You have to be more clearer on 'not working' part.
Using UpdatePanel, whatever you put into it will get refreshed when it is triggered for an update. Have a sample example and details about the same here and go through the samples on how to use it:
Here you go:
UpdatePanel control[
^]
UpdatePanel Class[
^]
All you need to know with sample code is present and explained.
Nutshell: You need to put your content in an Udpate Panel to enable partial rendering.