Hi CJ,
By setting the ‘SortingField’ property and have call ‘SortTreeViewItem’ method we can sort the TreeView based on fields. We have attached the sample for your reference.
[Sample link]:
http://www.syncfusion.com/downloads/Support/DirectTrac/92536/CS1955209427.zipPlease let us know if you have any queries.
Regards,
Karthikeyan.