Thank you for using our services.
In Sitefinity we use RadMenu, we have made some changes and you can find it under Sitefinity as SiteMenu. We use RadMenu API, and help that could be find here
As for the datasource, we use SiteMapDataSource control which binds the pages that have been created by a user.
|<asp:SiteMapDataSource ID="SiteMapDataSource1" runat="server" ShowStartingNode="false" />
The idea is that if you want to use RadMenu control that could be found in RadControls section of the toolbox, you should have SiteMapaDataSource control in the same naming container.
Steps: Drag and drop SiteMapDataSource control on the page ( where ID="SiteMapDataSource1") the drag and drop RadMenu control, enter in edit mode of the control and under Data set DataSourceID property to "SiteMapDataSource1" ( the same as the ID of SiteMapDataSource control)
I hope this helps.
the Telerik team
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