Strong use of Watin, IE remains an open issue

Question

I use Watin in a C # console application to crawl websites, five console applications are running at the same time. The reason I partially use Watin as a crawler is because several websites use javascript (or ajax) to set the content of the page.

The following is an example code for counting the number of pages:

        Settings.Instance.MakeNewIeInstanceVisible = false;
        using (var browser = new IE(commentLink, true))
        {
            browser.Link(Find.ByUrl(commentLink)).WaitUntilExists(20);

            Span commentSpan = browser.Span("COUNT_TOTAL");

            if (commentSpan.Exists)
            {
                int commentCount;
                if (Int32.TryParse(commentSpan.InnerHtml, out commentCount))
                {
                    return commentCount;
                }
            }
        }

My problem is that after starting these 5 console applications for some time (90 minutes) many IE instances remain open (due to a timeout or error or IE is busy), so the system is quite slow and requires a reboot.

How can I change my code so that this does not happen, and so that my applications remain efficient?

Answer 1

, , IE . using, using, , .

:

new IE(commentLink, true)

using, try...catch. , , :

Settings.Instance.MakeNewIeInstanceVisible = false;
using (var browser = new IE(true))
{
    browser.GoTo(commentLink);

    browser.Link(Find.ByUrl(commentLink)).WaitUntilExists(20);

    Span commentSpan = browser.Span("COUNT_TOTAL");

    if (commentSpan.Exists)
    {
        int commentCount;
        if (Int32.TryParse(commentSpan.InnerHtml, out commentCount))
        {
            return commentCount;
        }
    }
}