Computer Programming Concepts and Visual Basic David I. Schneider

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416 Computer Programming Concepts and Visual Basic E. Delete a control. 1. Select the control to be deleted. 2. Press the Del key. F. Delete a related group of controls. 1. Select the picture box or frame holding the related group of controls. 2. Press the Del key. G. Move a control, related group of controls, or form to a new location. 1. Move the mouse onto the control, the picture box or frame containing the related group of controls, or the title bar of the form. 2. Drag the object to the new location. H. Change the size of a control. 1. Select the desired control. 2. Move the mouse to one of the eight sizing handles located around the edge of the control. The mouse pointer will change to a double-arrow which points in the direction that resizing can occur. 3. Drag to the desired size. I. Change the size of a Project Container window. 1. Move the mouse to the edge or corner of the window that is to be stretched or shrunk. The mouse pointer will change to a double-arrow which points in the direction that resizing can occur. 2. Drag to the desired size. J. Use the Color palette to set foreground and background colors. 1. Select the desired control or the form. 2. Press Alt/V/L to activate the Color palette. 3. If the Color palette obscures the object you are working with, you may wish to use the mouse to grab the Color palette by its title bar and move it so that at least some of the object shows. 4. To set the foreground color, click on the square within a square at the far left in the Color palette and click on the desired color from the palette. 5. To set the background color, click on the region within the outer square but outside the inner square and click on the desired color from the palette. or 1. Select the desired control or the form. 2. Press Alt/V/W or F4 to activate the Properties window. 3. To set the foreground color, click on the down-arrow to the right of the Fore- Color settings box, click on the Palette tab, and click on the desired color. 4. To set the background color, click on the down-arrow to the right of the Back- Color settings box, click on the Palette tab, and click on the desired color. HOW TO: WORK WITH THE PROPERTIES OF AN OBJECT A. Activate the Properties window. 1. Press Alt/V/W. or
1. Press F4. or 1. Click on an object on the form with the right mouse button. 2. In the shortcut menu, click on Properties. B. Highlight a property in the Properties window. 1. Activate the Properties window and press the Enter key. 2. Use the Up or Down Arrow keys to move the highlight bar to the desired property. or 1. Activate the Properties window. 2. Click on the up or down arrow located at the ends of the vertical scroll bar at the right side of the Properties window until the desired property is visible. 3. Click on the desired property. C. Select or specify a setting for a property. 1. Highlight the property whose setting is to be changed. 2. Click on the settings box or press Tab to place the cursor in the settings box. a. If a black down-arrow appears at the right end of the settings box, click on the down-arrow to display a list of all allowed settings, and then click on the desired setting. b. If an ellipsis (three periods: . . .) appears at the right end of the settings box, press F4 or click on the ellipsis to display a dialog box. Answer the questions in the dialog box and click on OK or Open, as appropriate. c. If the cursor moves to the settings box, type in the new setting for the property. D. Change a property setting of an object. 1. Select the desired object. 2. Activate the Properties window. 3. Highlight the property whose setting is to be changed. 4. Select or specify the new setting for the property. E. Let a label change size to accommodate its caption. 1. Set the label’s AutoSize property to True. (The label will shrink to the smallest size needed to hold the current caption. If the caption is changed, the label will automatically grow or shrink horizontally to accommodate the new caption. If the WordWrap property is set to True as well, the label will grow and shrink vertically, keeping the same width.) F. Let a label caption use more than one line. 1. Set the label’s WordWrap property to True. [If the label is not wide enough to accommodate the entire caption on one line, part of the caption will wrap to additional lines. If the label height is too small, then part or all of these wrapped lines will not be visible (unless the AutoSize property is set to True).] G. Let a text box display more than one line. 1. Set the text box’s MultiLine property to True. (If the text box is not wide enough to accommodate the text entered by the user, the text will scroll down to new Appendix B 417
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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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Creating and Designing Databases 34
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TABLE 11.5(B) TABLE 11.5(C) course
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(a) Update the quantity field of th
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12.1 CLASSES AND OBJECTS noun A wor
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Task Statement Assign a value to a
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EXAMPLE 1 and then an instance of t
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[Run, enter the data for a student
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SOLUTION: Object Property Setting f
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Page 387 and 388: Next i End Sub Public Function Read
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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
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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
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Page 447 and 448: ISNUMERIC The value of the function
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Page 457 and 458: SECOND The function Second extracts
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Page 461 and 462: UNLOCK The Unlock command is intend
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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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