Is there a way to display a "loading screen" for dataGrid?

Hi All,
I have a dataGrid that is loading a lot of data and it takes a good 5 seconds before all the data is loaded and displayed into the dataGrid. I would like to show a loading screen that has a nice little loader animation when the data is being downloaded and processed by the dataGrid.
I was looking at possible events that the dataGrid dispatches that might help me but I am unsure of which ones to use. Can anyone give me a pointer please?
Thanks,
Colin

What is slow? Fetching the data, post-processing it on the client, or rendering it?
If it's the fetch or pre-processing, you can put up a simple loading screen overlay by using rawChildren (I believe). We do something similar.
If it's rendering, Flash Player is already busy rendering--it won't have time to render an additional loading screen. But you should not be spending that much time rendering anyway.
The events you need to react to will depend on where the slowdown occurrs.

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