United Rentals Interview code

Program.cs

using System;
using System.Collections.Generic;
using System.Linq;
using Newtonsoft.Json;

namespace Test1
{
    class MainClass
    {
        public static void Main(string[] args)
        {
            Console.WriteLine("Start");


            var orders = new List<Order>() {
                new Order(){
                    Num = "1",
                    CustomerNum = "C1",
                    OrderDate = DateTime.Now,
                    OrderDetails = new List<OrderDetail>(){
                        new OrderDetail()
                        {
                            ItemNum = "01",
                            ItemDescr = "Desc1",
                            Quantity = 1,
                            Price = 1,
                        }
                    },
                },
                new Order(){
                    Num = "2",
                    CustomerNum = "C2",
                    OrderDate = DateTime.Now,
                    OrderDetails = new List<OrderDetail>(){
                        new OrderDetail()
                        {
                            ItemNum = "02",
                            ItemDescr = "Desc2",
                            Quantity = 2,
                            Price = 2,
                        }
                    },
                },
                new Order(){
                    Num = "3",
                    CustomerNum = "C3",
                    OrderDate = DateTime.Now,
                    OrderDetails = new List<OrderDetail>(){
                    },
                },
            };


            
            bool isANumber = false;
            int number;
            do
            {
                Console.WriteLine("Please enter the order number:");
                var input = Console.ReadLine();

                isANumber = Int32.TryParse(input, out number);
                if (!isANumber)
                    Console.WriteLine("Please enter a valid number");
            }
            while ( ! isANumber );
            



            var ordersFinded = orders.FindAll(o => o.Num == "" + number);

            if (ordersFinded.Count == 0)
            {
                Console.WriteLine("There is no order with that number");

                Console.WriteLine($"Choose a number between: {orders.Min( o => Int32.Parse(o.Num) ) } and :  {orders.Max(o => Int32.Parse(o.Num)) }");
            }
                

            foreach(var o in ordersFinded)
            {
                Console.WriteLine(JsonConvert.SerializeObject(o));
                if( o.OrderDetails == null || o.OrderDetails.Count == 0)
                {
                    Console.WriteLine("There is no order details for this order");
                }
            }


            Console.WriteLine("End");


            Console.ReadLine();
        }
    }

    class Order
    {
        public string Num { get; set; }
        public string CustomerNum { get; set; }
        public DateTime OrderDate { get; set; }
        public IList<OrderDetail> OrderDetails { get; set; }
    }

    class OrderDetail
    {
        public string ItemNum { get; set; }
        public string ItemDescr { get; set; }
        public int Quantity { get; set; }
        public decimal Price { get; set; }
    }

}

.NET Interview Test - Instructions

from Nataliia Biernikova (internal) to Luis Hernandez (privately): 1:15 PM
.NET Interview Test - Instructions
Task
Create a Console application using one of the following environment options, to address the following requirements.
Environment Set up
Option 1: Open Visual Studio or Visual Studio Code – will provide the best user experience.
Option 2: dotnetfiddle – no intellisense, but will provide error messages.
https://dotnetfiddle.net.
Option 3: onlinegdb – has some intellisense, but no details on error messages.
https://www.onlinegdb.com/online_csharp_compiler
Requirements
Create a console application that does the following:

1. Create sample data for 3 different orders.
2. Allows a user to enter an order number, and display the order information for that order, from the sample data.
   Initial Code snipit – The Order Object
   public class Order {
   public string Num { get; set; }
   public string CustomerNum { get; set; }
   public DateTime OrderDate { get; set; }
   public IList OrderDetails { get; set; }
   }
   public class OrderDetail {
   public string ItemNum { get; set; }
   public string ItemDescr { get; set; }
   public int Quantity { get; set; }
   public decimal Price { get; set; }
   }