The only problem I see - seems you need to check in firebug how many requests sends in parralel using such construction.
So do you mean parallel requests will cause the problem?
Is there any doc suggesting how should we configure or how many controls we should have (max.) to prevent such error from happening?
yes.. you could use the queue. but I think you could try to work under your page code in order to minimize request count itself. Queue will only order them but all of them will be fired. And seems this is not a good design in general.
Queue will only order them but all of them will be fired.
In fact, that is dependent on actual queue settings.
I would try on the queue.
Dear ilya_shaikovsky, I know it is not a good design indeed. But there are controls that we need for so many events.
Thanks for all the suggestions and reply.