public void addTravelGuest(List <string> travelGuest) { MainPage mainPage = new MainPage(webDriver); Thread.Sleep(WDEx.delaySml); mainPage.SwitchToIFrame(webDriver, "contentIFrame1"); for (int i = 0; i < travelGuest.Count; i++) { RecordLocLbl.Click(); AddGuest.Click(); GuestId.SendKeys(travelGuest[i]); GuestId.SendKeys(Keys.Enter); GuestIdValueSelect.Click(); } webDriver.SwitchTo().DefaultContent(); }