System.Data.Common.DbDataAdapter.ParameterOutput C# (CSharp) Method

        private void ParameterOutput(IDataParameter parameter, DataRow row, DataTableMapping mappings, MissingMappingAction missingMapping, MissingSchemaAction missingSchema)
        {
            if (0 != (ParameterDirection.Output & parameter.Direction))
            {
                object value = parameter.Value;
                if (null != value)
                {
                    // null means default, meaning we leave the current DataRow value alone
                    string columnName = parameter.SourceColumn;
                    if (!string.IsNullOrEmpty(columnName))
                    {
                        DataColumn dataColumn = mappings.GetDataColumn(columnName, null, row.Table, missingMapping, missingSchema);
                        if (null != dataColumn)
                        {
                            if (dataColumn.ReadOnly)
                            {
                                try
                                {
                                    dataColumn.ReadOnly = false;
                                    row[dataColumn] = value;
                                }
                                finally
                                {
                                    dataColumn.ReadOnly = true;
                                }
                            }
                            else
                            {
                                row[dataColumn] = value;
                            }
                        }
                    }
                }
            }
        }