C# treeView CheckBoxes?

[Nexusfactor]

I have a treeView with root nodes and child nodes. Now what if I wanted verify that Apples and Oranges are checked.

I named the Treeview, tv1. and the Node names I left the same.

http://s831.photobucket.com/albums/zz238/Oasisfactor/?action=view&current=menu.jpg