CSharp - Reference element index in Select operator

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Introduction

The following code shows how to embed the index that is passed to our selector method into our output sequence's element type.

Demo

using System;
using System.Linq;
using System.Collections;
using System.Collections.Generic;

class Program//from w w w  . j  a  v  a 2  s .c o m
{
    static void Main(string[] args)
    {
          string[] names = {
            "Python", "Java", "Javascript", "Bash", "C++", "Oracle"};
    
          var nameObjs = names.Select((p, i) => new { Index = i, LastName = p });
    
          foreach (var item in nameObjs)
            Console.WriteLine("{0}.  {1}", item.Index + 1, item.LastName);

    }
}

Result

This example will output the index number plus one, followed by the name.

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