Best Practice: Loop through Nodes in NodeList vs. XPathNodeIterator

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panik - 08 Oct 2003 08:09 GMT

Hi,

say I have an xml file with an X number of nodes I want to loop through (to,
for example, display each node as a HyperLink in an asp.net webpage). Which
of both is best practice:

1. Loop through a NodeList (e.g.: foreach XmlNode in XmlNodeList ... )
2. or use an XPathNodeIterator

Are there any differences in performance? Are both used for different
situations?

Thanks,
Vincent

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Oleg Tkachenko - 08 Oct 2003 16:27 GMT

> say I have an xml file with an X number of nodes I want to loop through (to,
> for example, display each node as a HyperLink in an asp.net webpage). Which
> of both is best practice:
>
> 1. Loop through a NodeList (e.g.: foreach XmlNode in XmlNodeList ... )
> 2. or use an XPathNodeIterator

I assume you get XmlNodeList via SelectNodes() method. Then both approaches
are equivalent, becuase SelectNodes() is just a wrapper around
XPathNodeIterator, which provides list-like functionality.

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Oleg Tkachenko
http://www.tkachenko.com/blog
Multiconn Technologies, Israel

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