C# multiple selection listbox move
<p>What I have is two listboxs.</p>

<p>In listbox1 I want the user to be able to click a button and move all selected items to listbox two.  Also if there is nothing selected i dont want the button to work.  Anybody have any suggestions?</p>

<p>listbox1.items.add(listbox2.selecteditems); just moves over (collection) to the 2nd listbox.</p>
