hi i am using asp.net 3.5
I have a treeview, which shows continents and contries of the world.

contries shown as leafnode(parent node continent) - contry node contains
countryname as text and countryid as value.

can I locate the leafnode that contains a particular countryid.

ie., I have a countryId=25, When a button clicked, I want to change the
appearance of the leafnode that corresponds to this countryId=25.

HOW TO SEARCH IS MY QN?