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RE: Problem on MSXML IXMLDOMDocument.load()

• From: Michael Brennan <Michael_Brennan@a...>
• To: "'Owen, Noel'" <NOwen@s...>, xml-dev@l...
• Date: Thu, 24 May 2001 18:12:57 -0700

By default, the DOM document loads XML asynchronously. That means they way
you've coded it, the XML may not be parsed, yet, when you try to access the
root document element. Also, if a parse error occurs, it will not return an
HResult indicating failure. You should be passing the address of a
VARIANT_BOOL as the second argument to load. That will be set to false if
the parse fails, true if it succeeds.

For example, replace your "load" line with something like the following:

  hr = pobjSchemaIXMLDOMDocumentPtr->put_async(VARIANT_FALSE);
  VARIANT_BOOL fSuccess;
  hr = pobjSchemaIXMLDOMDocumentPtr->load("sample.xml", &fSuccess);
  if ( FAILED(hr))
  {
	// handle COM failure
  }
  else if(fSuccessful != VARIANT_TRUE)
  {
	// handle parse error
  }



> -----Original Message-----
> From: Owen, Noel [mailto:NOwen@s...]
> Sent: Thursday, May 24, 2001 5:30 PM
> To: xml-dev@l...
> Subject: Problem on MSXML IXMLDOMDocument.load()
> 
> 
> Hi guys,
> 
> I'm having trouble using the load() method of 
> IXMLDOMDocument. Somehow the
> load() is working, and as a result, the pIXMLDOMElement 
> returns NULL.  Have
> you tried using load() before, and did it work?
> 
> 
> 
> 
> **************************************************************
> **************
> ************************************************ My source code:
> 
> 	IXMLDOMDocumentPtr	pobjSchemaIXMLDOMDocumentPtr = NULL;
> 
> 	hr = CoCreateInstance(CLSID_DOMDocument, NULL, 
> CLSCTX_INPROC_SERVER,
> IID_IXMLDOMDocument, (void **) &pobjSchemaIXMLDOMDocumentPtr);
> 	if (FAILED(hr))
> 	{
> 		printf("Bad\n");
> 		return(0);
> 	}
> 	else if (NULL == pobjSchemaIXMLDOMDocumentPtr)
> 	{
> 		printf("Bad\n");
> 		return(0);
> 	}
> 	
> 	hr = pobjSchemaIXMLDOMDocumentPtr->load("sample.xml");
> 	if (FAILED(hr))
> 	{
> 		printf("Bad\n");
> 		return(0);
> 	}
> 
> 	IXMLDOMElement *pIXMLDOMElement = NULL;
> 	hr =
> pobjSchemaIXMLDOMDocumentPtr->get_documentElement(&pIXMLDOMElement);
> 	if (FAILED(hr))
> 	{
> 		printf("Bad\n");
> 		return(0);
> 	}
> 	else if (pIXMLDOMElement)
> 	{
> 		printf("Good\n");
> 
> 	}
> 	else
> 	{
> 		printf("Bad\n");
> 		return(0);
> 	}
> 
> 
> 
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