Hi Steve,

I have read once over your problem but not tried too hard to understand 
it fully.  As a gut feeling you might be well to try accessing the 
relevant nodesets with other XPath axes like preceding:: and following:: 
together with appropriate predicates.  Like I say this is only a hunch 
given 5 seconds thought, though I am sure that XPath is powerful enough 
to solve your particular problem if you persist.

Regards
Justin Johansson


steve.hayter@v... wrote:
> Hi,
> 
> Bit of a strange query with XPath here. Essentially I have an XML
> document with multiple lists, each containing multiple items. Some
> items can only be available depending on specific values being
> selected in other lists. So a typical XML chunk may look like this:
> 
> <list id="4"
>    <item id="1" text="Leeds">
>      <dependentlist id="1">
>        <dependentitem id="1" />
>      </dependentlist>
>      <dependentlist id="2">
>        <dependentitem id="1" />
>      </dependentlist>
>    </item>
>  </list>
> 
> Meaning that this item is only available if item 1 has been selected
> in list 1, AND item 1 has been selected in list 2.
> 
> Now I am using XPath to get items for a list, and the selected items.
> So I am basically looking for all the item nodes where the
> dependentlist is 1 AND 2, and the relevant item id is selected.
> 
> Now I have tried:
> 
> /lists/list[@id='4']/item/dependentlist/dependentitem[@id='1']/
> parent::*[@id='1' and @id='2']/parent::*
> 
> But this obviously doesn't work since the parent node doesn't have
> @ids of 1 and 2. I have also tried
> 
> /lists/list[@id='4']/item/dependentlist/dependentitem[@id='1']/
> parent::*[@id='1' or @id='2']/parent::*
> 
> But again, not right since it finds items with dependentlists of 1 OR
> 2 = whereas I want both.
> 
> So in plain english, I want to return all the item nodes that contain
> all nodes for specified dependentlists (in the example above, 1 and
> 2). So if I searched for dependentlists 1 and 3, nothing would be
> returned.
> 
> Is this even possible? Can anyone give me a nudge in the right
> direction? :)
> 
> Please go easy on me, I am fairly new to this Xpath stuff!
> 
> Thanks
> 
> Steve
>