private void Init()
{
this.SubTasks = new ObservableCollection <MyTask>();
this.Id = KeyGenerator.CreateIntegerKey(this);
this.CreateTime = DateTime.Now;
this.Status = TaskStatus.ToDo;
//this.SubTasks = new List<MyTask>();
}
private MyProject()
{
this.CreateTime = DateTime.Now;
this.Id = KeyGenerator.CreateIntegerKey(this).ToString();
}