I am looking for an solution for table row expansion and collapse through with button click.
if expand button is clicked it should expand all the rows in table and same vice versa for collapsing.
How to do it with javascript?. please help me with it.
Have you looked at the Splunk Dashboard Examples app - it gives lots of examples of how to do things in dashboards, either through standard techniques or Javascript.
https://splunkbase.splunk.com/app/1603/
@bowesmana Yes i had looked over it , i could see row expansion example but i here i want to do it with button click the row expansion and collosion .
Pretty sure you can combine some of the examples to get where you want to get to - using tokens from button clicks - there is a button click/token set example - and the expansion example should help you get there.