SQL压缩数据库消息的返回问题

var conn = new SqlConnection("");
conn.InfoMessage += new SqlInfoMessageEventHandler(conn_InfoMessage);
using (var cmd = conn.CreateCommand())
{
    cmd.CommandText = "Print 1";
    cmd.ExecuteNonQuery();
}

        void conn_InfoMessage(object sender, SqlInfoMessageEventArgs e)
        {
            MessageBox.Show(e.Message); 
        }

 SqlCommand cmd = CreateSqlComand(CommandText, ParamValues, Conn);
            cmd.Connection.Open();
            string r = "";
            if (cmd != null)
            {
                SqlDataReader sr = cmd.ExecuteReader();
                while (sr.Read())
                {
                    for (int i = 0; i < sr.FieldCount; i++)
                    {
                        r += i + "." + sr[i].ToString() + "|";
                    }
                }
            }
            cmd.Connection.Close();
            return r;