Contoh Source Koneksi Database pada C#

using System;
using System.Collections.Generic;
using System.Text;
using System.Data.SqlClient;

namespace NamaProject
{
    class Connection
    {
        static string connString;

        public Connection()
        {
        }

        static Connection()
        {

           connString = @"Data Source=namaKomputer\SQLEXPRESS; Initial Catalog = NamaDatabase; Integrated Security = true";
            //conn = new SqlConnection(connString);
        }

        public static SqlConnection conn
        {
            get
            {
                return new SqlConnection(connString);
            }
        }
    }
}