Hi Michael,
Thanks for contacting Syncfusion Forums.
Query: No records to display
We are able to reproduce the reported issue(property set method not found) in your sample. This issue will occur when we do not use “set” method for model class properties. Please check the below common forum link for the reported issue,
Using set method for “StringId” and “ParentStingId” resolve the issue and data get bound to the Tree Grid properly.
Kindly get back to us for further assistance.
Regards,
Padmavathy Kamalanathan