AJH.CMS.Core.Data.TaxDataMapper.GetTaxes C# (CSharp) Method

        internal static List<Tax> GetTaxes(int portalID)
        {
            List<Tax> colTaxs = null;
            Tax Tax = null;

            using (SqlConnection sqlConnection = new SqlConnection(CMSCoreBase.CMSCoreConnectionString))
            {
                SqlCommand sqlCommand = new SqlCommand(SN_TAX_GET_ALL, sqlConnection);
                sqlCommand.CommandType = System.Data.CommandType.StoredProcedure;

                SqlParameter sqlParameter = new SqlParameter();
                sqlParameter = new SqlParameter(PN_TAX_PORTAL_ID, System.Data.SqlDbType.Int);
                sqlParameter.Direction = System.Data.ParameterDirection.Input;
                sqlParameter.Value = portalID;
                sqlCommand.Parameters.Add(sqlParameter);

                sqlCommand.Connection.Open();
                using (SqlDataReader sqlDataReader = sqlCommand.ExecuteReader(System.Data.CommandBehavior.CloseConnection))
                {
                    colTaxs = new List<Tax>();
                    while (sqlDataReader.Read())
                    {
                        Tax = GetTax(colTaxs, sqlDataReader);
                        FillFromReader(Tax, sqlDataReader);
                    }

                    sqlDataReader.Close();
                    sqlCommand.Connection.Close();
                }
            }
            return colTaxs;
        }