confirm
If true, it presents a confirmation dialog box for the user to confirm the action before proceeding. If the user clicks on the Cancel button in the confirmation dialog box or closes the confirmation dialog box without clicking on the OK button, the action to be performed by the button weblet is cancelled.
Default value
false() –No confirmation dialog box.
Valid values
true(), false() or a valid expression.
Example
This example shows the confirmation dialog box you would add to a Delete button: