ontransformnode Event
Fires before the style sheet is applied to a node.
Important Theontransformnode
event does not fire onDOMDocument
for style sheets using the XSLT namespace"http://www.w3.org/1999/XSL/Transform"
. It does, however, fire onDOMDocument
for style sheets using the XSL namespace"http://www.w3.org/XSL/Transform/1.0"
or where MSXML 3.0 is installed you use"http://www.w3.org/TR/WD-xsl"
to declare the older XSL namespace .
Script Syntax
boolVal = ontransformnode(nodeCode, nodeData);
Parameters
- nodeCode
- The indicator of the current node in the style sheet.
- nodeData
- The indicator of the current node in the XML source data.
Return Value
True to indicate that transformation processing is to continue; False to indicate that transformation processing should stop.
Visual Basic Syntax
boolVal = ontransformnode(nodeCode, nodeData)
Parameters
- nodeCode
- The indicator of the current node in the style sheet.
- nodeData
- The indicator of the current node in the XML source data.
Return Value
True to indicate that transformation processing is to continue; False to indicate that transformation processing should stop.
Example
In this example, the XML data island named "target" contains the XML source data, and the XML data island named "ss" contains the XSL Transformations (XSLT) style sheet.
<XML id="target">
<PEOPLE>
<PERSON name="Atkinson, Teresa" />
<PERSON name="Debroux, Steve" />
<PERSON name="O'Hara, Robert" />
<PERSON name="Porzuczek, Peter" />
</PEOPLE>
</XML>
<XML id="ss">
<xsl:template match="/" xmlns:xsl="http://www.w3.org/XSL/Transform/1.0
">
<xsl:for-each select="/PEOPLE/PERSON/@name" >
<P><xsl:value-of /></P>
</xsl:for-each>
</xsl:template>
</XML>
Example
This script contains the Verify
function, which sets the ontransformnode
property to the event handler, onxform
. The event handler is called before the transformation operation on each node so that, given the sample data provided in the data islands, this sample calls the alert several times.
<SCRIPT LANGUAGE="javascript" FOR="window" EVENT="onload"> document.expando = false; Verify(); </SCRIPT> <Script LANGUAGE="javascript"> function onxform ( code, doc ) { alert("Target document node being transformed:\n\n" + doc.xml + "\n\nStylesheet node used for the transform:\n\n" + code.xml); if (doc.value == "O'Hara, Robert") return false; // Stop processing. else return true; } function Verify() { target.ontransformnode = onxform; var sOut = target.XMLDocument.transformNode(ss.XMLDocument); div.innerHTML += sOut; } </Script> <DIV id="div"></DIV> </BODY> </HTML>
The return value from the event handler indicates whether to continue processing. In this example, the event handler checks for a particular data value and returns the value "false" to stop transformation processing.
C/C++Syntax
HRESULT ontransformnode( IXMLDOMNode *pCode, IXMLDOMNode *pData, VARIANT vBool);
Parameters
- pCode [in]
- The address of the current node in the XSL style sheet.
- pData [in]
- The address of the current node in the XML source data.
- vBool [out, retval]
- Boolean. True if transformation processing is to continue; False to stop transformation processing.
C/C++ Return Values
- S_OK
- The value returned if successful.
Remarks
The event handler for this event can be explicitly set using the ontransformnode
property.
This member is an extension of the Worldwide Web Consortium (W3C) Document Object Model (DOM).
To view reference information for Visual Basic, C/C++, or Script only, click the Language Filter button in the upper-left corner of the page.
See Also
Applies to: DOMDocument