FileHelpers 在字段中引用和逗号答案

【问题标题】：FileHelpers quote and comma in fieldsFileHelpers 在字段中引用和逗号
【发布时间】：2017-03-23 11:24:02
【问题描述】：

我有一个使用 FileHelpers 解析的 csv 文件，但我遇到了一个字段中同时出现引号和逗号的情况：

逗号：

323,"PC","28/02/2014","UNI001","5000",0,"Return","Returned Goods, damaged",88.00,15.40,"T1","N",0.00,"R","-",

引用

 148,"SI","13/01/2014","CGS001","4000",1,"5","17" Monitor",266.00,45.39,"T1","Y",311.39,"R","-",

我的班级是：

[DelimitedRecord(",")]
public class Transaction
{
    public int TRAN_NUMBER;
    [FieldQuoted('"', QuoteMode.OptionalForBoth)]
    public string TypeText;
    [FieldQuoted('"', QuoteMode.OptionalForBoth)]
    public string DATE;
    [FieldQuoted('"', QuoteMode.OptionalForBoth)]
    public string TransactionAccount;
    [FieldQuoted('"', QuoteMode.OptionalForBoth)]
    public string NOMINAL_CODE;

    public int DEPT_NUMBER;

    [FieldQuoted('"', QuoteMode.OptionalForBoth)]
    public string INV_REF;

    [FieldQuoted('"', QuoteMode.OptionalForBoth)]
    public string DETAILS;

    public string NET_AMOUNT;
    public string TAX_AMOUNT;
    [FieldQuoted('"', QuoteMode.OptionalForBoth)]
    public string TaxCodeName;
    [FieldQuoted('"', QuoteMode.OptionalForBoth)]
    public string PAID_FLAG;

    public string AMOUNT_PAID;

    [FieldQuoted('"', QuoteMode.OptionalForBoth)]
    public string VatReconText;
    [FieldQuoted('"', QuoteMode.OptionalForBoth)]
    public string BankReconText;

    public string RECON_DATE;
}

我找到了这个帖子 FileHelpers nested quotes and commas - parsing error

engine.BeforeReadRecord += (sender, args) => 
args.RecordLine = args.RecordLine.Replace(@"""", "'");

但它只有助于引号出现问题，而不是逗号。

这两个问题都可以通过 FileHelpers 解决还是我应该寻找替代解决方案？

【问题讨论】：

我自己解决这个问题的方法是解析成行，然后如果行不满足所需的字段数，+下面的行等等。

标签： c# comma double-quotes filehelpers

【解决方案1】：

您可以实施BeforeReadRecord 事件来“修复”您的坏行。

FileHelperEngine engine = new FileHelperEngine<Transaction>(); 
engine.BeforeReadRecord += BeforeEvent; 

private void BeforeEvent(EngineBase engine, BeforeReadRecordEventArgs e)
{
    var line = e.RecordLine;

    // you have to write the following replacement routine...
    var fixedLine = ReplaceEmbeddedCommasAndQuotesWithSomethingDifferent(line); 

    e.RecordLine = fixedLine; // replace the line with the fixed version
}

并且在您阅读了其中的记录之后，您可以对其进行处理以逆转替换过程来修复它们。

如果您喜欢在 FileHelpers 类本身中定义所有逻辑，您可以实现 INotifyRead<Transaction> 而不是使用事件。

【讨论】：