public static SqlConnection hamketnoisql()
{
CauHinhServerBE server = new CauHinhServerBE();
CauHinhServerBL serverxuly = new CauHinhServerBL();
server = serverxuly.docdulieu(Environment.CurrentDirectory + "/CauHinhServer.xml");
return(new SqlConnection("server=" + server.Namer1 + ";database=" + server.Data1 + ";user id=" + server.User1 + ";password="******""));
}