partial void DeleteAssociation(Association instance);
 partial void UpdateAssociation(Association instance);
		private void detach_Associations(Association entity)
		{
			this.SendPropertyChanging();
			entity.Association1 = null;
		}
 partial void InsertAssociation(Association instance);
		private void attach_Associations(Association entity)
		{
			this.SendPropertyChanging();
			entity.Association1 = this;
		}