private bool FilterChildren(NullableFKChild entity) { return (entity.ParentID == this.ID); }
private void AttachChildren(NullableFKChild entity) { entity.Parent = this; }
private void DetachChildren(NullableFKChild entity) { entity.Parent = null; }
private bool FilterChild(NullableFKChild entity) { return (entity.ParentID_Singleton == this.ID); }