how to click dynamic links like ads on a webpage using selenium - selenium-webdriver

Question

I am new to Selenium webdriver, and trying to test a webpage which has some dynamic links (dynamic ads). Example : ads on https://mail.rediff.com/cgi-bin/login.cgi
I tried with xpath ,classname and id but none of these is working.It is happening because every time new content is displaying on the page so it is not able to find the element and throwing Exception in thread "main":
org.openqa.selenium.NoSuchElementException: Unable to locate element: #map.
my code is :
package Selenium;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.interactions.Actions;
public class Image_Link {
static WebDriver driver ;
public static void main(String[] args) throws InterruptedException {
// TODO Auto-generated method stub
//System.setProperty("webdriver.chrome.driver", "E://chromedriver_win32//chromedriver.exe");
//driver = new ChromeDriver();
System.setProperty("webdriver.gecko.driver", "E://geckodriver-v0.21.0-win64//geckodriver.exe");
driver = new FirefoxDriver();
Actions actions = new Actions(driver);
driver.get("https://mail.rediff.com/cgi-bin/login.cgi");
//WebElement Dynamic_ads=driver.findElement(By.className("rhs-area floatR"));
WebElement Dynamic_ads=driver.findElement(By.id("map"));
actions.moveToElement(Dynamic_ads).perform();
WebElement ad_Link = driver.findElement(By.cssSelector("#map > area:nth-child(2)"));
actions.moveToElement(ad_Link);
actions.click();
actions.perform();
//driver.navigate().to("www.google.com");
//String value = driver.findElement(By.id("hplogo")).getAttribute("title");
}
}

Answer 1

The elements for the dynamic ads cannot be found because it isn't fully loaded yet on load page. I recommend adding an explicit wait time for the specific add you're looking for. You can check out this link here for more information.
Anyhow, here's your solution:
1.)Implement WebDriverWait: WebDriverWait wait = new WebDriverWait(driver, 20);
2.) Change your Dynamic_ads data to wait.until(ExpectedConditions.visibilityOfElementLocated(By.id("map"))); then do Dynamic_ads.click(); afterwards.
OR
2.) Change your Dynamic_ads data to wait.until(ExpectedConditions.visibilityOfElementLocated(By.xpath("//map[#id='map']/*"))); then do Dynamic_ads.click(); afterwards. NOTE: This will pick the first child node.