L'INTERFACE IHIERARCHICALENUMERABLE - BINDEZ VOS MENU/TREEVIEW AVEC VOTRE PROPRE SOURCE DE DONNÉES

    protected void Page_Load(object sender, EventArgs e)
    {
        // on bind notre treeview avec les fichiers/dossier contenu dans le dossier d:/www/
        tv1.DataSource = new FileSystem(@"d:\www\", true);
        tv1.DataBind();
    }


    <asp:TreeView ID="tv1" runat="server" ImageSet="XPFileExplorer" NodeIndent="15" ExpandDepth="1" EnableViewState="false">
        <ParentNodeStyle Font-Bold="False" />
        <HoverNodeStyle Font-Underline="True" ForeColor="#6666AA" />
        <SelectedNodeStyle BackColor="#B5B5B5" Font-Underline="False" HorizontalPadding="0px"
            VerticalPadding="0px" />
        <NodeStyle Font-Names="Tahoma" Font-Size="8pt" ForeColor="Black" HorizontalPadding="2px"
            NodeSpacing="0px" VerticalPadding="2px" />
            <DataBindings>
                <asp:TreeNodeBinding TextField="Name" />
            </DataBindings>
    </asp:TreeView>



---- Deuxieme solution possible en utilisant un FileSystemDatasource 

    <asp:TreeView ID="tv1" runat="server" ImageSet="XPFileExplorer" NodeIndent="15" ExpandDepth="1" DataSourceID="fsds1" EnableViewState="false">
        <ParentNodeStyle Font-Bold="False" />
        <HoverNodeStyle Font-Underline="True" ForeColor="#6666AA" />
        <SelectedNodeStyle BackColor="#B5B5B5" Font-Underline="False" HorizontalPadding="0px"
            VerticalPadding="0px" />
        <NodeStyle Font-Names="Tahoma" Font-Size="8pt" ForeColor="Black" HorizontalPadding="2px"
            NodeSpacing="0px" VerticalPadding="2px" />
            <DataBindings>
                <asp:TreeNodeBinding TextField="Name" />
            </DataBindings>
    </asp:TreeView>
    <test:FileSystemDataSource  runat="server" id="fsds1" rootPath="d:/www/" />