I am using the parameter

editurl:'nicescript.php'

to handle the delete of a record. When the user select a row and press the delete icon, a window appears asking to confirm the delete of the row and then the script is called with the ID of the row to be deleted.

How can I display to the user any error returned by the script? I mean, the script can try to delete a row, but the deletion is prohibited by a database constraint, so I have to warn the user he cannot delete the record. How can I do it?

Leandro