// Entity Framework Extensions

// Doc: https://entityframework-extensions.net/transaction

​

// @nuget: Microsoft.EntityFrameworkCore.SqlServer

// @nuget: Z.EntityFramework.Extensions.EFCore

​

using System;

using System.Linq;

using Microsoft.EntityFrameworkCore;

using System.Collections.Generic;

using Microsoft.Data.SqlClient;

using System.ComponentModel.DataAnnotations;

using System.ComponentModel.DataAnnotations.Schema;

​

public class Program

{

    public static void Main()

    {

        using (var context = new EntityContext())

        {

            context.Database.EnsureCreated();

        }

        // Transaction : As SaveChanges, BulkSaveChanges already save all entities within an internal transaction. So by default, there is nothing to do.

        // However, if you start a transaction within Entity Framework, BulkSaveChanges will honor it and will use this transaction instead of creating an internal transaction.

        using (var context = new EntityContext())

        {

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

            context.Customers.AddRange(list); 

            var transaction = context.Database.BeginTransaction();

            try

            {

                context.BulkSaveChanges();

                transaction.Commit();

            }

            catch

            {

                transaction.Rollback();

            }

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

        }

    }

    public class EntityContext : DbContext

    {

        public EntityContext() 

        {

        }

​

        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)

        {

            optionsBuilder.UseSqlServer(new SqlConnection(FiddleHelper.GetConnectionStringSqlServer()));

​

            base.OnConfiguring(optionsBuilder);

        }

        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; }

    }

}