ADO Net C# Tutorial

using System;
using System.Data;
using System.Data.SqlClient;
using System.Data.OleDb;
class MainClass
{
    public static void Main()
    {
        using (OleDbConnection con = new OleDbConnection())
        {
            con.ConnectionString ="provider=sqloledb;server=(local)\\SQLEXPRESS;database=MyDatabase;Integrated Security=SSPI";    
            con.Open();
            if (con.State == ConnectionState.Open)
            {
                Console.WriteLine("OleDbConnection Information:");
                Console.WriteLine("  Connection State = " + con.State);
                Console.WriteLine("  Connection String = " +
                    con.ConnectionString);
                Console.WriteLine("  Database Source = " + con.DataSource);
                Console.WriteLine("  Database = " + con.Database);
                Console.WriteLine("  Server Version = " + con.ServerVersion);
                Console.WriteLine("  Timeout = " + con.ConnectionTimeout);
            }
            else
            {
                Console.WriteLine("OleDbConnection failed to open.");
                Console.WriteLine("  Connection State = " + con.State);
            }
        }
    }
}
OleDbConnection Information:
Connection State = Open
Connection String = provider=sqloledb;server=(local)\SQLEXPRESS;database=MyDatabase;Integrated Sec
urity=SSPI
Database Source = (local)\SQLEXPRESS
Database = MyDatabase
Server Version = 09.00.1399
Timeout = 15