ADO Net C# Tutorial

using System;
using System.Data;
using System.Data.SqlClient;
class MainClass
{
   static void Main()
   {
      SqlConnection conn = new SqlConnection("server=(local)\\SQLEXPRESS;database=MyDatabase;Integrated Security=SSPI;");
      SqlCommand cmd = new SqlCommand();
      Console.WriteLine("Command created.");
      try
      {
         conn.Open();
      }
      catch (SqlException ex)
      {
         Console.WriteLine(ex.ToString());
      }
      finally
      {
         conn.Close();
         Console.WriteLine("Connection Closed.");
      }
   }
}
Command created.
Connection Closed.