title: Get a vaule by key from nested hashtable
body: <p>I have a nested Hashtable that looks like this.</p>
  
  <pre><code>  Hashtable table = new Hashtable();
    Hashtable subtable = new Hashtable();
    Hashtable options = new Hashtable();
  
    options.Add("file","foo");
    subtable.Add("post_option",options);
    table.Add(0,subtable);
  
    //foreach here
  </code></pre>
  
  <p>This is what I have to work with, and I can't get any father up the chain to change what it is.  So what I need to be able to do is get "foo" by calling for the key "file" starting from the "table" hashtable.  I have tried every combo of foreach and .Keys and .Values.  I just can't seem to get it lol.  Thank you </p>