web scraping con c # ejemplo de código

Ejemplo: c # web scraping obtener imágenes de una URL específica

static void browser_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
    WebBrowser browser = (WebBrowser)sender;
    HtmlElementCollection collection;
    List<HtmlElement> imgListString = new List<HtmlElement>();
    if (browser != null)
    {
        if (browser.Document != null)
        {
            collection = browser.Document.GetElementsByTagName("img");
            if (collection != null)
            {
                foreach (HtmlElement element in collection)
                {
                    WebClient wClient = new WebClient();
                    string urlDownload = element.GetAttribute("src");
                    wClient.DownloadFile(urlDownload, urlDownload.Substring(urlDownload.LastIndexOf("https://foroayuda.es/")));
                }
            }
        }
    }
}

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