// Entity Framework Extensions
// Doc: https://entityframework-extensions.net/delete-range-by-key
// @nuget: Z.EntityFramework.Extensions
// @nuget: EntityFramework
using System.Data.Entity;
using System.Linq;
using System.Text;
using System.Collections.Generic;
public class Program
{
public static void Main()
int count = 6;
SeedCustomers(count);
var customers = GenerateCustomers(count);
using (var context = new EntityContext())
FiddleHelper.WriteTable("1 - Customers Before", context.Customers.AsNoTracking());
var customersToDelete = context.Customers.ToList().Take(2);
context.Customers.DeleteRangeByKey(customersToDelete);
FiddleHelper.WriteTable("1 - Customers After", context.Customers.AsNoTracking());
}
public static List<Customer> GenerateCustomers(int count)
List<Customer> list = new List<Customer>();
for(int i = 0; i < count; i++)
list.Add(new Customer() { CustomerID = (i + 1), Name = "Customer_" + i});
return list;
public static void SeedCustomers(int count)
new EntityContext().BulkInsert(customers, options => options.InsertKeepIdentity = true);
public class EntityContext : DbContext
public EntityContext() : base(FiddleHelper.GetConnectionStringSqlServer())
public DbSet<Customer> Customers { get; set; }
public class Customer
public int CustomerID { get; set; }
public string Name { get; set; }