public void AnnounceNewTraining(string trainingName, int duration, DateTime start)
{
if (trainingName == null)
{
throw new ArgumentNullException($"{nameof(trainingName)}");
}
ManagementSystem.AddTraining(trainingName, duration, start, this);
}
/// <summary>
/// Training is closed after all students get their marks
/// </summary>
public void CloseTraining(Training training)
{
Random r = new Random();
training.IsClosed = true;
foreach (var student in training.GetStudents())
{
AssignAGradeTo(student, (byte)r.Next(1, 11));
}
ManagementSystem.AddTrainingToArchive(training);
}