将RawRecord包含在从CsvHelper GetRecords返回的动态对象中

Question

我通过使用Configuration.RegisterClassMap转换为Class对象时，可以进行此工作（本质上是将row.Context.RawRecord映射到我的Class上名为RawRecord的属性上：]

public sealed class RecordMap : ClassMap<CsvRecord>
{
    public RecordMap()
    {
        AutoMap(CultureInfo.CurrentCulture);
        Map(m => m.RawRecord).ConvertUsing(row => row.Context.RawRecord.Replace("\r\n", ""));
    }
}

...但是我想摆脱使用类对象（在此示例中为CsvRecord），而是将动态对象与csv.GetRecords<dynamic>()一起使用。这对我来说是有效的，除了我无法确定如何获得RawRecord。理想情况下，如果我可以添加一些配置以简单地将其添加为动态对象上的新列，但找不到类似的内容。

我正在使用linq来构建域对象（Individuals）列表，其中包括对CSV行进行分组，所以我不想手动遍历每条记录：

using (var csv = new CsvReader(reader, CultureInfo.CurrentCulture))
{
    csv.Configuration.PrepareHeaderForMatch = (string header, int index) => Regex.Replace(header, "[^A-Za-z0-9]", "");

    var dateUpdated = DateTime.UtcNow;
    var individuals = csv.GetRecords<dynamic>().ToList().Where(r => r.GroupType == "Individual").
        GroupBy(r => r.GroupID).
        Select(g => new Individual(
            // Include constructor arguments here
            g.Key,
            g.First().Name1
            // ...
            // Include an array of all raw CSV records that have been used to generate this object
            // This currently fails
            g.Select(r => r.RawRecord).Cast<string>().ToArray()
        )).ToList();
}

Answer 1

using (var csv = new CsvReader(reader, CultureInfo.CurrentCulture))
{
    csv.Configuration.PrepareHeaderForMatch = (string header, int index) => Regex.Replace(header, "[^A-Za-z0-9]", "");

    csv.Read();
    csv.ReadHeader();

    var records = new List<dynamic>();

    while (csv.Read())
    {
        var record = csv.GetRecord<dynamic>();
        record.RawRecord = csv.Context.RawRecord.Replace("\r\n", "");
        records.Add(record);
    }

    var dateUpdated = DateTime.UtcNow;
    var individuals = records.Where(r => r.GroupType == "Individual").
        GroupBy(r => r.GroupID).
        Select(g => new Individual(
            // Include constructor arguments here
            g.Key,
            g.First().Name1
            // ...
            // Include an array of all raw CSV records that have been used to generate this object
            // This currently fails
            g.Select(r => r.RawRecord).Cast<string>().ToArray()
        )).ToList();
}