public static void Main()
{
var cart = new ShoppingCart {
Products = new List<Product> {
new Product {Name = "Kayak", Category = "Watersports", Price = 275M},
new Product {Name = "Lifejacket", Category = "Watersports", Price = 48.95M},
new Product {Name = "Soccer ball", Category = "Soccer", Price = 19.50M},
new Product {Name = "Corner flag", Category = "Soccer", Price = 34.95M}
}
};
//query-syntax
var sortedPriceList = from product in cart
orderby product.Price descending
select product.Price;
foreach (var price in sortedPriceList) {
Console.Write(price + ", ");
}
Console.WriteLine();
//dot-notation-syntax
var topThreeprices = cart
.OrderByDescending(product => product.Price)
.Take(3)
.Select(product => product.Price);
foreach (var price in topThreeprices) {
Console.Write(price + ", ");
}
Console.WriteLine();
var namePriceMap = cart
.Select(product => new {
Name = product.Name,
Price = product.Price
});
foreach (var product in namePriceMap) {
Console.Write(product.Name + " : " + product.Price + ", ");
}
Console.WriteLine();
}
public ViewResult UseFilterLINQ()
{
// create and populate Shoppingcart
ShoppingCart cart = new ShoppingCart
{
Products = new List<Product>
{
new Product {Name = "Kayak",Price = 275M, Category = "Watersports" },
new Product {Name = "Lifejacket",Price = 48.95M, Category = "Watersports" },
new Product {Name = "Soccer ball",Price = 19.5M, Category = "Soccer" },
new Product {Name = "Corner flag",Price = 34.95M, Category = "Soccer" }
}
};
var foundProducts = cart.OrderByDescending(e => e.Price)
.Take(3)
.Select(e => new { e.Name, e.Price });
StringBuilder result = new StringBuilder();
foreach (var p in foundProducts)
{
result.AppendFormat("Price: {0:c} ", p.Price);
}
return View("Result", (object)result.ToString());
}
