ASP.NET / C# : Look for phrase using remote web request

Using ASP.NET/C#, how can I test if a remote website contains a specified phrase?  This does NOT work:
  String strResult;
  WebResponse objResponse;
  WebRequest objRequest = HttpWebRequest.Create("");
  objResponse = objRequest.GetResponse();
  using (StreamReader sr = new StreamReader(objResponse.GetResponseStream()))
    strResult = sr.ReadToEnd();
  if( strResult contains "illustrative examples") {
    Console.WriteLine("Phrase Found");
  else {
    Console.WriteLine("Phrase Not Found");

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käµfm³d 👽Commented:
There is no contains keyword in C#. You need to call "contains" as a method:

if( strResult.Contains("illustrative examples")) {

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One thing to keep in mind is that some web pages add content to the view via Javascript. Your WebClient isn't going to run that Javascript when it downloads the page, so you may only be downloading part of a page. This may or may not be a factor here, but it's something to keep in mind.

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