partial void DeleteSystemlog(Systemlog instance);
 partial void UpdateSystemlog(Systemlog instance);
		private void detach_Log(Systemlog entity)
		{
			this.SendPropertyChanging();
			entity.User = null;
		}
 partial void InsertSystemlog(Systemlog instance);
		private void attach_Log(Systemlog entity)
		{
			this.SendPropertyChanging();
			entity.User = this;
		}