Showing content from https://webplatform.github.io/docs/dom/Event/beforeupdate below:
beforeupdate ยท WebPlatform Docs
beforeupdate Overview Table Synchronous No Bubbles No Target dom/Element Cancelable No Default action ?
## Notes
Remarks
If the onbeforeupdate event is canceled, the onafterupdate event does not fire. Signals that the data contained in an object has changed. To invoke this event, do one of the following:
- Cause an object to receive focus, change the value of the object, and either cause the object to lose focus or force the document to unload.
The pEvtObj parameter is required for the following interfaces:
- HTMLAnchorEvents2
- HTMLAreaEvents2
- HTMLButtonElementEvents2
- HTMLControlElementEvents2
- HTMLDocumentEvents2
- HTMLElementEvents2
- HTMLFormElementEvents2
- HTMLImgEvents2
- HTMLFrameSiteEvents2
- HTMLInputFileElementEvents2
- HTMLInputImageEvents2
- HTMLInputTextElementEvents2
- HTMLLabelEvents2
- HTMLLinkElementEvents2
- HTMLMapEvents2
- HTMLMarqueeElementEvents2
- HTMLObjectElementEvents2
- HTMLOptionButtonElementEvents2
- HTMLScriptEvents2
- HTMLSelectElementEvents2
- HTMLStyleElementEvents2
- HTMLTableEvents2
- HTMLTextContainerEvents2
- HTMLWindowEvents2
Syntax Standards information
There are no standards that apply here.
Event handler parameters
-
pEvtObj [in]
-
Type: ****IHTMLEventObj****
Attributions
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