Argentini.Halide.H3Reader.GetInt64Nullable C# (CSharp) Метод

        public Int64? GetInt64Nullable(string columnName)
        {
            Int64? output = null;

            try
            {
                int ord = (dr_Oledb != null ? dr_Oledb.GetOrdinal(columnName) : dr.GetOrdinal(columnName));

                if (dr_Oledb != null)
                {
                    if (!dr_Oledb.IsDBNull(ord))
                    {
                        output = Convert.ToInt64(dr_Oledb[ord].ToString());
                    }
                }

                else
                {
                    if (!dr.IsDBNull(ord))
                    {
                        output = Convert.ToInt64(dr[ord].ToString());
                    }
                }
            }

            catch (Exception err)
            {
                _lastSqlError = err;
            }

            return output;
        }