An example on how to use the GrandTrunk currency conversion Web Service C# API

CSharp_GrandTrunkCurrencyConversionApi_Example.cs

using System;
using System.Collections.Generic;
using IsKernel.Api.Pool.Currency;

namespace GrandTrunkCurrenciesApiExample
{
  class Program
    {       
        public static void Main(string[] args)
        {
            DateTime olderDate = new DateTime(1997,3,1);
            DateTime startDate = new DateTime(2011,3,1);
            DateTime stopDate  = new DateTime(2011,5,1);

            //List of supported currencies at this momment
            Console.WriteLine("List of supported currencies at this moment: ");     
            List<string> listOfCurrencies
                = GrandTrunkCurrencyConversionService
                 .Instance.GetListOfSupportedCurrencies();
            DisplayList(listOfCurrencies);

            //List of supported currencies in 01-03-1997
            Console.WriteLine("List of supported currencies in 01-03-1997: ");
            List<string> olderListOfCurrencies
                = GrandTrunkCurrencyConversionService
                 .Instance.GetListOfSupportedCurrencies(olderDate);
            DisplayList(olderListOfCurrencies);

            //The USD (US Dollar) - AUD (Australian Dollar) rate today
            Console.WriteLine("The USD-AUD rate today");
            ConversionRate usdToAud = GrandTrunkCurrencyConversionService
                                      .Instance
                                      .GetConversionRate("USD","AUD");
            Console.WriteLine("In {0} : 1 {1} = {3} {2}",
                              usdToAud.Date, 
                              usdToAud.FromCurrency,
                              usdToAud.ToCurrency,
                              usdToAud.Rate);

            //The USD (US Dollar) - AUD (Australian Dollar) rate in 01-03-1997
            Console.WriteLine("The USD-AUD rate in 01-03-1997");
            ConversionRate olderUsdToAud = GrandTrunkCurrencyConversionService
                                          .Instance
                                          .GetConversionRate("USD","AUD", 
                                                             olderDate);
            Console.WriteLine("In {0} : 1 {1} = {3} {2}",
                              olderUsdToAud.Date, 
                              olderUsdToAud.FromCurrency,
                              olderUsdToAud.ToCurrency,
                              olderUsdToAud.Rate);

            //The USD (US Dollar) - AUD (Australian Dollar) rate between 
            //01.03.2011 - 01.05.2011
            Console.WriteLine("The USD-AUD rate between 01-03-2011 and " +
                              "01-05-2011");
            List<ConversionRate> conversionRateList
                = GrandTrunkCurrencyConversionService.Instance
                  .GetConversionRate("USD","AUD", startDate, stopDate);
            DisplayConversionList(conversionRateList);

            Console.Read();
        }

        private static void DisplayList(List<string> list)
        {
            foreach (string element in list) 
            {
                Console.WriteLine(element);
            }
        }

        private static void DisplayConversionList(List<ConversionRate> list)
        {
            foreach (ConversionRate element in list) 
            {
                Console.WriteLine("In {0} : 1 {1} = {3} {2}",
                                  element.Date, 
                                  element.FromCurrency,
                                  element.ToCurrency,
                                  element.Rate);
            }
        }
    }
}