我编写了一个C＃扩展方法，该方法接受元素的By，并尝试等待长达5秒钟的时间，同时反复轮询页面以查看元素是否存在。

代码如下：

public static IWebElement FindWithWait(this ISearchContext context,By by)
{
    var wait = new DefaultWait<ISearchContext>(context)
    {
        Timeout = TimeSpan.FromSeconds(5)
    };
    wait.IgnoreExceptionTypes(typeof(NoSuchElementException));
    return wait.Until(ctx =>
    {
        Console.WriteLine($"{DateTimeOffset.Now} wait is trying...");
        return ctx.FindElement(by);
    });
}

出于这个问题的目的，这是我如何调用方法：

    Console.WriteLine($"{DateTimeOffset.Now} before");
    try 
    {
        var element = driver.FindWithWait(By.Id("not_in_page"));
    }
    catch (Exception ex) 
    { 
        Console.WriteLine($"{DateTimeOffset.Now} exception:" + ex);
    }  
    Console.WriteLine($"{DateTimeOffset.Now} after");

鉴于页面中不存在ID为#not_in_page的元素，并且Until()方法的默认轮询时间为500毫秒，我希望代码可以打印出以下内容： / p>

11/4/2019 11:20:00 AM +02:00 before
11/4/2019 11:20:00 AM +02:00 wait is trying...
11/4/2019 11:20:01 AM +02:00 wait is trying...
11/4/2019 11:20:01 AM +02:00 wait is trying...
11/4/2019 11:20:02 AM +02:00 wait is trying...
11/4/2019 11:20:02 AM +02:00 wait is trying...
11/4/2019 11:20:03 AM +02:00 wait is trying...
11/4/2019 11:20:03 AM +02:00 wait is trying...
11/4/2019 11:20:04 AM +02:00 wait is trying...
11/4/2019 11:20:04 AM +02:00 wait is trying...
11/4/2019 11:20:05 AM +02:00 wait is trying...
11/4/2019 11:20:05 AM +02:00 after

但是，我实际上得到的是：

11/4/2019 11:20:00 AM +02:00 before
11/4/2019 11:20:00 AM +02:00 wait is trying...
11/4/2019 11:21:00 AM +02:00 exception: OpenQA.Selenium.WebDriverException: The HTTP request to the remote WebDriver server for URL ######### timed out after 50 seconds. ---> #########
11/4/2019 11:21:00 AM +02:00 after

请注意，轮询似乎仅发生一次，并且在开始轮询后60秒钟抛出了异常。

wait.Until()是否需要等待60秒？我该如何代替它使其忽略并每500毫秒轮询一次？