public string InsertLearner(Person student)
 {
     try
     {
         digitalContext = new DigitalEntities();
         digitalContext.People.Add(student);
         digitalContext.SaveChanges();
         return student.FirstName + "was successfully added";
     }
     catch (Exception ex)
     {
         return "Learner not Added" + ex.Message;
     }
 }
 public string MasterRecord(AttendanceMaster master)
 {
     try
     {
         digitalContext = new DigitalEntities();
         digitalContext.AttendanceMasters.Add(master);
         digitalContext.SaveChanges();
          return "You signed";
     }
     catch (Exception ex)
     {
         return "Register was not signed, Please try again" + ex.Message;
     }
 }
 public string SignRegister(AttendanceDetail detail)
 {
     try
     {
         digitalContext = new DigitalEntities();
         digitalContext.AttendanceDetails.Add(detail);
         digitalContext.SaveChanges();
             return "You signed";                
     }
     catch (Exception )
     {
         return null;
     }
 }
        public string InsertMentor( Person mentor)
        {
            try
            {
                digitalContext = new DigitalEntities();
                digitalContext.People.Add(mentor);
                digitalContext.SaveChanges();
                return mentor.FirstName + " " + " was successfully added";
            }
            catch (Exception ex)
            {

                return "Mentor not added" + ex.Message;
            }
        }
 public string DeleteLearner(int id)
 {
     try
     {
         digitalContext = new DigitalEntities();
         Person student = digitalContext.People.Find(id);
         digitalContext.People.Attach(student);
         digitalContext.People.Remove(student);
         digitalContext.SaveChanges();
         return student.FirstName + "was successfully Deleted";
     }
     catch (Exception )
     {
         return "Learner not deleted" ; 
     }
 }