// Dapper

// Doc: https://dapper-tutorial.net/async

​

// @nuget: Dapper -Version 1.60.6

​

using Dapper;

using System;

using System.Data;

using System.Data.SqlClient;

using System.Linq;

using System.Collections.Generic;

public class Program

{   

    public class OrderDetail

    {

        public int OrderDetailID { get; set; }

        public int OrderID { get; set; }

        public int ProductID { get; set; }

        public int Quantity { get; set; }

        public Order Order { get; set; }

    }

    public class Order

    {

        public int OrderID { get; set; }

        public int CustomerID { get; set; }

        public int EmployeeID { get; set; }

        public DateTime OrderDate  { get; set; }

        public int ShipperID  { get; set; }

        public OrderDetail OrderDetail { get; set; }

    }

    public static void Main()

    {

        string sql = "SELECT TOP 10 * FROM Orders AS A INNER JOIN OrderDetails AS B ON A.OrderID = B.OrderID;";

​

        using (var connection = new SqlConnection(FiddleHelper.GetConnectionStringSqlServerW3Schools()))

        {

            var orderDetails = connection.QueryAsync<Order, OrderDetail, Order>(

                sql,

                (order, orderDetail) => 

                {

                    order.OrderDetail = orderDetail;

                    return order;

                },

            splitOn: "OrderDetailId").Result.ToList();

​

            Console.WriteLine(orderDetails.Count());

            FiddleHelper.WriteTable(orderDetails);

        }

    }

}