OpenEdge Development: Mobile Applications - Product ...

eforeDelete event
beforeDelete event
Fires before the JSDO, by means of a saveChanges( ) call following a remove( ) call,
sends a request the AppServer to delete a record.
Applies to: progress.data.JSDO class, saveChanges( ) method, table reference
property (JSDO)
The following parameters appear in the signature of the event handler function:
Syntax
function ( jsdo , record , request )
jsdo
record
request
A reference to the JSDO that is invoking the delete operation. For more
information, see the description of the jsdo property of the request object.
A reference to the temp-table record upon which the delete operation is about to
act. For more information, see the description of the jsrecord property of the
request object.
A reference to the request object returned before the delete operation begins. For
more information, see the description of the request object.
Example:
/* subscribe to event */
myjsdo.subscribe('beforeDelete', onBeforeDelete);
/* some code that would delete a record and send to the server */
var jsrecord = myjsdo.findById(myid);
myjsdo.remove();
myjsdo.saveChanges();
function onBeforeDelete( jsdo , record , request ) {
/* code to execute before sending request to the server */
};
See also: remove( ) method, subscribe( ) method, unsubscribe( ) method
OpenEdge ® Development: Mobile Applications 199