static void Main(string[] args)
{
List <Product> newProductList = new List <Product> {
new Product {
Name = "TV", Cost = 400
}, new Product {
Name = "USB", Cost = 12
}
};
List <Product> oldProductList = new List <Product> {
new Product {
Name = "TV", Cost = 450
}, new Product {
Name = "MP3 Player", Cost = 20
}
};
var comparer = new ListComparer <Product>(newProductList, oldProductList);
var added = comparer.GetAddedItems();
var deleted = comparer.GetDeletedItems();
var updated = comparer.GetUpdatedItems();
System.Console.WriteLine("Added product {0}", added.FirstOrDefault().Name);
System.Console.WriteLine("Updated product {0}", updated.FirstOrDefault().Name);
System.Console.WriteLine("Deleted product {0}", deleted.FirstOrDefault().Name);
}