dropdowncheckbox controls

Question

How to use drop down with in check box controls. single drop down with in more than check box .

 

ex: drop down with in tree view check box control..3 parent nodes.

1st parent node select time automatically deselect 2nd and 3rd parent and child node .

2nd parent node select time automatically  deselect 1st and 3rd parent and child node.Its same work follow 3rd parent node.

How its work .Please help me..