将分隔文件读入DataTable的高效函数 [英] Efficient function for reading a delimited file into DataTable

问题描述

我想知道是否有人知道将制表符分隔的文件读入数据表的高效 c# 函数?

I was wondering if anyone knew of an efficient c# function for reading a tab delimited file into a datatable?

谢谢

推荐答案

目前使用的 LINQ 方法 .First() 和 .Skip() 都很容易如果您需要在 .Net 2.0 上使用它，请重新创建

This currently uses the LINQ methods .First() and .Skip() both are easy to recreate if you need to use this on .Net 2.0

//even cooler as an extension method
static IEnumerable<string> ReadAsLines(string filename)
{
    using (var reader = new StreamReader(filename))
        while (!reader.EndOfStream)
            yield return reader.ReadLine();
}

static void Main()
{
    var filename = "tabfile.txt";
    var reader = ReadAsLines(filename);

    var data = new DataTable();

    //this assume the first record is filled with the column names
    var headers = reader.First().Split('	');
    foreach (var header in headers)
        data.Columns.Add(header);

    var records = reader.Skip(1);
    foreach (var record in records)
        data.Rows.Add(record.Split('	'));
}

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