Why the slider's value change event is not getting triggered?

I am developing application with slider. When i change the value in the slider i need to trigger some event. How can i do that? While value change of slider i need to change the value of the label. If possible help me with some events.

Thanks in advance.

Regards,
Goutam Janardhanan

Set your slider to immediate:

slider.setImmediate(true);