using System.Collections.Generic;
using System.Data.Entity;
public static void Main()
using (var context = new EntityContext())
var list = context.Customers.ToList();
FiddleHelper.WriteTable("1 - Customers Before", context.Customers.AsNoTracking());
list.Single(x => x.Code == "Customer_A").Code = "Customer_A_Modified";
context.Customers.Remove(list.Single(x => x.Code == "Customer_B"));
context.Customers.Add(new Customer()
context.BatchSaveChanges();
FiddleHelper.WriteTable("2 - Customers After", context.Customers.AsNoTracking());
public static void GenerateCustomers()
using (var context = new EntityContext())
context.Customers.Add(new Customer()
context.Customers.Add(new Customer()
context.BatchSaveChanges();
public class EntityContext : DbContext
public EntityContext(): base(FiddleHelper.GetConnectionStringSqlServer())
public DbSet<Customer> Customers