I am trying to create a Heirachical Grid with a detail and subdetail line ( Something like http://demos.telerik.com/ASPNET/Prometheus/Grid/Examples/DataEditing/ThreeLevel/DefaultCS.aspx). My addition requirement is that, while I insert a new record in to the child (detailtable), in the onInsertCommand event I need to pass a Value from the Parent Table also which is ReadOnly.Could you please let me know about how I can retrieve the Parent Table Read only field in the Insert Mode? Thanks for your Quick response.