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Re: Avoid NodeType Comment

From: Martin Honnen <mahotrash@-----.-->
To: NULL
Date: 3/3/2006 4:03:00 PM


Rasmus wrote:


> But the xsd allows this xml to pass:
> 
> <book>
>   <!-- a comment -->
>   <author  id="1" />
> </book>
> 
> In my code (c#) i do:
> 
> string id = bookNode.FirstChild.Attributes["id"];

Then don't do it that way, there are much safer and much more elegant 
ways, with .NET you can simply do e.g.
     XmlElement authorElement = bookNode["author"] as XmlElement;
     if (authorElement != null) {
       id = authorElement.GetAttribute("id");
     }
Don't rely on child node positions to access elements, white space, 
comments, processing instruction can all change the position of an 
element. Simply use other access methods like above or like XPath 
(SelectSingleNode("author")) where you explictly access elements if you 
are looking for elements.




-- 

	Martin Honnen --- MVP XML
	http://JavaScript.FAQTs.com/

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