Inheritance: INotifyPropertyChanging, INotifyPropertyChanged
 partial void DeleteAssignable(Assignable instance);
 partial void UpdateAssignable(Assignable instance);
		private void detach_Assignables(Assignable entity)
		{
			this.SendPropertyChanging();
			entity.Assignable1 = null;
		}
 partial void InsertAssignable(Assignable instance);
		private void attach_Assignables(Assignable entity)
		{
			this.SendPropertyChanging();
			entity.Assignable1 = this;
		}