partial void DeleteNag(Nag instance);
 partial void UpdateNag(Nag instance);
		private void detach_Nags(Nag entity)
		{
			this.SendPropertyChanging();
			entity.Login = null;
		}
 partial void InsertNag(Nag instance);
		private void attach_Nags(Nag entity)
		{
			this.SendPropertyChanging();
			entity.Login = this;
		}