private void detach_EntityNoiDungLinks(EntityNoiDungLink entity)
		{
			this.SendPropertyChanging();
			entity.EntityDuAn = null;
		}
	partial void UpdateEntityNoiDungLink(EntityNoiDungLink instance);
	partial void DeleteEntityNoiDungLink(EntityNoiDungLink instance);
	partial void InsertEntityNoiDungLink(EntityNoiDungLink instance);