Check out http://apidocs.mendix.com/5/client/screen.html
It seems to be valid in version 5 as well.
EDIT: Kind of a hack, but instead of using JS, I often just refresh the context of the object (the dataview) via a Microflow (Change object, refresh in client). Of course, that works only when your content is within the context of another object.
Hi Mitchel, did you find any solution about this?