private void detach_EntityThongTinDuAns(EntityThongTinDuAn entity)
		{
			this.SendPropertyChanging();
			entity.EntityDuAn = null;
		}
		private void attach_EntityThongTinDuAns(EntityThongTinDuAn entity)
		{
			this.SendPropertyChanging();
			entity.EntityDanhMuc = this;
		}
	partial void UpdateEntityThongTinDuAn(EntityThongTinDuAn instance);
	partial void DeleteEntityThongTinDuAn(EntityThongTinDuAn instance);
	partial void InsertEntityThongTinDuAn(EntityThongTinDuAn instance);