public virtual IList<TimeRegistration> GetTimeRegistrations()
{
List<TimeRegistration> timeRegistrations = new List<TimeRegistration>();
foreach (Task task in tasks)
{
timeRegistrations.AddRange(task.TimeRegistrations);
}
timeRegistrations.Sort(delegate(TimeRegistration t1, TimeRegistration t2)
{
return t1.Date.CompareTo(t2.Date);
});
return timeRegistrations;
}