C#：等待元素在 Selenium 中包含特定属性

Question

I am waiting for an element Attribute aria-sort to equal " descending ".

Currently using C# Selenium webdriver. How do I conduct this? I do not see AttributeContains in Visual Studio.

How to wait for a element to contain a specific attribute through Selenium and WebDriverWait?

boolean status = new WebDriverWait(driver, 20).until(ExpectedConditions.attributeContains(By.xpath("//div[@class='model-holder']/span[contains(.,'200K')]"), "class", "model-ready"));

Answer 1

Additionally to the way presented in the post you have mentioned in your question you can also do the following:
Let's say that element can be uniquely located by the following XPath //tag[@class='theClass']
So when this element will have aria-sort attribute equals to descending , then this element can be located by this XPath: //tag[@class='theClass' and(@aria-sort='descending')]
So you can simply use regular ElementExists ExpectedConditions as following:

boolean status = new WebDriverWait(driver, 20).until(ExpectedConditions.ElementExists(By.xpath("//tag[@class='theClass' and(@aria-sort='descending')]"));

However this approach is not really good since it is not general enough, so it's much better to create custom ExpectedConditions according to the element attribute as described here

Answer 2

I have Written an extension method in C# Selenium, this will help to wait until a particular element / attribute is visible.

Call This method like: WaitUntilElementIsVisible(driver, By.Id("DemoId")); // example

public static bool WaitUntilElementIsVisible(IWebDriver browser, By by)
{
            int attemptToFindElement = 0;
            bool elementFound = false;
            IWebElement elementIdentifier = null;
            do
            {
                attemptToFindElement++;
                try
                {
                    elementIdentifier = browser.FindWebElement(by);
                    elementFound = (elementIdentifier.Displayed && elementIdentifier.Enabled) ? true : false;
                }
                catch (Exception)
                {
                    elementFound = false;
                }

            }
            while (elementFound == false && attemptToFindElement < 100);

            return elementFound;
}