public GradesSection GetGradesSection(ClassWP c)
        {
            string        fileName = Files.GRADE_FILE(_localAccountId, c.Identifier);
            GradesSection section  = GradesSections.FirstOrDefault(i => i.FileName.Equals(fileName));

            if (section == null)
            {
                section = new GradesSection(this, fileName, c);
                GradesSections.Add(section);
            }

            return(section);
        }
 public GradesSection(AccountSection accountSection, string fileName, ClassWP c)
     : base(fileName, accountSection)
 {
     _accountSection = accountSection;
     _class          = c;
 }