title: How Do I Set An Option in GetFiles to Include SubDirectories
body: <p>I'm using the code below to try and list all the files in a directory and all its sub-directories. I'm getting the ones in the &quot;root&quot; directory but not the others. Investigation has told me there's a search option I have to set for the GetFiles but I can't find what that option is or how to set it. I'd appreciate any help.</p>
  <pre><code>        For Each foundFile As String In My.Computer.FileSystem.GetFiles(strArchRoot)
              ListBox1.Items.Add(foundFile)
          Next
  </code></pre>