using System.Collections.Generic;
using System.Globalization;
public class AllCountries
public void Main(string[] args)
foreach(var val in GetAllCountries())
public string[] GetAllCountries(){ Dictionary<string, string> objDic = new Dictionary<string, string>();
foreach (CultureInfo ObjCultureInfo in CultureInfo.GetCultures(CultureTypes.SpecificCultures))
RegionInfo objRegionInfo = new RegionInfo(ObjCultureInfo.Name);
if (!objDic.ContainsKey(objRegionInfo.EnglishName))
objDic.Add(objRegionInfo.EnglishName, objRegionInfo.TwoLetterISORegionName.ToLower());
var obj = objDic.OrderBy(p => p.Key);
var y = obj.Select(t => t.Key);
