public List <Trainees> UpdateTrainee(Trainees updatedTrainee)
{
var deletingTrainee = trainees.Find(t => t.TraineeId == updatedTrainee.TraineeId);
if (deletingTrainee == null)
{
trainees.Add(updatedTrainee);
}
else
{
trainees.Remove(deletingTrainee);
trainees.Add(updatedTrainee);
}
return(trainees);
//throw new NotImplementedException();
}
public List <Trainees> AddTraniee(Trainees addNewTrainee)
{
trainees.Add(addNewTrainee);
return(trainees);
}