// Entity Framework Extensions

// Doc: https://entityframework-extensions.net/pre-bulk-insert

​

// @nuget: EntityFramework

// @nuget: Z.EntityFramework.Extensions

​

using System;

using System.Linq;

using System.Data.Entity;

using System.Collections.Generic;

using Z.EntityFramework.Extensions;

​

public class Program

{

    public static void Main()

    {

        EntityFrameworkManager.PreBulkInsert = (ctx, obj) => {

            if(obj is IEnumerable<Customer>) {

                foreach(var customer in (IEnumerable<Customer>)obj){

                    customer.CreatedDate = DateTime.Now;

                }

            }

        };

        var list = new List<Customer>() 

        { 

            new Customer()  { Name ="Customer_A", IsActive = true},

            new Customer()  { Name ="Customer_B", IsActive = true},

            new Customer()  { Name ="Customer_C", IsActive = true}

        };

​

        using (var context = new EntityContext())

        {

            context.BulkInsert(list);

        }

        using (var context = new EntityContext())

        {

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

        }

    }

​

    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 Boolean IsActive { get; set; }

        public DateTime? CreatedDate { get; set; }

        public DateTime? ModifiedDate { get; set; }

    }

}