I have a page that has a treeview that lists our different zip files of data that users can download. When the user click a zip file to download and they are not logged in they are redirected to the login page. After they login they are redirected to the page where my zip files are listed in my treeview. The issue now is the page reloaded and the tree is collapsed. How can I open the tree to the specific node the user clicked on? I can put the node text in a query string and page it back and forth but how can I take the query string and open the treeview?