Give each row in a list an ID

Question

I'm trying to create a timetables.txt from other files, and I have this so far.

static void Main(string[] args)
    {
        string Routes = @"C:\Users\peepee poopoo\gtfs\routes.txt";

        var column1 = new List<string>();
        var column2 = new List<string>();
        using (var rd = new StreamReader(Routes))
        {
            while (!rd.EndOfStream)
            {
                var splits = rd.ReadLine().Split(',');
                column1.Add(splits[0]);
                column2.Add(splits[1]);
            }
        }

        // print column1
        Console.WriteLine("Column 1:");
        foreach (var element in column1)
            Console.WriteLine(element);

        // print column2
        Console.WriteLine("Column 2:");
        foreach (var element in column2)
            Console.WriteLine(element);
    }

However, I need the first column of every row in the list to have a number that just counts up from 1. How can I do this?

Answer 1

Just see the code written below and add it.

var dictionary = new Dictionart<string, string>();
    using (var rd = new StreamReader(Routes))
    {
        while (!rd.EndOfStream)
        {
            var splits = rd.ReadLine().Split(',');
            dictionary.Add(splits[0], splits[1]);
        }
    }

    foreach(var item in dictionary)
    {
       Console.WriteLine(item.Key + "\t" + item.Value);
    }