using Microsoft.EntityFrameworkCore; // DbContext, DbSet namespace Packt.Shared; public class Northwind : DbContext { public DbSet Customers { get; set; } = null!; protected override void OnConfiguring( DbContextOptionsBuilder optionsBuilder) { string path = Path.Combine(Environment.CurrentDirectory, "Northwind.db"); string connection = $"Filename={path}"; optionsBuilder.UseSqlite(connection); } }