First, create your information object. For example :

    public class Person : DotNetNuke.Entities.Modules.IHydratable {
        public int PersonID { get; set; }
        public string FirstName { get; set; }
        public string LastName { get; set; }

        #region IHydratable Members

        public void Fill(IDataReader dr) {
            PersonID = Convert.ToInt32(dr["PersonID"]);
            FirstName = dr["FirstName"].ToString();
            LastName = dr["LastName"].ToString();
        }

        public int KeyID {
            get {
                return PersonID;
            }
            set {
                PersonID=value;
            }
        }

        #endregion
    }

Then, you can using CBO class like below :

CBO.FillCollection<PersonInfo>(SqlHelper.ExecuteReader(ConnectionString, CommandType.StoredProcedure, "usp_YourSP", "params_if_any"));

It's much simpler and fast.

HTH.

Thanks Michael