to set treeview Focus for selected node in asp.net

how should i pass the node value of treeview to set focus in selected node
string nodeValue = e.Node.Value; foreach (TreeNode node in tvTestViewQuery.Nodes) { if (node.Value == nodeValue) { //TreeView find_node = tvTestViewQuery.FindNode(nodeValue); TreeView findnode = new TreeNode(nodeValue); ???? findnode.Focus();
tvTestViewQuery.Focus(); }
}