show in treeview style
<p>my input</p>

<pre><code>Sore | aye
A    |   1 
A    |   2
A    |   3
B    |   1
B    |   2
</code></pre>

<p>outPut:   and I want to sort the top table into the underneath treeview </p>

<pre><code>A
   1 
   2 
   3
B  
   1
   2 
</code></pre>
