为什么CsvHelper收到标头丢失错误？

Question

我想将带有标题的列表保存到csv文件中，然后再读回。

但是我需要DateTimes来显示毫秒数。

我可以通过更改区域性来写它。但是我在读取时遇到了缺少的Header错误。

private class TradeData
{
    public string Symbol { get; set; }
    public DateTime utcDT { get; set; }
    public int SignedAmount { get; set; }
    public double MidPrice { get; set; }
    public double BidPrice { get; set; }
    public double AskPrice { get; set; }
}

private static List<TradeData> Trades = new List<TradeData>();

public static void WriteIt()
{
    using (var writer = new StreamWriter(Path.Combine(jobDirectoryPath, runName, "TickTraderSim7.csv")))
    using (var csv = new CsvWriter(writer))
    {
        var myCI = CultureInfo.GetCultureInfo("en-US");
        CultureInfo myCIclone = (CultureInfo)myCI.Clone();
        myCIclone.DateTimeFormat.ShortDatePattern = "yyyy-MM-dd";
        myCIclone.DateTimeFormat.LongTimePattern = "HH:mm:ss.ffffff";
        csv.Configuration.CultureInfo = myCIclone;
        csv.WriteRecords(Trades);
    }
}

public static void ReadIt()
{
    using (var reader = new StreamReader(Path.Combine(jobDirectoryPath, runName, "TickTraderSim7.csv")))
    using (var csv = new CsvReader(reader))
    {

        var myCI = CultureInfo.GetCultureInfo("en-US");
        CultureInfo myCIclone = (CultureInfo)myCI.Clone();
        myCIclone.DateTimeFormat.ShortDatePattern = "yyyy-MM-dd";
        myCIclone.DateTimeFormat.LongTimePattern = "HH:mm:ss.ffffff";
        csv.Configuration.CultureInfo = myCIclone;
        var x = csv.GetRecords<TradeData>();
        Trades = x.Select(f => (TradeData)f).ToList();
    }
}