How to raise a component event via script

Hi all i have a DateField in wich a set the text with the text property, and i would like to raise the CalendarLayoutChangeEvent event programmatically via the scripts code.
How can i do that?
Thanks.

Ok, i did it, but this is my code:
dispatchEvent(new Event(CalendarLayoutChangeEvent.CHANGE));
i tried also with:
data.dispatchEvent(new Event(CalendarLayoutChangeEvent.CHANGE));
where data is my DateField component, but it did not work.
Can you help me to find the right code?.
Thanks.
Skylander.

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