Computer Programming Concepts and Visual Basic David I. Schneider

13. Additional forms serve as new windows or dialog boxes. They are revealed with
the Show method and concealed with the Hide method.
14. Common dialog boxes provide a standard way of specifying files, colors, and
fonts, and of communicating with the printer.
PROGRAMMING PROJECTS
1. Membership List. Write a menu-driven program to manage a membership list.
(See the following Membership List form.) Assume that the names and phone
numbers of all members are stored in the sequential file MEMBERS.TXT. The
names should be read into the list box when the form is loaded and the phone
numbers should be read into an array. When a name is highlighted, both the
name and phone number of the person should appear in the text boxes at the
bottom of the screen. To delete a person, highlight his or her name and click on
the Delete menu item. To change either the phone number or the spelling of the
person’s name, make the corrections in the text boxes and click on the menu
item Modify. To add a new member, type his or her name and phone number
into the text boxes and click on the menu item Add. When Exit is clicked, the
new membership list should be written to a file and the program should
terminate.
2. Grade Book. Write a comprehensive program that a professor could use to
record student grades for several classes and save the records in sequential files.
(See the preceding Class Grades form.) Each class has three hourly exams and
a final exam. The file for a single class should consist of the number of students
in the class, call it n, and a record of five fields (name, grade1, grade2, grade3,
final) for each student, with the records ordered alphabetically by the student’s
name. (A typical name might appear as “Doe, John”.) Initially, the four grade
fields should contain zeros. The program should contain a top-level menu item,
File, with second-level subitems for Open, Save, Add Student, Remove Student.
When a file is opened (via a file list directory or common dialog box), the data
for the students should be loaded into a grid of n + 1 rows and 7 columns. (The
last two columns should remain blank.) The professor should be able to enter
(or alter) exam data by clicking on the cell and responding to an input box.
When a student is added, the grid should be enlarged by one row and the student
inserted in proper alphabetical position. When a student is deleted, the grid
should be reduced by one row. When the Calculate Semester Grades button is
clicked, the last two columns should be filled in by the program. (Assume that
the final exam counts as two hour exams.) If a grade is changed after the last
Programming Projects 317