Making parent & child behaviour in tree view

["Saba Khan" <s_i_uk hotmail com>]

Hi,
I want to become parent child behaviour in tree view. When i select the 
child toggle button , parent is selected by default itself if it does not 
selected already. But when i use to select parent toggle button only parent 
should be selected in that way not rest of childs.
So how i can make this relation in tree view.
Hope for the positive and prompt reply.

Regards,
saba khan

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