A tip to prevent others wasting as much time as I did. The documentation section "Binding WebGrid to a WebHierarchicalDataSource" is missing a key point.
Set the ViewType off the DisplayLayout object to Hierarchical.
or in code
UltraWebGrid1…
I am trying to use the ultrawebmenu with a WebHierarchialDataSource in this case 2 SqlDataSource objects (Parent-Child) Has anyone attempted this and if so could they provide an example? The type of Menu I want is the drill down version.
Learn to configure the WebHierarchicalGrid and the WebHierarchicalDataSource to present hierarchical data to the user. This example explains how to configure DataRelations and DataViews inside the data source control. Also learn …
Learn to provide data to the WebHierarchicalGrid with a ViewModel class. This approach uses the ObjectDataSource and allows you to feed data to the grid from any data provider. See how to customize the page so multiple …