Does any method to listen the control's binding model change or property change?

Hi Team,

Now I have a checkbox control and I want to do some action when it's property 'selected' is changed. It is binding with the model. Is there any method to listen the property change or binding model change? I saw there is 'attachModelContextChnage' method but after trying it doesn't work and I am not clear about its usage.

Thanks,

Mengchi