partial void DeleteEntityDuAnFeature(EntityDuAnFeature instance);
	partial void UpdateEntityDuAnFeature(EntityDuAnFeature instance);
		private void detach_EntityDuAnFeatures(EntityDuAnFeature entity)
		{
			this.SendPropertyChanging();
			entity.EntityDuAn = null;
		}
	partial void InsertEntityDuAnFeature(EntityDuAnFeature instance);
		private void attach_EntityDuAnFeatures(EntityDuAnFeature entity)
		{
			this.SendPropertyChanging();
			entity.EntityDanhMuc = this;
		}