ADO Net C# Tutorial

using System;
using System.Data.SqlClient;
using System.Data.OleDb;
using System.Data.Odbc;
    class Program
    {
        static void Main(string[] args)
        {
            string sqlConnectString1 = "Data Source=(local);Integrated security=SSPI;Initial Catalog=AdventureWorks;";
            using (SqlConnection connection = new SqlConnection(sqlConnectString1))
            {
                connection.Open(  );
                Console.WriteLine("ConnectionString = {0}\n", sqlConnectString1);
                Console.WriteLine("State = {0}", connection.State);
                Console.WriteLine("DataSource = {0}", connection.DataSource);
                Console.WriteLine("ServerVersion = {0}", connection.ServerVersion);
            }
        }
    }