finish adding menu item
finished calling CAboutDlg.
understanded that how to load menu and bind a menu item with a dialog.
added 3 property page
implemented property sheet with three property page, but useless.
removed property page and property sheet
added 3 tabs and 3 dialogs
bugs in sending message from one dialog to another.
change listbox to listctrl, but the listctrl doesn't work well and cannot add columns.
1. move UserMessage to Utilities.
2. bugs in DialogStudents(cast Student to UndergraduateStudent or GraduateStudent).
3. chanege deconstructor in Student to virtual.
add view student info and delete student
fixed bugs in viewing DialogStudentInfo
adding add Student, but having bugs
update UnitTestAllStudents
bug in m_checkBoxMan of DialogStudentInfo is resolved.
add Update Student Info, but updating message doesn't work(possbile reasion: cannot get parent HWND).
add LoadData() and DoDataInit() in DialogClasses.
add LoadData() add DoDataInit() in DialogCourses.
add info dialog for class and course.
update Viewing and Editing mode for DialogCourseInfo.
update Viewing and Editing mode for DialogClassInfo.