无法通过URL获取正确的网页源代码-C＃

Question

I'm trying to get the source code of google's Search by Image page. So, the Search by Image URL is https://www.images.google.com/searchbyimage?image_url=x x is the image URL.

I use that code, but the source code I get is the source code of google images, not the source code of the specific search result webpage.

public static string GetSourceCode(string url)
{
    HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(url);
    myRequest.Method = "GET";
    WebResponse myResponse = myRequest.GetResponse();
    StreamReader sr = new StreamReader(myResponse.GetResponseStream(), System.Text.Encoding.UTF8);
    string result = sr.ReadToEnd();
    sr.Close();
    myResponse.Close();

    return result;
}

Answer 1

When you execute a Google Search, Google only returns a bit of HTML (which you see, when you open your result-string in a browser). The JavaScript, in your result, is run to load the actual search results.

As a side note, in Chrome (at least, that's where I have actually tested it) you can watch the JavaScript run, if you set a breakpoint at 'load'.