public void AddTask(AbstractTask task)
{
if (_tasks.Count == TasksCount)
{
throw new InvalidOperationException("tasks capacity reached");
}
if (!task.CanBeAssignedToSelf)
{
throw new InvalidOperationException("this type of task can't be assigned");
}
_tasks.Add(task);
}
public void RemoveTask(AbstractTask task)
{
_tasks.Remove(task);
}