<asp:TreeView ID="TreeViewStruttura" runat="server" OnSelectedNodeChanged="TreeViewStruttura_SelectedNodeChanged" SkinID="SampleTreeView" CssSelectorClass="PrettyTree">
        <ParentNodeStyle Font-Bold="False" />
        <HoverNodeStyle Font-Underline="True" ForeColor="#5555DD" />
        <SelectedNodeStyle Font-Underline="True" ForeColor="#5555DD" HorizontalPadding="0px"
            VerticalPadding="0px" />
        <NodeStyle Font-Names="Tahoma" Font-Size="10pt" ForeColor="Black" HorizontalPadding="0px"
            NodeSpacing="0px" VerticalPadding="0px" />
    </asp:TreeView>