracts
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STRETCH When the Stretch property o
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UNLOCK The Unlock command is intend
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[COLOR]: Numbers written in base 16
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Appendix D 457
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466 Technology of the Internet D Da
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468 Technology of the Internet Rela
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470 Technology of the Internet 2. D
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SYSTEM REQUIREMENTS CD-ROM INSTRUCT
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Computer Programming Concepts and Visual Basic David I. Schneider

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