// Main.cs
//
//  Copyright (C) 2009 [José Antonio Martínez Torres]
// 
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// 
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
//
using System;
using Npgsql;//

namespace conexion
{
	class Postgre
	{
		public NpgsqlConnection dbcon; 
		
		public void conectar()
		{
	   string con = "Server=127.0.0.1;"+
      "Port=5432;"+
      "User Id=tu_usuario;"+
      "Password=tu_password;"+
      "Database=ejercicio;";	
			dbcon = new NpgsqlConnection(con);
			dbcon.Open();
		}
		
		public void ejectuar(string query)
		{
			NpgsqlCommand command = dbcon.CreateCommand();
			command.CommandText = query;
			command.ExecuteReader();
		
		}
		
		public void desconectar()
		{
			dbcon.Close();
		}
		
		public static void Main(string[] args)
		{
			try{
				Postgre conexion;
				conexion = new Postgre();
				conexion.conectar();
				Console.WriteLine("Conexión exitosa");
				string query = "INSERT INTO usuarios VALUES ('C01','Juan','Perez');";
				conexion.ejectuar(query);
				Console.WriteLine("Se ingreso el dato satisfactoriamente");
				Console.WriteLine("Visita http://www.antoniomtz.org");
		       }
		catch(NpgsqlException error)
			{
				string mensaje = error.Message;
				Console.WriteLine(mensaje);
			}
	}
	}
}