How do I scrape information off ASP.NET websites when paging and JavaScript links are being used?

Question

I have been given a staff list which is supposed to be up to date but it doesn\'t match an intranet People Finder which is written in ASP.NET.

As the information is

Answer 1

You could post a variable to the HTML page to go through the paging.

string lcUrl = "http://www.mysite.com/page.aspx";

HttpWebRequest loHttp =

   (HttpWebRequest) WebRequest.Create(lcUrl);


// *** Send any POST data

string lcPostData =

   "gvEmployees=" + HttpUtility.UrlEncode("Page$2");

loHttp.Method="POST";

byte [] lbPostBuffer = System.Text.           

                       Encoding.GetEncoding(1252).GetBytes(lcPostData);

loHttp.ContentLength = lbPostBuffer.Length;

Stream loPostData = loHttp.GetRequestStream();

loPostData.Write(lbPostBuffer,0,lbPostBuffer.Length);

loPostData.Close();

HttpWebResponse loWebResponse = (HttpWebResponse) loHttp.GetResponse();

Encoding enc = System.Text.Encoding.GetEncoding(1252);

StreamReader loResponseStream =

   new StreamReader(loWebResponse.GetResponseStream(),enc);

string lcHtml = loResponseStream.ReadToEnd();

loWebResponse.Close();

loResponseStream.Close();

Then parse out the data you need from the string.

--EDIT--

Here is what I would try (something similar) where all of the post data is sent:

string lcPostData =

       "__EVENTTARGET" + HttpUtility.UrlEncode("gvEmployees"); &
"__EVENTARGUMENT" + HttpUtility.UrlEncode("Page%242"); &
"__VIEWSTATE" + HttpUtility.UrlEncode("");