Visitor Design Pattern

Program.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace VisitorPattern
{
    public enum Categories
    {
        Food,
        Oil,
        Electronics,
        Cloths
    }
    //element
    public interface IElement
    {
        void Accept(IVisitor visitor);
    }
    //concrete element
    public class Products : IElement
    {
        public void Accept(IVisitor visitor)
        {
            Console.WriteLine("Name - {0}, Product Visited - {1}, Category - {2}", 
                visitor.Name, visitor.ProductVisited, visitor.Category);
        }
    }
    //concrete element
    public class Discounts : IElement
    {
        public void Accept(IVisitor visitor)
        {
            double discount = 0;
            switch (visitor.Category)
            {
                case Categories.Food:
                    discount = 10;
                    break;
                case Categories.Electronics:
                    discount = 20;
                    break;
                case Categories.Cloths:
                    discount = 15;
                    break;
                default:
                    discount = 5;
                    break;
            }
            Console.WriteLine("Product Name - {0}, Price - {1}, Discount ({2}%) - {3}", 
                visitor.ProductVisited, visitor.Price, discount, (visitor.Price * discount)/100);
        }
    }
    //visitor
    public interface IVisitor
    {
        string Name { get; set; }
        string ProductVisited { get; set; }
        double Price { get; set; }
        Categories Category { get; set; }
        void Visit(IElement element);
    }
    //concrete visitor
    public class GroceriesVisitor : IVisitor
    {
        public string Name { get; set; }
        public string ProductVisited { get; set; }
        public double Price { get ; set; }
        public Categories Category { get; set; }
        public GroceriesVisitor(string name, string productVisited, double price, Categories category )
        {
            Name = name;
            ProductVisited = productVisited;
            Price = price;
            Category = category;
        }
        public void Visit(IElement element)
        {
            element.Accept(this);
        }
    }
    //concrete visitor
    public class AppliancesVisitor : IVisitor
    {
        public string Name { get; set; }
        public string ProductVisited { get; set; }
        public double Price { get; set; }
        public Categories Category { get; set; }
        public AppliancesVisitor(string name, string productVisited, double price, Categories category)
        {
            Name = name;
            ProductVisited = productVisited;
            Price = price;
            Category = category;
        }
        public void Visit(IElement element)
        {
            element.Accept(this);
        }
    }
    //concrete visitor
    public class FashionVisitor : IVisitor
    {
        public string Name { get; set; }
        public string ProductVisited { get; set; }
        public double Price { get; set; }
        public Categories Category { get; set; }
        public FashionVisitor(string name, string productVisited, double price, Categories category)
        {
            Name = name;
            ProductVisited = productVisited;
            Price = price;
            Category = category;
        }
        public void Visit(IElement element)
        {
            element.Accept(this);
        }
    }
    //entry point
    class Program
    {
        static void Main(string[] args)
        {
            List<IVisitor> Items = new List<IVisitor>();

            Items.Add(new GroceriesVisitor("Visitor1", "Rice", 150, Categories.Food));
            Items.Add(new GroceriesVisitor("Visitor2", "Oil", 95, Categories.Oil));
            Items.Add(new AppliancesVisitor("Visitor3", "Speakers", 500, Categories.Electronics));
            Items.Add(new AppliancesVisitor("Visitor4", "Cameras", 500, Categories.Electronics));
            Items.Add(new FashionVisitor("Visitor5", "Shirts", 1500, Categories.Cloths));
            Items.Add(new FashionVisitor("Visitor6", "Jeans", 3000, Categories.Cloths));

            Console.WriteLine("-----Visiting prices of all items-----");
            foreach(var item in Items)
            {
                item.Visit(new Products());
            }
            
            Console.WriteLine("-----Visiting discounts of all items-----");
            foreach (var item in Items)
            {
                item.Visit(new Discounts());
            }

            Console.Read();
        }
    }
}