NEWBIE:Cannot get to subnode using getFirstChild

[Williams Roger <RW...@OLDMUTUAL.com>]

I need help

I am trying to walk through all the ChildNodes in a Node.
I can get to the ParentNode(properties) by using getElementsByTag, but i
can't seem to get a Node representation of the first child(propone) of the
ParantNode(properties). 

My XML Document looks like:
<?xml version='1.0' encoding='ascii'?>
<root>
	<surname>abcdef</surname>
	<properties>
		<propone>aaaa</propone>
		<proptwo>bbbb</proptwo>
	</properties>
</root>

code snippet:

		Parser.parse("c:/myxml.xml");	//option2:use file
		DOM_Document DomDoc = Parser.getDocument();
		DOM_NodeList NodeList =
DomDoc.getElementsByTagName("properties"); 
		int nElmts = NodeList.getLength();
		printf("\nnElmts\t%d\n",nElmts);
		DOM_Node Node = NodeList.item(0);
		if (Node.isNull())
			return 0;
		unsigned int ln = 0;
		ln = NodeList.getLength();
		short NodeType = 0;
		NodeType = Node.getNodeType();
		
		DOMString dsVal0=Node.getNodeName();
		int ln0 = dsVal0.length();
		char *szVal0 = dsVal0.transcode();
		cout<<"\nNodeName of properties Node: "<<szVal0<<"\n";

		DOM_Node SubNode = Node.getFirstChild();
		DOMString dsVal1=SubNode.getNodeName();
		int ln1 = dsVal1.length();
		char *szVal1 = dsVal1.transcode();
		cout<<"\nNodeName of first property Node: "<<szVal1<<"\n";

Problem two
How do I get a list of all the nodes which are only one level under a
parentnode? If I do a ParentNode.getChildNodes, I get all the Nodes
including the ones which lies deeper than the nodes directly under the
parentnode. 

from
Rog


---------------------------------------------------------------------
To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
For additional commands, e-mail: xerces-c-dev-help@xml.apache.org

Re: NEWBIE:Cannot get to subnode using getFirstChild

[Bill Schindler <bi...@bitranch.com>]

On Friday, March 23, 2001, at 09:57  AM, Williams Roger wrote:
> 	<properties>
> 		<propone>aaaa</propone>
> 		<proptwo>bbbb</proptwo>
> 	</properties>

If you checked the type of the first node of <properties> you would 
discover that it is not an element node. The DOM tree that's created 
from your XML above would produce something like:

  ELEMENT: properties
   TEXT: a line-feed and several spaces
   ELEMENT: propone
    TEXT: aaaa
   ELEMENT: proptwo
    TEXT: bbbb
   TEXT: a line-feed and several spaces

In other words, the first child of <properties> isn't an element. If you 
want the first element node, you'll need to walk through the child nodes 
until you find an element node.

--Bill

---------------------------------------------------------------------
To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
For additional commands, e-mail: xerces-c-dev-help@xml.apache.org

RE: NEWBIE:Cannot get to subnode using getFirstChild

["David E. Cleary" <da...@progress.com>]

> I need help
>
> I am trying to walk through all the ChildNodes in a Node.
> I can get to the ParentNode(properties) by using getElementsByTag, but i
> can't seem to get a Node representation of the first child(propone) of the
> ParantNode(properties).
>
> My XML Document looks like:
> <?xml version='1.0' encoding='ascii'?>
> <root>
> 	<surname>abcdef</surname>
> 	<properties>
> 		<propone>aaaa</propone>
> 		<proptwo>bbbb</proptwo>
> 	</properties>
> </root>

The first child is a text node that contains an LF and space or tab
characters. The second child is propone.

> Problem two
> How do I get a list of all the nodes which are only one level under a
> parentnode? If I do a ParentNode.getChildNodes, I get all the Nodes
> including the ones which lies deeper than the nodes directly under the
> parentnode.

No you don't. You get just the children of that node, which include text
nodes as well as element nodes.

Dave


---------------------------------------------------------------------
To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
For additional commands, e-mail: xerces-c-dev-help@xml.apache.org