propertyName Property

Sets or retrieves the name of the property that changes on the object .

Syntax

event.propertyName [ = sProperty ]

Possible Values

sProperty

String that specifies or receives the name of the property whose value changes during the event.

The property is read/write. The property has no default value.

Expressions can be used in place of the preceding value(s), as of Microsoft® Internet Explorer 5. For more information, see About Dynamic Properties .

Remarks

You can alter the value of propertyName by using it with the onpropertychange event.

Example

This example uses the onpropertychange event to change the value of the propertyName property.

<HEAD>
<SCRIPT>
function changeProp()
{ btnProp.value = "This is the new VALUE"; }
function changeCSSProp()
{ btnStyleProp.style.backgroundColor = "aqua"; }
</SCRIPT>
</HEAD>
<BODY>
<P>The event object property propertyName is used here to return which property has been altered.</P>
<INPUT TYPE=button ID=btnProp onclick="changeProp()" VALUE="Click to change the VALUE property of this button" onpropertychange='alert(event. propertyName + " property has changed value")'>
<INPUT TYPE=button ID=btnStyleProp onclick="changeCSSProp()" VALUE="Click to change the CSS backgroundColor property of this button" onpropertychange='alert(event. propertyName + " property has changed value")'>
</BODY>

Standards Information

There is no public standard that applies to this property.

Applies To

Platform Version

Win16:
Win32:
Unix:
Mac:
Windows CE:

event

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