// Entity Framework Extensions

// Doc: https://entityframework-extensions.net/column-input-expression

​

// @nuget: EntityFramework

// @nuget: Z.EntityFramework.Extensions

​

using System;

using System.Data.Entity;

using System.Collections.Generic;

using System.Linq;

public class Program

{

    public static void Main()

    {

        List<Customer> list =  new List<Customer>() { new Customer() { Name ="Customer_A", Description = "Description" , IsActive = false }, 

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

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

        // ColumnInputExpression: Gets or sets columns to map with the direction Input.

        using (var context = new EntityContext())

        {

            context.BulkInsert(list, options => options.ColumnInputExpression = c => new { c.Name, c.IsActive });

            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; }

    }

}