c# - WebDriverWait is not waiting for the element I specify

Question

I am trying to get my code to wait for an element to appear before trying to get the text from the element. If I step through the code allowing the element time to appear it works as expected, but if I run it without breakpoints the wait appears to be ignored and an exception is raised.

I don't understand why it is being ignored?

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

Answer 1

As an alternative you can induce WebDriverWait for the ElementIsVisible() and you can use the following Locator Strategy:

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

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Using DotNetSeleniumExtras.WaitHelpers with nuget:

Not that super clear what exactly you meant by specific using directive I need. In-case you are using SeleniumExtras and WaitHelpers you can use the following solution:

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