public static string TextIt(this ProductClass p)
{
return(p.Name
+ " Which comes in quantities of "
+ p.Quantity
+ " has a unit price of "
+ p.UnitPrice);
}
static void Main(string[] args)
{
ProductClass[] prods = CreateProducts();
//----------------------------------------------------
ProductClass beer = Array.Find(prods, FindBeer);
Console.WriteLine(beer.TextIt());
ProductClass beer1 = Array.Find(prods,
delegate(ProductClass p)
{
return(p.Name == "Beer");
});
Console.WriteLine(beer1.TextIt());
ProductClass beer2 = Array.Find(prods,
p =>
{
return(p.Name == "Beer");
});
Console.WriteLine(beer2.TextIt());
ProductClass beer3 = Array.Find(prods, p => p.Name == "Beer");
Console.WriteLine(beer3.TextIt());
//-----------------------------------------------------
var prodsFiltered = prods.Where(p =>
{
string temp = p.Name.ToLower();
return(temp.StartsWith("z"));
});
foreach (ProductClass p in prodsFiltered)
{
Console.WriteLine(p.TextIt());
}
//-------------------------------------------------
Action <int> printNumber = x => Console.WriteLine(x);
printNumber(23);
Program.printNumber(22);
}
private static ProductClass[] CreateProducts()
{
ProductClass[] prods = new ProductClass[]
{
new ProductClass {
Name = "Displayport Adapter", Quantity = 1, UnitPrice = 25.50m
},
new ProductClass {
Name = "Beer", Quantity = 12, UnitPrice = 10.99m
},
new ProductClass {
Name = "Z-Wave USB Controller", Quantity = 1, UnitPrice = 49.99m
},
new ProductClass {
Name = "ZigBee Plugwise Starter Kit", Quantity = 1, UnitPrice = 209.00m
},
};
return(prods);
}
static bool FindBeer(ProductClass p)
{
return(p.Name == "Beer");
}