I wanted to display a warning that changes will be lost on click of breadcrumbs.
i understood that warn about changes will work if the associated VO is dirty. In my case all the associated VOs are used to read not to write.
DB changes are happened through other Application modules and the page that i am mentioning is responsible to commit the transaction.
If the user navigates away by clicking the breadcrumbs without clicking apply button the changes done to DB will be reverted.
Anybody encountered the same issue? any solution.