I would like to see an event added that gets called before populate makes the call to the server (ie. just before the .ajax call).

This would enable easy setup of caching, modification of parameters or even customization of urls according to query parameters. I manually added code to do this to the grid base js, and now have really nice caching of previously requested pages :)... I think this would be usefull for a lot of different applications. 

My beforeDataRequest method takes 3 parameters: url, arguments, callback

url -> The url of the server call

arguments -> The arguments being passed to the server.

callback -> The success callback.

If the method returns true, the ajax call is performed, if false it is not. This has meant I am able to catch server queries and check if I have already received the page... If I have a retrieve the data from the cache and call the supplied callback... Nice and fast 🙂

Thanks!