I have a Menu class that uses Web.sitemap as data source. It is on master page and has 10 Menu buttons. When I press, say, the last button, it will navigate to a main page of articles and this Menu button's background color turns white "highlighted". I have
a TreeView on this page for navigating to different article page. When I press a leafnode on this Treeview to go to another page, the Menu button is not highlighted anymore. How can I keep its background color in white "highlighted" before I press another
Menu button? Thank you.
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