using System;

using System.IO;

using System.Data;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        DataTable datatable = new DataTable();

        StreamReader streamreader = new StreamReader(@"C:\Temp\txt.txt");

        char[] delimiter = new char[] { '\t' };

        string[] columnheaders = streamreader.ReadLine().Split(delimiter);

        foreach (string columnheader in columnheaders)

        {

            datatable.Columns.Add(columnheader); // I've added the column headers here.

        }

​

        while (streamreader.Peek() > 0)

        {

            DataRow datarow = datatable.NewRow();

            datarow.ItemArray = streamreader.ReadLine().Split(delimiter);

            datatable.Rows.Add(datarow);

        }

​

        Console.writeLine(datatable.Rows.Count();

        Console.ReadLine();

    }

}