The above example uses an oData backed service that returns JSON data.
Please check the linked example and let me know if you have questions about the suggested implementation.
Regards,
Petar
Progress Telerik
Virtual Classroom, the free self-paced technical training that gets you up to speed with Telerik and Kendo UI products quickly just got a fresh new look + new and improved content including a brand new Blazor course! Check it out at https://learn.telerik.com/.