public static string getInfo(string UserName, string Password, string PropertyName) { string rs = ""; try { TaiKhoan dao = new TaiKhoan(); DataTable table = dao.GetUser(UserName, Password); if (table != null) { foreach (DataRow dr in table.Rows) { rs = dr[PropertyName].ToString(); } } } catch (Exception) { rs = ""; } return(rs); }