Confirm/decline box

[DecoresinSrl]

How to make a confirm/decline modal box or allert box first the serveraction ?

Example:
view customer table with delete button in grid

I want create a confirm modal box for the delete serveraction

Thank you

[psweb]

Delete button with alert

I have a table with all records and for each record a button link to the page for delete record To insert an alert with confirmation request, where should I intervene and how? On the button or on the delete page? Thank You

[DecoresinSrl]

SOLVED with variable