Often, working with the Kendo events is difficult, because the events lack any kind of context. For example, the Change event should also pass back OldValue and NewValue, in case you need to do any additional comparative work on your own, without having to figure out how to get back to the DataItem and figure it out for yourself.

Also, if you are handling a Grid row changed event, or cell changed event, at the very least you should be passing the Uid of the row that changed, so I can get it from the data source.