length Property (IXMLDOMNamedNodeMap)
Indicates the number of items in the collection.
lValue = oXMLDOMNamedNodeMap.length;
Example
var xmlDoc = new ActiveXObject("Msxml2.DOMDocument.3.0"); var nodeBook, namedNodeMap; xmlDoc.setProperty("SelectionLanguage", "XPath"); xmlDoc.async = false; xmlDoc.load("books.xml"); if (xmlDoc.parseError.errorCode != 0) { var myErr = xmlDoc.parseError; WScript.Echo("You have error " + myErr.reason); } else { nodeBook = xmlDoc.selectSingleNode("//book"); namedNodeMap = nodeBook.attributes; WScript.Echo(namedNodeMap.length); }
lValue = oXMLDOMNamedNodeMap.length
HRESULT get_length(
long *listLength);
Parameters
listLength[out, retval]
The number of items in the collection.
C/C++ Return Values
S_OK
The value returned if successful.
E_INVALIDARG
The value returned if the listLength is Null.
Example
IXMLDOMNode *pIXMLDOMNode = NULL; IXMLDOMNamedNodeMap *pIXMLDOMNamedNodeMap = NULL; IXMLDOMElement *pIXMLDOMElement = NULL; long lLength; TCHAR strTemp[10]; HRESULT hr; IXMLDOMDocument *pIXMLDOMDocument = NULL; try { // Create an instance of DOMDocument and initialize pIXMLDOMDocument. // Load/create an XML fragment. hr = pIXMLDOMDocument->get_documentElement(&pIXMLDOMElement); SUCCEEDED(hr) ? 0 : throw hr; if(pIXMLDOMElement) { hr = pIXMLDOMElement->get_attributes(&pIXMLDOMNamedNodeMap); if(SUCCEEDED(hr) && pIXMLDOMNamedNodeMap) { hr = pIXMLDOMNamedNodeMap->get_length(&lLength); if(SUCCEEDED(hr)) { _itot(lLength, strTemp, 10); ::MessageBox(NULL, strTemp, _T("Number of Attributes"), MB_OK); } pIXMLDOMNamedNodeMap->Release(); pIXMLDOMNamedNodeMap = NULL; } pIXMLDOMElement->Release(); pIXMLDOMElement = NULL; } } catch(...) { if(pIXMLDOMElement) pIXMLDOMElement->Release(); if(pIXMLDOMNamedNodeMap) pIXMLDOMNamedNodeMap->Release(); DisplayErrorToUser(); } // Release pIXMLDOMDocument when finished with it.
Long integer. The property is read-only.
Implemented in: MSXML 3.0, MSXML 6.0
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