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on_before_delete
================

on_before_delete(item)

**domain**: client 

**language**: javascript

**class** :doc:`Item class </refs/client/item_api>`

Description
===========

Occurs before an application deletes a record.

The ``item`` parameter is an item that triggered the event.

Write an on_before_delete event handler to take specific action immediately 
before an application deletes the active record in an item. on_before_delete is 
called by :doc:`delete <m_delete>` method before it deletes the record. If the 
event returns false, the delete is aborted. 

See also
========

:doc:`Modifying datasets </programming/data/modifying_datasets>`
