private ICollection <Product> FindTopProductsByPrice(OrderedBag <Product> productList, double startPrice, double endPrice)
{
var firstProductStartPrice = productList.FirstOrDefault(x => x.Price >= startPrice);
var lastProductEndPrice = productList.LastOrDefault(x => x.Price <= endPrice);
var productsInRange = productList.Range(firstProductStartPrice, true, lastProductEndPrice, true);
var firstgivenProductsInRange = productsInRange.Take(ProductsInRangeCount);
return(firstgivenProductsInRange.ToList());
}
static IEnumerable<Product> GetProductsByPriceRange(OrderedBag<Product> products, decimal from, decimal to, int count)
{
var result = products.Range(
products.FirstOrDefault(x => x.Price >= from),
true,
products.LastOrDefault(x => x.Price <= to),
true).Take(count);
return result;
}