How to call a button click event from another method
<p>How can I call <code>SubGraphButton_Click(object sender, RoutedEventArgs args)</code> from another method? </p>

<pre><code>    private void SubGraphButton_Click(object sender, RoutedEventArgs args)
    {
    }

    private void ChildNode_Click(object sender, RoutedEventArgs args)
    {
       // call SubGraphButton-Click().
    }
</code></pre>
