public ViewResult AutoProperty()
{
Product myProduct = new Product();
myProduct.Name = "Kayak";
string productName = myProduct.Name;
return View("Result", (object)String.Format("Product name: {0}", productName));
}
public ViewResult CreateProduct()
{
// create and populate a new Product object
Product myProduct = new Product
{
ProductId = 100,
Name = "Kayak",
Description = "A boat for one person",
Price = 275M,
Category = "Watersports"
};
return View("Result", (object)String.Format("Category: {0}, Price: {1}", myProduct.Category, myProduct.Price));
}
public ViewResult FindProducts()
{
Product[] products =
{
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}
};
// 1 - Without LINQ
// define the array to hold the results
Product[] foundProducts = new Product[3];
// sort the contents of the array
Array.Sort(products, (item1, item2) =>
{
return Comparer<decimal>.Default.Compare(item2.Price, item1.Price);
});
// get the first three items in the array as the results
Array.Copy(products, foundProducts, 3);
// create the result
StringBuilder result1 = new StringBuilder();
foreach (Product p in foundProducts)
{
result1.AppendFormat("Price: {0} ", p.Price);
}
// 2 - With LINQ query syntax
var foundProducts2 = from match in products
orderby match.Price descending
select new
{
match.Name,
match.Price
};
// create the result
int count = 0;
StringBuilder result2 = new StringBuilder();
foreach (var p in foundProducts2)
{
result2.AppendFormat("Price: {0} ", p.Price);
if (++count == 3)
{
break;
}
}
// 2 - With LINQ dot-notation syntax
var foundProducts3 = products.OrderByDescending(e => e.Price)
.Take(3)
.Select(e => new {
e.Name,
e.Price
});
StringBuilder result3 = new StringBuilder();
foreach (var p in foundProducts3)
{
result3.AppendFormat("Price: {0} ", p.Price);
}
// Deferred LINQ
var foundProducts4 = products.OrderByDescending(e => e.Price)
.Take(3)
.Select(e => new
{
e.Name,
e.Price
});
// Non-deferred LINQ
var result5 = products.Sum(e => e.Price);
products[2] = new Product { Name = "Stadium", Price = 79600M };
StringBuilder result4 = new StringBuilder();
foreach (var p in foundProducts4)
{
result4.AppendFormat("Price: {0} ", p.Price);
}
return View("Result", (object)String.Format("{0} --- {1} --- {2} --- {3} --- {4}", result1, result2, result3, result4, result5));
}