Get a vaule by key from nested hashtable
<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>
