private void detach_EntityNhomChienDiches(EntityNhomChienDich entity)
		{
			this.SendPropertyChanging();
			entity.EntityUser = null;
		}
		private void attach_EntityNhomChienDiches(EntityNhomChienDich entity)
		{
			this.SendPropertyChanging();
			entity.EntityDuAn = this;
		}
	partial void UpdateEntityNhomChienDich(EntityNhomChienDich instance);
	partial void DeleteEntityNhomChienDich(EntityNhomChienDich instance);
	partial void InsertEntityNhomChienDich(EntityNhomChienDich instance);