BinarySearch.cs

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

namespace SoAlgorithms
{
    class BinarySearch
    {
        public BinarySearch()
        {

        }

        public int Search(int[] values, int valueToSearchFor)
        {
            for (int i = 0; i < values.Length; i++)
            {

            }

            return 1;
        }
    }
}

Program.cs

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

namespace SoAlgorithms
{
    class Program
    {
        static void Main(string[] args)
        {
            // var name = "Chiemeka";
            var valueToSearchFor = 3;
            var values = new int[10] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };

            var searcher = new BinarySearch();

            var index = searcher.Search(values, valueToSearchFor);

            if (index >= 0)
            {
                Console.WriteLine("Value found at index " + index);
            }
            else
            {
                Console.WriteLine("Value not found");
            }

            Console.ReadKey();
        }
    }
}