How to organize the expectation of a certain state?

Question

I have Ajax events on my website. For exampe, when I click button one of the elements will change his state. But only when response will come from server.

Thread.Sleep(5000) is bad idea. I wrote this method:

public bool IsElementApear(By by){

    for (int i = 0; i < 10 i++)

    {

         try{

            driver.FindElement(By by);

            return true;

        }

        catch(NotFoundElementException){

        }

    Thread.Sleep(1000);

    }

 return false;

}

Is there a better way to wait certain state?

Comments

When you say change state or certain state, do you mean enabled/disable or visible or invisible?

---

I need to wait until the item appears in the DOM.

Answer 1

Have you tried webdriverwait?

public static Func<IWebDriver, IWebElement> ElementIsClickable(By locator)

{

    return driver =>

    {

        var element = driver.FindElement(locator);

        return (element != null && element.Displayed && element.Enabled) ? element : null;

    };

}

 

User above function something like this:

var wait = new WebDriverWait(driver, TimeSpan.FromMinutes(1));

var clickableElement = wait.Until(ExpectedConditions.ElementIsClickable

Hope that helps.