partial void DeletetComment(tComment instance);
 partial void UpdatetComment(tComment instance);
		private void detach_tComments(tComment entity)
		{
			this.SendPropertyChanging();
			entity.tUser = null;
		}
 partial void InserttComment(tComment instance);
		private void attach_tComments(tComment entity)
		{
			this.SendPropertyChanging();
			entity.tUser = this;
		}