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: