//--------------------------------------------------------LOGIN---------------------------------------------------------------------- public bool Valida_sesion(string user, string pass) { MySqlCommand cmdcomando = new MySqlCommand(); cmdcomando.CommandText = "SELECT * FROM usuarios where usuario='" + user + "' and contraseña='" + pass + "'"; cmdcomando.CommandType = CommandType.Text; DataTable resultado = conexion.ejecutar_sentenciasql(cmdcomando); if (resultado.Rows.Count == 0) { return(false); } else { return(true); } }