title: vb.net find line that contain in a string
body: <p>If I can find line that contains word in a file </p>
  
  <pre><code>File.ReadAllLines(html).FirstOrDefault(Function(x) x.Contains("something"))
  </code></pre>
  
  <p>How can I find all lines that contains in a string 
  for example I made an webresponse </p>
  
  <pre><code>    Dim rt As String = "http://www.somesaite.com"
      Dim wRequest As WebRequest
      Dim WResponse As WebResponse
      Dim SR As StreamReader
      wRequest = FtpWebRequest.Create(rt)
      WResponse = wRequest.GetResponse
      SR = New StreamReader(WResponse.GetResponseStream)
      rt = SR.ReadToEnd
  </code></pre>
  
  <p>How to find lines that contains in <code>rt</code> ?</p>