n Chapter 6, Programming Challenge 4, you were asked to create an application that calculates charges for an automotive repair company. A significant drawback to the design of that program was that it was not expandable—you are limited to only the number of options that can easily fit on a single form. Real-world applications usually require a great deal of input selections, leading to the use of separate windows to get different types of input. In this Programming Challenge, you will create a separate form, such as the one shown in Figure 7-78, to get the user’s oil and lubrication services selections. Notice that the price of each service is included in the Text property of each CheckBox control. Oil changes are now divided into two types: Crankcase oil and transmission oil. In the form shown in Figure 7-78, the user has selected two checkboxes and clicked the Confirm Selections button. Notice that a confirmation message containing the price appears on the status line. The message also instructs the user that he or she may now close the form. Upon returning to the application’s main form, shown in Figure 7-79, the button caption has been updated to show the cost of the lubrication services previously selected by the user. If the user clicks the Clear button, you need to reset the caption of the oil and lubrication services button to its starting value (with no price). One of the concepts we demonstrate in this application is that button captions may be altered at runtime to give more information to users. It would be possible to use dialog windows to collect user input for each of the other service categories, but doing so would require lots of work. Instead, you will use a dialog window for only the oil and lubrication services category. Suggestion: You will find it easiest to move some classlevel variables and constants to a global code module so that they may be accessed from both the startup form and the Oil and Lubrication Services form
TG Automotive with Dialog Window
In Chapter 6, Programming Challenge 4, you were asked to create an application
that calculates charges for an automotive repair company. A significant drawback
to the design of that program was that it was not expandable—you are limited to
only the number of options that can easily fit on a single form. Real-world applications usually require a great deal of input selections, leading to the use of separate
windows to get different types of input. In this Programming Challenge, you will
create a separate form, such as the one shown in Figure 7-78, to get the user’s oil
and lubrication services selections. Notice that the price of each service is included
in the Text property of each CheckBox control.
Oil changes are now divided into two types: Crankcase oil and transmission oil. In
the form shown in Figure 7-78, the user has selected two checkboxes and clicked the
Confirm Selections button. Notice that a confirmation message containing the price
appears on the status line. The message also instructs the user that he or she may now
close the form. Upon returning to the application’s main form, shown in Figure 7-79,
the button caption has been updated to show the cost of the lubrication services previously selected by the user. If the user clicks the Clear button, you need to reset the
caption of the oil and lubrication services button to its starting value (with no price).
One of the concepts we demonstrate in this application is that button captions may
be altered at runtime to give more information to users.
It would be possible to use dialog windows to collect user input for each of the other
service categories, but doing so would require lots of work. Instead, you will use a
dialog window for only the oil and lubrication services category. Suggestion: You
will find it easiest to move some classlevel variables and constants to a global code
module so that they may be accessed from both the startup form and the Oil and
Lubrication Services form
made in visual basic 2017 please include pictures
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