using System;

using System.Xml;

using System.Linq;

using System.Xml.Linq;

using System.Collections.Generic;

using System.Linq;

using System.Linq.Expressions;

​

public class Program

{

    public static void Main()

    {

        string[] NameArray = new string[]

        {

        "Joe", "Allen", "Martin", "Gill", "anne"

        }

​

        ;

        var result = NameArray.Where(x => x.StartsWith("a", StringComparison.OrdinalIgnoreCase));

        foreach(var item in result)

         Console.WriteLine(item);

    }

}