如何从另一个类调用IWebElement方法？

Question

I have a program in VS using C# with Selenium that inputs data into a textbox of a certain website. And I found this method online that waits until the element exists.

Tried calling the WaitUntilElementExists method from another class but it doesn't work. Don't know if I missed something. Appreciate if you could help me out. Thanks in advance!

public static void InputTextbox(IWebDriver wDriver, string sElement, string sValue, int iIndex)
    {
        //calling WaitUntilElementExists method
        var wait = new WebDriverWait(wDriver, TimeSpan.FromSeconds(20));
        wait.Until(ExpectedConditions.ElementExists(By.Name("value")));

        //input text box
    }



public static class WaitForElement
{
    public static IWebElement WaitUntilElementExists(this IWebDriver wDriver, By elementLocator, int iTimeout)
    {
        try
        {
            if (iTimeout > 0)
            {
                var wait = new WebDriverWait(wDriver, TimeSpan.FromSeconds(iTimeout));
                return wait.Until(ExpectedConditions.ElementExists(elementLocator));
            }
            return wDriver.FindElement(elementLocator);
        }
        catch (NoSuchElementException)
        {
            Console.WriteLine("Element with locator: '" + elementLocator + "' was not found in current context page.");
            throw;
        }
     }
 }

Answer 1

You have two options:

Use WaitUntilElementExists as regular static method

IWebElement element = WaitForElement.WaitUntilElementExists(driver, By.Name("value"), 20);

Or use it as extension method , call it using the IWebDriver instance

IWebElement element = driver.WaitUntilElementExists(By.Name("value"), 20);