Adding Checkbox in AdvanceDatagrid Tree

[Prakasam]

Hi All,
This there any way to add checkbox in the advancedDataGrid
tree
control , In there check box should be created only for leaf node,
Using GroupRenderer i add checkboxes but which added all the nodes.In
GroupRenderer class is when createChildren method is triggered the
data object in null. so there is no possible way to find whether it's
parent or leaf node. Please give your valuable idea to solve this
issue.

Thanks and Regards,
Prakasam