Hello

I am trying to create a new shipping calculator, to do this I've tried to follow the documentation (http://documentation.teacommerce.net/net-api/price-calculators/shipping-calculator/). Ive created a new class (CustomShippingCalculator.cs) in App_Code and then just copied the code from the docs. So this is what I got:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using TeaCommerce.Api.Dependency;
using TeaCommerce.Api.Models;
using TeaCommerce.Api.PriceCalculators;
using TeaCommerce.Api.Services;


namespace TeaCommerce.API.PriceCalculators /*<--- is this correct?*/ { 
  [SuppressDependency( "TeaCommerce.Api.PriceCalculators.IShippingCalculator", "TeaCommerce.Api" )]
  public class CustomShippingCalculator : ShippingCalculator {

    public CustomShippingCalculator( IVatGroupService vatGroupService, ICurrencyService currencyService )
      : base( vatGroupService, currencyService ) {
    }

    protected override decimal CalculatePrice( ShippingMethod shippingMethod, Currency currency, long countryId, long? countryRegionId ) {
      //Estimated shipping price - no order is present
      return 100M;
    }

    protected override decimal CalculatePrice( ShippingMethod shippingMethod, Currency currency, Order order ) {
      //Calculate price based on order
      return 50M;
    }
  }
}

But the freight cost for orders is still the same they where before I added this.. Why doesnt this work? and what should I do to get it to work?