TreeView in FormView

[Justin]

I have a hierarchical treeview in a formview.  Is is possible to data bind to the treeview (two-way)?

ex:

               

                <telerik:RadTreeView ID="rtvCategories" runat="server"
                    DataSourceID="ldsCategories"
                    DataFieldID="ID" DataFieldParentID="ParentID"
                    DataTextField="Name" DataValueField="ID"
                    SelectedValue='<% Bind("CategoryID") %>'>
                </telerik:RadTreeView>
                <asp:LinqDataSource ID="ldsCategories" runat="server"
                    ContextTypeName="DataAccess.DataContext" TableName="Categories" >
                </asp:LinqDataSource>

I know you can't do it the way I do it above since "SelectedValue" is readonly.  Is there a work around?