title: Removing all grid's children in WPF
body: <p>I'm trying to remove all children (and sub-children) of a <code>Grid</code> in WPF (I'm really new to the whole WPF business). Is there a good way of doing it programmatically? I need to do this so that I could leave an empty canvas (<code>Grid</code>) at one point and draw other stuff on it.</p>