Re: selecting issue

i already fixed this in a question to expert-exchange:

http://www.experts-exchange.com/Web_Development/Web_Languages-Standards/XML/XPath/Q_23668679.html




trenttorkelson wrote:
> 
> this is my xml:
> 
> </ROOT>
> <Item Segment="COMFIN" Dept="Blackberry" Category1="Active Directory"
> Category2="Password Reset" Code="Reset" />
> <Item Segment="GEHC" Dept="Remote Support" Category1="Hardware"
> Category2="Cable" Code="Replace" />
> <Item Segment="Plastics" Dept="Blackberry" Category1="Software"
> Category2="Casing" Code="Install" />
> <Item Segment="Plastics" Dept="Remote Support" Category1="Hardware"
> Category2="Casing" Code="Repair" />
> <Item Segment="Plastics" Dept="Site Support" Category1="Hardware"
> Category2="Parts &amp; Vendor 5.0" Code="Replace" />
> </ROOT>
> 
> this is my query:
> 
> "/ROOT/Item[@Dept='Site Support' and
> not(@Category1=preceding::Item/@Category1)]/@Category1"
> returns nothing
> 
> for those of you that it isn't plain to see, i'm attempting to select all
> Item nodes that have a attrib of Dept/with value of Site Support, and
> also, the preceding nodes must not have duplicate category1 values.
> then the query gets the category1 attribute nodes from the Item nodes.
> 
> This does not work correctly on this expression, but it does here:
> 
> "/ROOT/Item[@Dept='Blackberry' and
> not(@Category1=preceding::Item/@Category1)]/@Category1"
> returns active directory, and software
> 
> my assumption is that the reason that i get no results on the first query
> is that there is only one dept attribute with the site support value, and
> because of the way that i've formatted my query string, it removes the
> nodes that it finds in the first expression when it test's the second
> expression. that's my guess though..
> 
> any help? please? 
> 

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Received on Saturday, 23 August 2008 13:49:22 UTC