Получить результат функции!!!

SqlConnection conn=new SqlConnection("Initial Catalog=test;Data Source=localhost;User Id=test;password=test;");
			conn.Open();
			SqlCommand cmd= new SqlCommand();
			cmd.CommandText="dbo.test112";
			cmd.CommandType = CommandType.StoredProcedure;
			cmd.Connection=conn;
			SqlParameter parm = cmd.Parameters.Add("RETURN_VALUE", SqlDbType.Int);
			parm.Direction = ParameterDirection.ReturnValue;
			cmd.ExecuteNonQuery();
			System.Console.WriteLine(parm.Value);