private void AddPriceGroupSpecificField(TemplateBuilder builder, PriceGroup priceGroup)
{
ID priceFieldId = priceGroup.SitecoreTemplateFieldId(FieldIds.Product.SectionPricingId);
var priceGroupFieldData = new PriceGroupFieldData {
PriceFieldId = priceFieldId
};
_priceGroupFields[priceGroup.PriceGroupId] = priceGroupFieldData;
builder.CreateNumberField(priceFieldId, GetPriceGroupName(priceGroup), 1, new List <KeyValuePair <string, string> >());
}