JavaScript method: XML.getNodeValue()

This method returns a string representing the value of the current element. It requires you use the other XML get methods to navigate through an XML document.

Syntax

XML.getNodeValue();

Arguments

There are no arguments for this method.

Return values

A string or null.

The method returns a string representing the value of the current XML element or returns null if the current node has no value.

Example

This example displays the value of the elements in an XML document.

This example requires the following sample data:

• A local XML file (for example, C:\test02.xml which contains <document><parent1>value1</parent1><parent2></parent2></document>)

/* Create variables to store XML objects and strings.
*  Use XMLObject to store a valid XML object such as an XML file.
*  Use sourceXMLString to store a valid XML string.
*  The script sets the content of XMLString to sourceXMLString.
*  The script assigns values to the empty variables later on */
var XMLFile = new XML();
XMLFile = XMLFile.setContent( "C:\\test02.xml", true );
var XMLSource;
var TargetNode;

/* Create a function that searches an XML object (node) for a particular
*  element (targetElem) and returns an XML object containing the element.
*  This function assumes that there is only one instance of the target
*  element in the source data. If it finds more than one element in the
*  data it only returns the first instance of the element. */
function findTargetElement( node, targetElem )
{
 var topNodeName = node.getNodeName();
 while (node != null && node.getNodeName() != targetElem )
 {
  var childNode = node.getFirstChildElement();
  if (childNode == null)
  {
   childNode = node.getNextSiblingElement();
   while (childNode == null)
   {
    node = node.getParentNode();
    if ( node == null || topNodeName == node.getNodeName() )
    {
     return null;
    }
    childNode = node.getNextSiblingElement();
   }
   node = childNode;
  }
  else
  {
   node = childNode;
  }
 }
 return node;
}

/* Create a function to print the target element and search results */
function printFindResults( searchResult, targetNode )
{
 print( "The target element we are looking for is: " + targetNode );
 if ( searchResult != null )
 {
  var elementName = searchResult.getNodeName();
  print( "Found element " + elementName + " in: \n" + searchResult + "\n" );
  findValue( searchResult, targetNode );
  return searchResult
 }
 else
 {
  print( "Cannot find " + target );
  return null
 }
}

/* Create a function to find the parent node element of the target element */
function findValue( sourceObject, targetNode )
{
 var valueFound = sourceObject.getNodeValue();
 if ( valueFound.length >= 1 )
 {
  print( "The value of " + targetNode + " is: " + valueFound );
  return valueFound
 }
 else
 {
  print( "There is no value for " + targetNode );
  valueFound = null
  return valueFound
 }
}

/* Set variable values for XMLFile and TargetNode. Run functions.  */
print( "Processing XML from XMLFile... \n" );
TargetNode = "parent1"
XMLSource = XMLFile
searchResults = findTargetElement( XMLSource, TargetNode );
printFindResults( searchResults, TargetNode );

/* Set variable values for XMLFile and TargetNode. Run functions.  */
print( "Processing XML from XMLFile... \n" );
TargetNode = "parent2"
XMLSource = XMLFile
searchResults = findTargetElement( XMLSource, TargetNode );
printFindResults( searchResults, TargetNode );