2.3.4.10 onbeforeupdate
Quirks Mode, IE7 Mode, IE8 Mode, IE9 Mode, and IE10 Mode (All Versions)
onbeforeupdate of
type Function
Occurs on a databound object before updating the associated data in the data source object.
To invoke, change the data that the object contains.
Bubbles: Yes
Cancelable: Yes
Context Info: None
This attribute is an extension to HTMLElement.
See also onafterupdate.