public PrintPlanViewModel(ISqlData sqlData, MajorModel major)
        {
            _sqlData = sqlData;
            _major   = major;

            if (major != null)
            {
                PrintYearOne   = new BindableCollection <CourseModel>(_sqlData.GetPrintCourses(UserName, major.MajorId, 1));
                PrintYearTwo   = new BindableCollection <CourseModel>(_sqlData.GetPrintCourses(UserName, major.MajorId, 2));
                PrintYearThree = new BindableCollection <CourseModel>(_sqlData.GetPrintCourses(UserName, major.MajorId, 3));

                MajorName = _major.Name;
            }
        }