For that purpose, the developer can utilize the checkedChange event. It fires each time when the user selects a TreeView node checkbox.
In case of further questions do not hesitate to write back.
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/.