/// <summary>
/// ConcurrentCollections with EntitFramework
/// </summary>
public void Run6()
{
LinqDemoEntities db = new LinqDemoEntities();
var products = GetProducts();
ConcurrentBag <Order> cb = new ConcurrentBag <Order>();
Console.WriteLine("來源資料筆數:{0}", products.Count());
Console.WriteLine("執行前結果資料筆數:{0}", db.Order.Count());
Parallel.ForEach(products, x =>
{
int id = x.Id;
string name = x.Name;
int stock = 100 + x.Id;
var order = new Order()
{
Id = id,
OrderName = name
};
cb.Add(order);
});
db.Order.AddRange(cb);
db.SaveChanges();
Console.WriteLine("執行後結果資料筆數:{0}", db.Order.Count());
}
/// <summary>
/// List with EntitFramework
/// </summary>
public void Run5()
{
LinqDemoEntities db = new LinqDemoEntities();
var products = GetProducts();
Console.WriteLine("來源資料筆數:{0}", products.Count());
Console.WriteLine("執行前結果資料筆數:{0}", db.Order.Count());
var watch = new Stopwatch();
watch.Start();
Parallel.ForEach(products, x =>
{
int id = x.Id;
string name = x.Name;
int stock = 100 + x.Id;
var order = new Order()
{
Id = id,
OrderName = name
};
db.Order.Add(order);
});
watch.Stop();
Console.WriteLine("Consume Time: {0} ms", watch.ElapsedMilliseconds);
db.SaveChanges();
Console.WriteLine("執行後結果資料筆數:{0}", db.Order.Count());
}
