// @nuget: Z.EntityFramework.Classic

​

using System;

using System.Linq;

using System.Collections.Generic;

using System.Data.Entity;

​

public class Program

{

    public static void Main()

    {

        var customers = new List<Customer>();

        customers.Add(new Customer() { Name ="Customer_A", Description = "Description", IsActive = true, LastLogin = new DateTime(2010,1,1) });

        customers.Add(new Customer() { Name ="Customer_B", Description = "Description", IsActive = true, LastLogin = new DateTime(2010,1,1) });

        GenerateData(customers);

​

        using (var context = new EntityContext())

        {

            context.Customers.AttachRange(customers, EntityState.Deleted);

            context.SaveChanges();

            FiddleHelper.WriteTable("Customers", context.Customers.ToList());           

        }

    }

    public static void GenerateData(List<Customer> customers)

    {

        using (var context = new EntityContext())

        {

            context.Customers.AddRange(customers);          

            context.Customers.Add(new Customer() { Name ="Customer_C", Description = "Description", IsActive = true, LastLogin = DateTime.Now });

            context.SaveChanges();  

        }

    }

​

    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; }

        public string Description { get; set; }

        public DateTime LastLogin { get; set; }

        public Boolean IsActive { get; set; }

    }

}