Webdriver How to wait until the element is clickable in webdriver C#

Question

There is a block Ui which covers all the elements for a few seconds after the Element have been generated in the browser because of this i facing a problem ,Since element has come into existence the web-driver try to click the element but the click is received by Block UI . I have tried to use the wait Until but i did not help ,Since i can find isClickAble in C# webdriver

   var example = _wait.Until<IWebElement>((d) => d.FindElement(By.XPath("Example")));
   var example2 = _wait.Until<IWebElement>(ExpectedConditions.ElementIsVisible(By.XPath("Example")));
example.click();
example2.click();

Is there C# equivalent for isClickAble ,Thanks in advance

Answer 1

Well taking a look into the Java source, tells me it is basically doing two things to determine if it's 'clickable':

https://code.google.com/p/selenium/source/browse/java/client/src/org/openqa/selenium/support/ui/ExpectedConditions.java

Firstly, it'll check if it's 'visible' by using the standard ExpectedConditions.visibilityOfElementLocated, it'll then simply check if the element.isEnabled() is true or not.

This can be condensed slightly, this basically means (simplified, in C#):

1. Wait until the element is returned from the DOM
2. Wait until the element's .Displayed property is true (which is essentially what visibilityOfElementLocated is checking for).
3. Wait until the element's .Enabled property is true (which is essentially what the elementToBeClickable is checking for).

I would implement this like so (adding onto the current set of ExpectedConditions, but there are multiple ways of doing it:

/// <summary>
/// An expectation for checking whether an element is visible.
/// </summary>
/// <param name="locator">The locator used to find the element.</param>
/// <returns>The <see cref="IWebElement"/> once it is located, visible and clickable.</returns>
public static Func<IWebDriver, IWebElement> ElementIsClickable(By locator)
{
    return driver =>
    {
        var element = driver.FindElement(locator);
        return (element != null && element.Displayed && element.Enabled) ? element : null;
    };
}

Usable in something like:

var wait = new WebDriverWait(driver, TimeSpan.FromMinutes(1));
var clickableElement = wait.Until(ExpectedConditions.ElementIsClickable(By.Id("id")));

However, you might have a different idea of what clickable might mean, in which case, this solution may not work - but it is a direct translation of what the Java code is doing.