/// <summary>
/// Adds a <see cref="IProductVariant"/> line item to the collection
/// </summary>
/// <param name="container">
/// The container.
/// </param>
/// <param name="productVariant">
/// The product Variant.
/// </param>
/// <param name="quantity">
/// The quantity.
/// </param>
/// <param name="extendedData">
/// The extended Data.
/// </param>
public static void AddItem(this ILineItemContainer container, IProductVariant productVariant, int quantity, ExtendedDataCollection extendedData)
{
extendedData.AddProductVariantValues(productVariant);
container.AddItem(LineItemType.Product, productVariant.Name, productVariant.Sku, quantity, productVariant.Price, extendedData);
}
