private static void BulkDelete(EntitiesModel context)
{
context.Log = null;
var query = context.GetAll<Product>().Where(p => p.ProductID % 7 == 1);
int deleted = query.DeleteAll();
Console.WriteLine("Deleted products: {0}", deleted);
}
private static MemoryStream SerializeToBinaryStream(string customerId)
{
BinaryFormatter formatter = new BinaryFormatter();
MemoryStream stream = new MemoryStream();
using (EntitiesModel dbContext = new EntitiesModel())
{
Customer customer = dbContext.Customers.Where(c => c.CustomerID == customerId).First();
formatter.Serialize(stream, customer);
}
return stream;
}
private static void BulkInsert(EntitiesModel context)
{
List<Product> products = new List<Product>(50000);
for (int i = 0; i < 50000; i++)
{
Product product = new Product() { ProductName = "Lexus" + i, SupplierID = 5, CategoryID = 5, UnitPrice = 1000m, QuantityPerUnit = "1 piece" };
products.Add(product);
}
context.Add(products);
context.SaveChanges();
}
private static void TestOpenAccessDelete()
{
var context = new EntitiesModel();
try
{
var products = context.Products.Count();
Console.WriteLine(products);
}
catch (Exception e)
{
Console.WriteLine(e.InnerException);
}
// Use this to populate your database with 50000 products
BulkInsert(context);
//BulkDelete(context);
//SlowDelete(context);
}
private static void SlowDelete(EntitiesModel context)
{
context.Delete(context.Products.Where(p => p.ProductID % 7 == 2));
context.SaveChanges();
}
