public void MarkAttendance(List <List <BCAttendance> > Class, List <BCTeacherSubject> teacher, DateTime date, int classId)
{
int index = 0;
List <BCAttendance> masterList = new List <BCAttendance>();
foreach (List <BCAttendance> attendance in Class)
{
int id = teacher[index].BCTeacherSubjectId;
foreach (BCAttendance status in attendance)
{
status.BCTeacherSubjectId = id;
status.Date = date;
masterList.Add(status);
}
index++;
}
masterList = masterList.Where(a => a.BCTeacherSubjectId != 0).ToList();
_attendanceRepo.AddAttendance(masterList);
}