Unable to locate element error using selenium in C#

Question

im trying to get the element using selenium by id and by XPATH but in both cases unable to locate error occurs. Code:

IWebDriver dr = new ChromeDriver();
 dr.Navigate().GoToUrl("http://epaper.dawn.com/");
 IWebElement today = dr.FindElement(By.XPath("//*[@id='planetmap']"));

Code of the element is

I have tried both id and XPATH method

Answer 1

The desired element is inside an iframe , switch to it first :

dr.SwitchTo().Frame("DawnPaperFrame");
IWebElement today = dr.FindElement(By.XPath("//*[@id='planetmap']"));