FizzBuzzInCSharp7.cs

using System;

namespace FizzBuzz
{
    class Program
    {
        static void Main(string[] args)
        {
            for(int i=1;i<=100;i++) {
                switch (new { mod3 = i % 3, mod5 = i % 5 }) {
                    case var t when t.mod3 == 0 && t.mod5 == 0:
                        Console.WriteLine("FizzBuzz");
                        break;
                    case var t when t.mod3 == 0:
                        Console.WriteLine("Fizz");
                        break;
                    case var t when t.mod5 == 0:
                        Console.WriteLine("Buzz");
                        break;
                    default:
                        Console.WriteLine(i);
                        break;
                }
            }
        }
    }
}