c# resim linki alma

HtmlElementCollection theElementCollection;

theElementCollection = web1.Document.GetElementsByTagName("img");

foreach (HtmlElement curElement in theElementCollection)

{

  if (curElement.GetAttribute("src").ToString().Contains(@"http://website.com/avatars"))

 {

    pictureBox1.ImageLocation = curElement.GetAttribute("src").ToString();

 }

}