XPath help - .NET Framework

JHD

Hi,

I'm trying to use the XMLDataSource and DataList controls in Visual Web
Developer Express (VB.Net) to present the following rss file in a web
application. The problem lies in that I want to just select items (title,
description and link) that are in the 'april' category. Can anyone help me
with an XPath expression (or another way) of achieving this?

Thanks.
<rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/"
xmlns:xhtml="ht tp://www.w3.org/1999/xhtml">
<channel>
<copyright>Copy right 2007</copyright>
<description>Ne ws Alerts</description>
<link></link>
<title></title>
<language>en</language>
<lastBuildDate> Thu, 12 Apr 2007 20:32:25 GMT</lastBuildDate>
<item>
<title>News title 1</title>
<description>Ne ws description 1</description>
<link>http://link1.com</link>
<pubDate>Weds , 11 Apr 2007 23:38:35 GMT</pubDate>
<category>Busin ess</category>
<category>UK</category>
<category>April </category>
</item>
<item>
<title>News title 2</title>
<description>Ne ws description 2</description>
<link>http://link2.com</link>
<pubDate>Weds , 11 Apr 2007 23:38:35 GMT</pubDate>
<category>Sport </category>
<category>US</category>
<category>April </category>
</item>
<item>
<title>News title 3</title>
<description>Ne ws description 3</description>
<link>http://link3.com</link>
<pubDate>Fri, 23 Mar 2007 23:38:35 GMT</pubDate>
<category>Busin ess</category>
<category>UK</category>
<category>March </category>
</item>
</channel>

</rss>

Apr 17 '07 #1

Subscribe Reply

2663

pgfearo

The following XPath expression returns the elements you need in a
nodeset result:

/rss/channel/item/pubDate[contains(.,"Apr ")]/preceding-sibling::*

Cheers

Phil

http://pgfearo.googlepages.com/home
On Apr 17, 11:19 pm, "JHD" <jack_...@hotma il.comwrote:

Hi,

I'm trying to use the XMLDataSource and DataList controls in Visual Web
Developer Express (VB.Net) to present the following rss file in a web
application. The problem lies in that I want to just select items (title,
description and link) that are in the 'april' category. Can anyone help me
with an XPath expression (or another way) of achieving this?

Thanks.

<rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/"
xmlns:xhtml="ht tp://www.w3.org/1999/xhtml">
<channel>
<copyright>Copy right 2007</copyright>
<description>Ne ws Alerts</description>
<link></link>
<title></title>
<language>en</language>
<lastBuildDate> Thu, 12 Apr 2007 20:32:25 GMT</lastBuildDate>
<item>
<title>News title 1</title>
<description>Ne ws description 1</description>
<link>http://link1.com</link>
<pubDate>Weds , 11 Apr 2007 23:38:35 GMT</pubDate>
<category>Busin ess</category>
<category>UK</category>
<category>April </category>
</item>
<item>
<title>News title 2</title>
<description>Ne ws description 2</description>
<link>http://link2.com</link>
<pubDate>Weds , 11 Apr 2007 23:38:35 GMT</pubDate>
<category>Sport </category>
<category>US</category>
<category>April </category>
</item>
<item>
<title>News title 3</title>
<description>Ne ws description 3</description>
<link>http://link3.com</link>
<pubDate>Fri, 23 Mar 2007 23:38:35 GMT</pubDate>
<category>Busin ess</category>
<category>UK</category>
<category>March </category>
</item>
</channel>

</rss>

May 4 '07 #2

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