public static void Run()
{
var customers = PlinqDataSample.GetCustomers();
// Take the first 20, preserving the original order
var firstTwentyCustomers = customers
.AsParallel()
.AsOrdered()
.Take(20);
foreach (var c in firstTwentyCustomers)
{
Console.WriteLine("{0} ", c.CustomerID);
}
Console.WriteLine();
// All elements in reverse order.
var reverseOrder = customers
.AsParallel()
.AsOrdered()
.Reverse();
foreach (var v in reverseOrder)
{
Console.WriteLine("{0} ", v.CustomerID);
}
}
public static void Run()
{
var orders = PlinqDataSample.GetOrders();
var orderDetails = PlinqDataSample.GetOrderDetails();
var q2 = orders.AsParallel()
.Where(o => o.OrderDate < DateTime.Parse("07/04/1997"))
.Select(o => o)
.OrderBy(o => o.CustomerID) // Preserve original ordering for Take operation.
.Take(20)
.AsUnordered() // Remove ordering constraint to make join faster.
.Join(
orderDetails.AsParallel(),
ord => ord.OrderID,
od => od.OrderID,
(ord, od) =>
new
{
ID = ord.OrderID,
Customer = ord.CustomerID,
Product = od.ProductID
}
)
.OrderBy(i => i.Product); // Apply new ordering to final result sequence.
foreach (var v in q2)
{
Console.WriteLine("{0} {1} {2}", v.ID, v.Customer, v.Product);
}
}
