public int Compare(object x, object y)
{
Product_csh1 first = (Product_csh1)x;
Product_csh1 second = (Product_csh1)y;
return(first.Name.CompareTo(second.Name));
}
static void Main(string[] args)
{
Console.WriteLine("\n\nArray List: \n");
ArrayList arrayListOfProducts = Product_csh1.GetSampleProducts();
foreach (var item in arrayListOfProducts)
{
Console.WriteLine($"{item}");
}
Console.WriteLine("\nSorted Array List: listing 1.5");
arrayListOfProducts.Sort(new ProductNameComparerOne());
foreach (var item in arrayListOfProducts)
{
Console.WriteLine($"{item}");
}
Console.WriteLine("\nFiltering products which price is above 10 Listing 1.10");
foreach (Product_csh1 item in arrayListOfProducts)
{
if (item.Price > 10)
{
Console.WriteLine(item);
}
}
Console.WriteLine("\n\nGeneric List C#2: \n");
List <Product_csh2> genericListOfProducts = Product_csh2.GetSampleProducts();
foreach (var item in genericListOfProducts)
{
Console.WriteLine($"{item}");
}
Console.WriteLine("\nSorted Generic List C#2: ");
genericListOfProducts.Sort(new ProductNameComparerTwo());
foreach (var item in genericListOfProducts)
{
Console.WriteLine($"{item}");
}
Console.WriteLine("\nFiltering products which price is above 10 C#2 Listing 1.11");
Predicate <Product_csh2> filterPredicateCsh2 = delegate(Product_csh2 x) { return(x.Price > 10m); };
List <Product_csh2> matches10mList = genericListOfProducts.FindAll(filterPredicateCsh2);
Action <Product_csh2> printResult = Console.WriteLine; // creating delegate from existing method
matches10mList.ForEach(printResult);
Console.WriteLine("\nFiltering products which price is above 10 C#2 Listing 1.12");
genericListOfProducts.FindAll(delegate(Product_csh2 x) { return(x.Price > 10); }).ForEach(Console.WriteLine);
Console.WriteLine("\n\nGeneric List C#3: \n");
List <Product_csh3> genericListOfProductsCs3 = Product_csh3.GetSampleProducts();
foreach (var item in genericListOfProductsCs3)
{
Console.WriteLine($"{item}");
}
Console.WriteLine("\nSorted Generic List C#3: ");
genericListOfProductsCs3.Sort(delegate(Product_csh3 x, Product_csh3 y) { return(x.Name.CompareTo(y.Name)); });
foreach (var item in genericListOfProductsCs3)
{
Console.WriteLine($"{item}");
}
Console.WriteLine("\nFiltering products which price is above 10 C#3 Listing 1.13");
foreach (var item in genericListOfProductsCs3.Where(p => p.Price > 10))
{
Console.WriteLine(item);
}
Console.WriteLine("\nFiltering products which price is above 10 C#3 Listing 1.13 In One line");
genericListOfProductsCs3.FindAll(p => p.Price > 10).ForEach(Console.WriteLine);
Console.WriteLine("\n\nGeneric List C#4: \n");
List <Product_csh4> genericListOfProductsCs4 = Product_csh4.GetSampleProducts();
foreach (var item in genericListOfProductsCs4)
{
Console.WriteLine($"{item}");
}
Console.WriteLine("\nSorted Generic List C#4: ");
genericListOfProductsCs4.Sort((x, y) => x.Name.CompareTo(y.Name));
foreach (var item in genericListOfProductsCs4)
{
Console.WriteLine($"{item}");
}
Console.WriteLine("\nSorted Generic List C#4 using linq OrderBy extension method: ");
foreach (var item in genericListOfProductsCs4.OrderBy(p => (p.Name, p.Price))) // in this way original list is not being modified
{
Console.WriteLine($"{item}");
}
Console.WriteLine("\nDisplaying products which price has null value: ");
foreach (var item in genericListOfProductsCs4.Where(p => p.Price == null))
{
Console.WriteLine(item);
}
Console.WriteLine("\nDisplaying products which price is bigger than 8, listing 1.15: ");
IEnumerable <Product_csh4> biggerThanEightProducts = from Product_csh4 p in genericListOfProductsCs4
where p.Price > 10
orderby p.Price, p.Name
select p;
foreach (Product_csh4 item in biggerThanEightProducts)
{
Console.WriteLine(item);
}
Console.WriteLine("\nCreating List Of suppliers and make connections between products and suppliers listing 1.16 ");
List <Product_csh4> listOfProdForSuppliersCs4 = Product_csh4.GetSampleProducts();
List <Supplier> listOfSuppCs4 = Supplier.GetSampleSuppliers();
var filtered = from product in listOfProdForSuppliersCs4
join supplier in listOfSuppCs4
on product.SupplierId equals supplier.SupplierId
orderby product.Name, supplier.Name
select new { ProductName = product.Name, SupplierName = supplier.Name };
foreach (var item in filtered)
{
Console.WriteLine($"Product Name: {item.ProductName}, Supplier Name: {item.SupplierName}");
}
Console.WriteLine("\nMake connections between products and suppliers from XML file listing 1.17 ");
XDocument document = XDocument.Load("dane.xml");
var filteredXml = from product in document.Descendants("Product")
join supplier in document.Descendants("Supplier")
on(int) product.Attribute("SupplierID") equals(int) supplier.Attribute("SupplierID")
where (decimal)product.Attribute("Price") > 10
orderby(string) product.Attribute("Name"), (string)supplier.Attribute("Name")
select new { ProductName = product.Attribute("Name"), SupplierName = supplier.Attribute("Name") };
foreach (var item in filteredXml)
{
Console.WriteLine(item);
}
}
