The event occurs when some DB level error occurs, during data saving operations. It is relates to all operations: Insert, Update and Delete. It can be used to pass error info to the client side.

$conn->event->attach("onDBError",handlerFunc);

Parameters handlerFunc:

• $action - DataAction Object
• $exception - SQL related exception object

Availability:

• Available for Grid, TreeGrid, Tree, Scheduler, DataView, Form

Sample:

 //adds new xml as a child of default <action> tag which is passed to client side as response
function doOnDBError($action, $exception){
       $action->set_response_xml("<errorinfo>".((String)$exception)."</errorinfo>")
}
$conn->event->attach("onDBError",doOnDBError);