使用Pagefactory在页面上存在硒c＃查找元素

Question

I am migrating my selenium scripts to PageFactory and currently stuck with find if an element exist on the page

My current implementation is

public bool IsElementExist(string element)
        {
            try
            {
                Driver.FindElement(By.XPath(element));
                return true;
            }
            catch (NoSuchElementException)
            {
                return false;
            }
        }

My page has multiple items on its basket and if I need to delete all/some of the item. Everytime I delete the page refreshes, but the Pagefactory FindsBy is not getting refreshed and retains the very first value. Any assistance please.

Answer 1

When you have multiple elements matching a given locator, the findElement() method simply picks the first one and returns the corresponding WebElement. This could be confusing sometimes, because you might interact with a different element unintentionally.

A slightly better implementation of your function would be as below (example in Java but works similarly in C#):

    public Boolean objectExists(By by) {
        int numberOfMatches = driver.findElements(by).size();       
        if(numberOfMatches == 1) {
            return true;
        }
        else {
            // 0 matches OR more than 1 match
            return false;   
        }
    }

Not sure if this is directly related to your issue, but worth a try.

Answer 2

Below I am performing a wait but it provides an example of how you can pass an IWebElement to find an object and perform an action. The method you provided is going to expect you to provide the XPath as a string rather than the name of an already identified element on the page.

// Wait Until Object is Clickable
    public static void WaitUntilClickable(IWebElement elementLocator, int timeout)
    {
        try
        {
            WebDriverWait waitForElement = new WebDriverWait(DriverUtil.driver, TimeSpan.FromSeconds(10));
            waitForElement.Until(ExpectedConditions.ElementToBeClickable(elementLocator));
        }
        catch (NoSuchElementException)
        {
            Console.WriteLine("Element with locator: '" + elementLocator + "' was not found in current context page.");
            throw;
        }
    }

This lives in a BaseUtil.cs that I call from MyPageFunctionality.cs like this:

BaseUtil.WaitUntilClickable(btnLogin, 10);

Answer 3

Would this work?

  //call the method and pass the xpath. You can also create css, id etc. 

  page.WaitForElementNoLongerDisplayed_byXpath("//div[contains(@class, 'my-error-message')]");



   public static void WaitForElementNoLongerDisplayed_byXpath(string elementXpath)
    {
        try
        {
            _wait.Until(driver => driver.FindElements(By.XPath(elementXpath)).Count == 0);
        }
        catch (Exception)
        {
            LogFunctions.WriteError("Element is still displayed and should not be");
            TakeScreenshot("elementStillShown");
            throw;
        }
    }