How to fetch UNIQUE IDs from XML tree

[archer2002]

Hello, I have the XSLT question.
I have the XML like
<nodes>
<node id = &quot;1&quot;/>
<node id = &quot;1&quot;/>
<node id = &quot;1&quot;/>
<node id = &quot;2&quot;/>
<node id = &quot;2&quot;/>
<node id = &quot;2&quot;/>
<node id = &quot;3&quot;/>
<node id = &quot;3&quot;/>
<node id = &quot;3&quot;/>
</nodes>

I have XSLT for-each loop like:
<xsl:for-each select=&quot;/nodes/node&quot;>
<xsl:value-of select=&quot;@id&quot;/>
...
</xsl:for-each>
I have output:
1
1
1
2
2
2
3
3
3
But I want each node with unique @id to be passed ONLY ONCE!
I other words I wanna have th output like
1
2
3

Please, help....
Sincerely,
Arsen

 

[flumpy]

yea this gets a bit sticky.


afaik, you will need to use grouping on the values. this requires a little knowledge of keys, which are a little too involved to describe here.

take a look at the xslt tag &quot;<xsl:key>&quot; on any dev page. I found this one for you but there are loads more.

http://www.eggheadcafe.com/articles/20010508.asp

hope this helps

 

[archer2002]

Thank you.
Very helpful solution.
Sincerely,
Arsen