Filter layer names as user types in the keyword

Hello all,
I am quite new to the Flex API. I am working on already built MapServices Widget. I am adding a text box where a user types a desired layer out of the long list. The idea is as user types in... the layers matching the keywords should only become visible. the rest should be hidden...

I have searched a lot but couldn't find something similar.

Can anybody guide me to the right path, please.

Cheers
A.

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