// 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;

using System.Threading.Tasks;

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 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 List<OrderDetail> OrderDetails { get; set; }

    }

    public static async Task Main()

    {       

        var sql = "SELECT TOP 3 * FROM Orders; SELECT TOP 3 * FROM OrderDetails;";

​

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

        {

            connection.Open();

​

            using (var multi = await connection.QueryMultipleAsync(sql).ConfigureAwait(false))

            {

                var orders = multi.Read<Order>().ToList();

                var orderDetails = multi.Read<OrderDetail>().ToList();

                FiddleHelper.WriteTable(orders);

                FiddleHelper.WriteTable(orderDetails);

            }

        }

    }

}