Can I change state with textfield?

Hello Everyone,
I would like to be able to change a state as soon as the user
types some thing in a text field. I have the change event wired up
the text field. I am able to show Alert box whenever the text filed
gets click. But when I set state to be loaded, I am unable to load
the state.
Can you guys help me, please.

got it working:
this.currentState = 'xxx';

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Can I change state with textfield?

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