// Entity Framework Classic

// Doc: https://entityframework-classic.net/soft-delete

​

// @nuget: Z.EntityFramework.Classic

​

using System;

using System.Linq;

using System.Data.Entity;

using Z.EntityFramework.Classic;

​

public class Program

{

    public static void Main()

    {

        GenerateData();

​

        using (var context = new EntityContext())

        {

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

        }

        using (var context = new EntityContext())

        {

            context.Configuration.SoftDelete.IsEnabled = false;

            // Delete A from Customers as A where Name = 'Customer_A'

            var list = context.Customers.Where(x => x.Name == "Customer_A").ToList();

            context.Customers.RemoveRange(list);

            context.SaveChanges();  

            FiddleHelper.WriteTable("After Delete With SoftDelete.IsEnabled = False", context.Customers.ToList());      

            context.Configuration.SoftDelete.IsEnabled = true;

            // UPDATE Customers SET IsDeleted = 1

            context.Customers.RemoveRange(context.Customers.ToList());

            context.SaveChanges();  

        }

        using (var context = new EntityContext())

        {

            FiddleHelper.WriteTable("After Delete With SoftDelete.IsEnabled = True", context.Customers.ToList());       

        }

    }

    public static void GenerateData()

    {

        using (var context = new EntityContext())

        {

            context.Customers.Add(new Customer() { Name = "Customer_A", Description = "Description" });

            context.Customers.Add(new Customer() { Name = "Customer_B", Description = "Description" });         

            context.Customers.Add(new Customer() { Name = "Customer_C", Description = "Description" });

            context.SaveChanges();  

        }

    }

​

    public class EntityContext : DbContext

    {

        public EntityContext() : base(FiddleHelper.GetConnectionStringSqlServer())

        {

        }

        public DbSet<Customer> Customers { get; set; }

    }

    public class Customer : IEFSoftDelete

    {

        public int CustomerID { get; set; }

        public string Name { get; set; }

        public string Description { get; set; }

        public bool IsDeleted { get; set; }

    }

}