EF Classic - AttachRange - EntityState (EF Core)

CSharp · Console

/Program.cs

 // @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; }
	}
}