Question

So i am sending a httpwebrequest to a particular website and i need an image from that website but this image loads 3-5 seconds after the the request is complete so the source does not contain the image, i want to make some kind of a delay so i can get the response a few seconds later, this is my code:

HttpWebRequest req1 = (HttpWebRequest)WebRequest.Create("url");            
            using(var httpResponse = req1.GetResponse())
            {
                using (var ResponseStream = httpResponse.GetResponseStream())
                {
                    if (ResponseStream != null)
                    {
                        using (StreamReader sr = new StreamReader(ResponseStream))
                        {

                            string response = sr.ReadToEnd();                            
                            var doc = new HtmlAgilityPack.HtmlDocument();
                            doc.Load(ResponseStream);

                            foreach(HtmlNode node in doc.DocumentNode.SelectNodes("src"))//it's not working because the source does not contain the image
                            {
                                pictureBox1.ImageLocation = node.ToString();
                            }
                        }
                    }
                }
            }

Answer 1

What is likely happening is that the page is loaded then a Javascript event fires and makes a separate call to the server to load the image. Delaying your HTTP request will not help you achieve what you desire.

I would suggest

1. opening the page in Google Chrome, and pressing Ctr-Shift-J to bring up the Developer Tools.
2. Click on the network tab.
3. Click on “Images” at the botton of the Developer’s tool.
4. Click on the network tab.
5. Navigate to the page with your image. You’ll see a request for the image in Developer Tools.
6. Try and figure out where that request is being created within the Javascript.

If you provide a link to the page you’re talking about, myself or others might be able to clarify further.