Microsoft® Windows® Script Component createEventObject Method |
Behavior Handler Reference |
Creates a DHTML event object to be used in passing event context information to the containing document when the fireEvent method is called.
Syntax
oEvent = behavior.createEventObject()
Values
- behavior
- The ID of the <implements> element used to implement the Behavior interface.
Note By default, the createEventObject method has global scope and can be accessed without referencing the Behavior handler ID. For example, instead of using Behavior.createEventObject as shown in the syntax, you can simply call the function as createEventObject. For more details, see the <implements> element.
- oEvent
- An event object created by the method.
Remarks
The same event object cannot be reused in multiple fireEvent calls.
Example
The following partial script component is derived from a hypothetical calculator script component. Whenever the result changes, the script component fires a custom onResultChange event back to the page, passing the result as an expando property of the event object.
Note A CDATA section is required to make the script in the <script> element opaque. For details, see Script Component Files and XML Conformance.
<component> <implements type="Behavior"> <event name="onResultChange"/> </implements> <script language="JScript"> <![CDATA[ attachEvent("onclick", doCalc); function doCalc() { // Code here to perform calculation. Results are placed into // the variable sResult. oEvent = createEventObject(); oEvent.result = sResult; fireEvent("onResultChange",oEvent); } ]]> </script> </component>
The following shows what the containing DHTML page might look like. When the
onResultChange event fires, the results of the calculation are extracted from expando
property result
of the DHTML window.event object and displayed in the
resultWindow <DIV> element.
<HTML>
<HEAD>
<xml:namespace prefix="LK" />
<style>
LK\:CALC {behavior:url(engine.wsc)}
</style>
<script language="JScript">
function showResults(){
resultWindow.innerText=window.event.result;
}
</script>
</HEAD>
<LK:CALC id="myCalc" onResultChange="showResults()">
<TABLE>
<TR>
<DIV ID=resultWindow
STYLE="border: '.025cm solid gray'"
ALIGN=RIGHT>0.</DIV>
</TR>
<TR>
<TD><INPUT TYPE=BUTTON VALUE=" 0 "></TD>
<TD><INPUT TYPE=BUTTON VALUE="+/-"></TD>
<TD><INPUT TYPE=BUTTON VALUE=" . "></TD>
<TD><INPUT TYPE=BUTTON VALUE=" + "></TD>
<TD><INPUT TYPE=BUTTON VALUE=" = "></TD>
<TR>
</TABLE>
</LK:CALC>
</HTML>