Returns or sets a Variant that represents the value of the onbeforeupdate event. For example, the Variant can represent a macro or procedure call that executes when the event has occurred. Read\write.
expression.onbeforeupdate
expression Required. An expression that returns a DispFPHTMLDocument object.
The following example, which appears embedded in the <head> section of an HTML document, displays a message to the user before the current page is updated.
<head>
<title>onbeforeupdate Example</title>
<script id=clientEventHandlersVBS language=vbscript>
<!--
Sub DisplayMessage
'Displays message to user
MsgBox "This message is displayed when the user updates the document."
End Sub
-->
</script>
</head>
The <p> section code below calls the DisplayMessage procedure located in the <head> section of the document. When the document is updated, a message will be displayed.
<body>
<p onbeforeupdate = "DisplayMessage"></p>
</body>
The following line of code sets the onbeforeupdate attribute to the DisplayMessage procedure call. The index value zero (0) denotes the <p> tag as the only <p> element in the current page and the only <p> element in the all collection.
ActiveDocument.body.all.tags("p").item(0).onbeforeupdate = "Display Message"