The element I am specifying is not being waited for by WebDriverWait

I'm facing a challenge where I need my code to pause until a specific element appears before proceeding to extract text from it. When I manually step through the code and give enough time for the element to show up, everything works fine. However, when running the code without breaks, it seems like the waiting mechanism is not being recognized, resulting in an exception being thrown.

I'm puzzled as to why this behavior is occurring?

WebDriverWait wait = new WebDriverWait(driver, TimeSpan.FromSeconds(30));
IWebElement message = wait.Until(driver => driver.FindElement(By.ClassName("block-ui-message")));
string messageText = message.Text;
c#seleniumselenium-chromedriverwebdriverwait

Answer №1

If you're looking for an alternative approach, consider utilizing the WebDriverWait function along with the ElementIsVisible() method and implementing the suggested Locator Strategy:

string messageText = new WebDriverWait(driver, TimeSpan.FromSeconds(30)).Until(ExpectedConditions.ElementIsVisible(By.ClassName("block-ui-message"))).GetAttribute("innerHTML");

Using DotNetSeleniumExtras.WaitHelpers in conjunction with nuget:

In case it wasn't entirely clear what was meant by the specific "using directive I need," if you are using SeleniumExtras and WaitHelpers, the following solution can be applied:

string messageText = new WebDriverWait(driver, TimeSpan.FromSeconds(10)).Until(SeleniumExtras.WaitHelpers.ExpectedConditions.ElementIsVisible(By.ClassName("block-ui-message"))).GetAttribute("innerHTML");

Answer №2

Here's an example code that will pause execution until a specific element is visible.


        private bool CheckIfElementExists(By selector)
        {
            try
            {
                _driver.FindElement(selector);
                return true;
            }
            catch (NoSuchElementException)
            {
                return false;
            }
        }

        private void WaitForElement(By selector)
        {
            var wait = new WebDriverWait(_driver, TimeSpan.FromHours(2));
            wait.Until(driver =>
            {
                return CheckIfElementExists(selector);
            });
        }

      // ...
      // Example of how to use it
      WaitForElement(By.CssSelector(".modal-popup")); // This will wait until the element with class 'modal-popup' is present on the page

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