RadcomboBoxes cascading with Load on demand with WCF

Is it possible to use Load on Demand with WCF service for Cascading RadComboBox? Please let me know if there are any examples. I did开发者_如何学Cn't see any demo on Telerik website.

Thank you..

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I think you may combine following examples:

1. Load on demand: https://demos.telerik.com/aspnet-ajax/combobox/examples/loadondemand/wcf/defaultcs.aspx

2. Related combo boxes: https://demos.telerik.com/aspnet-ajax/combobox/examples/functionality/multiplecomboboxes/defaultcs.aspx

3. Overview: http://www.telerik.com/help/aspnet-ajax/combo_loadondemandoverview.html