ADO Net C# Tutorial

using System;
using System.Data;            
using System.Data.SqlClient;  
  class Program
  {
    static void Main(string[] args)
    {
      SqlConnection thisConnection = new SqlConnection(
                @"Data Source=.\SQLEXPRESS;" +
                @"AttachDbFilename='NORTHWND.MDF';" +
                @"Integrated Security=True;Connect Timeout=30;User Instance=true");       
      thisConnection.Open();
      SqlCommand thisCommand = thisConnection.CreateCommand();
      thisCommand.CommandType = CommandType.StoredProcedure;
      thisCommand.CommandText ="TenRecoreds";
      SqlDataReader thisReader = thisCommand.ExecuteReader();
      while (thisReader.Read())
      {
        Console.WriteLine(thisReader["UnitPrice"]);
      }
      thisReader.Close();
      thisConnection.Close();
    }
  }