using System;

using System.Linq;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        IList<string> strList = new List<string>() { 

                                            "One", 

                                            "Two", 

                                            "Three", 

                                            "Four", 

                                            "Five", 

                                            "Six"  };

​

        var resultList = strList.TakeWhile((s, i) => s.Length > i);

        foreach(string str in resultList)

                Console.WriteLine(str);

​

    }

}