September 6, 2008 03:28pm pdt

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	[x] Attachment Details

How do I find attributes using xpath?

Zones: Extensible Markup Language (XML), Microsoft Visual Basic.Net

Tags: xpath, xml, vb.net

I want to get the attribute value of the first yweather:forecast node in the code snippet.

I've already got it using:
Dim xml As String = GetXML(RSS_URL)
Dim dom As XmlDocument = New XmlDocument
dom.LoadXml(xml)
Dim forecastPath As String = "/rss/channel/item/*[local-name()='forecast']"
Dim low As String = dom.SelectSingleNode(forecastPath).Attributes("low").Value

my question is how do I get the whole path without using the Attributes("low").Value?
How do I get the whole path including low attribute just from the forecastPath?

         
           
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             <?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<rss version="2.0" xmlns:yweather="http://xml.weather.yahoo.com/ns/rss/1.0" xmlns:geo="http://www.w3.org/2003/01/geo/wgs84_pos#">
<channel>
 
<title>Yahoo! Weather - Sydney Regional Office, AS</title>
<link>http://us.rd.yahoo.com/dailynews/rss/weather/Sydney_Regional_Office__AS/*http://weather.yahoo.com/forecast/ASXX0274_f.html</link>
<description>Yahoo! Weather for Sydney Regional Office, AS</description>
<language>en-us</language>
<lastBuildDate>Thu, 06 Mar 2008 3:00 pm AEDT</lastBuildDate>
<ttl>60</ttl>
<yweather:location city="Sydney Regional Office" region=""   country="AS"/>
<yweather:units temperature="F" distance="mi" pressure="in" speed="mph"/>
<yweather:wind chill="81"   direction="40"   speed="20" />
<yweather:atmosphere humidity="54"  visibility="6.21"  pressure="30.09"  rising="2" />
<yweather:astronomy sunrise="6:47 am"   sunset="7:25 pm"/>
<image>
<title>Yahoo! Weather</title>
<width>142</width>
<height>18</height>
<link>http://weather.yahoo.com</link>
<url>http://l.yimg.com/us.yimg.com/i/us/nws/th/main_142b.gif</url>
</image>
<item>
<title>Conditions for Sydney Regional Office, AS at 3:00 pm AEDT</title>
<geo:lat>-33.85</geo:lat>
<geo:long>151.2</geo:long>
<link>http://us.rd.yahoo.com/dailynews/rss/weather/Sydney_Regional_Office__AS/*http://weather.yahoo.com/forecast/ASXX0274_f.html</link>
<pubDate>Thu, 06 Mar 2008 3:00 pm AEDT</pubDate>
<yweather:condition  text="Fair"  code="34"  temp="81"  date="Thu, 06 Mar 2008 3:00 pm AEDT" />
<description><![CDATA[
<img src="http://l.yimg.com/us.yimg.com/i/us/we/52/34.gif"/><br />
<b>Current Conditions:</b><br />
Fair, 81 F<BR />
<BR /><b>Forecast:</b><BR />
Thu - Clear. High: 80 Low: 63<br />
Fri - Mostly Sunny. High: 78 Low: 66<br />
Sat - AM Showers. High: 77 Low: 66<br />
Sun - Sunny. High: 78 Low: 60<br />
Mon - Sunny. High: 78 Low: 61<br />
<br />
<a href="http://us.rd.yahoo.com/dailynews/rss/weather/Sydney_Regional_Office__AS/*http://weather.yahoo.com/forecast/ASXX0274_f.html">Full Forecast at Yahoo! Weather</a><BR/>
(provided by The Weather Channel)<br/>
]]></description>
<yweather:forecast day="Thu" date="6 Mar 2008" low="63" high="80" text="Clear" code="31" />
<yweather:forecast day="Fri" date="7 Mar 2008" low="66" high="78" text="Mostly Sunny" code="34" />
<yweather:forecast day="Sat" date="8 Mar 2008" low="66" high="77" text="AM Showers" code="39" />
<yweather:forecast day="Sun" date="9 Mar 2008" low="60" high="78" text="Sunny" code="32" />
<yweather:forecast day="Mon" date="10 Mar 2008" low="61" high="78" text="Sunny" code="32" />
<guid isPermaLink="false">ASXX0274_2008_03_06_15_00_AEDT</guid>
</item>
</channel>
</rss><!-- api4.weather.sp1.yahoo.com compressed Wed Mar  5 20:31:12 PST 2008 -->

           
         

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9.9

Question Stats

Zone: Web Development

Question Asked By: fuchangmiao

Solution Provided By: Gertone

Participating Experts: 2

Solution Grade: A

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