What is the best way of showing progress on an Ajax call?

Question

I have an Ajax call that updates 5,000 records in a database so this takes a lot of time. I have an Ajax \"Loading image\" showing that something is happening, but I am loo

Answer 1

I would fire an Ajax callback once every n milliseconds that can query on how much is done (e.g. number of records updated) and use that to display a progress bar. Something like the way this works.