If you leave all of the code in the aspx page, the ShowMenu page works great. However, if I move the vb code out of the aspx page and put it in the code behind page, I get this error. Type DataRowView is not defined on this line: <asp:Repeater ID="Repeater1" runat="server" DataSource='<%# CType(Container.DataItem, DataRowView).CreateChildView("MenuLink") %>'>.

Why?

The solution was to include the <%@ Import Namespace="System.Data" %> at the top of the aspx page.