ch02 - Microsoft Visual Basic 2008: Reloaded Third Edition...

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Microsoft Visual Basic 2008: Reloaded Third Edition Chapter Two Creating a User Interface
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Objectives After studying this chapter, you should be able to: Plan an application Complete a TOE chart Use a text box and table layout panel Explain the difference between a primary window and a dialog box Follow the Windows standards regarding the layout and labeling of controls Microsoft Visual Basic 2008: Reloaded, Third Edition 2
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Objectives (continued) Follow the Windows standards regarding the use of graphics, fonts, and color Assign access keys to controls Set the tab order Designate a default button and a cancel button Add a splash screen to a project Microsoft Visual Basic 2008: Reloaded, Third Edition 3
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Planning an Application Plan the application before creating the user interface Work jointly with the user to ensure the success of the application TOE (Task, Object, Event) chart : Shows application’s tasks, objects, and events Tasks, objects, and events should be identified in the first three steps of planning Microsoft Visual Basic 2008: Reloaded, Third Edition 4
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Microsoft Visual Basic 2008: Reloaded, Third Edition 5 Planning an Application (continued) Figure 2-1: How to plan an application
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Sunshine Cellular Company Sunshine Cellular Company: Takes orders by phone for cell phones priced at $100 Two colors: blue and silver Currently the salespeople calculate the order total Develop an order-taking application for this company First, identify the application’s tasks Microsoft Visual Basic 2008: Reloaded, Third Edition 6
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Microsoft Visual Basic 2008: Reloaded, Third Edition 7 Identifying the Application’s Tasks Figure 2-2: Current order form used by Sunshine Cellular
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Identifying the Application’s Tasks (continued) First, review current user procedures and forms Ask these questions: What information must be displayed on screen or printed on a printer? What information will the user need to enter into the UI to produce the desired display or printout? What information will the program need to calculate to produce the desired display or printout? How will the user end the application? Will previous information need to be cleared from the screen before new information is entered? Microsoft Visual Basic 2008: Reloaded, Third Edition 8
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Microsoft Visual Basic 2008: Reloaded, Third Edition 9 Identifying the Application’s Tasks (continued) Figure 2-3a: Tasks entered in a TOE chart
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Identifying the Application’s Tasks (continued) Microsoft Visual Basic 2008: Reloaded, Third Edition 10 Figure 2-3b: Tasks entered in a TOE chart (continued)
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Identifying the Objects Assign each task to an object in the user interface Text box : a control that allows the user to input information Use a button to initiate the calculations Use labels to guide the user Microsoft Visual Basic 2008: Reloaded, Third Edition 11
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Microsoft Visual Basic 2008: Reloaded, Third Edition 12 Figure 2-4: Tasks and objects entered in a TOE chart
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This note was uploaded on 03/05/2010 for the course CIS 2656 taught by Professor Marvpelot during the Winter '08 term at Oakland CC.

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ch02 - Microsoft Visual Basic 2008: Reloaded Third Edition...

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