partial void DeleteUserProjectRef(UserProjectRef instance);
 partial void UpdateUserProjectRef(UserProjectRef instance);
		private void detach_UserProjectRefs(UserProjectRef entity)
		{
			this.SendPropertyChanging();
			entity.Project = null;
		}
 partial void InsertUserProjectRef(UserProjectRef instance);
		private void attach_UserProjectRefs(UserProjectRef entity)
		{
			this.SendPropertyChanging();
			entity.Project = this;
		}