This is a two part question, first how do I know what controller parameters are needed fro the update action for the tree view (Same question applies to all Kendo controls) No error is thrown so I don't known what route (route signature) to build.
Second, could be related to the first my action is public JsonResult Update([DataSourceRequest] DataSourceRequest request, ProductViewModel product) but when I do a drag and drop the action isn't fired. I have found when this happens typically it is because I don't have a matching signature for the route... but again no error is thrown so I can't debug it.
Thanks in advance and sorry if I am not using the correct terminology for this.