Is there in ExtJs 3 JsonStore event for when store is loaded?

I have to update my disp开发者_运维百科lay when JsonStore has loaded all records, is there event for this event?

The load event will work:

store.on('load', function(store, recs, opt){
     //update your display here
}, this);

The "load" event is what you are looking for. See the online documentation :

http://dev.sencha.com/deploy/ext-3.3.0/docs/?class=Ext.data.JsonStore