How to get the focus of particular UI Element

Hi All,
How to get the focus of particular UI Element in webdynpro Page,
I have a page where i am creating a ALV, I want to get that keyboard focus is on that element is there or not?
Can anyone please give some update?
Best regards,
Rohit

I would suggest try invoking REFRESH of ALV on the ON_CELL_ACTION event.
Below excerpt is from Thomas
The Events of inner UI elements are not exposed directly as they normally would be if they were standalone. Generally you can capture them using either the
ON_DATA_CHECK:
http://help.sap.com/saphelp_nw70ehp1/helpdata/en/c8/6c80dbedfe42d1a93f8e6df1d7244a/frameset.htm
This gets trigger for any press of ENTER, so it generally works like the Input Field onEnter.
You could also consider ON_CELL_ACTION:
http://help.sap.com/saphelp_nw70ehp1/helpdata/en/45/12093591152464e10000000a1553f7/frameset.htm
It is a higher level Event that encompasses both ON_DATA_CHECK and ON_CLICK.
if you want to capture & refresh on some hot key combination then refer to this thread
[https://www.sdn.sap.com/irj/scn/profile?editmode=true&userid=3760417]

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