In my application I have two grid panel. GP1 and GP2.

In GP1, I am using proxy and hitting url of server. GP2 extend GP1 and in GP2, I don't want any proxy as data of GP2 are not coming from server.

Now, when I click on any column of GP2 it fires server url of GP1 (call proxy of GP1). How to avoid proxy of GP1 when I do sorting on GP2