How to check if Element exists in c# Selenium drivers

Question

So I have this c# winform using Firefox selenium webdriers.

Basically i need it to check if an element exists and if it doesn't click on a different one. If there is a video and after it is watched it become W_VIEWED

Here is what i got so far

driver.FindElement(By.XPath("//div[@class='video']/a")).Click();
else {
          driver.FindElement(By.XPath("//div[@class='W_VIEWED']/a")).Click();
     }

Error 3 Only assignment, call, increment, decrement, await, and new object expressions can be used as a statement 242

Kind of new to c# selenium. Thank you for help.

Answer 1

You can check element exits or not using

bool isElementDisplayed = driver.findElement(By.xpath("element")).isDisplayed()

Remember, findElementthrows exception if it doesn't find element, so you need to properly handle it.

In one of my application I handled exception by checking element in separate function :

private bool IsElementPresent(By by)
{
    try
    {
        driver.FindElement(by);
        return true;
    }
    catch (NoSuchElementException)
    {
        return false;
    }
}

Call function :

if (IsElementPresent(By.Id("element name")))
{
    //do if exists
}
else
{
    //do if does not exists
}

Answer 2

You can use FindElements with an "s" to determine if it exists, since FindElement results in an Exception. If FindElements does not return an element then it returns an empty list.

List<IWebElement> elementList = new List<IWebElement>();
elementList.AddRange(driver.FindElements(By.XPath("//input[@att='something']")));

if(elementList.Count > 0)
{
 //If the count is greater than 0 your element exists.
   elementList[0].Click();
}