C# 4.0 如何让FileHelper在每条记录上设置行号？

是否有机会让MultiRecordEngine为每条记录设置行号？ 我阅读了文档，发现引擎有一个LineNumber属性，但找不到使用它的方法

我想要的是： 即。：

---

您可以使用

AfterReadRecord

事件设置LineNumber属性

下面是一个工作示例

public class Employee
{
    [FieldIgnored]
    public int LineNumber; // <-- setup by the engine while reading the file

    [FieldFixedLength(1)]
    public string Type = "2";

    [FieldFixedLength(6)]
    [FieldTrim(TrimMode.Left, "0")]
    public int ID;
}

class Program
{
    static void Main(string[] args)
    {
        var engine = new FileHelperEngine<Employee>();
        engine.AfterReadRecord += engine_AfterReadRecord;
        Employee[] records = engine.ReadString("2000003" + Environment.NewLine 
                                             + "5000006");

        Employee firstRecord = records[0];
        Assert.AreEqual(1, firstRecord.LineNumber);
        Assert.AreEqual("2", records[0].Type);
        Assert.AreEqual(3, records[0].ID);

        Employee secondRecord = records[1];
        Assert.AreEqual(2, secondRecord.LineNumber);
        Assert.AreEqual("5", records[1].Type);
        Assert.AreEqual(6, records[1].ID);

        Console.Read();
    }

    static void engine_AfterReadRecord(EngineBase engine, AfterReadEventArgs<Employee> e)
    {
        e.Record.LineNumber = engine.LineNumber;
    } 
}

公共类员工
{
[字段忽略]
public int LineNumber；//或者，您也可以让您的记录类实现
INotifyRead
，而不是使用
AfterReadRecord
事件。然后所有代码都在FileHelpers类中。谢谢shamp00！您的替代方案更好！谢谢，INotifyRead正是我要搜索的：）。顺便说一句，FieldIgnored已经被忽略了me“FieldHidden”！[FieldIgnored]现在被禁用，请改用[FieldHidden]。
  static void Main(string[] args)
    {

        var engine = new MultiRecordEngine(CustomSelector, _types);
        var obj = engine.ReadFile("order.txt");

        // obj.GetValue(100) returns same record found on the 101th line in the file?
    }

public class Employee
{
    [FieldIgnored]
    public int LineNumber; // <-- setup by the engine while reading the file

    [FieldFixedLength(1)]
    public string Type = "2";

    [FieldFixedLength(6)]
    [FieldTrim(TrimMode.Left, "0")]
    public int ID;
}

class Program
{
    static void Main(string[] args)
    {
        var engine = new FileHelperEngine<Employee>();
        engine.AfterReadRecord += engine_AfterReadRecord;
        Employee[] records = engine.ReadString("2000003" + Environment.NewLine 
                                             + "5000006");

        Employee firstRecord = records[0];
        Assert.AreEqual(1, firstRecord.LineNumber);
        Assert.AreEqual("2", records[0].Type);
        Assert.AreEqual(3, records[0].ID);

        Employee secondRecord = records[1];
        Assert.AreEqual(2, secondRecord.LineNumber);
        Assert.AreEqual("5", records[1].Type);
        Assert.AreEqual(6, records[1].ID);

        Console.Read();
    }

    static void engine_AfterReadRecord(EngineBase engine, AfterReadEventArgs<Employee> e)
    {
        e.Record.LineNumber = engine.LineNumber;
    } 
}