Thank you for contacting us.
Based on the provided information it seems that your scenario could be achieved with self-referenced hierarchical RadGrid as shown in this
online demo application and as described in this
About the DML support, automatic operations are not supported with this type of hierarchy, however, you could implement manual CRUD operations as shown in this
I hope the provided information helps. Let me know if you need further assistance.
All the best,
the Telerik team
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