Thread: C# McDonalds Program Help!

I can't figure out how to assign the value of the item to a variable and store it to be used later, So i can add it to the other items to give the total of the order.

Please Help!

Code:

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

namespace ex6_2
{
    class Program
    {
        static void Main(string[] args)
        {
            string userin;
            char sandwichch;
            char friesch;
            char drinkch;
            int sandwich = 0, fries = 0, drink = 0;
            double total = 0.0;

            Console.WriteLine("(a) Big Mac - $3.99         (b) McChicken - $3.99");
            Console.WriteLine("(c) Filet-O-Fish - $3.00    (d) No Sandwich");
            Console.WriteLine("Please select sandwich: ");
            userin = Console.ReadLine();
            sandwichch = userin[0];
            switch (sandwichch)
            {
                case 'a': //bigmac
                    sandwich = 3.49;
                    sandwich = Convert.ToInt32(Console.ReadLine());
                    break;
                case 'b': //mcchicken
                    sandwich = 3.49;
                    sandwich = Convert.ToInt32(Console.ReadLine());
                    break;
                case 'c': //filetofish
                    sandwich = 3.00;
                    sandwich = Convert.ToInt32(Console.ReadLine());
                    break;
                case 'd': //nosandwich
                    sandwich = 0.00;
                    sandwich = Convert.ToInt32(Console.ReadLine());
                    break;
                default:
                    total = 0.0;
                    Console.WriteLine("Invalid Input");
                    break;
            }
            Console.WriteLine("(a) Large - $2.25 (b) Medium - $1.75 (c) Small - $1.75 (d) No Fries");
            Console.WriteLine("Please select fries size: ");
            userin = Console.ReadLine();
            fries = userin[0];
            switch (friesch)
            {
                case 'a': //large
                    fries = 2.25;
                    fries = Convert.ToInt32(Console.ReadLine());
                    break;
                case 'b': //medium
                    fries = 1.75;
                    fries = Convert.ToInt32(Console.ReadLine());
                    break;
                case 'c': //small
                    fries = 1.25;
                    fries = Convert.ToInt32(Console.ReadLine());
                    break;
                case 'd': //no
                    fries = 0.00;
                    fries = Convert.ToInt32(Console.ReadLine());
                    break;
                default:
                    total = 0.0;
                    Console.WriteLine("Invalid Input");
                    break;
            }
            Console.WriteLine("(a) Large - $1.75 (b) Medium - $1.60 (c) Small - $1.30 (d) No Drink");
            Console.WriteLine("Please select drink size: ");
            userin = Console.ReadLine();
            drink = userin[0];
            switch (drinkch)
            {
                case 'a': //large
                    drink = 1.75;
                    drink = Convert.ToInt32(Console.ReadLine());
                    break;
                case 'b': //medium
                    drink = 1.60;
                    drink = Convert.ToInt32(Console.ReadLine());
                    break;
                case 'c': //small
                    drink = 1.30;
                    drink = Convert.ToInt32(Console.ReadLine());
                    break;
                case 'd': //no
                    drink = 0.00;
                    drink = Convert.ToInt32(Console.ReadLine());
                    break;
                default:
                    total = 0.0;
                    Console.WriteLine("Invalid Input");
                    break;
            }
            if (sandwich >= 3.00 && fries >= 1.25 && drink >=1.30)
            {
                total = sandwich + fries + drink - 0.75;
            }
            else
            {

            }
            Console.WriteLine("Your total is: {0:0.0}", total);
        }
    }
}