EF Extensions - WhereBulkContains - Filter Included Entities (One-to-one)

CSharp · Console

/Program.cs

// Entity Framework Extensions
// Doc: https://entityframework-extensions.net/where-bulk-contains

// @nuget: Microsoft.EntityFrameworkCore.SqlServer
// @nuget: Z.EntityFramework.Extensions.EFCore

using System.Collections.Generic;

using System.Linq;
using Microsoft.Data.SqlClient;
using Microsoft.EntityFrameworkCore;

public class Program
{
	public static void Main()
	{
		// Doc: https://entityframework-extensions.net/where-bulk-contains
		using (var context = new EntityContext())
		{
			context.Database.EnsureCreated();
			
			// SEED
			var customer1 = new Customer() { Name = "Jonathan" };
			var customer2 = new Customer() { Name = "ZZZ Projects" };
			var customer3 = new Customer() { Name = "Sara" };
			
			context.Orders.Add(new Order() { TotalQuantity = 13, Customer = customer1 });
			context.Orders.Add(new Order() { TotalQuantity = 66, Customer = customer2 });
			context.Orders.Add(new Order() { TotalQuantity = 99, Customer = customer3 });
			context.Orders.Add(new Order() { TotalQuantity = 101, Customer = customer1 });
			
			context.SaveChanges();
		}
		
		using (var context = new EntityContext())
		{
			List<string> customerNames = new List<string>() { "Jonathan", "ZZZ Projects"};
			
			var orders = context.Orders.Include(x => x.Customer).WhereBulkContains(x => x.Customer, customerNames, x => x.Name).ToList();
			
			FiddleHelper.WriteTable(orders);
		}
	}
	
	public class EntityContext : DbContext
	{
		static EntityContext()
		{
			using (var context = new EntityContext())
			{
				context.Database.EnsureCreated();
			}
		}
		
		public DbSet<Order> Orders { get; set; }
		public DbSet<Customer> Customers { get; set; }

		protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
		{
			optionsBuilder.UseSqlServer(new SqlConnection(FiddleHelper.GetConnectionStringSqlServer()));

			base.OnConfiguring(optionsBuilder);
		}
	}
	
	public class Order
	{
		public int OrderID { get; set; }
		public int TotalQuantity { get; set; }
		public Customer Customer { get; set; }
	}	
	
	public class Customer
	{
		public int CustomerID { get; set; }
		public string Name { get; set; }
	}
}